Using Gascheck G - ION GasCheck G Instrument User Manual

Using GasCheck G

The GasCheck G instrument
WARNING: Before switching the GasCheck G on, ensure the ambient air is clean as the instrument automatically Zero's
the sensor at switch on. After the instrument has run through it's start up routine, adjust the instrument settings to
the desired levels. Check the instruments sensitivity using a CalCheck or calibration kit.
Switch the GasCheck G on by pressing the ON/OFF key, after the instrument
has completed its Zero routine it will enter it's normal running screen. (see
right)
Ensure the instrument is on the X100 (times one hundred) range while on the main running screen. Use the UP and
DOWN key to adjust between sensitivity ranges. X100 is most sensitive, X1 is the least sensitive.
Gas leaks tend to occur at pneumatic joints or welded seams, hold the GasCheck G at a 45
tested and drag the probe along the seam or joint at a rate of approximately 25mm per second.
When a leak is detected the bar graph will start to fill and the frequency of the audio output will increase; this will
decrease as the probe moves away from the leak. Return the probe to the suspected leaking area and move slowly
along the same area until the leak is located. Once located the probe should be held at the leak until the numeric
reading stabilizes.
The bar graph offers a graphical indication only and should not be used to measure a leak; you may find that the graph
completely fills however the numeric reading will continue to increase. Should the instrument detect a leak that is too
large for the range selected the numeric screen will flash and display '99999', use the UP or DOWN keys to adjust the
instrument sensitivity.
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 leak or contamination and then press the
ZERO key. The instruments display will return to a near zero reading.
The following things will affect the instruments reading:-
* Breath of the instrument user contains both CO
* Barometric air pressure and background temperature;
* Sources of cold and heat.
Unrivaled Gas Detection.
GasCheck G Instrument User Manual V2.4R
and moisture;
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