Teledyne 3020M - Explosion proof paramagnetic oxygen analyzer - Manual (Page 57)

Percent Paramagnetic Oxygen Analyzer Maintenance 5
5-3
Teledyne Analytical Instruments
Figure 5-2: Removing Fuse Cap and Fuse from Holder
2. Replace fuse by reversing process in step 1.
5.5 System Self Diagnostic Test
Use the DOWN/UP control to scroll through the MAIN MENU to
SELF-TEST . The screen will follow the running of the diagnostic.
RUNNING DIAGNOSTIC
Testing Preamp — 83
During preamp testing there is a countdown in the lower right corner of
the screen. When the testing is complete, the results are displayed.
Power: OK Analog: OK
Preamp: 3
The module is functioning properly if it is followed by OK . A number
indicates a problem in a specific area of the instrument. Refer to Table 5-1
for number-code information. The results screen alternates for a time with:
Press Any Key
To Continue...
The following failure codes apply:
Table 5-1: Self Test Failure Codes
Power
0 OK
1 5 V Failure
2 15 V Failure
3 Both Failed