NUS Datasheet Man

8/2/2019 NUS Datasheet Man

1/39

Instruction ManualUltrasonic Level Meter

Model: NUS

Manual-NUS-8-13-02

KOBOLD Instruments Inc. 1801 Parkway View Drive Pittsburgh PA 15205

Phone (412) 788-2830 Fax (412)-788-4890 www.koboldusa.com


2/39

NUS

Page 2

Contents

Contents ....................................................................................2

1. General................................................................................32. Specifications ......................................................................43. Mechanical Installation ........................................................53.1.General Installation .............................................................53.2.Standpipe Mounting ............................................................63.3.Standard Mounting Configuration........................................64. Electrical Connection...........................................................74.1.Wiring ..................................................................................74.2.Wiring Interconnection.........................................................74.3.Wiring Diagram....................................................................85. Operation.............................................................................9

5.1.Function Display................................................................105.2.Operation...........................................................................115.3.Setup Overview.................................................................125.4.Measured Value and Status Display .................................125.5.Quick Meter Setup for Normal Applications.......................135.6.Linearization ......................................................................145.7.Current Output Adjustment................................................185.8.Echo Quality ......................................................................215.9.Additional Input Possibilities ..............................................235.10.Simulation and Function Test ..........................................245.11. Interlocking......................................................................25

5.12.Adjustment of the LED Display (when equipped) ............276. Errors and Warnings .........................................................296.1.Diagnostics and Error Elimination .....................................296.2.Error Codes .......................................................................307. Dimensions........................................................................318. Error Analysis....................................................................329. V-H Setup Matrix...............................................................3410. Quick Meter Setup for Normal Applications: Overview......35

Manufactured and Marketed by:

Kobold Instruments Inc.1801 Parkway View Drive

Pittsburgh, PA 15205412-788-2830

Fax: 412-788-4890www.koboldusa.com


3/39

NUS

Page 3

KOBOLD NUS Level TransmitterUser Instructions

CAUTION: For safety reasons, please read the cautionary information

located at the end of the manual before attempting installation.

These devices may only be installed, used and maintained by skilled personnel, whoare familiar with this service manual and can observe applicable regulationsregarding industrial safety and accident prevention.

1. General

The KOBOLD NUS is intended for use in applications where level measurement is

desired and the level data needs to be indicated locally and/or transmitted to alocation remote from the level transmitter.

The NUS may be equipped with a 4-digit, 7-segment red LED display for local levelindication that may be scaled in the users desired engineering units. The NUS alsocontains a level transmitter that outputs a 4-20 mA, analog signal. This signal isproportional to the tank level measured by the instrument. The NUS is readilyadjusted and scaled by the user via internally accessible buttons.

The NUS sensor is made of PVDF. This highly chemical-resistant material allowsthe NUS to be used in many difficult industrial applications, especially in thechemical industry.

The ultrasonic sensor emits ultrasonic pulses, which are reflected by the medium tobe measured. These "echoes" are then received by the same sensor. The timetaken by the ultrasonic pulses (to the material and back) is temperature-compensated before measurement results are sent to the analog output and digitaldisplay.


4/39

NUS

Page 4

2. Specifications

Housing: Epoxy-Coated Aluminum, Polycarbonate

Sensor and connection: PVDF

Measuring range: Liquids: up to 23 (2 model)Liquids: up to 13 (1-1/2 model)

Bulks: up to 15 (2 model)Bulks: up to 6 (1-1/2 model)

Measuring accuracy: 0.25% of maximum range

Resolution: +/- 0.12

Deadband or block distance: 10 (1-1/2 model), 16 (2 model)

Frequency: 50 kHz / 70 kHzPulse frequency: 0.5 to 3 Hz (depending on electronics version)

Radiation beam: 5.5 conical

Min. delay time: approx. 5 s

Output signal: 4 to 20 mA

Load: max. 600 Ohm

Process temperature: -40 to +176F (-40 to 80C)

Ambient temperature: -4 to +140F (-20 to 60C)

Max. operating pressure: 30 PSIG (3 bar Abs.)

