Leak Detector Operations Manual - Azbil North America · Leak Detector Operations Manual ... Power Six AAA nickel-metal hydride (Ni-MH) ... consult the manufacturer’s documentation

MS2-AAM211-2004

PlantWalker Series Portable Operations Support Tool

Leak Detector

Operations Manual

この資料は社内用です

• Advanced-PS is a trademark of Azbil Corporation.

• APS5000 is an initial model number of Advanced-PS.

• Windows are a registered trademark of Microsoft Corporation USA and other countries.

• All other brand and product names shown are trademark of their respective owners.

Copyright, Notices and Trademarks

© 2009-2013 Azbil Corporation All Rights Reserved.

While this information is presented in good faith and believed to be accurate, Azbil Corporation

disclaims the implied warranties of merchantability and fitness for a particular purpose and

makes no express warranties except as may be stated in its written agreement with and for its

customer.

In no event is Azbil Corporation liable to anyone for any indirect, special or consequential

damages. The information and specifications in this document are subject to change without

notice.


i

For Safe Use of This Product

Read thoroughly the general notes on safe maintenance of this product noted in the operations

manual.

Note that the following general notes must be observed for the safe use of this product. Azbil

Corporation shall not be held liable for improper customer use of this product.

CAUTION [General Notes on Use]

• Do not operate with equipment that may endanger the lives of others.

• Avoid using this product for toxic gas or explosive gas leak tests.

• This device is a simple ultrasonic detector. Contact azbil Group for uses other than those intended

by the manufacturer.

• This device cannot be prescribed for specific accuracy of the measurement target. Use this product

for rough estimates in the presence of ultrasound or to check the intensity of air leaks.

• Note that this device does not have a waterproof or splash-proof structure.

• Avoid use in corrosive environments.

• Do not disassemble this device. Doing so will result in device failures.

• This device uses precision components. Dropping, etc. will result in device failure.

• The ultrasonic sensor used in this device is a precision component. Do not touch. Take care not to

damage it when storing.

• Ensure that small stuff does not come into the headphone jack, serial communications jack, etc.

• Do not connect the headphone jack to any device other than the headphones.

• Hearing may be damaged if the volume is raised too high when the headphones are used. Use at the

lowest recognizable volume.

• Do not press the <PWR> button (Power ON/OFF button) when not in use. (Batteries will run out)

• The general notes in this manual are not all-encompassing. The customer is responsible for the safe

and appropriate use of this device.


ii

CAUTION [Ni-MH battery]

• Do not use the other type of batteries than the Ni-MH type.

• Remove the batteries from the battery case and store when not in use for extended periods of time.

• Do not use new and old batteries together.

• Make sure the polarity of the batteries when to place them into the battery case.

• Do not store or bring the batteries and battery case with the metallic stuffs together.

• The battery case might be damaged by a fall and a strong shock. Handle it with care.

• Do not make the electrodes of the batteries or battery case short-circuited.

• Do not use or store in the condition of the high temperature and humidity.

• Clean the terminal and the electrode regularly.

• Stop to use in case of the leak and over-heated found on the batteries.

• Read carefully the manual attached to the battery and the charger.


v

Table of Contents

Table of Contents

Introduction ............................................................................... 1

Section 1. Overview ................................................................. 31.1 Functions Overview ................................................................................. 4

Section 2. Specifications ........................................................ 52.1 Main unit specifications ........................................................................... 5

2.2 Model Numbers ........................................................................................ 5

2.3 Dimensions ............................................................................................... 6

Section 3. Physical Descriptions & Functions ...................... 73.1 Physical Descriptions ............................................................................... 7

3.2 Indicator/Operations Panel ....................................................................... 8

3.3 Button Functions ...................................................................................... 8

3.4 Indicator functions ................................................................................... 93.4.1 dB value indicator (Data/ID LED) ................................................................. 9

3.4.2 Bar Graph Indicator (Level LED) .................................................................. 9

3.4.3 Leak volume indicator (Data/ID LED) ........................................................... 9

3.5 Headphone output .................................................................................... 11

3.6 Auto Power OFF ...................................................................................... 11

3.7 Battery Low.............................................................................................. 11

Section 4. Measuring Method ................................................. 134.1 Measuring preparations ............................................................................ 13

4.1.1 Battery pack installation ................................................................................. 13

4.1.2 Sound collecting parabolic hood removal ...................................................... 14

4.1.3 Sound collecting parabolic hood installation .................................................. 15

4.1.4 Sound collecting probe installation ................................................................ 17

4.2 Measuring method .................................................................................... 184.2.1 Operations mode ............................................................................................. 18

4.2.2 Measurement (Measuring Mode) ................................................................... 19

4.2.3 Hints for Measuring ........................................................................................ 21

4.2.4 Data storage (ID mode) .................................................................................. 23


vi

Table of Contents

Section 5. PC Communications .............................................. 255.1 Communications specifications ............................................................... 25

5.2 Communications steps ............................................................................. 25

5.3 Data format .............................................................................................. 28

Section 6. Headphone Operations ......................................... 296.1 How to use ............................................................................................... 29

6.2 MDR-G82SL Operation ........................................................................... 30

6.3 MDR-NC20/MDR-G94NC Operation .................................................... 316.3.1 Preparations .................................................................................................... 31

6.3.2 Operation steps ............................................................................................... 32

6.4 Others ....................................................................................................... 33

Section 7. Maintenance ........................................................... 357.1 Handling the Ni-MH Rechargeable battery ............................................. 35

7.1.1 Use .................................................................................................................. 35

7.1.2 Notes on use .................................................................................................... 35

7.1.3 Warranty ......................................................................................................... 35

7.2 Troubleshooting ....................................................................................... 36

7.3 Error codes ............................................................................................... 37

Information on chemical substance contentsspecified by China RoHS .......................................................... 38


− 1 −

Introduction

This operations manual describes “Leak Detector II” portable ultrasonic detection tool

operations.

