Codam Basic Plus V3.0 User Manual

LEM NORMA GmbH Liebermannstrasse F01 CAMPUS 21 A 2345 Brunn am Gebirge AUSTRIA Tel.: +43(0)2236-691-0 E-Mail: [email protected] Internet: www.lem.com

Operating Instructions Software for MEMOBOX 800, 808,

MEMOBOX 300, 300 smarsmarsmarsmartttt

CODAM BASIC/PLUS for versions >V 3.0.0.0

ii Codam Basic Plus EO 0401G Rev. C

Order number: EO 0401G

Version: Revision C The manufacturer reserves the right to change any information without notice. © LEM NORMA GmbH, All rights reserved

Codam Basic Plus Table of contents iii EO 0401G Rev. C

Table of Contents

1. Introduction ..............................................7

1.1 About this Manual ...................................... 7

1.2 CODAM - General ...................................... 9

1.3 Features of MEMOBOX ............................ 10

2. Installation ..............................................15

2.1 System Requirements .............................. 15

2.2 CODAM BASIC/PLUS Installation ............. 16

3. CODAM BASIC/PLUS - First Steps..........19

3.1 Open Codam Software ............................. 19

3.2 Selection of serial port .............................. 20

3.3 Definition of a Job .................................... 20

3.4 Programming the MEMOBOX ................... 29

3.5 Install the MEMOBOX on site .................. 30

3.6 Verify connections – ONLINE Mode .......... 31

3.7 Reading out the Measurement Data .......... 33

3.8 Analysing the Measurement Data.............. 38

4. Reference...............................................47

4.1 Tool Bar................................................... 47

4.2 Menu Commands..................................... 54

4.3 Menu File ................................................ 54

4.3.1 Select a measurement ............................... 54

4.3.2 Close the measurement ............................ 55

4.3.3 Select with voltage transformer

..................................... 55

iv Codam Basic Plus EO 0401G Rev. C

4.3.4 Change current transformer

.......................................56

4.3.5 Change nominal apparent power

.......................................57

4.3.6 Information about measurement ..................58

4.3.6 Print document............................................60

4.3.7 Setup Printer ..............................................60

4.3.8 Export ...........................60

4.3.9 Export (VSE format) ......66

4.3.10 Export .........................67

4.3.11 <1..9 File name> .......................................67

4.3.12 Close, Exit ................................................67

4.4 Menu MEMOBOX ..................................... 68

4.4.1 Read results ...............................................68

4.4.2 Read previous measurement data ...............70

4.4.3 Job processing measurement function P, Q .............................................................70

4.4.4 Job templates .............................................85

4.4.5 Set date/time ..............................................85

4.4.6 Set designation ...........................................86

4.4.7 Reset..........................................................87

4.4.8 New measurement function .........................91

4.4.9 Update licence ............................................93

4.4.10 MEMOBOX Information ............................94

4.4.11 Online Data from MEMOBOX.....................95

4.5 Menu Analysis ......... 96

4.5.1 Graphical Summary.....................................96

4.5.2 Table summary ...........................................99

4.5.3 Cumulative frequency (function Q only)......102

4.5.4 Level-time diagram: Channel selection options.......................................................106

4.5.4.1 Application oriented analysis ..................107

4.5.4.2 Level time diagram – manual channel selection ....................................................109

Codam Basic Plus Table of contents v EO 0401G Rev. C

4.5.4.3 Level time diagram: Data menu ............. 117

4.5.4.4 Measurement value list ......................... 118

Correlations of voltages and currents ................ 120

4.5.5 Events.................................................... 121

4.5.5.1 Events - Measurement value list ............ 122

4.5.6 Statistical values (version Q only)............. 123

4.5.7 Most critical values (function Q only) ........ 125

4.5.9 All exceedings (version Q only) ................ 127

4.6 Menu Settings ....................................... 128

4.6.1 General…............................................... 129

4.6.2 Limit value level file ................................. 131

4.6.3 Application oriented analysis file .............. 140

4.6.4 Colours... ............................................... 145

4.6.5 Print diagram without background ............ 145

4.6.6 Analyse phase L1 only............................. 146

4.6.7 Curve width ............................................ 146

4.6.8 German, English, French, Italian, Slovak, Croatian, Spanish, Finnish, Lithuanian ............................................... 146

4.6.9 Export ....................... 147

4.7 Menu Window........................................ 149

4.7.1 New Window........................................... 149

4.7.2 Cascade ................................................. 149

4.7.3 Tile windows ........................................... 149

4.7.4 Arrange icons ......................................... 149

4.7.5 "Window name"....................................... 149

4.8 Menu Info .............................................. 149

4.8.1 Info about CODAM.. ................................ 149

5. Glossary ............................................... 151

6. Index .................................................... 153

7. Appendix: Abbreviations, symbols .......... 159

vi Codam Basic Plus EO 0401G Rev. C

Codam Basic Plus Introduction 7 EO 0401G Rev. C

1. Introduction

This chapter will familiarise with the most important aspects of CODAM BASIC/PLUS. It will also provide important information about how to use this manual.

1.1 About this Manual To keep the manual short only the specific commands are described in detail. The use should be familiar with operation of

Windows 98 / NT / ME / 2000 / XP. Knowledge about the standard EN 50160 is

necessary. Within this document “MEMOBOX” is used for MEMOBOX 800, MEMOBOX 808, MEMOBOX 300, MEMOBOBX 300 smart. Note: This manual deals with CODAM BASIC and CODAM PLUS. Functions of CODAM PLUS are

marked with features which are available in CODAM BASIC only are marked with

.

8 Codam Basic Plus EO 0401G Rev. C

The manual is divided into several chapters:

1. Introduction

2. Installation of CODAM BASIC/PLUS This chapter provides information about installing the CODAM BASIC/PLUS software.

3. First Steps with CODAM BASIC/PLUS

An example demonstrates the usage of MEMOBOX version P and CODAM BASIC/PLUS. The application of version Q is very similar. Please, read this chapter carefully before initial measurements.

4. Reference for CODAM BASIC/PLUS This chapter explains the individual commands and dialog boxes in CODAM BASIC/PLUS. Refer to this section if you need special information.

5. Glossary contains most important terms associated with the use of CODAM BASIC/PLUS.

6. Index

7. Appendix: Abbreviations, symbols


1.2 CODAM - General

CODAM is the abbreviation for: COmputer assisted measurement Data Analysis and Management CODAM BASIC/PLUS is the operational and analysis program for the MEMOBOX. CODAM BASIC/PLUS can be used on PCs with MS WINDOWS 98 / ME / NT / 2000 / XP. CODAM BASIC is reduced version of CODAM PLUS has data export functions only but without graphical evaluations. It is delivered with special low cost versions of the MEMOBOX. CODAM PLUS can be used for operating MEMOBOX 800, MEMOBOX 808, MEMOBOX 300 and MEMOBOX 300 smartsmartsmartsmart. Important: Version V3.0.3.0 is the last one that supports the MEMOBOX 800. Later versions will be no more be usable for the MEMOBOX 800.


1.3 Features of MEMOBOX

MEMOBOX is a measuring instrument for monitoring the power quality and locating disturbances within low and medium voltage networks. It measures up to 3 voltages and up to 4 currents. The measured values are saved in a programmable intervals. They can be graphically or numerically evaluated subsequently with CODAM BASIC/PLUS. MEMOBOX 300, 300 smart can be delivered in two versions: Version Q assesses the voltage quality according

to the EN 50160 standard, the compliance with the above standard can be monitored, and a specific search for sources of disturbances can be performed.

Version P measures the power quantities and some selected voltage quality quantities. Using these measurement values, power consumption profiles can be created.

MEMOBOX 800 and 808 can have both licenses for P and Q measuring function


Available hardware, measurement configurations:

Measured parameters

1U 3U 3U 3I 3U 4I

Voltage (mean-, max-, min-value)

L1 L1, L2, L3

L1, L2, L3

L1, L2, L3

Current L1, L2, L3 (mean-, max-value)

L1, L2, L3

L1, L2, L3, N

Voltage events (dips, swells, interruptions)

Power (P, |P|, Q, S, mean-, max-, min-value), power factor PF, tangent

Power total (P, |P|, Q, S, mean-, max-, min-value), power factor PF total, tangent total

Energy

Flicker (Pst, Plt)

THD U (voltage)

THD I (current)

Note: Versions 1U and 1U 1I are not a standard versions but are available on request. MEMOBOX 300, 300 smart can be delivered in these versions (3U, 3U + 3I, 3U + 4I) with measuring function P or Q. For details see the MEMOBOX hardware manual.


Measurement parameters

Version

Measurement value Q Quality

P Power

Voltage (mean-, max-, min-value)

Current L1, L2, L3 (mean-, max- value)

CF crest factor of current

Current IN (mean-, max- value)

CF crest factor of current IN

Voltage events (dips, swells, interruptions)

Power (P, |P|, Q, S, mean-, max-, min-value ), power factor PF, tangent

Total power (P, |P|, Q, S, mean-, max-, min-value), power factor PF, tangent total

Energy, energy total

Flicker (Pst, Plt)

Voltage harmonics (up to 40th order)

THD U (mean-, max value)

THD I (mean- max value)

Voltage interharmonics

Signalling voltages (ripple control signals)

Unbalance

Frequency

Normally, the measurements are taken over a period of one week with averaging intervals of 10 minutes. The measured values can be verified if they comply with the


EN 50160 standard or with user defined limits set in a limit value file. CODAM BASIC/PLUS features: Operation of the MEMOBOX (initialising, setting

of date and time) Programming/handling of measurement jobs ONLINE display of relevant parameters in a line

diagram Downloading of stored measurement values from

MEMOBOX to a PC Analysis of the measured values according to

EN 50160

Level-time diagram of all channels

Application-oriented analysis

Cumulative frequency (harmonics)

Statistical analysis

Various tables

Printing tables/graphical diagrams Export of the measured values to an ASCII-file Firmware upgrade of MEMOBOX CODAM PLUS can be used for operating

MEMOBOX 800, MEMOBOX 808, MEMOBOX 300 and MEMOBOX 300 smartsmartsmartsmart.

Important: Version V3.0.3.0 is the last one that supports the MEMOBOX 800. Later versions will no more be usable for MEMOBOX 800.


Codam Basic Plus Installation 15 EO 0401G Rev. C

2. Installation

This chapter provides information about installing the CODAM BASIC/PLUS software.

2.1 System Requirements CODAM BASIC/PLUS is operative on PCs with Windows 98, NT 4.0, ME / 2000 /XP with actual service pack. System requirements: 1. System requirements for Windows 98/ME

NT/2000/XP (see the respective Microsoft product).

2. Update of the operating system according to Microsoft recommendations

3. Minimum requirements for CODAM BASIC/PLUS are listed below:

PC configuration for CODAM BASIC/PLUS

necessary recommended

Free hard-disk memory 10 MB >50 MB

CD-ROM drive

Monitor 800 x 600pt 1024 x 768pt

A serial port supported by Windows for connection to MEMOBOX

Windows

98/ME/NT4.0/2000/XP

Colour printer

Important: Windows 98/NT/ME/2000/XP is not part of CODAM BASIC/PLUS delivery.


2.2 CODAM BASIC/PLUS Installation For installation on Windows NT/2000/XP systems administrator rights are required. If you do not know the update status of the operating system we recommend to update the operating system according to the directions provided by Microsoft! Connect the MEMOBOX to a serial port of PC.

1. Insert the CODAM BASIC/PLUS CD-ROM.

2. Select the Start Execute command. In the command line enter the character string <Drive letter CD-ROM>:\SETUP.EXE and click OK.

3. The CODAM BASIC/PLUS setup program will now be started. Please follow the instructions on screen. If there is an older version installed this will be removed first automatically. Afterwards, please start again the SETUP.EXE to install the actual version on your PC.

4. Select the desired language of install wizard:

Figure 1: Language selection

Codam Basic Plus Installation 17 EO 0401G Rev. C

InstallShield Wizard guides through the installation:

Figure 2: CODAM BASIC/PLUS Install Shield Wizard

5. The directory C:\Programs\LEM NORMA\ CODAM BASIC/PLUS is proposed as installation directory. The user’s default data directory with subdirectory CODAM BASIC/PLUS is suggested as data directory, e.g., C:\My documents\CODAM BASIC/PLUS.