Protection class: NEMA 4X / IP 67

Construction: Combination sensor and electronics

Process connection: 1 MNPT, 2 MNPT

Electrical connection: 1 m cable(s) with conduit connection

Power supply: 12 to 36 VDC (2-wire)90 to 127 VAC, 50-60 Hz. (4-wire)

Display (when equipped): 4-digit, red LED Display,

digit height: 0.3 (7.62 mm),programmable decimal point adjustment

Display range: -1999...9999


5/39


6/39

NUS

Page 6

3.2. Standpipe Mounting

If the desired maximum media filling height will enter the deadband space, thesensor must be installed on a short standpipe to prevent improper operation.

No material may be allowed to form on the pipe ends.

The recommended dimensions of the short standpipe are approximate values,which you can vary slightly if required.Keep the standpipe height as short aspossible.

The inner side of end-piece must besmooth no edges, no welding seams.

During operation, noise echoes (thatmay be generated by a short feed pipe forexample) may be faded out with the

function (fade out noise-echoes, see page20).

Standpipe diameter and height

Dmin (in.) Lmax (in.)

2 6

3 9.5

4 15

3.3. Standard Mounting Configuration

Mounting with 1-1/2 or 2 NPT

Welded Sleeve

D

L


7/39

NUS

Page 7

4. Electrical Connection

4.1. Wiring

When utilizing the current output, use a shielded two-wire cable. For optimalelectromagnetic compatibility, the shield of the cable should be grounded at thecontrol room or at the nearest equipment ground point.

The connection at the electronics housing uses a conduit connection and anintegral 1m cable for the 2-wire version, or a conduit connection and two integral1m cables for the 4-wire version.

4.2. Wiring Interconnection

The conduit connection allows for a wide range of cable terminations into asuitable junction box using flexible conduit, standard thinwall, or rigid conduit. Acable gland may be used on the 2-wire units where a flexible cable interconnectionis permitted.

PLEASE NOTE:

The 2-wire units are 4-20mA loop-powered devices designed for use with anexternally supplied 12-36 VDC power source.

The 4-wire units are for use with 90-127 VAC, 50-60 Hz power and provide an

internal power source for the 4-20mA output signal. DO NOT CONNECT THE 4-WIRE UNIT TO AN EXTERNALLY POWERED CURRENT LOOP OR DAMAGE TOTHE ELECTRONICS WILL OCCUR.


8/39

NUS

Page 8

4.3. Wiring Diagram

2-wire

-

+

Brown (+)

Black (-)

24 VDC / 4-20 mA 2-wire

4-wire (2 cable)

G

21

Ground Grn/Yel

AC ~ (2)

AC ~ (1)

-

+

Brown (+)

Black (-)

4-20 mA

Attention! In the event that the currentoutput is not used, the output must bejumpered with a 250-ohm resistor toallow for display operation.


9/39

NUS

Page 9

5. Operation

The NUS Series offers a full range of user programmable functions and displays,

such as: zero & span adjustment, sensor temperature, and echo quality.

The programming features and display values are accessed via a programmingmatrix. This matrix has both a vertical (V) and horizontal (H) position that is shownon the function display. The instruction manual references these matrix positions in aVnHn format, where n = the vertical or horizontal matrix position.

Example: V3H5 = 3rd vertical matrix position and the 5th horizontal matrix position.

Navigation through the programming and status display matrix is performed via thefunction keys per section 5.2.

The complete programming matrix is shown in: Section 9: V-H Setup Matrix.

ATTENTION: Please review and familiarize yourself with the setup matrixinformation shown in Section 9 and the Quick Setup Adjustment shown inSection 5.5 and Section 10 before proceeding.


10/39

NUS

Page 10

5.1. Function Display

By removing the back cover, the internal electronics of the transducer become

accessible. An LCD Display is provided for adjustments and visual display offunctions.

