Appendix A: General Maintenance
All combustion analysers use consumable items such filters and probes. These items
are user serviceable and can be taken care of by the operator.
The consumable items that will require operator attention are the water trap / filter
assembly, flue probe, pump protection filter, and ambient temperature probe.
The following maintenance checks should be performed before each boiler analysis to
ensure that the filters are clean & dry and free from any dirt or moisture.
*Failure to
ensure filters are clean and dry may result in slow &/or inaccurate readings.
That the pump is running at OK and that the probe has no loss of integrity which
could result in in-accurate readings
Water Trap Check
Visually check the water trap for:
1. Cracks in the bowl.
2. Broken ears on the bowl where the lid locks on.
3. Broken ears on the lid.
4. Worn out o-ring on the lid.
5. Loose connection to the flue probe tubing.
Filter Check
Signs of dirty or water saturated filters are a slow pump, flow error displayed when
the flue probe is connected, and measurements that take longer than normal.
TPI analysers use three filters to protect the pump and sensors. The first filter to
check is the A763 mini pump protection filter. (see picture below)
Inspection Window
Pump Protection Filter
Look in the inspection window to check the filter. When the filter material becomes
dark, pull the black nose cone out of the tubing and replace the ball filter inside.
33
www.
GlobalTestSupply
.com
Find Quality Products Online at:
