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10.3 Leak Check
To ensure the gas sampling system is sealed correctly and not letting in air, the analyzer will perform a leak
check. This requires the user to block the probe inlet and perform the test. This check is done every time the
analyzer is switched on or as requested by the user. It is also advisable to perform a leak check if the water
trap is removed and replaced i.e. for particle filter renewal.
When YES is selected, the leak check procedure is as follows:
CAUTION!
When fitting the SEAL ensure the exhaust probe has been removed from the vehicle for
some time and is cool.
Press
when the seal is in place. The check will take a few seconds. Following a successful test the
analyzer will return to the MAIN DISPLAY.
If a leak is detected in the gas system the test will fail.
Check for the following:
• The seal is correctly positioned over the holes in the end of the probe.
• There are not apparent cracks in the probe or tube.
• The water trap housing is not cracked and the ends are in place.
• All O-rings on the probe connections are in good condition and in place.
• There is no physical damage to the analyzer case.
• The water trap fitting on the analyzer is in good condition.
Once the above has been checked press
to perform the leak test again.
If the analyzer continues to fail, contact your service center.
LEAK CHECK
REMOVE EXHAUST PROBE
FIT PROBE SEAL
THEN PRESS ENTER
LEAK CHECK
PASSED
REMOVE PROBE SEAL
THEN PRESS ENTER
LEAK CHECK
FAILED
CHECK PROBE & SEAL
THEN PRESS ENTER