6. Setup creates an entry in Start Menu under Programs and an icon which can be copied to the desktop by drag and drop.

7. Start CODAM BASIC/PLUS by double-clicking on the CodamBASIC/PLUS icon.

Figure 3: CodamPLUS icon on the desktop


Codam Basic Plus CODAM BASIC/PLUS - First Steps 19 EO 0401G Rev. C

3. CODAM BASIC/PLUS - First Steps

This chapter uses an example to show how to carry out a measurement with CODAM BASIC/PLUS and MEMOBOX . The measurement is performed with the measurement function P. Using the measurement function Q is very similar. Please, read this chapter carefully before initial measurement.

3.1 Open Codam Software Start CODAM BASIC/PLUS with “Start Programs CODAM BASIC/PLUS” or by double-clicking the CodamBASIC/PLUS icon.

The CODAM BASIC/PLUS window is opened.

Figure 4: CODAM PLUS window

The actual version can be seen from menu “?”-Info about CODAM:


Figure 5: CODAM PLUS info window

Important: Connect MEMOBOX to mains supply now and to the serial port of the PC with the original RS232 connector cable before you proceed. CODAM has to check the type of the connected MEMOBOX.

3.2 Selection of serial port Menu Settings General, select the serial port the MEMOBOX is connected to –e.g. COM1.

3.3 Definition of a Job

Select menu MEMOBOX – Job processing measurement function P…

In a measurement job all measurement parameters are defined: interval length, start and end time of measurement period, the nominal voltage, thresholds for events, connection mode, ratios of CTs, PTs, the frequency of local ripple control voltage. The data of a measurement job can be stored in a file, default files (job templates) can be modified as required. Click Open in section PC and select a job file:

Figure 6 Opening a job-file

Select a file and Open it. In the example, the “Lemdemo1.aup” job-file is used.


Figure 7 Job processing

Select General.

Figure 8 Job processing - General


Enter the measurement-specific text and save with OK.

Edit - Measurement period Click on Measurement period Enter desired interval length. For Time activated job define start and end time of the measurement. Important: for this mode the default values a given for 1008 intervals, which is exactly one week for 10min intervals (required for EN50160). For optimal memory usage the end time should be set manually. With option Continuous job activated the job is started immediately after having saved it to MEMOBOX . With option Switch activated job, the measurement is started with the push button START (switch position I or II for MEMOBOX 800).

Figure 9 Job processing - Measurement period

Exit from the dialog box with OK.


Current Enter current range, select current sensors, enter ratios of additional current transformers. “Nominal current” is a parameter of the power network, or transformer.

Figure 10 Job processing - Current

Please note, that MEMOBOX 300 smartsmartsmartsmart and MEMOBOX 808 are prepared for “smart” accessories. If original accessories are connected, the measuring range is automatically detected and entered into field “Input Range” and is used for the measurement afterwards. Only current ranges can be selected that are supported by the actual current sensor. Thus faulty programming is prevented. If no current sensor is detected a warning message is issued and all current and power values are set to zero, voltage measurements are possible. Save settings with OK.


Save the job data to a file with Save in section PC, specify path/name, file extension is .AUP for a P-job and *.AUQ for a Q-job.

Figure 11 Saving a job-file

MEMOBOX 300, MEMOBOX 300 smart and MEMOBOX 808 can handle two measurement jobs in sequence (MEMOBOX 800 cannot do this!): One is active and the data of the previous job are kept in memory for a while. The status of these jobs can be checked anytime via menu “MEMOBOX –Information

about MEMOBOX…” or by clicking the Info button in the tool bar. Attention: If there is a problem on the serial interface port or if there is no MEMOBOX connected CODAM BASIC/PLUS issues error messages:

Figure 12 Problem: Timeout on port COM1

and


Figure 13 Problem: No connection to a MEMOBOX

If it is not possible to connect to MEMOBOX make sure that the MEMOBOX is connected to the serial port selected in menu Settings General (COM 1..9) with the original cross-link interface cable. Use the original RS232 cable only. Make sure that the serial port is not blocked by other applications. For laptop PCs without serial port there are converters from USB to RS232 available on the PC market which establish a COM-port for communication with the MEMOBOX.


In a new MEMOBOX and after RESET (menu MEMOBOX-RESET) there are no jobs programmed:

Figure 14: MEMOBOX Information window There is no active job and no previous job. Select menu MEMOBOX Job processing measurement function P…. Modify the default settings or open a job which is stored in the MEMOBOX with button MEMOBOX Open. If the MEMOBOX is not licensed for this function there will be an error message.


The dialog box allows several modifications:

Figure 15: Job processing for function P

Click button General and define

• interval length • memory model for intervals • voltage input range • nominal voltage • response time for min/max values • connection type • ratio of voltage transformers (PTs) • thresholds for event detection • nominal current • ratio of current transformers (CTs)


Select General:

Figure 16: Job processing - General

Exit from the dialog box with OK.


3.4 Programming the MEMOBOX The job must be downloaded to MEMOBOX now. Important: If you have activated the tick mark “Automatic time synchronisation when saving a job to MEMOBOX” in menu Settings – General… the actual date/time of the PC is transferred to the MEMOBOX if a job is saved into the MEMOBOX (automatic time synchronisation). So please, check date/time of your PC!

Select Save in the section MEMOBOX. The data will be downloaded to MEMOBOX. The message

Figure 17: Confirmation

confirms correct saving of the job data in the box. Now the job is stored in the MEMOBOX and is activated automatically (continuous job) or if the start time is reached (time activated job) or by pressing the START/STOP button (switch activated job, LED is blinking). The MEMOBOX will remain in this status even if the power supply is removed between job programming and installation on site. As long as the MEMOBOX is not supplied no values are recorded (exception: MEMOBOX 808 with accumulator option).


3.5 Install the MEMOBOX on site Connect the MEMOBOX at the required measurement site. A “continuous job” will start immediately. A “switch activated job” must be started with the START/STOP button on MEMOBOX (LED is blinking, if the job is active the LED is on permanently, MEMOBOX 808: LED is blinking green). Within one minute the job can be cancelled by pressing the START/STOP button again, restart is possible afterwards). Important: Always terminate the switch activated job by pressing the START/STOP-button before you remove the voltage test leads. If not a voltage interruption will be recorded. A “time activated job” will start when start time is reached. The status of the job can be checked at any time, measured values can be uploaded anytime without interrupting the measurement procedure:

Figure 18: MEMOBOX - Information.

There is no previous job available, but job #1 is active.


3.6 Verify connections – ONLINE Mode

We can use the Online Test function to verify actual signals at the input terminals. Select desired parameters for online monitoring. Note: There must be job stored in the MEMOBOX. The parameter list depends on version P or Q! CODAM BASIC/PLUS will display these parameters versus time in a level time diagram

Figure 19: Online channel selection.

Nearly all parameters can be selected, Plt, min- and max-values are not available. For Pst we get 5s values, for all other parameters 200ms values are presented. There is a level time diagram on screen which is updated appr. in 1 sec intervals, depending on data transmission speed and PC-resources. Measurement data of appr. 17 minutes are kept in memory, older values are overwritten.


Figure 20: Dialog box for saving measurement data files.

Buttons for time and y-axis scaling have the same functionality as in level time diagram. The measuring period can be defined and also the scaling including groups.

Button scales the Y-axis according to extreme values. This is useful if the curve leaves the visible area of the diagram during test.

Button allows to add or delete additional parameters to/from the diagram.

Button activates the application oriented analysis. For details see chapter “Reference”.

Button presents recorded data in a table format, the table is not updated automatically.

Button toggles the auto scroll function (diagram is scrolled automatically if active)

Button stops the ONLINE recording for a required period, no data are added to the contents of diagram and table. Note: As long as the ONLINE test is active no communication to MEMOBOX is possible because the serial port is occupied.


The actual diagram can be printed out: Menu File – Print document… The online test function keeps a measurement history of appr. 17 min in memory.

3.7 Reading out the Measurement Data After completion of the measurement, or during the active job the measurement data stored in the MEMOBOX can be transferred to the PC – there is no interruption of recording measurement values! Connect the MEMOBOX to the serial port of your PC. Select menu MEMOBOX Read Results or click button

from tool bar:

Figure 21: Dialog box for saving measurement data files.

Specify name and path for the measurement data file. Note: The extension is .30P for measuring function P files and .30Q for measuring function Q files for MEMOBOX 300 and 800, .40P or .40Q for MEMOBOX 300 smart and MEMOBOX 808. Click on button SAVE. CODAM BASIC/PLUS transfers measurement data from MEMOBOX to the PC:


Figure 22: Download is in progress

Note: Retrieving the data will not interfere the measurement job – MEMOBOX will continuously record interval and event data during data transfer and the active job will not be aborted! MEMOBOX 800: the job will be terminated. If required we can program a new measuring job #2 while job #1 is active:

Figure 23: Job processing measuring function P

The data transfer can take several seconds depending on the preset Baud rate and amount of data.


Transfer the job to MEMOBOX with “MEMOBOX-Save” and wait for confirmation:

Figure 24: Confirmation

Job #1 is terminated and is shifted to “previous job” now. Measurement data are stored for some time until memory is required for the actual job. The job data can be checked by “Job processing measuring function P… Open previous”. Status info is now:

Figure 25: MEMOBOX - Information

“Previous “ job #1 is terminated but measurement data are still available, job #2 is active.


After some recording time we can retrieve data without any influence on the active job, or read out the data from the previous job. Intermediate usage of the online test is also possible to verify the signal levels and settings. Now we can program job #3 with modified parameters:


Sending the job to MEMOBOX will abort the active job #2 and delete measurement data of job #1:

Figure 27: Warning! Download data before activating new job.

We should retrieve the data before issuing the third job.


After transfer of job #3 the status is:


This advanced feature allows for continuous measurements without a gap. Note: MEMOBOX 800 can handle one job only. As the active job is in progress the memory is required for the active job data the new data will overwrite the existing data after some time. So it is advisable to retrieve the data of the previous job as soon as possible – best before saving the new job.


3.8 Analysing the Measurement Data Important: Make sure that the appropriate limit value file is selected! Use menu “Settings-General-Select Limit value file for analysis”:

Figure 29: Open limit level file

“En50160.gwd” is preset for limits defined in EN50160 “50160_61000-2-2.gwd” has limits for harmonics up to the 50th order according to IEC 61000-2-2 “Default GWD60Hz.gwd” is for applications in 60Hz systems. Note: MEMOBOX 800 cannot be used in 60 Hz systems. If we select another file all of the evaluations are done on the basis of this new file. Note: The new regulation EN50160 in version November 1999 is implemented. So there is a 95% and additionally a 100% of time limit value for voltage variations! After downloading the measurement data file a dialogue is opened to select the evaluation period different from the measurement period. This is very important if data were recorded for a long period and a report according to EN50160 is required (1 week period!):


Figure 30: Define evaluation period

The measurement data file is opened automatically and the Graphical Summary is displayed:

Figure 31: Graphical Summary

It provides a statistical analysis of the measured parameters. From this presentation we can see which measured variables exceed the limit values set up in limit value file (default: according to EN 50160) and which reserves are available. The measured values of each measurement row (voltage variations, interruptions, events, harmonics,


flicker) are classified according to quantity. In function P there are bars for THD of voltages, the bars “Flicker” represent long term flicker Plt. 95% of all measured values are less or equal to the 95%-value. The remaining 5% of measured values exceed this value but must be below the 100% limit value. Thus, the 95%-value provides a statistical information about the distribution of the measured values. See also chapter 4.5.1. Menu File - Print document will print this diagram on the actual system printer.


An analysis of these data can be done using menu Analysis – Table summary:

Figure 32: Analysis - Table summary

For analysis of individual harmonics, select Analysis - Cumulative Frequency or the appropriate icon. Harmonics and all other channels with a defined limit value are shown in the following representation:

Figure 33: Cumulative frequency - Scaling according to

limit value


From this representation it can be seen which harmonics on which phases exceed the limit value as per standard EN 50160 and/or which reserves are still available. Click on one or some bars and click on the level-time diagram icon in the symbol bar of Analysis - Cumulative frequency to open a level-time diagram:

Figure 34 Level-time diagram - 1 day

The level-time diagram indicates the values versus time and the correlation between individual parameters.


Menu Analysis – Level time diagram shows a diagram of values versus time:

Figure 35: Analysis – Level time diagram

It indicates the correlation between individual signals such as current peaks and voltage dips.

