Trace Oxygen Analyzer
Maintenance 5
5-9
Teledyne Analytical Instruments
Table 5-1: Self Test Failure Codes
Power
0
OK
1
5 V Failure
2
15 V Failure
3
Both Failed
Analog
0
OK
1
DAC A (0–1 V Concentration)
2
DAC B (0–1 V Range ID)
3
Both Failed
Preamp
0
OK
1
Zero too high
2
Amplifier output doesn't match test input
3
Both Failed