Caution Leak Detector II cannot be prescribed for specific accuracy of the measurementtarget. Use this product for rough estimates in the presence of ultrasound or tocheck the intensity of air leaks.

Caution Avoid using this product for toxic gas or explosive gas leak tests.

Introduction


− 2 −

Introduction

M E M OM E M O


− 3 −

Section 1. Overview

Leak Detector II is an ultrasonic detection tool with the following configuration.

• Sound collecting parabolic hood with high directivity sound collection characteristics .• The ultrasound sensor can be detached from the sound collecting parabolic hood,

enabling mounting of a sound collecting probe.• The Indicator/Operations panel is used for expressing detected signal intensity on a

bar graph and using numerical values, setting the signal amplification level &headphone volumeNOTE and to save data.

NOTE: 40 kHz ultrasound is detected by a sensor. This ultrasound is converted to

the audible sound and output from the headphone.

Caution This device is used for rough estimates of ultrasound intensity and air leak volume.Always use measurement results indicated numerically as rough estimates.

Figure 1-1. External View of Leak Detector II

Section 1. Overview


− 4 −

1.1 Functions Overview

• Detects ultrasound in the 40 kHz range• Can identify the direction of the ultrasound source using the directivity of the sound

collecting parabolic hood.• The ultrasound source can be pinpointed by attaching the sound collector probe.• Higher sensitivity ultrasonic detection is enabled with the sound collecting parabolic

hood effect.• The ultrasound intensity is indicated in double digit numerical values and expressed

on a 10-step LED bar graph.• The numerical value indicator enables selection of a dB value and leak volume level

indicator.• The sensor sensitivity and headphone volume enables 8-step adjustments to be

performed.• 500 measurement data points can be saved in the main unit and transferred to a PC.

Caution The dB values of the Leak Detector II may not be consistent with the soundpressure values measured with an general ultrasonic detector.This is due to theeffects of parabola directivity, sound collecting characteristics, built-in ultrasoundsensor frequency characteristics and directivity of the Leak Detector II.

Caution The ultrasound intensity is converted into an air leak volume that is displayed (0.1to 1.9 Nm3/h range). Ultrasound level and leak volume level conversion are basedon specific characteristics, which may not agree with the actual leak volume. Theleak volume indicator of the Leak Detector II is to be used for rough estimates only.

Sensor Amp

Operations Panel

• Gain Adjustment

• Output Adjustment

To Headphone

Detected Sound Generation Circuit

Indicator Panel(Numerical Level Values)

Battery

Level Detection Circuit Sensor Amp

Serial I/FNonvolatile Memory (To PC)

Sound collecting parabolic hood Ultrasonic Sensor

Figure 1-2. Leak Detector II Function Block Diagram

Section 1. Overview


− 5 −

Section 2. Specifications

2.1 Main unit specifications

Table 2-1. Specifications

-10 to 40 , up to 85% RH (without condensation)

0 to 40 , up to 85% RH (without condensation)

Received Ultrasound 40 kHz range

Auto Power OFF Approx. 15 minutes

Indicator 10-step LED, double digit values, 19-step leak volume level

Output

Data Storage

Communications Serial communications (9P D-sub) 9600 bps

Power Six AAA nickel-metal hydride (Ni-MH) rechargeable battery

Weight Approx. 1.3 kg

Item Specifications

C

Audible sound converted from received ultrasound via headphone.Variable output volume. Ultrasound level, leak volume level (in leak mode), and sensitivity setting for 500 data points.

Ambient Temperature & Humidity RangeStorage Temperature & Humidity Range

C

NOTE1: Ultrasound detection performance varies depending on conditions.Conduct preliminary experiments before using the detector.

NOTE2: For the included rechargeable batteries and charger, consult the manufacturer’s documentation.Azbil Corporation does not provide troubleshooting or other services for these items.

2.2 Model Numbers

Table 2-2. Main Units

Product Name Remarks

AAM-PWFLD003E Leak Detector II Main unit, sound-collecting parabolic hood, strap, andheadphones

Model Number

Table 2-3. Options

Product Name Remarks

AAM-PWLDBX01 Storage case 34(H) 42(W) 26.5(D) cm

AAM-PWLDPB01 Sound-collecting probe Use without the sound-collecting parabolic hood

Model Number

2.1 Main unit specifications


− 6 −

2.3 Dimensions

72 82

202

282

31020

4.5

1

Figure 2-1. Leak Detector II

6812

121

72

934.5

26

81

Figure 2-2. Leak Detector II (Detached Use)

Section 2. Specifications


− 7 −

Section 3. Physical Descriptions & Functions

3.1 Physical Descriptions

Sensor Unit

Indicator/Operations Panel

Battery Pack (Built-in)

