Teledyne 100AH instruction manual DIAGNOSTIC, Troubleshooting, 10-1

Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D

10 DIAGNOSTIC, TROUBLESHOOTING

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.

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