Teledyne 9700 Flue Gas Analysis System Maintenance & Troubleshooting, Routine Maintenance

Flue Gas Analysis System

Maintenance & Troubleshooting 5

Maintenance & Troubleshooting

5.1Maintenance

5.1.1 Routine Maintenance

No moving parts other than the meter movement and the relay con- tacts are contained in the analyzers. Periodic service, therefore, other than oxygen cell replacement, is not required. The periodic calibration con- tained in Sections 4.1 and 4.2 should be adequate to keep the analyzers functioning. If troubles develop, refer to the trouble shooting procedures contained in Section 6.

5.1.2Oxygen Cell Replacement

When the Micro-Fuel Cell nears the end of its useful life, sensitivity will decline very rapidly. The initial response to this phenomenon will be recalibration of the analyzer. If many turns of the SPAN control are re- quired to recalibrate the instrument, or more commonly, the control does not have sufficient range to recalibrate the analyzer, a new Micro-Fuel Cell will be required.

Wipe off contact pins (P/N A-6544) in the probe assembly with a clean tissue before installing the new cell. If, after long service, the contact pins become pitted or worn, they may be replaced by unscrewing the hold- down plate.

To offset the possibility of not having a replacement cell available when it is needed, TBE/AI recommends that a spare cell be ordered shortly after the instrument is placed in service, and each time the cell is replaced thereafter.

TELEDYNE BROWN ENGINEERING 5-1

Analytical Instruments