Grip

Indicator/ Operations Panel

Serial Communications Port

Sensor Unit

Sound Collecting Parabolic Hood

Headphone Jack

Figure 3-1. Main Unit Parts

3.1 Physical Descriptions


− 8 −

3.2 Indicator/Operations Panel

Vol. Button (Volume Adjustment)

PWR Button(Power)

Data/ID LED

dB Value, Leak VolumeID Number Display

Status LED ID : Lights at ID ModeVol. : Lights at Volume Adjustment ModeLeak : Lights at Leak Volume DisplayHold : Lights at Data HoldBatt : Blinks at Battery-Low

Serial communications port

Level LED

Displays ultrasound strength

Gain/Volume LED

ID Button

(High)/ (Low)Button

Hold/Data Disp Button

Store Button(Data Storage)

Figure 3-2. Indicator/Operations Panel

3.3 Button Functions

Table 3-1. Button Functions

Button Measurement Mode Volume Adjustment Mode ID Mode

<PWR>

< > Raises sensor sensitivity NOTE1 Raises volume Increment of ID number (+1)

< > Lowers sensor sensitivity NOTE1 Lowers volume Decrement of ID number (-1)

<Store>Saves sound pressurevalue/leak volume and sensorsensitivity

<Hold/Data Disp> Data hold or release hold NOTE2 DisabledDisplays saved data &sensitivity (while button ispressed)

<ID>+<Vol.>

<Vol.>NOTE3 Changes to VolumeAdjustment ModeNOTE1

Changes to MeasurementMode

Shifts ID number digits

<ID> Changes to ID Mode Changes to MeasurementMode

Changes to MeasurementMode

NOTE1: Only enabled when data hold is not set.NOTE2: Repeats "Data hold release data hold data hold".NOTE3: <Vol.> button releases error in error code display.NOTE4: <Store> button operations at Volume Adjustment Mode and ID Mode cause errors.NOTE5: Press at least 2 seconds for Power OFF.

Power ON/OFFNOTE5

Error code display NOTE4

Switches to sound pressure value/leak value display NOTE1



− 9 −

3.4 Indicator functions

3.4.1 dB value indicator (Data/ID LED)

The dB value shows the same value as the input value regardless of “Sensor sensitivity” (1 to 8).

(Absolute value indicator)

The dB indicator value becomes “ _ _ _

” when the “sensor sensitivity” for input sound is too high,

thus the measurement value exceeds the upper limit and is beyond the acceptable range. The dB

indicator value, in contrast, becomes “ _ _ _ ” when in the acceptable range if the measurement

value drops below the lower limit of the range.

Caution ±1 dB error exists when the sensor sensitivity changes

Caution The numerical value may not be indicated when under or over the acceptable rangedue to the gain of ‘sensor sensitivity’ and/or input sound.

Caution The dB values of the Leak Detector II may not be consistent with the soundpressure values measured with an general ultrasonic detector. This is due to theeffects of parabola directivity, sound collecting characteristics, the built-inultrasonic sensor frequency characteristics and directivity of the Leak Detector II.

3.4.2 Bar Graph Indicator (Level LED)

The number of the “Level LED” lights ON fluctuates according to the intensity of the input

sound, which is expressed visually. The “sensor sensitivity” (1 to 8) during the current

measurement is also a rough estimate to gauge correctness.

The number of the “Level LED” lights ON changes according to “sensor sensitivity” (1 to 8)

even where identical input sound exists. (Relative value indicator)

3.4.3 Leak volume indicator (Data/ID LED)

The ultrasound intensity is converted to air leakage volume (0.1 to 1.9 Nm3/h range) and

displayed. The conversion of the ultrasonic level and leak volume level are based on data

under specific conditions and may not necessarily match actual leak volumes.

The ultrasonic intensity generated by leakage is affected by leak volume as well as

atmospheric pressure, density, temperature & humidity, surrounding environment, shape of

hole and direction. Use the leak volume indicator for Leak Detector II for rough estimates

only. The leak volume conversion built into the Leak Detector II is based on measurement data

under the following conditions.

3.4 Indicator functions


− 10 −

Flow Meter Volume Chamber

Pressure Reducing Valve

Compressor Air

Nozzle

Simulated Leak

Figure 3-3. Simulated Leak Test Device

Figure 3-4. Simulated Leak Nozzle

Table 3-2. Measurement Conditions

C

C

Anchor towards nozzle at 30 degree from nozzle front surface, 1.0 m apart, 1.0 m height (identical to nozzle position)

16Outside Air Temperature

Item Specifications

17.5

55%Blow Out Opening Humidity

Supply Pressure

Nozzle Piping Inside Diameter

Nozzle Hole Diameter

Nozzle Hole Depth

Nozzle Materials

Flow Meter

Measurement Position

Blow Out Opening Temperature

0.05 to 0.5 MPa

15.7 mm

1.0 mm

2.0 mm

Gun metal

Azbil Corporation CMS0500



− 11 −

3.5 Headphone output

The headphone output is useful for distinguishing sound level as well as differences in sound

quality. The Leak Detector II converts a 40 kHz ultrasound measured to a 1.5 kHz frequency

then outputs sound to the headphones. Eight (8) headphone output volume levels are available

for use when adjusting to the proper level.

Sound vanishes when measured at the smallest volume level (1).

