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4.7 REGULAR CHECKS DURING SAMPLING
Care must be taken at all times not to exceed the analyzers operating specifications, in particular
ensure the following :-
•
DO NOT PLACE THE ANALYZER IN THE ENGINE BAY.
•
Do not expose the analyzer to temperatures outside its normal operating range.
•
DO NOT PLACE THE ANALYZER ON A HOT SURFACE.
•
Ensure that liquid in the water trap does not go over the level indicator. Note! The indicator only
works while the trap is vertical. Water condenses in the probe line and can quickly fill the water
trap when the probe is moved. Take care, watch the water trap closely and empty any water
when it is noticed.
•
Make sure that the in-line particle filter is clean and does not become blocked. If this filter is
allowed to become dirty then damage may occur inside the analyzer.
Check the following for water:-
•
Probe line, water trap and particle filter
When the blockage is cleared the analyzer should resume normal operation. If it is not possible to clear
the problem, then internal damage may have occurred and the unit should be returned to a service centre.
TIP:
After testing, hang the sample hose so that both ends are free to drain any condensate.
4.8 NORMAL SHUTDOWN SEQUENCE
DO THIS EVERY TIME YOU USE THE ANALYZER
Remove the probe from the vehicle exhaust -
BE CAREFUL! THE PROBE WILL BE HOT
- and allow it to
cool naturally. Do not immerse the probe in water as this will be drawn into the analyzer and damage the
pump and sensors.
Once the probe is removed from the exhaust allow the readings to return to zero and press
the
analyzer will count down from 30 to switch off.