A level-time diagram can also be produced from menu Analysis – Application oriented analysis. It selects the relevant parameters according to the measurement task, indicates trends over time in a clearly arranged graphic with automatic or manual scaling.


Select Analysis –Application oriented analysis and select the application group. “Selected channels” will suggest relevant channels for a level time diagram:

Figure 36: Analysis – Application oriented analysis

Click OK to see the level time diagram:

Figure 37: Level time diagram for application oriented analysis


For version Q there are several other evaluations for detailed information about measured values (see chapter reference): Statistical Values:

Figure 38: Statistical values Most critical values:

Figure 39: Most critical values


All exceedings: Select an interesting parameter (e.g. voltage minimum) and you will get all limit exceedings arranged in a table:

Figure 40: Parameter selection for all exceedings

Figure 41: All exceedings

Codam Basic Plus Reference 47 EO 0401G Rev. B

4. Reference

This chapter contains detailed information about commands and dialog boxes for CODAM BASIC/PLUS.

4.1 Tool Bar Some commands can be selected directly from the tool bar. Just click on the appropriate icon. An additional tool bar appears for the level time diagram and events analysis. Symbols marked with “*” are only active when a measurement data file is open. The main symbol bar:

Information about measurement*

Open a measurement

Print directly*

Read results

Information about MEMOBOX

Online Test

Graphical summary*


Table summary*

Level time diagram*

Application oriented analysis*

Cumulative Frequency

Events, UNIPEDE DISDIP table*

Analyse phase L1 only

Info

Symbol bar for level time diagram:

X-axis: Entire measurement period

X-axis: 28 days

X-axis: 7 days

X-axis: 1 day

Move to begin of measurement

Previous time segment

Next time segment


Move to end of measurement

Enlarge time scale

Reduce time scale

Open X-axis scaling dialog box

Zoom undo

Left scaling selection is affected

Right scaling selection is affected

Scaling dialog for Y-axis

Show/hide limit values

Channel selection

Application-oriented channel selection

Measurement value list

Show energy (version P only)


Tool bar for ONLINE Test

X-axis: Entire measurement period

X-axis: 28 days

X-axis: 7 days

X-axis: 1 day

Move to begin of measurement


Next time segment

Move to end of measurement

Enlarge

Reduce

Open X-axis scaling dialog box

Zoom undo

Left scaling selection is affected

Right scaling selection is affected

Scaling dialog for Y-axis


Scale Y according to extreme value

Show/hide limit values

Channel selection

Application-oriented channel selection


Autoscroll on/off

Stop

Symbol bar for measurement value list

Print one page only

Print whole measurement period

...

Print 7 days … 1h, starting from the actual time

Select starting time and period

Show/hide interval status


Symbol bar cumulative frequency

Scaling according to limit value

Scaling according to nominal value

Class limits

Create level-time diagram with selected curves

Print list of harmonics

Symbol bar for events (UNIPEDE DISDIP table)

Events of all phases

Events phase L1 only



Data list of all events


Symbol bar for data list of all events

Events of all phases

Events L1

Events L2

Events L3

Events and interruptions

Events only

Short interruptions only

Long interruptions only

Print one page only

Print whole measurement period


4.2 Menu Commands All commands can be selected via the menu. Just click on the respective command. Level time diagram and Cumulative Frequency have a special menu bar. Note: Some additional menu items are available if a measurement file is open.

4.3 Menu File

4.3.1 Select a measurement

Opens a saved MEMOBOX measurement data file. Measurement data file form measurement function Q has the file extension *.30Q, *.30P from function P for MEMOBOX 300, *.80P and *.80Q for MEMOBOX 800, *.40P and *.40Q for MEMOBOX 300 smart and 808. You can load a measurement file from the hard disk or a disk drive and examine the Graphical summary, Table summary, Level time diagram, Application oriented analysis, statistics about Events, and export of selected data. Select the file in the dialog box Open measurement:

Figure 42: Dialog box for opening a measurement data file


Select the evaluation period. This is very important if data were recorded for a long period and a report according to EN50160 is required (1 week period!):


4.3.2 Close the measurement

In analysis mode only. Closes the actual measurement data file.

4.3.3 Select with voltage transformer

Changes the voltage transformer ratio for a stored measurement data file. Available only if no measurement data file is open.

Figure 44 Enter voltage transformer ratio

First, select the measurement data file to be processed, and then change the current transformer ratio. Note: This can be used for actual evaluation only but will not be saved with the measuring data file. It can be used if the ratio was not programmed correctly in the job.


4.3.4 Change current transformer

Changes the transformer ratios of the clip-on probes for a stored measurement data file.

Available if no measurement data file is open.

Select the measurement data file to be processed. Modify the settings for the “additional current transformer” (primary and secondary current):

Figure 45: Dialog box for changing the current transformer

The current range cannot be changed because it was used during the measurement. These settings are stored permanently in the measurement data file. Now open the required data file and the new settings can be used for the evaluation.


4.3.5 Change nominal apparent power

Changes the nominal apparent power for a saved measurement value file of function P.

Available only if no measurement value file is open.

Figure 46: Changing reference apparent power

Select menu FILE-Change nominal apparent power and then open the measurement value file to be processed, and change the nominal apparent power. We can use the measuring range (product of voltage and current range including CT and PT ratios) or the nominal range (product of nominal current and nominal voltage). Stot is total apparent power, total is for the three phases. The nominal apparent power is used for scaling the measured power values in the level time diagram.


4.3.6 Information about measurement

In analysis mode only. Displays information about the measurement data file.

Figure 47 Information about the measurement

Button Text opens a form for entering/modifying specific text for a finished measurement:

Figure 48: Measurement specific text

This text is stored to the measurement data file.


Button MEMOBOX shows all relevant information on firmware and hardware of the MEMOBOX which has done the measurement.

Figure 49: Information about MEMOBOX

Button Measurement gives statistical information about the measurement:

Figure 50: Information about measurement


You will get information about the measurement: Does the measurement comply with limits from

limit value file (default: default.gwd)? Did special events occur during the measurement

period? “Print” will print out a Measurement protocol.

4.3.6 Print document

Prints the active analysis (of active window). You can activate a window by clicking in the required window with the mouse or selecting it with Window "Name of Window".

4.3.7 Setup Printer Opens the standard dialog box for printer settings.

4.3.8 Export

In analysis mode only. Exports selected measurement data to a file in ASCII-Format.

Export options:

Figure 51: Export options


1. Exporting Interval data. These are the parameters which are stored at the end of each interval (normally every 10 minutes).

2. Exporting statistical measurement data. There are value classes for signalling voltages and frequency. (function Q only)

3. Exporting Events. This refers to voltage dips, voltage surges, and voltage interruptions.

4. VSE-Export. Special export format mainly used in Switzerland

Each export file can contain measurement data from only one of these types. If you want to export measurement data of all types, you have to create different files. Open a measurement data file. Menu File – Export:

Figure 52: Selecting export format

Select the output format. For later data processing with MS Excel the format shown above is suitable.


Suppress all lines in the header of the file with the appropriate selection, this makes post-processing in MS EXCEL® easier (CSV-format, comma separated values). Confirm with OK. For interval data select the measurement rows which are to be exported. If items are invisible there are no related measurement data.

Figure 53: Select interval-type measurement rows for export

For available parameters see chapter „Level time diagram“ page 109.


Figure 54 Selecting statistic-type measurement data for export (version Q only)

Click OK to initiate the export. The filename is created automatically: Name of actual measurement data file with extension “.ASC”. For exporting events there is a special window:

Figure 55: Export events

There is no selection for channels. “OK” passes to the next dialogue. Except for statistics the following dialog is opened. Select the desired export period and file name and confirm with OK.


Figure 56 Selecting the measurement period for export

Figure 57: Export – set file name

Example for exported interval data:

Figure 58: Export file (*.ASC)

Please, note that the text in line 3 is the text from the job definition file line number 6. So information regarding the measurement campaign can be exported too.


On request line numbers can be created. The most important data like voltage and current measuring range, transformer ratio, type, serial number, and designation of the MEMOBOX are exported. The export selection ”table with spaces“ produces clearly formatted columns. As a decimal delimiter ” . “ or “ , “ can be chosen. Importing into MS EXCEL® is very simple. Open the respective ASC-File with Open file. The import wizard will automatically import and format the measurement data. Example for exported statistics file

Figure 59: Frequency statistics in MS EXCEL®

Number of measured values

There are 42 classes fort he 10s frequency average values. For ripple control signals and interharmonics classes between 1% and 11% of Un for each phase and each frequency are


4.3.9 Export (VSE format)

Exports the measurement data file in a special format used in Switzerland for the VSE statistics.

Figure 60 Selection of the measurement parameters and

the transformer power

Figure 61 VSE export - Selecting the harmonics to be

exported. Do not change any of the settings if you are performing a standard export.


Figure 62 VSE export - Selecting the file name

4.3.10 Export

In analysis mode only. Check the settings for the export before using this command! (Menu settings –export). Exports selected measurement data to a file in ASCII-Format.

There are two export options: 1. Exporting interval data. These are the parameters

which are stored at the end of each interval (normally every 10 minutes).

2. Exporting events. This refers to voltage dips, voltage surges, and voltage interruptions.

This file can be opened in other applications, e.g. MS Excel, Winword.

4.3.11 <1..9 File name>

Opens the specified measurement data file. You can directly select one of the nine measurement files you last worked on. After opening, the Graphical Summary will be presented automatically.

4.3.12 Close, Exit Closes a measurement evaluation in analysis mode or exits CODAM BASIC/PLUS.


4.4 Menu MEMOBOX

This menu contains all the commands relating to the programming of and communication with the MEMOBOX .

Note: PERMLINK software allows to program the MEMOBOX via a modem connection and to read out data via modem.

4.4.1 Read results Transfer measurement data from MEMOBOX to PC.

Enter a filename for data storage:

Figure 63: Dialog box for saving a measurement data file.

Select the required path and file name. Use OK to start the actual download. The download can take some minutes. In order to minimise download time set the Baud rate to 115200 in menu Settings - General.


Figure 64 : Download is in progress

After downloading the measurement data file a dialogue is opened to select the evaluation period different from the measurement period. This is very important if data were recorded for a long period and a report according to EN50160 is required (1 week period!):


Data are saved in a measurement data file with an extension: MEMOBOX 800: *.80S, *.80P, or *.80Q MEMOBOX 300: *.30P or *.30Q MEMOBOX 300 smart, 808: *.40P or *.40Q


4.4.2 Read previous measurement data

Same function as “read results” but downloads measurement data of the previous job which are still stored in the MEMOBOX.

4.4.3 Job processing measurement function P, Q

Select Job processing measurement function P or Q to define the parameters of a new job.

Specify new settings: Define a new job, or open a job out of the MEMOBOX, from a file or from a predefined job template. Save the job to the MEMOBOX or to hard disk.

Important! Depending on the measurement functions, not all settings are available (for example: Q-function does not have Power).


Job Processing

Figure 66: Job processing summary window

Open a job and modify required settings.

Print Print a protocol of actual job data.

Close Exits from the dialog box.

Edit

Edit-General (P, Q) Select input range, memory model for events, thresholds and response time for events, and enter measurement-specific text.

Edit-Measurement period (P, Q) Define interval length, memory model for interval data, Begin/end time of the measurement period.


Edit-Interharmonics (Q) Enter measurement method, frequency of the interharmonics to be measured, and the channel-specific text. This is also valid for the signalling voltages to be measured.

Edit-Current (P, Q) Select settings for the actual current transformers (nominal current, ratio).

Edit-Power (P) Enter nominal apparent power and response time for maximum values (1 sec or 1 min).

MEMOBOX

MEOBOX-Save Writes the current job data into the MEMOBOX. Stored jobs and all stored measurement data will be erased. Remark: the actual PC-time is transferred to the MEMOBOX (automatic time synchronisation). So please, check date/time of your PC!

MEMOBOX-Open Gets job data stored in the MEMOBOX. The data can be modified in a dialog box.

MEMOOBX-Open previous Gets data of the previous job still stored in the MEMOBOX. The data can be modified in a dialog box.

PC

PC-Open Loads a saved job data file which can be modified.

PC-Save Saves the actual parameters under the same file name. The data extension of a job-file is *.AUP, or *.AUQ corresponding to functions P or Q.