Caution Ears may be injured by sudden, loud sounds. Gradually raise the volume for theLeak Detector II.

3.6 Auto Power OFF

Power automatically shuts OFF when left unoperated for 15 minutes.

3.7 Battery Low

The “Batt.” LED lights OFF when battery power is sufficient. The “Batt.” LED starts blinking

when battery power is low, and the Leak Detector II automatically shuts OFF when

inoperable. The sensitivity, volume and ID numbers are also saved immediately before power

is automatically shut OFF.

Table 3-3. Battery Low and LED

Level Batt. LED Meaning Operations

Normal Lights OFF Battery has power

Low battery powerRecharge battery immediatelyNo batteryOperations cannot be continued

Stop

Warning

Stop -

Blinks (Lights ON time is long)Normal

3.5 Headphone output


− 12 −

M E M OM E M O



− 13 −

Section 4. Measuring Method

4.1 Measuring preparations

4.1.1 Battery pack installation

Step 1 Loosen the screw for the battery pack lid, remove the lid plate and take the batterycase out.

Battery Pack Lid Screw

Figure 4-1.

Step 2 Install the Ni-MH batteries (size AAA 6) into the battery case to the correctposition according to the “+” and “–” marks.

6

+ Mark

– Mark

Figure 4-2.

Step 3 Install the battery case into the sensor unit with the correct position to be able tocontact the terminals of the battery case and the sensor unit each other, then tightenthe screw of the battery pack lid. Confirm the battery case does not fall from thesensor unit.

(MAD

E IN

JAPA

N)

Terminal Terminal

Figure 4-3.



− 14 −

4.1.2 Sound collecting parabolic hood removal

Caution Do not shock the Leak Detector II main unit.The built-in sensor reacts to shock, which affects measurement values.

Caution Shut power OFF for the operations unit and sensor unit installation and removal.(Installation and removal while power is ON causes shocks that affectmeasurement values and device operations.)

Step 1 Lift indicator/operations panel edges ( mark).

Mark

Figure 4-4.

Step 2 Move the indicator/operations panel approx. 1cm forward while lifting the edges( mark).

Figure 4-5.



− 15 −

Step 3 Lift the indicator/operations panel unit upwards.

Figure 4-6.

Step 4 Pull the sensor unit out towards you.

Figure 4-7.

4.1.3 Sound collecting parabolic hood installation

Caution Do not shock the Leak Detector II main unit.The built-in sensor reacts to shock, which affects measurement values.

Caution Shut power OFF for the operations unit and sensor unit installation and removal. (Installation and removal while power is ON causes shocks that affectmeasurement values and device operations.)



− 16 −

Step 1 Press the sensor unit into the sound collecting parabolic hood. (Locks when pressed

to the end.)

Figure 4-8.

Step 2 Store the cable connecting the sensor unit in the indicator/operations panel in theupper part of the sound collecting parabolic hood.

Figure 4-9.

Step 3 Guide the indicator/operations panel anchoring protrusions to the mountinggrooves on the upper part of the sound collecting parabolic hood.

Figure 4-10.



− 17 −

Step 4 Close until the indicator/operations panel edges ( mark) lock.

Figure 4-11.

4.1.4 Sound collecting probe installation

Step 1 Detach the sensor unit from the sound collecting parabolic hood.

Step 2 Insert the sound collecting probe from the front side of the detached sensor unit.

Sound Collecting Probe Screw

Sensor Unit

Figure 4-12.

Step 3 Turn the probe to the position where it comes into contact with the sound collectingprobe, and screw it in.

Figure 4-13.



− 18 −

4.2 Measuring method

4.2.1 Operations mode

The operations mode and a summary of steps to change this are shown in Figure 4-14.

Measuring ModeVolume Adjustment Mode

ID Mode

• Measurement (dB value indicator)• Sensitivity Level Adjustment• Data Hold /Hold Release• Data Save

• Measurement (Leak volume indicator)• Sensitivity Level Adjustment• Data Hold /Hold Release• Data Save

• Measurement (dB value indicator)• Volume Level

• ID Number Adjustment• Saved Data Display (dB value indicator)

Measuring ModeVolume Adjustment Mode

ID Mode

• Measurement (Leak volume indicator)• Volume Level

• ID Number Adjustment• Saved Data Display (dB leak volume indicator)

<Vol.>Button

<ID>Button

<ID>Button

<V

ol.>

But

ton

+ <

ID>

But

ton

<V

ol.>

But

ton

+ <

ID>

But

ton

<V

ol.>

But

ton

+ <

ID>

But

ton

Only at Non-hold

<Vol.>Button

<ID>Button

Only at Non-hold

<ID>Button

Figure 4-14. Operations Mode

Table 4-1. Operations Mode and LED: LED Lights OFF: LED Lights ON

ID Vol. Leak

Measuring Mode

Volume Adjustment Mode

ID Mode

Measuring Mode

Volume Adjustment Mode

ID Mode

Leak Volume

Display Data ModeLED

dB Value



− 19 −

4.2.2 Measurement (Measuring Mode)

Data measurement is performed with the Measuring Mode. This mode measures the ultrasonic

intensity and displays these intensities using the double-digit “Data/ID” LED numerical

values, and displays the level using the “LEVEL”LED bar graph simultaneously. The

numerical value indicators show absolute values which are not related to the sensitivity level

settings while the level indicator using the LED bar graph shows relative values according to

the sensitivity level. The sensitivity level and volume level (headphone) can be set to eight (8)

respective levels, the values for which are displayed in the “Gain/Volume” LED.

