GasCheck G Instrument User Manual V2.4
Unrivalled Gas Detect
ion.
Page 18 of 26
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Probe options
In some applications the grey probe cover may restrict access to
the area under test, the grey probe cover can be removed by
pulling it off from the instrument
. When the grey cover is
removed, great care should be taken when using the
instrument.
NOTE:
* Do not remove the semi transparent probe sleeve,
this sleeve ensure the metal inner probe remains 1 mm
from the surface of the test area avoiding accidental
dirt and moisture ingress.
* Do not touch the probe and especially the brass
sensor housing. Heat from fingers can result in
significant changes in signal causing false readings.
* Avoid placing the probe on wet or dirty surfaces,
blockage of the probe will result in instrument failure.
Some application may require a longer probe to gain access to
pneumatic joints and seams to be tested, the GasCheck G is also
supplied with a 300mm probe that can be changed by the user.
To change probes carefully follow the following steps:-
1.
Switch the instrument OFF
2.
Remove the outer grey probe cover
3.
Place the box spanner (supplied with the instrument) over the existing probe so the spanner fits over the
brass nut
, unscrew the probe counter-clockwise direction.
4.
Withdraw the spanner and probe assembly
To refit the short or the long probe follow the steps above but in reverse order.
When using the box spanner to tighten the probe nut, ensure the nut is firmly tightened
however do not use additional tools as the tread may become damaged.
Should a probe become blocked, use dry, clean compressed air to blow out the blockage
from the instrument end of the probe. Ensure probe has been removed first.
The instrument has been factory calibrated using the standard short capillary which sets a
certain flow rate into the detector.
The long capillary by nature of its construction has a different flow to improve the time response in detection. This will
change the calibration of the instrument when the long probe is used instead of the short capillary. Thus the long
probe is only to be used in finding leaks in difficult places where the standard short probe cannot reach. The readings
given by the long probe are only qualitative and the reading given by the display is only to be taken as being relative to
another value given by another leak site while using the long probe.
Ensure safety guidelines are adhered to when using compressed air.
(Ion Science Ltd takes no responsibility for injury or damage caused by misuse of
compressed air equipment)
