Azbil Leak Detector II User manual

MS2-AAM211-2004
PlantWalker Series Portable Operations Support Tool
Leak Detector
Operations Manual
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•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.
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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.
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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.
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Table of Contents
Table of Contents
Introduction ............................................................................... 1
Section 1. Overview ................................................................. 3
1.1 Functions Overview ................................................................................. 4
Section 2. Specifications ........................................................ 5
2.1 Main unit specifications ........................................................................... 5
2.2 Model Numbers........................................................................................ 5
2.3 Dimensions............................................................................................... 6
Section 3. Physical Descriptions & Functions...................... 7
3.1 Physical Descriptions ............................................................................... 7
3.2 Indicator/Operations Panel ....................................................................... 8
3.3 Button Functions ...................................................................................... 8
3.4 Indicator functions ................................................................................... 9
3.4.1 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 ................................................. 13
4.1 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.................................................................................... 18
4.2.1 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
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vi
Table of Contents
Section 5. PC Communications.............................................. 25
5.1 Communications specifications ............................................................... 25
5.2 Communications steps ............................................................................. 25
5.3 Data format .............................................................................................. 28
Section 6. Headphone Operations ......................................... 29
6.1 How to use ............................................................................................... 29
6.2 MDR-G82SL Operation ........................................................................... 30
6.3 MDR-NC20/MDR-G94NC Operation .................................................... 31
6.3.1 Preparations .................................................................................................... 31
6.3.2 Operation steps ............................................................................................... 32
6.4 Others ....................................................................................................... 33
Section 7. Maintenance ........................................................... 35
7.1 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 contents
specified by China RoHS .......................................................... 38
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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 measurement
target. Use this product for rough estimates in the presence of ultrasound or to
check the intensity of air leaks.
Caution Avoid using this product for toxic gas or explosive gas leak tests.
Introduction
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Introduction
MEMO
MEMO
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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
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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 sound
pressure values measured with an general ultrasonic detector.This is due to the
effects of parabola directivity, sound collecting characteristics, built-in ultrasound
sensor frequency characteristics and directivity of the Leak Detector II.
Caution The ultrasound intensity is converted into an air leak volume that is displayed (0.1
to 1.9 Nm3/h range). Ultrasound level and leak volume level conversion are based
on specific characteristics, which may not agree with the actual leak volume. The
leak 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/F
Nonvolatile Memory (To PC)
Sound collecting parabolic hood
Ultrasonic Sensor
Figure 1-2. Leak Detector II Function Block Diagram
Section 1. Overview
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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 Range
Storage 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, and
headphones
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
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2.3 Dimensions
72
82
202
282
310
204.5
1
Figure 2-1. Leak Detector II
68
12
121
72
934.5
26
81
Figure 2-2. Leak Detector II (Detached Use)
Section 2. Specifications
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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
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3.2 Indicator/Operations Panel
Vol. Button
(Volume Adjustment)
PWR Button(Power)
Data/ID LED
dB Value, Leak Volume
ID Number Display
Status LED
ID : Lights at ID Mode
Vol. : Lights at Volume
Adjustment Mode
Leak: Lights at Leak Volume Display
Hold : Lights at Data Hold
Batt : 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 pressure
value/leak volume and sensor
sensitivit
y
<Hold/Data Disp> Data hold or release hold
NOTE2
Disabled
Displays saved data &
sensitivity (while button is
pressed)
<ID>+<Vol.>
<Vol.>
NOTE3
Changes to Volume
Adjustment Mode
NOTE1
Changes to Measurement
Mode Shifts ID number digits
<ID> Changes to ID Mode Changes to Measurement
Mode
Changes to Measurement
Mode
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/OFF
NOTE5
Error code display
NOTE4
Switches to sound pressure value/leak value display
NOTE1
Section 3. Physical Descriptions & Functions
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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 range
due 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 sound
pressure values measured with an general ultrasonic detector. This is due to the
effects of parabola directivity, sound collecting characteristics, the built-in
ultrasonic 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
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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)
16
Outside 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
Section 3. Physical Descriptions & Functions
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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 the
Leak 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 power
Recharge battery immediately
No battery
Operations cannot be continued Stop
Warning
Stop -
Blinks (Lights ON time is long) Normal
3.5 Headphone output
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MEMO
MEMO
Section 3. Physical Descriptions & Functions
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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 battery
case out.
Battery Pack Lid Screw
Figure 4-1.
Step 2 Install the Ni-MH batteries (size AAA 6) into the battery case to the correct
position 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 to
contact the terminals of the battery case and the sensor unit each other, then tighten
the screw of the battery pack lid. Confirm the battery case does not fall from the
sensor unit.
(MADE IN JAPAN)
Terminal Terminal
Figure 4-3.
4.1 Measuring preparations
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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 affect
measurement 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.
Section 4. Measuring Method
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