1) Sensitivity level adjustment

Step 1 Check whether set to “Measuring Mode”. (“Vol.” LED, “ID” LED are all in thelights OFF state)

Step 2 Adjust sensitivity with the < >button(Raises sensitivity), < > button(Lowerssensitivity), so that input signals fall within the range and the numerical values aredisplayed in the ‘Data/ID’ LED. These are displayed as shown below.

• Range Over (For excess input) “ _ _ _

”(Upper bar)• Range Under (For insufficient input) “ _ _ _ ”(Lower bar)

The measurement accuracy is comparatively better when “Level” LED is shown inthe middle (4-7 LEDs light ON, orange color). Adjust the “Measuring SensitivityLevel” (1 to 8) and ensure that measurements are performed with this number oflights ON.

2) Display mode selection

Step 1 Press the <Vol.>button and <ID> button simultaneously then select the data type(dB value, leak volume) to be displayed. The “Leak” LED lights ON for leakvolume indicator.

3) Saving measurement data

Step 1 Check whether Measuring Mode is set.

Step 2 Press the <ID> button to change to ID Mode. (“ID” LED lights ON)

Step 3 Select target ID. (See “4.2.4 ID Mode”)

Step 4 Press the <ID> button to change to Measurement Mode. (“ID” LED lights OFF)

Step 5 Turn the parabola towards target and start measurement.

Step 6 Press the <Hold/Data Disp> button then set the numerical values to be saved.(“Hold” LED lights ON)

dB values and leak volume data will not be saved at this time. Press the <Hold/DataDisp> button again to release data settings and restart measurement.



− 20 −

Step 7 Press the <Store> button to save sensitivity levels and dB values/leak values. (Pressthe <Vol.> button and the <ID> button simultaneously for dB value indicator andleak voltage indicator mode switching.)

The saved data and ID numbers are displayed in one (1) second intervals at thistime. Then, the ID number is automatically incremented to the next number and thenext measurement starts. Hold is automatically released when the numerical valuesare set with data hold.

Caution Errors occur when the <Store> button is pressed to save input dB values outsidethe set range (excessive input, insufficient input). Press the <Vol.> button toremove the error, readjust the sensitivity, set so that the input signal falls within therange, then press the <Store> button to save data.

Caution Errors occur when the <Store> button is pressed at the volume adjustment mode(“Vol.” LED lights ON). Press <Vol.> button to remove the error.

4) Headphone volume level adjustments

Step 1 Press the <Vol.> to set to the volume adjustment mode.(“Vol.” LED lights ON)

Step 2 Adjust the volume with the < > button (Raises volume) and the < > button(Lowers volume).There are eight (8) volume levels. The current volume level is displayed in the“Gain/Volume” LED.

Caution Hearing may be damaged when the volume is set too high when usingheadphones. Use the headphones at the lowest recognizable volume.

Caution See “6. Headphone Operations” for headphone operations.

Caution It returns to Measuring Mode after 10 seconds when left in Volume AdjustmentMode.



− 21 −

4.2.3 Hints for Measuring

While this device uses to repeat directional searches on the source of the ultrasound, then

gradually concentrates on and identifies the area, the hands (touch), soapy water or another

method may have to be used to clarify against the other ultrasonic sources.

This device indicates 40 kHz ultrasound intensity via the LED display and headphones. It

reacts to other sources of sound outside of the leak when used where equipment that generates

this ultrasonic band are present.

Note the following when ultrasound is generated.

Ultrasound from vortexes generated by the swirling of air or liquid aroundsomething.Ex. • Air, steam and other leaks from gas piping

• Fluids, air and particularly orifices, corner stream traps flowing at highspeeds in piping

• Pneumatically-operated manufacturing equipment, automobiles,electrical, foodstuffs and other manufacturing equipment

• Air manifolds• Pneumatically-operated instrument systems, valve positioners, etc.• Steam turbines, etc.

(Main stop valve stem, steam control valve, rotor shaft gland parts)

Ultrasound generated when metals or other hard objects collide at high-speedEx. • Ball-bearing parts of pumps, motors and other rotating machinery

(The greater the damage, the greater the ultrasound generated)• Compressor cylinder valve vicinity, gland parts, etc.

The source of the ultrasound described above is present at many manufacturing sites. Adjust

the direction of the Leak Detector II and the sensitivity levels as shown in the following.

Step 1 Turn the sound-collecting parabolic hood to the possible ultrasonic source.

Step 2 Raise the sensitivity level or approach the measurement target when there is noresponse.

Or, lower the sensitivity level when picking up surrounding noise that leads to aresponse that is too strong (Input level LED is outside range) no matter what anglethe parabolic hood is turned towards.

Thus, it is important to keep the direction in which there is the strongest responsewhile lowering the sensitivity level when searching for the location of leaks. Adjustthe sensitivity level so that the difference in response appears most.



− 22 −

Caution Ultrasound goes straight forward and reflected off solid walls. Ultrasound may betransmitted from multiple directions when, for example, indoor and other soundsources exist near the wall.

WARNING Ensure that there is no high-pressure steam or other dangers present. Neverapproach high-pressure heated steam, as these are invisible to the naked eye.