PC-Save as Saves the selected parameters. The file name can be chosen. The data extension of a job-file is *.AUP, or *.AUQ corresponding to functions P or Q

Edit- Job Processing - General (P, Q)

Figure 67 Job Processing - General

Measurement-specific text Enter text to describe the measurement, up to 40 characters per line. This text is saved with measurement data, and transferred back to the PC together with the measured values. The first line appears below the title on each print-out of the analysis. The text of line #6 is transferred to ASCII-export files.


Voltage

Minimum/Maximum Value Select the response time for min/max values. Settings: 0.5, 1 period, 200ms, 1, 3, 5 seconds. 0.5 periods means that a voltage dip of 0.5 mains periods (= 10ms) will be recorded as U min for this interval. Nominal voltage Enter the nominal voltage of the mains system (normally 230V in P-N or 400V in P-P connection) or the voltage at the primary side of the voltage transformer (e.g. 16.000V).

Input Range MEMOBOX

Figure 68 Input range of the MEMOBOX

Define connection mode phase-neutral (wye, P-N) or phase-phase (delta, P-P) and the appropriate nominal voltage. For 230 V systems select 230V P-N. P-P is used for measurements with voltage transformers in medium voltage networks for three phase systems without neutral conductor (2-W-meter method, Aron circuit is always use with this setting). Note: For nominal voltage the P-P voltage has to be entered (i. e. 400V for 230V systems).


For medium voltage networks with voltage transformers the option „Voltage transformer“ can be used to enter the VT ratio:

Figure 69 Input range - medium voltage networks

Events Enter the threshold level for the recording of events. If the voltage is above or below the specified level, an event will be recorded.

Positive Tolerance for triggering a recording Positive tolerance value for recording of events.

Negative Tolerance for triggering a recording Negative tolerance value for recording of events. Note: Both values are related to nominal voltage and must be >5%.

Memory model for event recording A portion of the memory is reserved for recording events. Select between linear or circular memory model. Data can be transferred to the PC at any time, the measuring job will not be terminated. This is very useful for fix installed applications, data can be retrieved via modem connection remotely. For circular memory model, the last event values will always be held in memory. So the device can measure over an unlimited period of time. In the linear memory model the device can measure up to a maximum number of events depending on amount of internal memory. If the memory is full no additional values will be stored.


The number of events that can be recorded is independent of the interval values because they are stored in an extra portion of the memory.

OK Returns to job processing, changes will be saved.

Cancel Returns job processing without saving the former settings are kept.

Job Processing - Measurement Period (P,Q)

Figure 70 Dialog box for Job processing - Measurement

period


Interval Interval length Specify the length of averaging interval. At the end of this period the MEMOBOX stores the mean values into internal memory. The interval length of 5s, 10s, 30s, 1, 5, 10, 15, 30, 60 min. determines the maximum recording time. The standard interval length is 10 minutes.

Note: If a measurement segment has been defined, the interval length can not be changed.

The maximum period for continuous measurements is calculated depending on the selected interval length.

Memory model for interval recording For circular memory model, the latest interval data will always be held in memory. So the device can measure over an unlimited period of time. Data can be transferred to the PC at any time, the measuring job will not be terminated. This is very useful for fix installed applications, data can be retrieved via modem connection remotely. In the linear memory model the device can measure up to a maximum number of intervals depending on amount of internal memory. If the memory is full no additional values will be stored. The number of recordable intervals is independent of the recorded events because they are stored in an extra portion of the memory.

Maximum continuous measurement duration The maximum continuous measurement duration is calculated. It depends on the selected interval length and available memory.


Measurement period: Continuous job: The job starts immediately after saving it to the MEMOBOX Switch-activated job: Job is activated by push button START/STOP on the MEMOBOX , input of date/time is deactivated. Note: Pressing the START/STOP-button within one minute cancels the activated time job. Pressing START again restarts the job anew. Time activated job: Enter measurement begin in field Begin day/time. A time activated job should always be programmed for measurements according to EN 50160. The minutes will be rounded off depending on the interval length entered. If the interval length is 60 minutes, minutes cannot be defined. Enter measurement end in box End day/time. 1008 intervals are pre-set (one week using 10 min intervals, for EN50160). For optimal memory usage other values can be entered here. This field is deactivated if "daily" is selected as the day of the week for the start of a measurement segment.

Set Define quickly a time job with convenient start times (e.g., starting at the beginning at the next full hour).

Measurement Segments By defining measurement segments, you can signifi-cantly increase the measurement duration because the MEMOBOX records relevant values only. Measurement segments repeated daily and/or weekly can be defined. Daily measurement segments are designated as "daily". Measurement segments repeated weekly are indicated by the days of the week. You can also define measurement segments which facilitate measured data storage over the weekend by setting one measurement segment from Saturday to Monday. The interval length must be more than 1 minute.


One or 2 measurement segments can be defined. Overlapping time periods are not allowed.

Note: If a measurement segment is defined, the interval length can not be altered.

Start day/time Here you can enter the start time for the appropriate day. The minutes will be rounded off depending on the interval length entered. If the interval length is 60 minutes, minutes cannot be defined.

End day/time Here the end time can be entered for the appropriate day. This field is deactivated if "daily" is selected as the day of the week for the start of a measurement segment.

Add Adds the entered measurement segment to the list.

Delete Deletes the measurement segment marked in the list from the list. If no entry in the list is marked, all entries will be removed from the list.

OK Returns to job processing. Entries and changes will be saved.

Cancel Returns to job processing. Entries and changes will not be saved. The former settings remain in the memory.


Job Processing - Interharmonics (Q only)

Figure 71 Dialog box Job processing - Interharmonic.

Up to 5 interharmonic frequencies can be selected.

Important Interval data and statistical data are recorded for each interharmonic. Classes between 1% and 11% of Un are created for the 3s-Max-values for each phase and each frequency. The statistical data are used for the analysis of signalling voltages (ripple control signals) according to EN 50160.

Measurement principle Specify measurement method: 200ms maximum or minimum value, 3-second maximum value, or mean value during the interval period. Thus precise monitoring of ripple control signal levels can be done.

Frequency measurement Absolute: measurement is based on exactly this frequency.


Relative: measurement is based on a frequency in relation to the fundamental of the input signal.

Frequency Specify the frequency to be recorded for a particular channel with a resolution of 0.5 Hz. However, the internal resolution is 5 Hz. Intermediate values are calculated by means of a correction curve. Only one value can be entered per 5 Hz band.

Channel-specific text Enter up to 30 characters as a description for the channel.

Add Adds the selected frequency to the "Programmed channels" list.

Delete Deletes the marked channel from the "Programmed channels" list.

OK Returns to job processing. Entries will be saved.

Cancel Returns to job processing. Entries will not be saved. The former settings will remain in the memory. Hint: For each interharmonic frequency added to the channels list a statistic based on 3s max values will be created independent of measuring method chosen. Additionally there is a statistic for mains frequency. Statistics can be accessed after more than 24 hours of measuring period, after end of measuring campaign or if the job is terminated by push button START/STOP (MEMOBOX 800: position “0”). These statistics can be exported to an ASCII file and can be evaluated with a text editor or with MS EXCEL®. Example: If we define 185 Hz, 385 Hz and 1050 Hz four statistics will be created.


Job Processing - Current (P, Q)

Figure 72 Dialog box Job processing - Current

Define the current transformers and the current sensors used with respect to the nominal current and the measurement principle. MEMOBOX 300 smartsmartsmartsmart and MEMOBOX 808 are prepared for “smart“ accessories: If an original accessory (a current clamp set or a LEM~flex set) is connected the field “input range“ shows immediately the measuring range. This is used automatically for the measurement. Only values that are supported by the sensor can be selected: e.g. for a 1A/10A set only 1A or 10A can be selected manually. If no accessory can be detected a warning message is issued and all current and power values are set to zero.

Maximum value Set the response time for the maximum values. 0.5 periods means that a current peak of 0.5 mains periods (= 10ms) will be detected. 0.5 periods and 5 seconds are possible.


Nominal current Enter the nominal current of the line to be measured. The nominal current is used as scaling factor in Analysis - Cumulative frequency - Scaling according to nominal value.

Input range Select one the supported measuring ranges for the current clamps or LEM~flexes for L1, L2, L3.

Additional current transformers Check this box for additional current transformers (clamps, e.g. in medium voltage networks).

Primary and secondary current Enter the primary and the secondary current of the additional current transformer. Normally primary current and nominal current are identical, the secondary current is either 1 or 5 A.

Special transformer (P only) A maximum of +9° phase shift can be corrected by entering –9°. For an inductive (lagging) error of 9° the measurement results are corrected with –9°. Number of CTs (current transformers, sensors) If a P-N configuration is selected for voltages (e.g. 230V P-N) always 3 CTs are required. 2-W-meter (Aron) method is not possible. If a phase-phase configuration is chosen for voltages (e.g. 400V P-P) the 2-W-meter (Aron circuit) is used. There is an additional selection whether 2 or 3 CTs are used. If “2” is selected, the current of phase L2 (B) is not measured but calculated. If “3” is selected the phase currents IL1, IL2, IL3 (A, B,C) are measured. Thus Power Quality tests can be performed in 3-phase-3-wire systems. In 2-Watt-meter method powers of phase L2 (B) are always zero, the power values of L1 (A) and L3 (C) are calculated values that do not have a practical meaning, they should not be evaluated. The total power values (Ptot, Stot, Qtot) are correct for the 3-phase system.


Neutral conductor Activate/deactivate the checkbox “measure/display” for recording of neutral conductor current, specify input range. The settings are similar to phase currents.

OK Returns to job processing. Entries will be saved.

Cancel Returns to job processing. Entries will not be saved. The former settings will remain in the memory. The current transformer settings can be modified even if the measurement has been completed.

Job processing - Power (version P only)

Figure 73 Dialog box Job processing - Power

Min/Max value Set the response time for the minimum and the maximum value of the power quantities. Select between 1 second or 1 minute (1 minute can be chosen only if the measurement interval is ≥ 1 minute).


Measurement range Click on this button, if you want to select the voltage and current measurement range for calculating the nominal apparent power.

Nominal range Click on this button, if you want to select the nominal value of the voltage (e.g., 230V) for calculating the nominal apparent power. You can also enter the desired value directly. The nominal apparent power affects the scaling of the power quantities P, and Q in the level-time diagram. Note: You have to click on one of those buttons to activate the suggested values.

4.4.4 Job templates

Define an existing job-file as a default job-file for each measurement function. All settings, e.g., ripple control signals or measurement-specific text, are included in the new job, except the start and end times of measurements with respect to time jobs.

Figure 74 Selecting job templates

Select the desired file. If initial values have been marked, default values are used for a new job.

4.4.5 Set date/time Set the date and time of the MEMOBOX .

To ensure consistent measurement data the setting of data and time is not possible if a measurement job is active. If a job is active there is a dialogue opened


which allows for changing date/time but measurement data will be deleted then! Mark a field and enter the number directly or select the date from calendar, enter time directly or click on the selection arrows. “Use current PC time” and OK writes the PC time into the MEMOBOX to synchronise several MEMOBOXes.

Figure 75: Setting date and time of MEMOBOX

Important: If you have activated the tick mark “Automatic time synchronisation when saving a job to MEMOBOX” in menu Settings – General… the actual date/time of the PC is transferred to the MEMOBOX if a job is saved into the MEMOBOX (automatic time synchronisation). So please, check date/time of your PC!


4.4.6 Set designation

Assign a name with a maximum of 20 characters to the MEMOBOX . This name will be stored in the MEMOBOX . It is displayed together with information about the MEMOBOX , and it is displayed and printed with information about the measurement value file.

Hint: If it is not possible to enter 20 characters delete all spaces at the right side of the cursor. This command can also be used to terminate a measuring job.

Figure 76: Dialog box for setting a designation

4.4.7 Reset RESET reinstalls the firmware of a MEMOBOX

Remark: This function is a service tool and should not be used during normal operation of the MEMOBOX. In case there are serious problems (e.g. no RS232 communication possible to MEMOBOX) RESET allows to transfer the firmware the MEMOBOX. RESET can also be used to update the internal firmware of a MEMOBOX 300, MEMOBOX 300 smart, or MEMOBOX 808 using a newly installed CODAM BASIC/ PLUS software version. It cannot be used for the MEMOBOX 800, because the hardware does not support this procedure. To do this use the CODAM 800 software which is also included on the CD-ROM shipped with the MEMOBOX.