During operational disturbances, the electronics differentiate between an error and awarning. (Compare also: Section 6, Errors and Warnings)

2- wireElectronics detects an error

The bargraph is flashing within the display

The current output assumes the user selected fault value of: 3.8mA, 22mA, orhold last value

An error-code in V9H0 is displayedElectronics detects a warning

The device continues to measure

An error-code in V9H0 is displayed

4- wireElectronics detects a error

The red LED next to function display flashes

The bargraph is flashing within the display

The current output assumes the user selected fault value of: 3.8mA, 22mA, or

hold last value An error-code in V9H0 is displayedElectronics detects a warning

The red LED next to function display lights up

The device continues to measure

An error-code in V9H0 is displayed


11/39

NUS

Page 11

5.2. Operation

The electronics are adjusted while viewing a 10 x 10 LCD matrix.In simplest case, adjustment is carried out only via three matrix fields.

Display elements

VH-Position

Bargraph display-Display: Flow or Echo Quality

-Flashes with disturbance

Parameter

The matrix field is shown under the letters VH. The appropriate parameter isdisplayed to the left. The bargraph flashes in case of error and displays the currentor the quality of echo.

Table 5.1 Function of Keys

Keys Function

Selection of matrix fields

Selection of vertical matrix position

Selection of horizontal matrix position

and Return to V0H0

Inputting Parameter

or Activates the selected matrix position. Digit is flashing.

Increases the displayed parameter

Decreases the displayed parameter

and Resets the recent input value to the original value, if it is notconfirmed with V or H key yet.

Confirmation of input

or Accepts the currently displayed parameter and moves to thenext matrix position

Matrix interlocking / unlocking (see also Section 5.11)

and Matrix interlocking, 9999 appears in V9H9

and Matrix unlocking, 333 appears in V9H9


12/39

NUS

Page 12

5.3. Setup Overview

Alignment

Linearization

Volume measurein linearcontainer

Semi-automatic

thru >Liters out 5/32 (4mm)

4: Conveyer allocation

ResetWith a Reset, most adjustments for the device are canceled and the default factorysettings apply.The following parameters do not change to factory default:

All inputs for Linearization (V2H0 V2H3)

the tag number (VAH0) and the measuring units (V8H2)


14/39

NUS

Page 14

Attention: V8H2 Measuring Units

The measuring units are not changed by a Reset.

It may only be changed manually. If the measuring units are changed later, all ofthe changed following inputs must be repeated.

Measurement Display:V0H0: Filling height in %V0H8: Distance in m / ftV0H9: Filling height in m / ft

Please Note! All following inputs (linearization, current output and fixed targetfadeout) must be entered in the users selected measuring unit.

NOTE: THE FEATURES INDICATED IN THE FOLLOWING SECTIONS(SECTIONS 5.6 THROUGH 5.10) ARE SPECIAL FEATURES AND ARE

NECESSARY ONLY FOR SPECIAL TANK CONFIGURATIONS AND / ORAPPLICATIONS WITH UNIQUE OPERATING CONDITIONS.

5.6. Linearization

5.6.1. Input of a Linearization Curve

The input of the linearization curve must take place in the users selectedmeasuring units.

Prior to entering a linearization curve, it is recommended that the linearizationtable is cleared to eliminate previously entered points with: V2H0 = 4.

A linearization curve can consist of maximum of 11 points. The linearization points must always be entered such that the volume unitsincrease for each linearization point as the tank level rises.

Activate the linearization curve after inputting all value pairs with V2H0 = 1.

If desired, the points of linearization curve may be modified individually by simplyentering a new value pair. The corrected curve must also increase in volume fromthe previous point.


15/39

NUS

Page 15

5.6.2. Adjustment of Current Output

After linearization, the output current follows the linearization curve to provide anaccurate volume measurement.

Note: Errors and Warnings in V9H0During the input of a linearization curve, the current output is subjected to an errorand the unit stops measuring any further. The following linearization related error-indications may appear.

E605: Display during the input of linearization curve. This error-indicationdisappears if the linearization curve is activated.

E602: The linearization curve is not indicating a continuously rising volume level.In V2H1, the number of the last entered correct value pair appears automatically.Enter the new value in the next line of the table in V2H2 and V2H3.

E604: The linearization curve consists of less than two value pairs. Supplementyour inputs with additional value pairs.

