Ion Science GasCheck Tesla - Manual (Page 15)

GASCHECK TESLA MANUAL Ion Science Ltd
Page 15 of 25
Unrivalled Detection. www.ionscience.com
Using GasCheck Tesla
The GasCheck Tesla instrument
WARNING: Before switching the GasCheck Tesla on, ensure the ambient air is clean as the instrument
automatically Zero's the sensor at switch on. After the instrument has run through its start-up routine, adjust
the instrument settings to the desired levels. Check the instruments sensitivity using a CalCheck or
calibration kit
Switch the GasCheck Tesla 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 Tesla at a 45
o
angle to the
object being 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 but
will reduce 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 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 CO2 and moisture;
* Barometric air pressure and background temperature;
* Sources of cold and heat.