Pmt High-Voltage Adjustment; Troubleshooting And Service Guide - PAC R6000S Operation Manual

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R6000S Operation Manual: Rev. G

4.6

PMT High-Voltage Adjustment

In the event that the PMT High-Voltage module needs to be changed, the following steps should be

taken.

1. Remove the top cover of the detector module.

2. Turn the high-voltage switch to the OFF position.

3. Locate the High-Voltage Module.

4. Set voltmeter to 1VDC scale, and connect it between blue test point TP1 and yellow test point TP2.

5. Turn the High-Voltage switch to the ON position.

6. While monitoring the voltage with the voltmeter, use the P2 trimpot on the High-Voltage PC Board to

set the High-Voltage to the desired value. Meter will read 1/1000 of actual value.

7. Turn the High-Voltage switch to the OFF position and remove the voltmeter leads.

8. Turn the High-Voltage switch to the ON position.

9. Perform calibration procedure.

10. Resume normal operation.

4.7

This section is a guide provided to aid in isolating and correcting problems that may arise while operating

the analyzer. To use this guide, simply locate the symptom in the left column and follow suggestions for

probable cause and remedy.

For detailed drawings of component location, electronic schematics, flow diagrams, parts lists, and

servicing guidelines, refer to Chapter 5 "Drawings and Documents" at the back of this manual.

Page 64 of 92

ELECTROCUTION HAZARD!

DEATH OR SERIOUS INJURY WILL OCCUR IF NOT AVOIDED!

An electrocution hazard exists because severe electrical shock hazards exist

when working around the high-voltage and/or 115/230 VAC components while

power is applied.

HOW TO PROCEED: Avoid hazard by turning off the unit with the ON/OFF

switch and remove the power connection or power cord from the unit to the

power source. Also, follow any required lock-out/tag-out procedures your

company policy requires.

To prevent electrical shock hazard DO NOT operate this equipment in rain or

wet conditions.

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