INFICON RSH-600 Rotary Sensor - Manual (Page 23)

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RSH-600 Operating Manual
Chapter 3
Troubleshooting and Maintenance
3.1 Troubleshooting
If the RSH-600 fails to function, or appears to have diminished performance, the
following Symptom/Cause/Remedy charts may be helpful.
WARNING
There are no user serviceable components within the
RSH-600 sensor.
Refer all maintenance to qualified INFICON personnel.
A useful tool for diagnosing sensor head problems is the DMM (Digital Multi-Meter).
Disconnect the short oscillator cable from the feedthrough and measure the
resistance from the center pin to ground. If the reading is less than 10 megohms
the source of the leakage should be found and corrected.
3.2 Troubleshooting the RSH-600
Table 3-1 General Troubleshooting
SYMPTOM CAUSE REMEDY
1. Crystal fail signal on front
panel of unit will not
disappear. a. Damaged crystal. a. Replace crystal.
b. Loss of electrical signal. b. Check for electrical
continuity at the BNC
connector.
2. Unit will not advance when
crystal switch key is pressed.
Xtal switch error message
displayed. a. Loss of pneumatic supply
or pressure is insufficient for
proper operation. a. Establish air supply and
regulate to 55 psi.
b. Operation has been
impaired as a result of
peeling of the material
accumulated on the face of
the aperture plate. b. Remove accumulated
material.