analyzer using natural air as the calibration gas, and verify it against
the bottled air. If it reads incorrectly, replace it with a tank of certified
air.
Analyzer readings were too high
1. Verify that there is no flow restriction in the outlet port of the
analyzer.
2. If measured Oxygen conentration is less than 20.9% and this fault
appears. Increase the sample gas flow through analyzer, if readings
decrease accordingly, this shows that the sample gas pipeline into the
unit or connecting pieces has a leak. Use "Snoop TM" or similar soap
to locate the leaking joint.
3. Remove the sensor, and confirm analyzer reads zero, if not, there is
moisture or corrosion between the sensor contacts in the cell block;
clean the contacts and the area around them with isopropyl alcohol,
dry with dry compressed air or nitrogen, then replace the cap on the
cell block.
Analyzer reads zero
1. Confirm the terminals make good contacts with the sensors, if the
To Next Page
Loading...