Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D
NOTE
The operations outlined in this chapter are to be
performed by qualified maintenance personnel only.
This section of the manual contains information on diagnosing and corrective action procedure
for the instrument performance problems. It contains information on how to use and interpret
TEST and DIAGNOSTIC data as well as WARNING messages the instrument generates. There
is information on how to troubleshoot the instrument subsystems. Finally there is information to
perform adjustments such as DAC calibration procedures.
This manual provides troubleshooting procedures that address problems to the board level. For
component level troubleshooting, consult the schematics for the appropriate board in
Appendix A.1.
NOTE
The values of the readings shown on the front panel of the instrument
may at times read XXXXXX. This means that the reading is off
scale and therefore meaningless.
General Troubleshooting Hints
Think of the analyzer as three sections to isolate the cause of the problems:
Section 1 - Pneumatics - Over 50% of all analyzer problems are traced to leaks in the pump,
sample filter, instrument internal pneumatics, calibrator or external sample handling equipment.
Section 2 - Electronics - data processing section. This can be readily checked out using Electric
Test in Section 10.1.3.2.
Section 3 - Optics - Optical section consisting of PMT, HVPS, Preamp, and signal processing.
Refer to Section 10.1.3.3 on use of Optical Test.
10-1