Procedure: Open the menu MEMOBOX-Reset and follow the instructions on screen:

Figure 77: Menu MEMOBOX -Reset

In “Step 1” you have to turn off the power supply of the MEMOBOX (remove supply cables, for MEMOBOX 808 with accu-option: press button START once). Then click OK.

Figure 78: RESET – Step 1

During “Step 2” CODAM prepares the serial port for the firmware download mode.


Figure 79: RESET – Steps 2 and 3

In “Step 3” you have to define the type of the connected MEMOBOX. If the MEMOBOX holds valid device data the field MEMOBOX type shows as a default value the actual type of the box – this has been read out before starting the RESET. Normally even if the firmware is corrupt the MEMOBOX will still keep these data in memory. Be careful, because the type defines which firmware will be transferred. If you select an improper type the results are unpredictable. If the box does not have the correct type you have to select one of available types. The type can be derived from number of measurement channels:

Channels MEMOBOX 300 type

MEMOBOX 300 smart type

1xU 300 400 1xU 1xI 303 403

3xU 301 401 3xU 3xI 302 404 3xU 4xI 304 404

MEMOBOX 808: the type is always “408”.

The next field defines the nominal mains frequency. It is strongly recommended not to change to another frequency, because the MEMOBOX is calibrated for 50Hz or 60Hz by the manufacturer. Use the nominal frequency the MEMOBOX was calibrated for. It can be read off from the type plate.


Click OK to start the firmware transfer:


If all files are transferred successfully the MEMOBOX is operative again. Click OK to start normal operation:


Remark: Normally data of an active job, measurement data of a previous job and measurement data of an active job are kept in the MEMOBOX, just the firmware has been replaced by RESET.

Warning: Make sure that the data transfer is not interrupted during this process! This could cause problems and the RESET has to be repeated from the beginning.


4.4.8 New measurement function

For MEMOBOX 800 and MEMOBOX 808 only: they can have licenses for P and Q function, so P or Q can be retrofitted this way.

For low cost versions of MEMOBOX 300 and 300 smart a license for CODAM PLUS can be ordered.

Creates an order form for a new licence. The required hardware information is directly read out from the MEMOBOX 800, 808. Please, verify that the correct MEMOBOX has been connected.

Figure 82 Dialog box - Information for new licence

Enter customer specific information and click OK. The MEMOBOX-specific data will be directly read out and displayed. This information will be included in the license file you will get in return. So the license is bound to one MEMOBOX and one user.


Figure 83 : Dialog box – New measurement functions

Enter the designation for the new measurement function (P or Q, one character per function), that is to be part of the license for the listed MEMOBOX.

Print the form if desired and save the information in a file on a diskette by clicking on “Create file,…”. Send the form or the diskette to your local sales representative. It is also possible to send the file as an email attachment. Please ask your local sales representative. Hint: If we do not enter a letter for new measurement function we can produce a disk with the actual license information. This can be kept as safe copy.


4.4.9 Update licence

Loads new licence information into the MEMOBOX which is stored in the file <Serial number>.liz.

A MEMOBOX can only perform those measurement functions for which it is licensed.

Figure 84: Dialog box for updating the licence

To update click on Select and enter the path where the license file is located. Confirming with OK transfers the new license data to the MEMOBOX .

Important: Each MEMOBOX has its own licence. The licence information is stored in the MEMOBOX . Please, verify that the number of the licence file matches the serial number of the MEMOBOX . CODAM BASIC/PLUS can be used on several PCs.


4.4.10 MEMOBOX Information

Current status of the MEMOBOX , gives information about the hardware and software version.

Figure 85 Dialog box: Status of the MEMOBOX .

There are statements regarding the stored measurement values – area Job: Status - gives information about the job: Available messages:

“No job is programmed” “Job is active (between segments)” “Job is active, previous job is available” “Job is completed”

Number of intervals Number of statistics Number of events (completed and uncompleted,

i.e. those that are being recorded at the status is read out)


Additionally there is information about the MEMOBOX designation MEMOBOX date/time Hardware type of the MEMOBOX Serial number Measurement function licensed for this MEMOBOX

(P or Q) The field “Current sensor type” shows the type of

the connected accessory: Type 0: no accessory detected Type 1, 3: LEM~flex 3 x 3000A Type 2, 4: LEM~flex 4 x 3000A Type 5: 3-phase current clamp set Type 6: current clamp set 3-phase + N Type 7: 1-phase clamp set

The field “maximum clamp current” shows the nominal measuring range of the actual accessory

Details displays type of analogue and digital board, version of Boot-, CPU and DSP software:

Figure 86 : Details of MEMOBOX

4.4.11 Online Data from MEMOBOX

Starts the ONLINE function. Several parameters depending on the stored measuring job can be selected and are monitored in a level-time diagram with a measured values table online. Details see chapter „3.6 Verify connections –ONLINE mode“ page 31.


4.5 Menu Analysis

Analysing MEMOBOX measurements.

4.5.1 Graphical Summary

This analysis appears as the default analysis after a measurement file has been opened.

Figure 87: Graphical summary

Graphical representation of a statistical analysis of all measured parameters for the total measuring period. We can see which values exceed the limit values as per standard EN 50160 and/or which reserves are available. The measured values of each measurement row (voltage variation, interruptions, harmonics (i.e. THD), flicker) are classified according to quantity. 95% of all measured values are below the 95% value. The remaining 5% of measured values exceed this value but have to be below the 100% limit value (for slow voltage variations and frequency). The 95%-value provides a statistical information about the distribution of the measured values. Beneath the limit value line the file name of the actual limit value file can be seen. A stacked bar chart is used for the presentation.


95% value

maximum value

5% of all measuring values are between the

95% value and the maximum value

95% of all measuring values are between the

95% value and zero

Figure 88: Stacked bar chart

One bar is drawn for each of the three phases for each measurement parameter. The measured maximum value and 95%-value are scaled with the corresponding limit value. The limit value line is superimposed so that it can be determined whether the limit value has been exceeded - the 95%-value

(red bar) is above the limit value line the limit value has not been exceeded (the bar is

always below the limit value line). there are any reserves available.

Note: In the EN50160 regulation there is a 95% limit value for all measured parameters: 95% of all measured values during one week must be below this 95% limit value. For some parameters (frequency and slow voltage variations) there is a 100% limit value: 100% of all measured values must be below this 100% limit value. There are THD U bars for THD of voltages of each phase, the bars “Flicker” show the long term values Plt.


Stacked bar charts from measured values

Standard

95%-value

max. Level

Number of measured values 100% 95%

Limit value 6% UN

Measured values the 5th harmonic

70%

The curve must not be above the

hatched area

standard- exceeded

Figure 89: Continuous curve for the measurement row of the

5th harmonic

The values measured during one week are put in increasing order together with the limit value line. Example: The limit for the 5th harmonic is 6% of VN. The sorted row of values reaches the limit value with 70% of the measured values. Only 70% of all measured values are below the limit. The 95%-value (i.e., the maximum level of 95% of all measured values) is above the limit value line - the standard is not met. Maximum value and 95%-value are benchmark figures for the stacked bar chart.

It can easily be seen which measured values exceed the limits defined in the limit level file and which reserves are still available. Note: For voltage variations there are two independent bars: For the red (95%) bar the limit value line represents the 95% limit value (e.g. –10% as per EN50160). For the blue (MAX) bar the limit line represents the 100% limit value (e.g. –15% as per EN50160). The red bar is in front of the blue one. The standard is met if red and blue bar are always below the limit value line.

This diagram can be printed with Print document.


4.5.2 Table summary

Shows the values represented in the "Graphical summary" analysis in table form.

Figure 90 Analysis summary in table form

In this table the numerical values for all parameters represented in the graphical summary can be seen (1st column). These are the limit value (3rd column), the maximum value (4th column) and the 95%-value (5th column).

Voltage Variations The column Maximum value displays the maximum and minimum deviation in percent in relation to the nominal voltage. In the 95%-value column, the upper and lower limit indicate that 95% of all measurement values are between the positive and the negative value.


Note The absolute value of the voltage deviation is used to calculate the 95% value. However, the information about the sign is lost. Therefore, there is only one 95%-value. With symmetrical limit values (e.g., +/- 10%), the 95%-value is given under Maximum, if the maximum interval value is not below the 95%-value. Otherwise the maximum interval value is given. The 95%-value is given under Minimum, if the minimum is not above the 95%-value. Otherwise the minimum interval value is given. With unsymmetrical limit values (e.g., +6 / - 10%), the individual measurement values are scaled considering the limit values, and the 95%-value is recalculated based on the scaled values. This takes into account that, e.g., 103% Un have a greater impact than 97% Un, if the limit value is +6% / -10%.

Interruptions The number of interruptions per phase is given, there is no 95%-value.

Events (voltage dips and surges) The number per phase is given, there is no 95%-value.

Harmonics Amplitude of the harmonic, interharmonic, or THD which has the highest 95%-value, i.e., that is closest to the limit value, or exceeds it the most is given for each phase. If the most critical result is the same for all three phases, only one column is displayed, otherwise two or three will be displayed. Only those harmonics/interharmonics, or THD can be analysed that have a defined limit value, and that have actually been measured. The EN 50160 only defines limit values up to the 25th harmonic! Use the cumulative frequency representation for more detailed examination. Select a limit value file, in which all harmonics are defined, e.g., 50160_61000-2-2.gwd.


Flicker The maximum values and the 95%-values are given for each phase.

Unbalance The maximum value and the 95%-value are given.

Signalling voltages The signalling voltage of each phase is given that has the most critical 95%-value. If the most critical signalling voltage is the same for all three phases, only one column is displayed, otherwise two or three will be displayed. Only those signalling voltages can be analysed that have a defined limit value in the actual limit value level file.

Frequency The maximum value column shows the maximum and minimum deviation in percent as related to the base frequency. To calculate the 95%-value the absolute value of the frequency deviation is used. The information about the mathematical sign is lost. So there is only one 95%-value. With symmetrically limited values (e.g. +/- 1%), the maximum indicates the 95%-value with a positive sign, and the minimum indicates the same 95%-value with a negative sign. See also the example regarding voltage variations. With respect to the maximum value, the maximum and minimum is given in percent as related to the frequency.


4.5.3 Cumulative frequency (function Q only)

The graphical analysis of the cumulative frequency is a well-arranged statistical form of representation for the analysis of harmonics. The stacked bar chart principle is the same as in the ”Graphical summary“ analysis.

Select the command Analysis-Cumulative frequency.

Figure 91 Cumulative frequency (scaling according to limit

value, limit value level file is EN50160.gwd)

For the analysis of the harmonics select "Scaling according to limit value". This is also the selected standard scaling. The user can easily see which harmonics exceed the permissible limit value and how many reserves are available. Only to the first 25 harmonics in the limit value level file EN50160.GWD is assigned a limit value. If you want to examine the harmonics 25-40, select the limit value level file 50160_1000-2-2.gwd. This selection can be made in the menu General Settings.


The order of a harmonic is shown under the associated numeric values when you place the mouse pointer onto the respective bar.

Figure 92 Cumulative frequency (with reference to

nominal value)

A second possibility is scaling according to the nominal value. Using this type of representation, the individual harmonics are shown in their effective amplitude. This type of representation is particularly suited for analysing the load current if you specify the nominal value of the cable or the transformer as the nominal value of currents. All three phase loads can be seen at a glance.

Creation of a level-time diagram It is possible to directly view the level-time diagram for each measured variable, i.e., its harmonics 1-40, 5 interharmonics, THD, voltage, Flicker Pst, unbalance, frequency, and current values. Click on the respective bar(s) and then click the level-time diagram icon on symbol bar of the cumulative frequency.


Symbol bar Cumulative frequency

Scaling Limit value

Scales the diagram according to the selected limit value level file

Scaling Nominal value

Scales according to the nominal value

Scaling Class limits

Selects the class limits

Analysis - Level-time diagram

Creates a level-time diagram with selected curves

Print File list

Prints a list with all harmonics

Scaling to Limit values - The bars of the diagram are scaled to the limits:

Figure 93 Cumulative frequency – Scaling to limit values

We can see the parameter and the limit, for each phase there is an extra line with minimum/maximum value with date/time and the 5% and the 95% value.


Scaling to nominal values - Note: Fundamental is scaled to 100% of Un, the harmonics are scaled to 10% of Un. The harmonics are normally very small in relation to fo, so we can have 1 fo and harmonics in one diagram with perfect resolution.

