2. SAFETY Please read this manual in full before using the GasCheck G Series instrument. Portable Leak Detectors takes no responsibility for damage, injury or death resulting from misuse, misunderstanding or negligence while using this gas detector.
All GasCheck G Series models have an easy to use graphical interface with an intuitive keypad allowing simple function selection and adjustment. It can be upgraded to add features without the need to be returned to the supplier and without having to modify the internal firmware.
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LACO USER MANUAL - GASCHECK G SERIES Table 2: GasCheck Replacement Parts PART NUMBER DESCRIPTION A-08045 Long probe A-08043 Short probe 1/BH-01 Replacement battery holder 08024CPC8 Nozzle A-08029 Box Wrench CM515.0-4101FAG/1 Leak Standard with Refillable Helium Reservoir, 5x10-4 cc/sec CM515.0-410SFA0/1...
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LACO USER MANUAL - GASCHECK G SERIES IMPORTANT NOTES The GasCheck G Series range is NOT intrinsically safe, so it should not be used in potentially explosive environment. Intrinsically safe GasCheck instruments are available; please contact Portable Leak Detectors for more information.
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LACO USER MANUAL - GASCHECK G SERIES THERMAL CONDUCTIVITY All gases conduct heat by varying amounts. If an object is heated and the source of the heat is then removed, the object will eventually cool down to match the ambient air temperature. This action occurs because the ambient air surrounding the object carries the access heat into the surrounding atmosphere.
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LACO USER MANUAL - GASCHECK G SERIES The GasCheck G Series contains a heated thermistor bead that transmits heat to a block of material that remains at a constant temperature. As air passes through the detector chamber a constant amount of heat passes from the bead to the block.
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LACO USER MANUAL - GASCHECK G SERIES INSTRUMENT MAIN MENU Once the GasCheck has run through its START UP routine it will display its normal RUNNING SCREEN used when locating gas leaks. Before using the instrument, the various settings should be adjusted to suit the application.
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LACO USER MANUAL - GASCHECK G SERIES RUNNING SCREEN The GasCheck displays the RUNNING SCREEN whenever the instrument is being used to detect leaking gas. The illustration below outlines the various information and icons. Table 5: Running Screen Display FUNCTION...
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LACO USER MANUAL - GASCHECK G SERIES FUNCTIONS The GasCheck instruments have a variation of functionality. Each of the functions listed below has a number to the right of the heading. This number indicates which function is included with each model.
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LACO USER MANUAL - GASCHECK G SERIES FUNCTION DESCRIPTION MODEL VIEW DATA The GasCheck instrument has the ability to data log 10 readings within its internal G2, G3 memory. To tore a reading, press the ENTER key while on the main RUNNING SCREEN.
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LACO USER MANUAL - GASCHECK G SERIES FUNCTION DESCRIPTION MODEL GAS SELECTION The GasCheck is calibrated using helium gas at manufacture, however other gases can be detected and measured using a gas table within the instrument. Although GasCheck can’t differentiate between gases, it can quantify other gases using response factors stored in its internal gas table.
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LACO USER MANUAL - GASCHECK G SERIES STARTUP ROUTINE 1. When the GasCheck first switches on, it will display its model number and the gas that it has been calibrated with. 2. A second screen then displays the instrument’s serial number, the instrument’s firmware version and web address.
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LACO USER MANUAL - GASCHECK G SERIES Variation in temperature, humidity, and background gas may result in a constant level being detected on the instrument. To reset to Zero, hold the instrument away from the source of contamination and then press the ZERO key.
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LACO USER MANUAL - GASCHECK G SERIES Should a probe become blocked, use dry, clean, compressed air to blow out the blockage from the instrument end of the probe. WARNING Ensure safety guidelines are adhered to when using compressed air.
LACO USER MANUAL - GASCHECK G SERIES 5. MAINTENANCE CALIBRATION The GasCheck G Series has two selectable calibration settings: factory and custom. Factory calibration is carried out at Ion Science during the instrument’s manufacture. It can be selected and used but cannot be changed.
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LACO USER MANUAL - GASCHECK G SERIES 3. Ensure the instrument is in clean air and then press the ENTER key. The instrument will Zero. This will take a few seconds, but once complete a READY message will appear. 4. Insert the instrument’s probe fully into the sample bag containing the gas and press the ENTER key.
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LACO USER MANUAL - GASCHECK G SERIES WARNING Great care should be taken to ensure the calibration gas is neither pressurized or restricts flow to the instrument’s probe. Changes in flow of gas to the sensor will result in significant errors in readings.