Measurement display after linearization:V0H0: Display in user-defined unitsV0H8: Distance in m / ftV0H9: Filling height in m / ft

5.6.3. Four Possibilities

" Volume measurement with linear relation; filling state-volume: V2H0 = 5

BD

Filling ht.

Full=Ve.g.2000 l

100%

Volume

Empty

The Tank Full volume is input at V2H5. A linear level / volume relationship isassumed at all other points.

Note! The volume in V2H5 is automatically assigned to the filling height at thetank full point.


16/39

NUS

Page 16

Table 5.4 Volume Measurement with Linear Relation

# VH Input Text

1 V2H0 4 H Delete

2 V2H0 5 H Linear3 V2H5 e.g. 2000 H Volume (Full Scale)

V 100% (e.g. 2000 l)

# Inputting a Linearization Table for a Container through VolumeAddition

BDFilling ht.

Full e.g. 5000 l

Empty1

2

3

4

5

6

74 m

The container is filled or emptied in a controlled manner, measuring the volumeadded at each linearization point.

The known total volume is entered at each point.

The level is automatically registered.Table 5.5 Linearization Through Volume Addition

# VH Inputs Text

1 V2H0 4 H Delete

2 V2H0 3 H Measuring contents in liters

3 V2H1 7 H Line number

4 V2H2 e.g. 4.000 m H Level5 V2H3 e.g. 5000 l H Volume input

6 V2H1 6 H Line number

After entering all values

V2H0 1 H Activate table


17/39

NUS

Page 17

$ Manual Input of a Linearization Table

Full

Empty e.g. 100 l

BD

0.4 m

For a linearization curve, a maximum of 11 pairs of level and volume can be entered.

Table 5.6 Manual Input of a Linearization Table# VH Input Text

1 V2H0 4 H Delete

2 V2H0 2 H Manually

3 V2H1 1 H Line No.

4 V2H2 e.g. 0. 400 m H Level input

5 V2H3 e.g. 100.0 l H Volume input

6 V2H1 2 H Line No.After inputting all value pairs

V2H0 1 H Activate table

% Special Case: Horizontally Mounted Cylindrical Tank

Using the following example, with the diameter = 1, the linearization curve for anycylindrical and horizontally mounted tank, can be calculated.

100

%%

VVV

total

level

=

BD

80%

70%

50%

60%

40%

30%

20%

10%

90%

100%

0%


18/39

NUS

Page 18

Table 5.7 Horizontally Mounted Cylindrical Tank

Line No.V2H1

Level V2H2 Volume V2H3

% User's value % User's value

1 0 0

2 10 5.20

3 20 14.24

4 30 25.23

5 40 37.35

6 50 50.00

7 60 62.64

8 70 74.77

9 80 85.76

10 90 94.79

11 100 100

5.7. Current Output Adjustment

5.7.1. Instructions for current output:

The current output (zero and span) may be adjusted to a percentage of the empty

and full distances entered previously in V0H1 and V0H2 (see Table 5.3). The current output may be inverted (if desired), so that the value in V0H5 is largerthan value in V0H6. That means on increasing measured values, the current signaldecreases.

Integration time (V0H4): The integration time causes damping of current outputand thus a delayed measured value on LCD Display. With a turbulent liquid, a stabledisplay can be achieved by means of the integration time (0 - 255 sec)

Output behavior on error (V0H7)

4- wire 2- wire

10 % 2.4 mA 3.8 mA

+110 % 22 mA 22 mA

4 mA Threshold: This threshold ensures that the current value will not fall short of4 mA during operation.


19/39

NUS

Page 19

5.7.2. Errors and Warnings in V9H0

E620: The current output is outside of the adjusted range (smaller than 3.8 mA, greaterthan 20.5 mA). Check the setting and the adjustments of the current output.

5.7.3. Two possibilities of the adjustment

1. Current output: linearThe current varies from 4 to 20mA as level changes.

Table 5.8 Current Output Adjustment (Linear)

# VH Inputs Text

1 V8H1 e.g. 0 H Current output0: linear 4 20 mA1: linear 4 20 mA with 4 mA threshold

2 V0H5 e.g. 10 % H Level for 4 mA

3 V0H6 z. B. 90 % H Level for 20 mA

4 V0H4 e.g. 20 s H Integration time

5 V0H7 e.g. 1 H Output on disturbance0: 10 %1:+ 110 %2: HOLD (retain last measured value)

BD

Filling ht.