Figure 94 Cumulative frequency – Scaling to nominal values

Define class limits

Figure 95 Cumulative frequency - Class limits

Define the class limits, 95% and 5% are standard. If we select 0% as the lower class limit, the green bars will disappear. Button “Standard” resets to 5% and 95%. 5% value: 5% of all measured values are below this value.

Level time diagram - Mark important bars in the cumulative frequency diagram. Click on this icon to open directly a level time diagram for the selected parameters.


Print a list of harmonics - CODAM prints a table with harmonics 1.fo up to 40.fo, THD U, voltage (min, mean, max), flicker Pst, frequency, current (mean, max, peak), crest factor CF. For all parameters we will get nominal value, 5% value, 95% value, maximum, unit, date/time. There is one table for each phase.

Figure 96 Cumulative frequency – Scaling to limit values

4.5.4 Level-time diagram: Channel selection options

There are three options for selecting the measurement rows for the diagram.

1. Application-oriented selection

2. Manual selection

3. Selection within the cumulative frequency representation


4.5.4.1 Application oriented analysis

Selects predefined measured variable combinations, and represents the values in the level time diagram using significant scaling. Select Analysis – Application oriented analysis. The following dialog box appears:

Figure 97: Application-oriented analysis,

selection of application

Select the suitable entry from application group. The right-hand window suggests channels for selection. There are single-phase, three-phase and mixed-phase analyses.

Recommendation Check the different options using the demo measurements, or one of your own measurements. This will quickly give you an impression of the predefined analyses.


Click on OK. The level time diagram appears in the desired format and selected channels. Info will provide you with an information text for every predefined analysis. The set-up is shown below. It explains why the selected channels are relevant for the analysis. The command Copy copies the entire contents onto the clipboard. You can use these explanations in your measurement documentation.

Flicker, voltage and current, single phase analysis ===================================================== Application: Analysis for the flicker level by means of voltage and current Channels: Channel 1: Umean Control of mean value. How much does the voltage fluctuate? Channel 2: Umax Maximum values. Difference to mean value. Channel 3: Umin Minimum values. Difference to mean value. Big difference: Dips upon turning on = flicker. Channel 4: Imean How much does the mean value vary? Channel 5: Imax Maximum values. Difference to mean value. High maximum values = big voltage dips. Channel 6: Flicker Pst How high is the flicker level? Note: Please also observe those voltage dips recorded as events!

Figure 98: Application-oriented analysis - Info file

This channel selection can be called up from any level time diagram. Simply click on the icon in the symbol bar of the respective diagram.


4.5.4.2 Level time diagram – manual channel selection

The level time diagram shows important correlations and the course of the measured variables.

Select desired channels for presentation:

Figure 99: Manual channel selection for level time diagram

Select the measured values and the phases. All

means phase L1, L2, and L3. Click on The desired measurement rows are selected. Double-clicking on a measured variable has the same effect. The selected measurement rows appear in the selection window, up to 9 are possible. Replace replaces a measurement row highlighted in the selection window with a newly selected measurement row.

De-select with for one, or for all. Click OK.


Available parameters for version P: Voltage Current Active

power P Reactive power Q

Apparent power S

U mean I mean P mean Q mean S mean PF

U min I max P min Q min S min PF total

U min act I max act P max Q max S max tan

U max I h1 |P| mean Q total mean S total mean tan total

U max act THD I mean |P| min Q total min S total min Energy

U act Imax THD I max |P| max Q total max S total max Energy total

U h1 I mean N P total mean

THD U mean I max N P total min

THD U max I h1 N P total max

Flicker Pst THD I mean N |P total| mean

Flicker Plt THD I max N |P total| min

I act Umax |P total| max

I act Umin

Available parameters for version Q: Voltage Current Harmonics Interharmonics

U mean I mean 1xfo …. 200 ms max Unbalance

U min I max 40 x fo 200 ms min Frequency

U min act I max act 3 s max

U max I peak mean

U max act CF

U act Imax I mean N

Flicker Pst I max N

Flicker Plt I peak N

of interharmonics

defined

in the job

THD U mean CF N

I act Umax

I act Umin

The parameters are available for each specific phase (L1, L2, L3), except the “total” parameters which are for the whole 3-phase power system. For details about symbols and abbreviations see appendix.


Now we can set the scaling of the individual curves:

Figure 100: Scaling of the Y-axis

There are 3 scaling options:

1. According to measurement range Scales according to the measurement range of each individual measured variable.

2. According to the extreme value All channels are scaled according to the minimum and maximum value. They are always visible in the diagram (the maximum value is scaled to the middle of the diagram). Warning: Each individual measurement row can have its own scaling. Especially when indicating the voltage’s minimum, maximum, and mean values, this can look unfamiliar, evaluation is complex then. So we recommend to “group” similar parameters, to use identical scales.


3. Manual Enter the 0% and the 100%-scaling value for each measurement row. The actual minimum and maximum values of each measurement row are given. Please also select the channels to be used for labelling the value-axes.

Grouped If this field is activated, related measurement rows, e.g., voltage (1), current (2), and flicker (3), are scaled in the same manner. The advantages are obvious: Manual entry of the manual scaling values is only

required once, which substantially facilitates the scaling process.

Reading errors due to different scales are prevented.

Click OK and the level time diagram will appear in the desired format:


Example:

Figure 101: Level-time diagram

Right side, left side scale

Simultaneous pre-sentation of up to 9 measured values with free colour selection

X-axis with a resolution of 1 minute up to 28 days and application oriented subdivisions

Pre-defined periods and intelligent scroll function

Individual scaling of all measured values provides a clear understanding of correlation

Zoom function for details

Legend for each measured value


A channel selection can be called up from every level time diagram. Simply click on the icon in the symbol bar of the diagram.

Recommendation Check the different options using the demo measurements, or one of your own measurements. This will quickly give you a summary of the different options of the level-time diagram analysis.

The symbol bar of the level-time diagram The level-time diagram is best operated using its individual icons. The individual icons shown in the left column are accompanied by their respective menu commands, as well as explanations. Toolbar Scaling:

Measurement period

The entire time-axis is shown

28-days

28 days are shown

7-days

7 days are shown

1-day

1 day is shown

To the begin

Goes to the beginning of the measurement


Moves a time segment backwards.

Next time segment

Moves a time segment forwards.


To Measurement end

Goes to the end of the measurement

Enlarge

The scaling of time segments is decreased by one level.

Reduce

The scaling of time segments is increased by one step.

X-axis scaling

Select the time segment, and the start time of the measurement segment.

Zoom undo

This command restores the last enlargement after using the zoom function

Scaling left

Activate this icon, and click on the legend of the measured variable that is to be used as scaling factor.

Scaling right

Activate this icon, and click on the legend of the measured variable that is to be used as scaling factor.

Scale Y-axis

Calls up the scaling dialog.

Show/hide limit value data

Calls up the limit value dialog.

Channel selection

Calls up the channel selection dialog for this diagram.


Application-oriented channel selection data

Calls up the application-oriented channel selection dialog for this diagram.


Shows the measurement value list with the channels selected in the level-time diagram.

Display energy (measurement function P only) integrated over visible time interval in actual window. Positive and negative values are integrated separately: negative value / positive value

Zoom Using the left mouse button, draw a rectangle within the diagram. Upon releasing the left mouse key, the zoom command is executed. Multiple zooming actions are possible – there is also an undo function. After zooming, you will always get a reasonable time-axis zoning, therefore, there are no interrupted intervals!

Tip: How to move a curve to the foreground If you press and hold the Shift key, and click on the legend of a curve with the mouse, the diagram is re-drawn, whereby the selected curve is drawn last, i.e., it is not obstructed by another curve.


Figure 102: Level-time diagram - Menu Data

1. Manual channel selection for modification of channel selection - see above. 2. Application oriented selection for channel selection according to measuring tasks – see above 3. Show limit value as a dashed line in the diagram

Figure 103: Level-time diagram - Limit values

4.5.4.3 Level time diagram: Data menu

There are two options for a new selection of measurement rows for the diagram.


Figure 104: Level-time diagram - Limit value is displayed

The limit value of a measured value can be displayed. Exceedings are represented as shaded segments.

4.5.4.4 Measurement value list

Shows the measurement value list with the channels selected in the level time diagram. Just click on the appropriate icon.

Figure 105: Measurement value list analysis

All measurement values with date/time are displayed in a table. The start point matches the start point in the


current level time diagram (the first value is available at the end of the first interval!). Print allows to select the measurement period to be printed using defaults, or with desired start time and period. Using the S button, a status column with interval information, including number of intervals, voltage (U) and current (I) overflow, as well as power supply failure (N), is also displayed. (G) signifies a valid measurement interval. (C) .. clamp error signifies that the type of the current sensor has been changed during a measurement.


Correlations of voltages and currents

These values can be used to get information about sources of disturbances in the power network. The relation between voltage extreme values (Umax, Umin) and the actual phase currents can be seen. On the other hand the voltage at the time of the maximum current is recorded simultaneously:

Vo ltage

C urren t

t

U , I

Um ax ac t

Iac t Um ax

U m in ac t

Iac t Um in

Im ax ac t

Uac t Im ax

0 10 m in Within each measuring interval (e.g. 10min) the extreme values of the mains voltage (Umin act, Umax act) based on 10ms r.m.s. values are detected. Exactly at the time of the occurrence of these voltage extreme values (Umax act, Umin act) the phase currents (Iact Umax, Iact Umin) are stored. On the other hand at the time of the maximum current (Imax act) the actual pending voltage (Uact Imax) is stored. All of these parameters can be evaluated graphically in level-time diagrams or numerically in measurement value tables. Export with all other interval values is possible.

Note: the extreme values (Imax act, Umax act, Umin act) are always based on 10ms r.m.s. values independent of the averaging time preset in the job (0,5 periods up to 45 s).

Note: not available for MEMOBOX 800.


4.5.5 Events The UNIPEDE DISDIP table is used for the classification of voltage dips. The events are sorted by their duration and deviation from the nominal value, and their quantities are listed in the corresponding fields. An extended UNIPEDE DISDIP table can be found in the corresponding analysis in CODAM BASIC/PLUS. In addition, voltage interruptions and surges are also displayed here. The part of DISDIP table defined by UNIPEDE is marked with a frame.

Figure 106: Analysis with the UNIPEDE DISDIP table

Buttons L1, L2 and L3: the number of events of

the respective phase is shown. Button Lx: the events on all phases are shown.

Note: If there was a power failure on all three phases 3 single events for each phase will be recorded. The response time for events is always 10ms – this cannot be modified.

There are two extra lines which sum up short and long interruptions (<3min, >=3 min).


4.5.5.1 Events - Measurement value list

Clicking on the List icon produces a detailed list of all events.

Figure 107: Event list analysis

The time, duration, and minimum or maximum voltage during an event are shown. If there is no voltage value given in the table the event was classified as an interruption (threshold is defined in limit value file e.g. 1% or 10%). The buttons L1, L2, and L3 show the number of

events of the respective phase only. The button Lx shows the events on all phases. The button E+i shows events and interruptions. The button E shows events only. The buttons ist / ilt show short (ist) or long (ilt)

interruptions only


4.5.6 Statistical values (version Q only)

Table summary of the measurement analysis

Figure 108 Analysis Statistical values

Presentation of the statistical analysis of the most important measured values. Columns #1 to #3 contain the measurement parameter, the unit and the limit values defined in the job or in limit value file. Column #4 shows the percentage of the measured values which are within the limits, and the minimum and the maximum values which were detected during the whole measuring period. Column #5 gives the deviation between limit value and actual values. Example for events: 100 events are allowed. If there occurred 120 events 100 –120 = –20 will be found in the table.


Example

Figure 109 Analysis - Table summary; Example No. 1

In this analysis the flicker Plt is examined more closely. 1. The limit value of the Plt is 1.00. It must be

maintained for 95% of the measurement time (see EN 50160).

2. The maximum measured value for the Plt at phase L3 is 0.88. Therefore, the limit value of 1 has been maintained for 100% of the measured values.

3. The difference from the limit value is (1 - 0.88) = 0.12. According to the standard, 5% of all measured values can be above the limit value. Here none of the values is above the limit, so the reserve is 5% (100% of measured values are within tolerance, 95% must be, so 100%-95%=5% is the difference).

