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D141-32-880 Issue A

Page 8

© Edwards Limited 2009. All rights reserved.

Edwards and the Edwards logo are trademarks of Edwards Limited.

OPERATION

4.2

GasCheck G3 running screen

The GasCheck G3 displays the 'running screen' whenever the instrument is used to detect leaking gas. 

Figure 5

describes the information and various icons displayed.

Figure 5 - Running screen

4.3

Using the GasCheck G3

CAUTION

Ensure that the ambient air is clean and free from any tracer gas when the GasCheck G3 is switched on.  Failure 
to do so will result in inaccurate zero readings.

CAUTION

Do not touch the probe or brass sensor housing.  Any changes in heat can result in significant changes in signal 
causing false readings.

CAUTION

Avoid placing the instrument on wet or dirty surfaces.  Blocking of the probe will result in instrument failure.

CAUTION

Do not bend the probes.  The accuracy of the GasCheck G3 will be affected.

1. Gas selection
2. Sensitivity
3. Sound indicator
4. Battery status indicator
5. Backlight indicator
6. Peak hold indicator
7. Data symbol indication of leak rate stored in memory
8. Bar graph indication of leak rate
9. Leak rate

Summary of Contents for D141-32-000

Page 1: ...D141 32 880 Issue A Original Instruction Manual GasCheck G3 Description Item Number GasCheck G3 D141 32 000...

Page 2: ...boratory Use General Requirements EN61326 1 2013 Electrical equipment for measurement control and laboratory Class B Emissions Use EMC requirements General requirements Basic Immunity EN50581 2012 Tec...

Page 3: ...Getting started 7 4 2 GasCheck G3 running screen 8 4 3 Using the GasCheck G3 8 4 4 GasCheck G3 keyboard 9 4 5 Probe options 12 5 MAINTENANCE 14 5 1 Replacing fitting batteries 14 5 2 Calibration 14 5...

Page 4: ...tartup 7 5 Running screen 8 6 GasCheck G3 keypad layout 9 7 GasCheck G3 menu structure 10 8 Remove the probe cover 12 9 Change between short and long probes 13 10 Replacing batteries 14 Tables Table P...

Page 5: ...y information is highlighted as WARNING and CAUTION instructions you must obey these instructions The use of WARNINGS and CAUTIONS is defined below CAUTION Cautions are given where failure to observe...

Page 6: ...igital display 6 and are also given by a front mounted LED flasher 5 and as audible clicks from a rear panel loudspeaker 2 The GasCheck G3 has a convenient storage and carrying case together with a sp...

Page 7: ...ayed as leak rates 1 4 Applications You can use the GasCheck G3 on many types of applications including those listed below z Quality assurance testing on manufactured component seals z Laboratory appl...

Page 8: ...g temperature range 0 to 50 C Storage temperature range 25 to 70 C Materials of construction GasCheck G3 Storage case Polypropylene Polyurethane Battery requirements MN1500 or equivalent i e AA LR6 4...

Page 9: ...ich can be used as a substitute for gases not listed in Table 1 group 5 being the highest sensitivity through to group 1 being a low sensitivity Contact Edwards for advice on which groups to use Respo...

Page 10: ...case of the GasCheck G3 together with your order number and your supplier s invoice number Do not use the GasCheck G3 if any item is damaged Refer to Figure 3 and check that the storage case contains...

Page 11: ...r of screens are displayed before the unit is ready to detect leaks Refer to Figure 4 Figure 4 Screens displayed during GasCheck G3 startup WARNING Do not use the GasCheck G3 in safety critical applic...

Page 12: ...when the GasCheck G3 is switched on Failure to do so will result in inaccurate zero readings CAUTION Do not touch the probe or brass sensor housing Any changes in heat can result in significant chang...

Page 13: ...or keys Note Variation in temperature humidity or background gas may result in a constant offset being detected on the GasCheck G3 To reset the zero hold the GasCheck G3 away from the source of conta...

Page 14: ...D141 32 880 Issue A Page 10 Edwards Limited 2009 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited OPERATION Figure 7 GasCheck G3 menu structure...

Page 15: ...the key to clear the held reading The reading held on screen will be logged when the key is pressed Calibration can be used to switch between the factory calibration setting and user defined calibrat...

Page 16: ...the short probe B Figure 8 Remove the probe cover Some applications may require a longer probe in order to reach inaccessible areas The GasCheck G3 is supplied with a 300mm Long probe in the storage c...

Page 17: ...e short probe A as shown in Figure 9 B Unscrew the probe counter clockwise Remove the spanner and the probe assembly C To replace the short probe with the long probe perform the same sequence in rever...

Page 18: ...with the correct battery selection alkaline or nickel metal hydride as described in Section 4 4 This ensures that the battery status indicator can correctly identify the remaining capacity of the bat...

Page 19: ...cedure Also remove the outer grey probe cover from the GasCheck G3 Select the calibration procedure on the main menu refer to Section 4 4 Select custom cal by using the or key to move the tick to icon...

Page 20: ...erence leak Contact Edwards for more details Table 5 Calibration of the GasCheck G3 cc sec leak rate units Ensure the pressure on the portable reference leak is set correctly Select the calibration pr...

Page 21: ...d in Section 2 1 Unpack as described in Section 3 6 2 Disposal Dispose of the GasCheck G3 components and used batteries safely in accordance with all local and national environmental safety requiremen...

Page 22: ...ervice Engineers who have undergone comprehensive Edwards training courses Order spare parts and accessories from the nearest Edwards company or distributor When ordering state for each part required...

Page 23: ...sec leak rate units 16 Custom calibration concentration units 15 G GasCheck G3 keypad 9 GasCheck G3 running screen 8 GasCheck G3 spares and accessories 18 Getting started 7 M MAINTENANCE 14 P Performa...

Page 24: ...D373 77 880 Issue A Page 20 Edwards Limited 2009 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited This page has been intentionally left blank...

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