V0H6 90%

V0H5 10%

20 mA4 mA


20/39

NUS

Page 20

2. Current Output: DigitalThe current value of 4 and 20 mA (or 8 and 16 mA) for switching and automatic level.

Table 5.9 Current Output Adjustment (Digital)

# VH Input Text1 V8H1 e.g. 2 H Current output

2: digital 4/ 20 mA3: digital 8/ 16 mA

2 V0H5 e.g. 10 % H Switch point min. 4 or 8 mA

3 V0H6 e.g. 90 % H Switch point max. 20 or 16 mA

4 V0H4 z. B. 10 s H Integration time

5 V0H7 e.g. 1 H Output on error:0: 10 %1: +110 %

2: HOLD (retain last measured value)

BD

Filling ht.

20 mA

V0H6 90%

V0H5 10%

4 mA

8 mA 16 mA


21/39

NUS

Page 21

5.8. Echo Quality

The echo quality of ultrasonic signal is given out in V3H2 in steps from 1 10 anddisplayed in matrix fields V0H8 and V0H9 via a bargraph display.

Bad echo quality through: Steam, dust, high temperature, foam, larger measuringdistance, etc.

No impairment of the echo with smooth liquid surface:

5.8.1. Place the sensor

Use the echo quality display (via bargraph) during mounting process, in order to find thecorrect mounting location.

Fixed mountings, which look too far into the detection range of the sensor, reflect theecho. If an unwanted signal is detected e.g. during mounting, another location can beselected or the noise-echo may be suppressed.


22/39

NUS

Page 22

5.8.2. Noise Echo Suppression

The noise echo suppression feature is useful if, instead of the actual level, obstructionsinside the container are detected. Up to three, noise echo signals can be suppressed. Thesuppression should be attempted when the tank is empty or as near empty as possible.

1.2 m

3 m

Echo

max. 3Noise-echo

Distance

Good echo

Step 1

Step 2

Table 5.10

# VH Input Text

1 V0H8 Indicates the distance to the false echo.

Wait until a stable value is displayed.

2 V3H0 e.g. 3.000 H Known distance of the medium'ssurface level (e.g. 3 m)

Note for 2- wire: Wait for approx. 40 s

3 V0H8 Meas. distance approx. 3 m? YES Fixed target is fadedout NO Repeat procedure


23/39

NUS

Page 23

5.9. Additional Input Possibilities

5.9.1. Temperature

The current temperature at the sensor is shown in V3H5.

Temperature upper-limitExceeding of the upper temperature limit of 80C will be indicated in field V3H5 by storingthe value above 80C.

5.9.2. Echo loss - delay time

The input of a delay time in V8H3 delays an alarm due to short term echo loss (e.g. byfoam). For normal level measurements, the delay time should not be selected smallerthan 30 s.

# VH Input Text

1 V8H3 e.g. 80 H

The measuring point reacts only after 80 s on the echoloss and switches the alarm E 641.

Factory setting: 60 sSelectable: 0 255 s


24/39

NUS

Page 24

5.9.3. Actual Level:

A false level reading in V0H9 (e.g. through temperature changes or material stratification)can be corrected by inputting the actual level in V3H1. The input of an actual levelautomatically corrects the alignment.

5.9.4. First echo factor

In containers with strongly rounded off covers (arched covers) double echoes may thegenerated, which result in the display of a much lower level. By setting the first echofactor to maximum, double echoes can be switched off.

# VH Input Text

1 V3H4 2 H First echo factor maximum

5.10. Simulation and Function Test

Simulation offers the possibility to simulate and test the functions of the unit.Error and Warning in V9H0

E613: Display during the duration of simulation. After termination of thesimulation, return to the normal measuring operation.Simulation off: V9H6: 0

In case of a power failure, the device returns automatically into normal measuringoperation!