Example:

Figure 110 Analysis - Table summary; Example No. 2

Now evaluate phase L1 of the same measurement.

1 32

12 3


Analysis: 1. The new limit value of the Plt is 1.00. It must be

maintained for 95% of the measurement time. 2. The maximum measured value for the Plt at L1 is

1.33. The limit value of 1 is maintained for 98.8% of the measured values, i.e., by more than the required 95% of all measured values, 1.2% are above.

3. The difference from the limit value is therefore (1.0 - 1.33) = -0.33%. Additionally 3.8% of all measured values could be above the limit value before the 95%-value violates the standard. The reserve to the 95% limit value is 5%-1.2%=3.8%.

Important:

Exceeding 95 % of the limit value is accentuated in the log by a bold framed field.

If the limit value is exceeded by less than 5% of the measured values, these are shaded and thus accen-tuated.

4.5.7 Most critical values (function Q only)

Displays the most critical values of selected measurement parameters in table form.

Figure 111 Analysis of the most critical values


In the most critical values form, the time of the five most critical values (those which come closest to the limit value) is given in addition to the numerical values. Parameters such as voltage variations, interruptions, events, harmonics #3, #5, #7 and #9 THD U, flicker, frequency and unbalance are checked because they are the most important for practical power quality measurements.


4.5.9 All exceedings (version Q only)

Displays all exceedings from the standard of a measurement in table form.

Select Analysis - all exceedings.

Select the required parameters (for available parameters see table in chapter “level time diagram”). All measured values are represented in table form with time and value.

Figure 112 All exceedings


4.6 Menu Settings

Figure 113: Menu settings

This menu is mainly used to setup general settings like language of user interface, communication parameters, selection of files which contain the limits for evaluation, or files for the AOA, the application oriented analysis function.


4.6.1 General… Select limit value file and file for application oriented analysis. Enter a header for the print-outs. All settings are saved and are active at next start of CODAM BASIC/PLUS. Set serial port (e.g. COM1) and Baud rate.

Figure 114: General settings

Limit value level file for analysis Select the file which contains the limit values for the analysis of the MEMOBOX measurements. If you change the limit value file while a measurement is open, the measurement will be analysed with the new limit value file after exit from the dialog box.

Select one of the prepared files: “En50160.gwd” is preset for limits defined in EN50160, limits for harmonics up to 25th order. “50160_61000-2-2.gwd” provides harmonics limits up to 50th order according to IEC 61000-2-2


“Default GWD60Hz.gwd” is for applications in 60Hz systems.

Application oriented analysis file Select a user defined application oriented analysis file, which can be modified according to your experience and knowledge.

Serial Port Set COM port (COM1..9) and Baud rate. The MEMOBOX automatically recognises the Baud rate. The standard Baud rate is 115200 Baud. If there are problems with data download, select a lower Baud rate, close other applications (e.g. virus scanners).

Title on Print Here you can specify the title text with max. 50 characters that is to appear on every printout.

Important: If you have activated the tick mark “Automatic time synchronisation when saving a job to MEMOBOX” in menu Settings – General… the actual date/time of the PC is transferred to the MEMOBOX if a job is saved into the MEMOBOX (automatic time synchronisation). So please, check date/time of your PC!

OK Exits from the dialog box. Changes will be saved.

Cancel Exits without saving the changes.


4.6.2 Limit value level file

Load and modify a limit value file. We can define specific limit value files additionally to the default limit value file. En50160.gwd is according to standard EN 50160. This modified limit value file can be stored. The Limit value file selected under Settings General… serves as a limit value table for the analysis of measurement data files.

Figure 115: Limit value level file settings

Values within tolerance Here you can change the limit value for the occurrence probability. According to the EN 50160 standard, this statistical limit value is 95%. If you change this value, all limit values will be in relation to the new value. The new value will be updated in the entire dialog box.


Slow Voltage Variations

Positive tolerance, 95% of the time Indicates the upper limit value of Un, which, when exceeded, is registered as a slow voltage variation. The % Un is entered. The limit value is calculated as Un+ x% Un. In the standard case, this value is 230V + 10%, i.e. 253 V.

Negative tolerance, 95% of the time Indicates the Un lower limit value, which, when exceeded, is registered as a slow voltage variation. The % Un is entered. The limit value is calculated as Un- x% Un. According to the EN 50160 standard, this limit value is 230V - 10 %, i.e. 207 V. According to the new regulation EN50160 from November 1999 there are additional limit values for 100% of the time. Evaluation is similar to the 95% limit values.

Note: A voltage variation occurs when the measured mean value (according to the EN 50160 standard, the 10-minute mean value) is above or below the limit value. The standard is met if 95% of all measured values are between the positive and the negative 95% limit value and 100% of all measured values are within the 100% limit value tolerance band.

Important: Short voltage surges or dips are recorded as events. The limit values for events can only be defined in job processing.


Line Frequency

Fundamental frequency This value cannot be changed. For 60Hz versions of MEMOBOX select an appropriate limit value file

Positive tolerance, 99,5% of the measuring period Indicates the upper limit value, which, when exceeded, is registered as an exceeding of the mains frequency. The % fn is entered. The limit value is calculated as fn + x% fn. In the standard case, this limit value is 50 Hz + 1 %, i.e. 50.5 Hz.

Negative tolerance, 99,5% of the measuring period Similar to the positive tolerance. Limit Value 49.5 Hz

Note: A frequency variation of the voltage occurs if the measured mean value (according to the EN 50160 standard, the 10-minute mean value) is above or below the limit value. The standard is met if 95% of all measured values are between the positive and the negative limit value.

Positive tolerance, 100% of the measuring period Indicates the upper limit value, which, when exceeded, is registered as an exceeding of the mains frequency. The % fn is entered. The limit value is calculated as fn + x% fn. In the standard case, this limit value is 50 Hz + 4 %, i.e. 52 Hz.

Negative tolerance, 100% of the time Analogous to the positive tolerance. According to the standard, the limit value is 47 Hz. (- 6% fn)

Note: If the values under normal operating conditions are above or below these values, it is considered to be a violation of the standard. All values must fulfil this requirement! (100%)

Flicker Indicates the limit value for permissible flicker level Plt.


Note: An exceeding occurs when the mean measured value Plt (according to the EN 50160 standard, the mean value Plt is calculated over twelve 10-minute mean values Pst) is above or below the limit value. The standard is met if 95% of all measured values are below the limit value.

Voltage Unbalance: Indicates the limit value for permissible voltage unbalance in three phase systems.

Note: An exceeding occurs if the measured mean value (according to the EN 50160 standard, the 10-minute mean value) is above the limit value. The standard is met if 95% of all measured values are below the limit value.

Number of allowed events Determines the permissible number of events. The standard does not prescribe a value. The default value is 100 events during one week.

Interruption limit Define the threshold for interruptions in % of UN. A dip below this value will be considered as interruption.

Interharmonics Opens the Limit value level file - Interharmonics dialog box. It indicates the limit values for interharmonics.

Harmonics Calls up the Limit value level file - Harmonics dialog box. It indicates the limit values for harmonics and the THD.

Signalling voltages Calls up the Limit value level file - Signalling voltages. Indicates the limit values for signalling voltages.

Open Opens a saved limit value level file with data extension *.gwd.


Save Saves the selected limit values under the same file name. The data extension of a limit value level file is *.gwd.

! If you have made changes to the standard limit value level file and then save this file, when you exit from the dialog box you will be asked whether you want the open measurement to be analysed with the updated limit value level file.

Save as… Saves the selected limit values. The file name can be selected. The data extension of a limit value level file is *.gwd.

Print Prints the values of the current limit value level file.

Close Exits without saving the changes. A warning message appears, asking whether the modified values should be saved.


Limit Value Level File - Harmonics

Figure 116: Limit value level file - Harmonics

Specify or modify the limit values for harmonics. These altered limit values can be saved. All limit values for harmonics which appear in the list on the right hand side (limit value list) are saved in the limit value level file.

THD Limit value for the THD (Total Harmonic Distortion).

Harmonic Order of the harmonic (2nd-40th harmonic).

Level Limit value in % Un for the selected harmonics .

Set Enter the required harmonic and the appropriate limit value. The frequency and the limit value are adapted in the limit value list by using Set. 40 limit values for harmonics can be defined.


Transfers the harmonics selected in the selection list with the appropriate limit value to the limit value list.

Transfers all harmonics listed in the selection list with the appropriate limit value to the limit value list.

Transfers the harmonics selected in the limit value list with the appropriate limit value to the selection list.

Transfers all harmonics listed in the limit value list with the appropriate limit value to the selection list.

OK Exits from the active dialog box. The changes made are saved. In order to save the values, the modified limit value level file must be saved.

Cancel Exits from the active dialog box without saving the changes made.


Limit Value Level File - Interharmonics

Figure 117: Limit value level file - Interharmonics

Specify or modify the limit values for interharmonics. And save to the hard disk. Only limit values for interharmonic frequencies, such as 120 Hz or 1010 Hz, can be specified. For harmonic frequencies up to 2000 Hz, the limit values defined for harmonics are valid. The frequency resolution is 5 Hz.

Set Enter the required interharmonic and the appropriate limit value. Enter the frequency and the limit value into the list by using Set. A maximum of 10 limit values for interharmonics can be defined.

Delete If you want to delete the interharmonic, mark the required frequency in the list and select Delete.

OK Exits from the active dialog box. The changes made are saved. In order to save the values, the modified limit value level must be saved.

Cancel Exits from the active dialog box without saving the changes made.


Limit Value Level File - Signalling Voltages

Figure 118: Limit value level file - Signalling voltages

Here you can specify or modify the limit values for signalling voltages. The modified limit values can be saved.

Frequency Enter the frequency of the signalling voltages (ripple control signals).

Level Limit value in % Un for the selected signalling voltage frequency

Set Enter the required signalling voltage frequency and the appropriate limit value. The signalling voltage frequency and limit value are entered in the limit value list by using Set.

Transfers the signalling voltages selected in the selection list with the appropriate limit value to the limit value list.


Transfers all signalling voltages listed in the selection list with the appropriate limit value to the limit value list.

Transfers the signalling voltages selected in the limit value list with the appropriate limit value to the selection list.

Transfers all signalling voltages listed in the limit value list with the appropriate limit value to the selection list.

OK Exits from the active dialog box. The changes made are saved. In order to save the values, the modified limit value level file must be saved.

Cancel Exits from the dialog box without saving the changes made.

4.6.3 Application oriented analysis file

Load and modify a file for application oriented analysis. This modified file can be stored.

Figure 119: User defined application oriented analysis


Select or create a new definition file with button “Select definition file…” for building up a specific analysis:

Figure 120: Select/create a definition file

If we want to have standard entries we can use button “Fill with defaults”: it copies useful definitions to the actual file for all measuring functions (P, Q). Now we can import useful applications form another file. Button “Select source” opens an existing definition file. There is a default file installed in the folder of CODAM PLUS for each language. In section filter set the desired measurement function (P or Q), and required phases (one, all, or mixed) Button “Show source” presents actual contents of the source file. From this file we can transfer useful application data by drag&drop into the new definition file. So we can build up a definition file according to user requirements.


Figure 121: Move application info by drag and drop The entries in field application group can be sorted also by drag&drop. Use “Edit” to modify designation, “Add” and “Delete” to add/delete an application group. So the analysis system can learn from your experience and support future measurement tasks optimal. Area “Application” presents the contents of the actual application group. Button “Add” adds a new application:

Figure 122: Add a new application Enter an appropriate name, select a new limit value file and a specific text. “Copy” copies the text to the clipboard – so it can be inserted to a measurement protocol. “Delete” deletes an application. The button “Edit” below field Application edits the related text.


Figure 123: User defined application oriented analysis Area “Selected channels” shows the predefined channels for level time diagram. Button “Edit” opens a special editor for precise setup of the analysis channel:

Figure 124: Edit channel setup

We can add and delete specific channels and define their analysis parameter such as begin and end of scale, rounding etc. For beginning and end of an axis we can choose Nominal, Minimum, Maximum, Range begin, Range end or Value. There is an additional offset to these


values which will be added. The settings in the picture above will define a scale from 230V-15%=195,5V up to 230V+10%=253V for Umean. “OK” saves all settings. Select this file in menu settings – application oriented analysis. It will be used for next analysis automatically.


