PEAK
Scientific Instruments Ltd
ZA300 Zero Air Gas Generator
Instructions for use Manual
30
th
March 2005
ZA300 issue 3
16
8
Troubleshooting
Problems with the ZA300 will most probably be shown up by increased levels of Hydrocarbons or CO
2
being detected on the baseline. The following procedure should be followed to identify the source of the
problem.
Reference should be made to the following Fault Finding Charts.
1.
High CH
4
High CH4
Cat Chamber Hot/
Cold
Control Board
LED
LED Off
Voltage
At Heater
Thermocouple
Wiring
Replace
Control Board
Replace
Thermocouple
Replace Heater
Voltage At
Board Output
Check Wiring
Off
On
Open
Circuit
OK
Yes
No
Yes
No
Check
Flow Rate
Hot
Cold