Table 5.11 Simulation and Function Test

Height Simulation

# VH Input Text

1 V9H6 1 H Simulation height

2 V9H7 e.g. 2.000 H Simulated height (e.g. 2 m)

3 V9H8V0H0

Display current (also appears on bargraph)

Display height or level or volume

4 V9H6 0 H Simulation off

Current Simulation

# VH Input Text1 V9H6 3 H Simulation current

2 V9H7 e.g. 14 H Simulated current (e.g. 14 mA)

3 V9H8 Display current (also appears on bargraph)



25/39

NUS

Page 25

Volume Simulation

# VH Inputs Text

1 V9H6 2 H Simulation of Volume

2 V9H7 e.g. 100.0 H Simulated Volume (e.g. 100 l)3 V9H8

V0H0Display current (also appears on bargraph)

Display volume (if no linearization curve is entered,volume corresponds to filling level.)


5.11. Interlocking

After inputting all the parameters, the matrix can be locked.

" Interlocking the matrix by entering a three-digit code number of any valueother than 333 in V9H9:

# VH Input Text

1 V9H9 e.g. 332 H Interlock

2 In V9H9 appears 332. All matrix fields other than V9H9 areblocked.

Unlocking the matrix by entering the value 333 in V9H9:

# VH Input Text

1 V9H9 333 H Unlock

2 In V9H9 appears 333. The blocking of matrix fields is removed.


26/39

NUS

Page 26

# Interlocking via the keypad

P = Protect

+- HV

F = Free

+- HV

Note! By interlocking via the keypad, the programming through the keypad ordisplay is blocked. Matrix positions can be displayed but cannot be accessed.Removal of blocking is possible only through the keypad.


27/39

NUS

Page 27

5.12. Adjustment of the LED Display (when equipped)

Note! Before the adjustment of the LED display, the analog output must beadjusted first. In case of subsequent programming modifications that would

affect the output signal, it is likely that the display would need to bereadjusted. If the current output is not used, the output must be jumperedwith a 250-ohm resistor to allow for display operation.

Loosen and remove the four cross-slotted screws then remove the display cover plate.

Key 1 Key 2

Key 1: Downward and selection of MenuKey 2: Upward and selection of Menu

Keys 1+2 : Enter menu selection for adjustment or quit adjustment mode

5.12.1. Decimal point

Press key 2 until: " dP " is displayed.Press key 1+2: Enter menu for adjustment: " ---.- "Press key 2 or 1: for up and down: " --.-- "Press key 1+2: Quit adjustment mode and return to Menu " dP "

5.12.2. Zero point (value to be displayed at 4 mA)

Press key 2 until: " ZP 4 " is displayed.Press key 1+2: Enter menu for adjustment; " 0.00 e.g.: (0.0 Liters)Press key 2 or 1: for up and downPress key 1+2: Quit the adjustment mode and return to Menu " ZP 4 "

5.12.3. End point (value to be displayed at 20 mA)

Press key 2 until: " EP20 is displayed.Press key 1+2: Enter menu for adjustment: " 0.00 "Press key 2 or 1: for up and down: " 60.00 " e.g.: (60 Liters)Press key 1+2: Quit the adjustment mode and return to Menu "EP20"


28/39

NUS

Page 28

5.12.4. Damping

Press key 2 until: " FILt " is displayed.Press key 1+2: Enter menu for adjustment: " 0.3 "

(min. = 0.3 sec.; max. = 20.0 sec.)

Press key 2 or 1: for up and down: " 1.5 " (1.5 sec.)Press key 1+2: Quit the adjustment mode and return to Menu " FILt "

5.12.5. Range Exceeded(indication if below 4 mA or above 20 mA)

Indicates " HI " if the upper limit or " LO " if the lower limit is exceededPress key B until: " HILO " is displayed.Press key 1+2: Enter menu for adjustment: " oFF " = indication inactivePress key 2 or 1: for up and down: " on " = indication activePress key 1+2: Quit the adjustment mode and return to Menu " HILO "

Indication:" HI "= Current exceeds the upper limit of the measuring range (I > 20 mA)," LO "= Current is below the lower limit of the measuring range (I < 4 mA)

Caution: When the "HILO" indication is inactive, exceeding the upper limit of the displayrange (-1999...+9999) results in the error code "Er06" being displayed.