4.6.4 Colours... You can assign a freely definable colour to each curve and column. Select Settings Colours and double-click on the colour to be changed. The Windows® standard colour selection dialog will appear.

Figure 125: Colours

You can select the colours for the bars used in the analyses regarding Cumulative frequency, and Graphical summary, and for the curves in the Level-time diagram. The command Standard will reset to the default settings.

4.6.5 Print diagram without background

Available if a Graphical summary is the active window. The Graphical summary diagram is printed on a white background if this option is active.


4.6.6 Analyse phase L1 only

Available if no measurement data file is open. Only phase L1 of the measurement to be opened is analysed. This is most useful in the Graphical summary analysis, if a single-phase measurement was performed. In tabular evaluations there will be no values for L2 and L3. Activate the button or the corresponding command before opening the measurement. Note: “L1” overrides the button “All” in channel selection for level time diagram. But “Manual channel selection” allows to add channels of other phases.

Figure 126: Graphical summary - Single-phase analysis

4.6.7 Curve width Available if a level time diagram is the active window. You have three options regarding the curve width. You can select Settings - Curve width - thin, medium, or large.

4.6.8 German, English, French, Italian, Slovak, Croatian, Spanish, Finnish, Lithuanian

You can switch to the desired language with the appropriate command.

Note: This is not available if a measurement file is open.


4.6.9 Export

Set-up of all settings required for automatic or manual data export.

For data export to Windows applications the parameters for the export must be defined once. Menu Settings Export provides all necessary definitions:

Figure 127 Format definitions for export file

The format shown above is perfect for import into MS EXCEL. Confirm with OK.


Select up to 99 channels for the export:

Figure 128 : Export channel selection

For available parameters see table in chapter “level time diagram”. These settings are stored and will be used for all future exports. Select menu File Export. Interval or event data can be exported to an ASCII file which will have the name of the actual measurement data file with .ASC as extension. This file can easily be explored by a text editor or opened in MS EXCEL. Importing into MS EXCEL is very simple. Open the respective ASC-File with Open file. The import wizard will automatically format the imported data. Note: CODAM BASIC automatically exports interval and event data after data transfer from the MEMOBOX to the PC using these settings!


4.7 Menu Window

4.7.1 New Window Creates a new window.

4.7.2 Cascade Cascades active windows.

4.7.3 Tile windows Tiles active windows.

4.7.4 Arrange icons

Arranges the icons of minimised CODAM BASIC/PLUS windows.

4.7.5 "Window name"

With the “Window name” command you can put the required analysis window in the foreground.

4.8 Menu Info

4.8.1 Info about CODAM..

Calls up an information window containing information about the current version of CODAM BASIC/PLUS:

Figure 129: Info about CODAM


Codam Basic Plus Glossary 151 EO 0401G Rev. B

5. Glossary

This chapter explains the terminology used in this manual.

Job A measurement job contains the following information: Memory model for interval data and events: linear,

circular Interval length: 5s, 10s, 30s, 1, 5, 10, 15 or 60

minutes Threshold levels for events Transformer ratios for PTs and CTs

EN 50160 European quality standard for assessing voltage quality in medium and low-voltage electricity distribution systems under normal conditions.

Interval (= Measurement interval) At the end of this programmed period the mean, minimum and maximum values are stored as measured values. Example: A 3-phase MEMOBOX with 2MB memory can record 4334 intervals in function Q. From this we can calculate the maximum recording time

Linear, Circular The values of a measurement job can be saved in one of two ways, either linear or circular: Linear: measurement data from a measurement

job (= measurement period) are stored in the MEMOBOX . If the memory is full, no more measurement data are stored.

Circular: measurement data from a measurement job (= measurement period) are stored in the MEMOBOX . If the memory is full, the oldest


measurement values are overwritten by the newest measurement values. The overwritten memory contents are thus lost.

UNIPEDE – “Union of Producers and Distributors of Electrical Energy” is a professional organization of undertakings of the European OECD countries responsible for the generation, the transmission and distribution of electricity related activities. UNIPEDE holds congresses every three years to allow power utilities to state their ambition, indicate their concerns, projects and performances.

Codam Basic Plus Index 153 EO 0401G Rev. C

6. Index

. .30P, .40P, .80P ............................................ 33, 69 .30Q, .40Q, .80Q ........................................... 33, 69 .ASC.................................................................... 63

1

100% limit value ................................................... 40 100% of time limit value ..................................... 38 100%-value .......................................................... 96

5

50160_1000-2-2.gwd.......................................... 102 50160_61000-2-2.gwd ................................. 38, 100

9

95%-value ...................................................... 40, 96

A

Additional current transformers.............................. 83 All exceedings .................................................... 46 Analyse phase L1 only ........................................ 146 Analysis

5 most critical values ....................................... 125 All exceedings ................................................. 127 Cumulative frequency ...................................... 102 Graphical Summary ..................................... 39, 96 Statistical values ............................................. 123 Table summary.................................................. 99

Analysis - Cumulative Frequency ....................... 41 Analysis – Table summary ................................. 41 Analysis of the Measurement Data......................... 38 Application oriented analysis ....................32, 43, 107 ASCII Format ....................................................... 67 Auto scroll function ............................................... 32


Available parameters .......................................... 110

B

Baud rate ............................................................. 68

C

Change current transformer................................... 56 Change nominal apparent power ........................... 57 Channel-specific text............................................. 72 Circular .............................................................. 151 class limits ......................................................... 105 Close the measurement data file............................ 55 Close, Exit............................................................ 67 CODAM ................................................................. 9 CODAM BASIC/PLUS window............................... 19 Colours .............................................................. 145 COM1..9 ............................................................ 130 Connecting the MEMOBOX................................... 30 Continuous curve.................................................. 98 Continuous job ............................................. 22, 78 Correlations........................................................ 120 Cumulative frequency ..........................102, 104, 145 Cumulative Frequency........................................ 41 Current ................................................................ 72 Curve width ........................................................ 146

D

daily..................................................................... 78 Default GWD60Hz.gwd........................................ 38 Defining a Job ...................................................... 20 Download of measurement data............................. 33 Download time...................................................... 68

E

EN 50160 ................................... 39, 42, 96, 98, 132 En50160.gwd ...................................................... 38 EN50160.gwd .................................................... 102 End of the measurement period............................. 71 Events ..................................................75, 100, 121

Memory Model................................................... 75 Negative Tolerance for Recording ....................... 75


Positive Tolerance for Recording ........................ 75 Tolerance level .................................................. 75

Events - Measurement value list .......................... 122 Export .................................................................. 60 Export (VSE Format)............................................. 66

F

File extension ....................................................... 54 filter .................................................................. 141 firmware status ..................................................... 95 Firmware upgrade................................................. 90 Flicker................................................................ 101 Frequency.......................................................... 101 Frequency measurement....................................... 80 Function P .......................................................... 10 Function Q .................................................... 10, 45

G

Glossary............................................................. 151 Graphical summary .......................................... 145 Grouped scaling ................................................. 112

H

hardware version .................................................. 95 Harmonics.................................................. 100, 134

I Information about measurement ............................ 58 Input range .......................................................... 71 Install Shield Wizard ........................................... 17 Installation ..................................................... 15, 16 Interharmonics ....................................72, 134, 138 Interruptions....................................................... 100 Interval length ...................................................... 77

J

Job Current ............................................................. 82 Open previous................................................... 35 Power ............................................................... 72 Read................................................................. 72


Save to MEMOBOX ........................................... 29 Write ................................................................ 72

Job file Load ................................................................. 72 Open ................................................................ 20 Print ................................................................. 71 Save ................................................................. 72

Job processing Summary ......................................................... 71

Job processing ..................................................... 70 Current ............................................................. 23

Job templates....................................................... 85

L

Languages ................................................. 146, 147 Level time - Symbol bar ...................................... 114 Level time diagram ............................................. 109 level-time diagram ................................................ 42 limit value file ..................................................... 38 Limit value level file..................................... 131, 140 Limit values........................................................ 131 Linear ................................................................ 151 list of harmonics............................................... 106

M

Main symbol bar ................................................. 47 Maximum continuous measurement duration.......... 77 Max-value............................................................. 82 Measurement data file........................................... 33 measurement job .................................................. 20 Measurement parameters...................................... 20 Measurement period ....................................... 22, 71 Measurement principle.................................... 72, 80 Measurement protocol ....................................... 60 Measurement Segments ....................................... 78 Measurement specific text ............................... 71, 73 Measurement value list ....................................... 118 MEMOBOX

Input Range ...................................................... 74 MEMOBOX Information......................................... 94 Memory model.............................................. 75, 77 Most critical values ............................................ 45


MS EXCEL® ........................................................ 65

N

New measurement function ................................... 91 Nominal voltage.................................................. 74

O

Online Daten von Memobox................................... 95 ONLINE Mode ...................................................... 31

P

PC-time ............................................................... 86 PERMLINK........................................................... 68 Power .................................................................. 85 Print diagram without background ....................... 145 Print document ..................................................... 60

R

Read previous results ........................................... 70 Read results ......................................................... 68 Reading out of the Measurement Data ................... 33 Reset ................................................................... 87 RESET................................................................. 26 Response tolerance .............................................. 71

S

scaling ............................................................... 111 Select with voltage transformer .............................. 55 Serial Interface ................................................... 130 Set date and time ................................................. 85 Settings – general .............................................. 129 Settings Colours ............................................... 145 Settings Export ................................................. 147 Setup Printer........................................................ 60 Setup program ..................................................... 16 Show limit value ................................................. 117 Show source ..................................................... 141 Signalling voltages...................................... 101, 134 Signalling Voltages ............................................. 139 stacked bar chart .................................................. 96 Standard limit value file....................................... 129


Starting the Program ............................................ 17 statistical measurement data ............................. 61 STOP ONLINE test ............................................... 32 switch activated job............................................... 30 Switch activated job ........................................... 22 Switch-activated job ........................................... 78 Symbol bar Cumulative frequency.......................... 52 Symbol bar events.............................................. 52 Symbol bar level time diagram............................... 48 Symbol bar list of events.................................... 53 Symbol bar measurement value list ....................... 51 Symbol bar ONLINE Test ...................................... 50

T

THD-Total Harmonic Distortion ............................ 136 time activated job ................................................. 30 Time activated job ........................................ 22, 78

U

Unbalance.......................................................... 101 UNIPEDE ........................................................... 152 UNIPEDE DISDIP table ...................................... 121 Update licence ..................................................... 93

V

Values within tolerance ....................................... 131 Voltage transformer .............................................. 74 Voltage Variations ................................................ 99 VSE-Export ......................................................... 61

W

weekly.................................................................. 78

Z

Zoom ................................................................. 116

Codam Basic Plus Appendix: Abbreviations, symbols 159 EO 0401G Rev. C

7. Appendix: Abbreviations, symbols

Flicker Pst Flicker value short term Flicker Plt Flicker value long term THD Total harmonic distortion U Voltage Un Nominal voltage I Current U h1 Voltage, fundamental component I h1 Current, fundamental component P Active power Q Reactive power S Apparent power PF Power factor CF Crest factor (peak value / rms value) TAN Tangent Total for all three phases L1, L2, L3 Min general: minimum Max general: maximum Mean average value Umin smallest voltage r.m.s. value in the measuring

interval based on the averaging time set in the job (0,5 mains periods up to 45s)

Umax, Imax highest voltage, current r.m.s. value in the Measuring interval based on the averaging time set in the job (0,5 periods up to 45s)

L1, L2, L3 Phases L1, L2, L3 Iact Umax actual current at the time Umax occurred Iact Umin actual current at the time Umin occurred Uact Imax voltage at the time Imax occurred Umin act minimum voltage based on 10ms r.m.s. values Umax act maximum voltage based on 10ms r.m.s. values Imax act maximum current based on 10ms r.m.s. values


Printed in Austria / Gedruckt in Österreich / Imprimé en Autriche / Impreso en Austria / Stampato in Austria

LEM NORMA GmbH Liebermannstrasse F01 CAMPUS 21 A-2345 Brunn am Gebirge AUSTRIA Tel.: +43(0)2236-691-0 E-Mail: [email protected] Internet: www.lem.com EO 0401G Rev. C Right to change specification reserved / Technische Änderungen vorbehalten / Sous réserve de modifications / Nos reservamos el derecho a modificaciones técnicas sin previo aviso / Tutti i diritti di variazione riservati

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Codam Basic Plus V3.0 User Manual