It is difficult to detect leaks while air pressure manufacturing equipment is in operation.

Performing leak detection is recommended for equipment that is stopped and equipment not in

operation (actual manufacturing state). The presence of continuous or intermittent responses is

the point for detecting leaks while the adjacent equipments are in operation. Sounds

accompanying manufacturing equipment are intermittent and are certain to change. The Leak

Detector II detects continuous sounds for leaks in equipment that is stopped.

This device is focused on collecting sound at a certain distance under the background noises.

Thus, a response becomes more difficult where minute leaks (ex. Gas leaks from disposable

cigarette lighters) occur right next to the sensor. However, this device is extremely useful for

detecting leaks which is identified from afar by the sound collecting parabolic hood effect

(strong directivity and amplitude).



− 23 −

4.2.4 Data storage (ID mode)

Change the ID numbers, initialize and transfer saved data in ID Mode. This mode displays ID

numbers (500 measurement points from “000” to “499”) with the “Data/ID” LED. The ID

number is incremented automatically after saving the measurement data with the <Store>

button (returns to “000” after the final”499”).

In the ID mode, the “LEVEL” LED bar graph goes to light OFF without anything being

displayed to the “Gain/Volume” LED and does not emit sound from the headphones.

Caution An error code is displayed when the <Store> button is pressed in this mode. Pressthe <Vol.> button to remove this error.

1) Change ID number

Step 1 Change to ID Mode by pressing the <ID> button. (The “ID” LED lights ON and IDnumbers are displayed while the first digit blinks in the “DATA/ID” LED.)

Step 2 Select the ID number digit to be changed with the <Vol.> button. (The target to bechanged is shifted in the following order: “1st Digit” “2nd Digit” “3rdDigit” “1st Digit” each time the <Vol.> button is pressed.)

Step 3 Change the ID number with the < > button(Increase)and < >button(Decrease).

Caution The 1st and 2nd digits are “9” then “0”while the 3rd digit is “4” then “0”.

2) Displaying saved data

Step 1 Select ID number. See “Changing ID number” mentioned earlier for steps to select.

Step 2 Press the <Vol.> button and <ID> button simultaneously to select the data type tobe displayed (dB value, leak volume). The “Leak” LED lights ON at leak volumedisplay.

Step 3 Press the <Hold/Data Disp> button to display the saved dB value or leak volume.Data is displayed while the <Hold/Data Disp> button is pressed.



− 24 −

3) Deleting saved data

Delete saved data by initializing the Leak Detector II. Initialization returns the sensitivity level

and volume level to factory shipment settings also. (Sensitivity level: 6, Volume level: 7)

Step 1 Press the <PWR> button to shut power OFF.

Step 2 Press the <Vol.> button while pressing the <PWR> button to start.

“000” is displayed in “Data/ID” LED, which blinks twice when initialization iscompleted.



− 25 −

Section 5. PC Communications

The Leak Detector II can transfer data saved in the main unit to a PC via serial

communications. Use Windows OS standard hyper terminal or other terminal software at the

PC side. (These steps describe examples using Windows XP professional hyper terminal.)

5.1 Communications specifications

Table 5-1. Communications specifications

Item Specifications

Character Bit Number 8 bit

Stop Bit Number 1 bit

Parity Even

Baud Rate 9600 bps

Flow Control None

5.2 Communications steps

Step 1 Remove the indicator/operations panel of the Leak Detector II from the parabolic hood.

Step 2 Connect the PC COM port to the Leak Detector II with the serial cable.

Communications Port (9P D-sub)

Indicator/Operations Panel

Figure 5-1. Communications Port

5.1 Communications specifications


− 26 −

Step 3 Start the PC in the following order: [Start Menu] [Program] [Accessories] [Communications] [Hyper Terminal]

Step 4 Select the “Connection Name” and Icon to be the new connection.

Figure 5-2. Setting Connection Name

Step 5 Select the communications port to connect the communications cable.

Figure 5-3. Setting Communications Port



− 27 −

Step 6 Set COM port properties. (See Communications specifications)

Figure 5-4. COM Port Property Settings

Step 7 Turn Leak Detector II power ON to set to ID Mode.

Step 8 Send “stat C/RNOTE” from the PC hyper terminal window.(“Ready C.RNOTE” is replied from the Leak Detector II)

Step 9 Send “read C/RNOTE” from the PC hyper terminal window.

Step10 Select the data to be displayed in the hyper terminal window and paste to Notepador other text editor.

Step11 Save the file extension pasted in data as CSV.

Step12 Close hyper terminal. Select ‘Save’ to save this connection.

Step13 Read saved data file with Excel.

You can select the saved connection instead of Steps 2 to 5 from the [Start Menu] [Program] [Accessories] [Communications] [Hyper Terminal]folder

after saving the connection.

NOTE: C/R is short for Carriage Return and can be sent with the PC’s<Enter> key.

5.2 Communications steps


− 28 −

Caution Do not connect the communications cable while the indicator/operations part isassembled to the sound collecting parabolic hood (Figure 5-5).

RS232C Connector

Figure 5-5.

5.3 Data format

Measurement value (dB value), measurement value (leak volume) and sensitivity setting

values are the measurement data saved for each ID. 500 items from ID000 to ID499 are all

transferred at one time. ID numbers are not transferred as data. Browse data with Excel or

other tools that use line numbers.