5.12.6. Return to Measuring Mode

Depending upon the selected menu point, press Key 1 or 2 from one to eight times.


29/39

NUS

Page 29

6. Errors and Warnings

6.1. Diagnostics and Error Elimination

The electronics differentiate between an error and warning during operation.2-wire:

Electronics detect an error

bargraph flashes within the digital display current output takes the selected value ( 10 % = 3.8 mA, +110 %, HOLD)

an error-code in V9H0 is given out

Electronics detect a warning

unit continues to measure


4-wire:Electronics detect an error

red LED lights up

bargraph flashes within the digital display

current output takes the selected value ( 10 % = 2.4 mA, +110 %, HOLD)

an error-code in V9H0 is given outElectronics detect a warning

red LED flashes

unit continues to measure



30/39

NUS

Page 30

6.2. Error Codes

Code Type Cause and Elimination

E 101 Error Checksum error EEPROM/ FRAM call Kobold

E 102 Warning Checksum error EEPROM/ FRAM call Kobold

E 103 Warning Initialization begins. If error persists, initialization cannot be started.

E 106 Error Download in progress Wait, until the process is complete.

E 110E 121

Error Execute Reset. If error persists, electronic device error call Kobold

E 116 Error Error during Download Press Reset, or start a new Download with correcteddata.

E 125 Error Sensor failure Check sensor connection. If error persists, call Kobold

E 261 Error Error in temperature sensor (interruption) call Kobold

E 501 Error Sensor electronics stops detection call Kobold

E 602 Warning Linearization curve does not rise continuously Check with manuallinearization curve. Does the volume increase with the filling height?

E 604 Warning Linearization curve consists of less than 2 points Check manual linearizationcurve and provide with additional points.

E 605 Error Linearization table not available appears during input of linearization curve.Activate all points after inputting linearization curve.

E 613 Warning Simulation On After running simulation, switch to normal measuringoperation. Simulation Off: V9H6: 0

E 620 Warning Current out of nominal range Check alignment and adjustments of currentoutput.

E 641 Error No echo to be evaluated Short time echo loss e.g. due to foam or during start up. Check alignment and operating voltage.If the error persists, call Kobold

E 661 Warning Temperature on sensor too high (more than 80 C) Check Measuringconditions.


31/39

NUS

Page 31

7. Dimensions


32/39

NUS

Page 32

8. Error Analysis

Error Analog output Possible cause Rem

Measured value jumps

sporadically on constantlevel and turbulent liquidsurface or if the stirringfans run.

20 mA

occurs

expected

4 mA t

Signal is affected by

turbulent liquidsurface or stirringfans?

Incre

Whileran

Relo

ChooV0

With constant level, themeasured value jumpsto a lower value orremains too lowconstantly.

20 mA

occurs

expected

4 mA t

Multiple echoes? Choo

ChooV3


33/39

NUS

Page 33

Error Analog output Possible causes Remedy

Digit-segmentflashes

Reaction of current output depends uponadjustment in V0H7V0H7= 0 10 % 2.4 mA or

3.8 mAV0H7= 1 110 % 22 mAV0H7= 2 HOLD last value

is retained

Error code in V9H0

E641 in V9H0 Echo tooweak or foam on surface

Which error Proceeding

Check sens

Adjust the s

Measured valuein V0H0 too low

D m/ft (V0H8)

20 mA

occurs

expected

4 mA t

Distance D in V0H8 toolarge?

Linearization wrong?

Current output wrong?

Multiple echGas-accumuCheck sensAdjust the s

Enter a new

Check valueinput new va

Measured valuein V0H0 too large

D m/ft (V0H8)

20 mA

occurs

expected

4 mA t

Distance D in V0H8 toosmall?

Linearization wrong?

Current output wrong?

