6
Service & Maintenance
38
Series 943 Cold Cathode Vacuum Sensor
Instruction Manual - #100009887
6.5 Contaminated 943 Sensor
If pressure readings appear to be erratic, the Sensor tube may be contaminated. Inspect it visually. If
contamination is visible, you should replace the internal components with an Internal Rebuild Kit
(see Section 6.7, Accessories).
Depending on the degree of contamination and application of the sensor, the internal parts may be
cleaned - either ultrasonically, with mild abrasives, or chemically.
Figure 6-1: 943 Cold Cathode Sensor Assembly Illustration