Data is transferred using the following format.

Measurement Data 000(dB value), Measurement Data 000(Leak volume), Sensitivity Settings 000Measurement Data 001(dB value), Measurement Data 001(Leak volume), Sensitivity Settings 001

Measurement Data 002(dB value), Measurement Data 002(Leak volume), Sensitivity Settings 002


• • • • • • • • •


Measurement Data 497(dB value), Measurement Data 497(Leak volume), Sensitivity Settings 497




− 29 −

Section 6. Headphone Operations

See one of the following sections, depending on which headphone is used.

Table 6-1.

Headphones Reference section

ATH-CKP500 6.1 How to use

MDR-G82SL 6.2 MDR-G82SL Operation

MDR-G94NCMDR-NC20

6.3 MDR-G94NC/MDR-NC20 Operation

6.1 How to use

Figure 6-1. Exterior view of headphone

Step 1 Plug the headphone cord into the headphone jack on the right side of the indicator/operations panel of the Leak Detector II.See Figure 3-1 of section 3, “Physical Description and Functions,” for the positionof the headphones.

Step 2 Insert the earpiece marked “L” into your left ear and the one marked “R” into yourright ear.

Step 3 For a more secure fit, use the ear hooks.

6.1 How to use


− 30 −

6.2 MDR-G82SL Operation

Neckband

[MDR-G82SL]

Figure 6-2. Exterior view of headphones

Step 1 Plug the headphone cord into the headphone jack on the right side of the indicator/operations panel of the Leak Detector II.See Figure 3-1 of section 3, “Physical Description and Functions,” for the positionof the headphones.

Step 2 Put the neckband around your neck and wear the headphone so that the padsmarked “R” and “L” are positioned over the right and left ears respectively.

<How to fold the MDR-G82SL>

The neck band folds down toward the cord, and the right and left ear pads move inward.

Figure 6-3.



− 31 −

6.3 MDR-NC20/MDR-G94NC Operation

Battery Case

POWER Switch

[MDR-NC20] [MDR-G94NC]

POWER Switch

Battery Case

Neckband

Figure 6-4. Headphone

6.3.1 Preparations

Step 1 Open the battery case lid on the right headphone.

Step 2 Insert the AAA batteries included.

Step 3 Close the battery case lid.

Alkaline dry cell battery lasts for approx. 45 hours in the MDR-NC20 or for approx. 40 hours

in the MDR-G94NC.

Battery Case Lid


Battery Case Lid

Figure 6-5. Battery Case Lid

6.3 MDR-NC20/MDR-G94NC Operation


− 32 −

6.3.2 Operation steps

Step 1 Connect the headphone jack on the right side of the indicator/operations panel ofthe Leak Detector II to the cord.

Step 2 Turn the POWER switch on the right headphone to “ON”

POWER Switch ON: This device operates using noise canceling functions thatreduce external environmental noises and allow sound tobe heard clearly even at low volumes.

POWER Switch OFF: Can be used as a normal headphone with power OFF.

Step 3 Put on the headphones.

Place the headphone with the “R” mark (Battery case and POWER switch side)over the right ear and the headphone with the “L” mark over the left ear.

[MDR-NC20]

[MDR-G94NC]

ON

ON

Figure 6-6. Power Switch

Turn the POWER switch OFF after use.

Section 6. Headphone Operationsこの資料は社内用です

− 33 −

<How to fold>

The neck band folds inward.

The two ear pads come together, and the neck band folds downward.


Figure 6-7.

6.4 Others

Wipe off any dirt with a dry towel.

Sound quality may deteriorate or be interrupted in the middle if dirt is left on the plug.

WARNING Serious injuries may result from accidents if the following caution notes arenot observed.

Do not use while operating machines

Never use headphones while operating machines such as manufacturing

equipment or when driving automobiles or other vehicles. Doing so will

result in accidents. These headphones interrupt surrounding noises,

making warning sounds, etc. difficult to hear. Do not use in dangerous

locations where surrounding noises cannot be heard even when used

outside of machinery operations.

Caution Injuries or damage to surrounding equipment may result from not observing the

following caution notes.

Do not listen to high volumes over long periods of time

Loss of hearing may result from extended listening at high volumes,

which stimulate the ears.

Do not raise the volume too high when starting use

The ears may be injured by sudden, large noises. Raise the volume of the Leak

Detector II gradually.

Do not place in locations that are humid, dusty, contain oil smoke, steam or are

in direct sunlight. Doing so will cause device failure.

Do not drop or hit on other objects

Doing so will cause device failure.

Do not use if an abnormality (Rash, etc.) appears on the skin

6.4 Othersこの資料は社内用です

− 34 −

M E M OM E M O



− 35 −

Section 7. Maintenance

7.1 Handling the Ni-MH Rechargeable battery

7.1.1 Use

• Follow the instructions of the manual attached to the battery and the charger.

• Do not use the other type of batteries than the Ni-MH type.

• Do not use new and old batteries together.

7.1.2 Notes on use

• Handle with care when you install/remove the Ni-MH batteries into/from the battery case.

• Read and follow the safety instructions of the manual attached to the battery and the charger.

7.1.3 Warranty

• The battery and the charger are the third party products. Warranty terms of the third party

supplier are applicable for those products. Azbil Corporation shall not make the fault

analysis.