Noisy installCheck standCheck sensAdjust the sSelect paramExecute fals

Enter a new

Check value

input new va


34/39

NUS

Page 34

9. V-H Setup Matrix

H0 H1 H2 H3 H4 H5 H6 H

Basic-settingsV0

Meas. value

User's unit

Adjustment

Empty

m/ft

Adjustment

Full

m/ft

Application0: Liquid1: Quick change2: Arched cover

3: Rough solids4: Conveyerbelt.

Integration time0 255 s

Default: 3 s

Seconds

Value for 4 mADefault: 0 %Switching pointfor

4 mA8 mA

Value for 20 mADefault: 100 %Switching pointfor

20 mA16 mA

Cw0

m

m12

V1

LinearizationV2

Linearization0: Height1: Tab.Activate2: manualinput3: volumetric4: delete5: linear

Linearization-tableline No.

Linearization-tableFilling height

m/ft

Linearization -tableVolume

User's unit

Volumefull-scale value

Default: 100.0

User's unit

ExtendedsettingsV3

False echofade out

Default:0.000

Actual level:

Default: 0.000

Echo-quality0 10

First echo factor0: none1: middle2: max.

Temperature

C

V4 V7

Op. Param.V8

Current output0: linear4 20mA1: linear with4mA threshold2: digit. 4/ 20mA3: digit. 8/ 16mA

m/ ftSwitch-over0: m1: ft

Echo-losstime-delay0 255 sDefault: 60 s

Seconds

Service/Simulate V9

Error statuscurrent error

Error statuslast recoverederror

Sensor /electronicsdetection

Unit andSoftwaredetection

Reset 333 Simulation0: Current1: Height2: Volume3: Current

S

Display field Input field Factory-set values in b


35/39

NUS

Page 35

10. Quick Meter Setup for Normal Applications: Overview

Reset1. Reset unit V9H5 Input: 3332. Measuring unit V8H2

Input: 0: m 1: ft3. Align Empty V0H1

Input: E (m/ ft)4. Align Full V0H2

Input: F (m/ ft)5. Application V0H3 Input: (0 4)

O: Liquid

1: Quick level-change

2: Dome cover

3: Bulk solids

4: Conveyer-beltallowance


36/39

NUS

Page 36

This page intentionally left blank.


37/39

NUS

Page 37

CAUTION

PLEASE READ THE FOLLOWING WARNINGS BEFOREATTEMPTING INSTALLATION OF YOUR NEW DEVICE. FAILURE

TO HEED THE INFORMATION HEREIN MAY RESULT INEQUIPMENT FAILURE AND POSSIBLE SUBSEQUENT

PERSONAL INJURY.


38/39

NUS

Page 38

This page intentionally left blank.


39/39

NUS

User's Responsibility for Safety: KOBOLD manufactures a wide range ofprocess sensors and technologies. While each of these technologies aredesigned to operate in a wide variety of applications, it is the user'sresponsibility to select a technology that is appropriate for the application, toinstall it properly, to perform tests of the installed system, and to maintain all

components. The failure to do so could result in property damage or seriousinjury.

Wiring and Electrical: Section 2.0, Specifications and Section 4.0, ElectricalConnections, provide the voltage and current limitations and the wiring for thevarious sensor types. The sensor electrical ratings should never beexceeded. Electrical wiring of the sensor should be performed in accordancewith all applicable national, state and local codes.

Operating Temperature: Section 2.0, Specifications, provides the operatingtemperature limits for each model. Operation outside these limitations will

cause damage to the unit and can potentially cause personal injury.

Material Compatibility: Section 2.0, Specifications, provides the materials ofconstruction for the display/controller. Make sure that the model that you haveselected is chemically compatible with its operating environment. While themeter is both liquid and spray resistant when installed properly, it is notdesigned to be immersed.

Flammable, Explosive and Hazardous Applications: The NUS series isnot an intrinsically safe or explosion-proof design. They should not be used ininstallations in which an intrinsically safe or explosion-proof design is

required.

Make a Fail-safe System: Design a fail-safe system that accommodates thepossibility of device or power failure. In critical applications, KOBOLDrecommends the use of redundant backup systems and alarms in addition tothe primary system.

Documents

NUS Datasheet Man