Ion Science GasCheck Tesla - Manual (Page 17)

GASCHECK TESLA MANUAL Ion Science Ltd
Page 17 of 25
Unrivalled Detection. www.ionscience.com
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 way from the instrument

. When
the grey cover is removed great care should be taken
when using the instrument and the following precautions
noted:-
* 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 Tesla is also supplied with a 300mm probe that
can be changed by the user. To change probes carefully
follow the following steps:-
* Switch the instrument OFF
* Remove the outer grey probe cover

* 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.

* Withdraw the spanner and probe assembly

To refit the short or the long probe follow the steps above but in reverse order.
CAUTION: 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.
Cautionary Note: 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.
WARNING: 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)