• Keep the warranty card attached to the battery and the charger within the warranty period.

7.1 Handling the Ni-MH Rechargeable battery


− 36 −

Section 7. Maintenance

7.2 Troubleshooting

Use the following table as reference for handling failure-type situations that occur. Contact

azbil Group for further assistance when troubles cannot be resolved using the information

provided herein.

Table 7-1.

Remove battery lid and reattach

Power is not ON Press <PWR> to turn power ONSensitivity & Volume Settings Cannot Be Performed

Sensitivity & Volume Setting LEDs Do Not Light ON

Batt LED' Blinks Immediately After Recharging Is Completed

Replace with new batteries

Battery pack is empty

Battery lid may not be attached properly

Battery pack has expired

Volume is the set target

Sensor sensitivity is the set target

Not in ID Mode

Not in Measuring Mode

Measurement value has exceeded range

Recharge battery pack or replace with new batteries

Press the <Vol.> button to set the target to Sensor Sensitivity ("Vol." LED lights ON)

Sensor Sensitivity Settings Cannot Be Performed

ID Numbers Cannot Be ChangedPress the <ID> button to change to ID Mode ("ID" LED lights ON)

Data Cannot Be Transferred To PC

Does not match PC terminal software communications specifications

Serial cable is removed

Not in ID Mode

Sounds Can Be Heard In Headphones Even When No Ultrasound Is Present

Difficult To Hear Sound Changes With Headphones

In Noise Reduction Mode

Headphone power is OFF

Lower sensor sensitivityNoise resulting from excessive sensor sensitivity

Press the <Vol.> button to set the target to volume ("Vol." LED lights OFF)

Press the <Vol.> and <ID> buttons to set to Measuring Mode ("Vol." LED and "ID" LED light OFF)

Adjust sensitivity with the < > and < > buttons

Reset the PC terminal software (See "5. PC Communications")

Attach the serial cable properly to the Leak Detector II and PC side

Press the <ID> button to change to ID Mode ("ID" LED lights ON)

Shut power OFF and set dip switch 3 to OFF (OFF set at factory shipment)

Turn switch on ear pad located on right headphone to ON (LED lights ON)

Volume Settings Cannot Be Performed

Data Cannot Be Saved

Errors Occur When <Store> Button Is Pressed

Trouble Description Possible Cause Response


− 37 −

7.3 Error codes

7.3 Error codes

Error codes are displayed in the “Data/ID” LED when abnormalities occurring in the device

are caused by device failure or incorrect button operations. Remove errors with the <Vol.>

button. (Only the <Vol.> and <PWR> buttons are accepted at error code display. Errors are

removed regardless of power ON or OFF set using the <PWR> button.)

Errors cannot be removed if they are caused by device failure and by incorrect operations.

Contact azbil Group on this condition.

Table 7-2.

Error Code Meaning

E01 ROM Check Sum Error

E02 EEPROM Write/Read Test Error

E03 Task Generation Failure

E04

E05 EEPROM Read Error

E06 EEPROM Write Error (Word writing)

E07 EEPROM Write Error (All writing)

E08

E09

E10 <Store> button is pressed with dB value outside of measurement rang

E11 <Store> button is pressed at Volume Adjustment Mode or ID Mode

E12

E13

E14

E15

E16

E17

E18

E19

E20 Abnormal Transmitter (Transmitted Character Timeout)

E21 Parity Error

E22 Framing Error

E23 Over-run Error

E24

E25 Received Data Timeout

E26 Received Character Number Error

E27

E28

E29

E30


此标志表示电子信息产品的环保使用期限，适用于在中国销售的产品，其依据是2006年2月28日公布的“电子信息产品污染控制管理办法”与SJ/T11364-2006“电子信息产品污染控制标识要求”。只要遵守此产品相关的安全及使用注意事项，在从生产日期开始的标识年限内，便不会因产品中的有害物质发生泄漏或突然异变而对环境、人体或财产造成重大影响。正当使用产品后实施废弃处理时，请遵从电子信息产品的相关回收再利用法律法规。

　　　　　　有毒害物质含有表示

○: 表示该部件的所有均质材料中，该有毒害物质含量均低于SJ/T11363-2006标准所规定的限量要求。×: 表示至少在该部件的一种以上的匀质材料中，该有毒害物质含量超过SJ/T11363-2006标准所规定的限量要求。

* : 电路板组件包括印刷电路板及其构成的零部件,如电阻、电容、集成电路、连接器等。

Information on chemical substance contents speci�ed by China RoHS

零部件名称

有毒害物质或元素

铅

(Pb)

汞

(Hg)

镉

(Cd)

六价铬

(Cr6+)

多溴联苯

(PBB)

多溴二苯醚

(PBDE)

本体

声音接受部

操作部

电池仓

印刷电路板*

激光指针

× ○ ○ ○ ○ ○

× ○ ○ ○ ○ ○

× ○ ○ ○ ○ ○

○○ ○ ○ ○ ○

× ○ ○ ○ ○ ○

× ○ ○ ○ ○ ○


Document Number: MS2-AAM211-2004

Document Name: PlantWalker SeriesPortable Operations Support ToolLeak Detector II Operations Manual

Date: November, 2009March, 2013 (Rev.4)

Edited by: Azbil Corporation



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