Maintenance of the uv lamp, Removing the uv lamp – INFICON Explorer Portable Gas Chromatograph User Manual
Page 242
Maintenance and Troubleshooting
240
Maintenance of the UV Lamp
During normal operation of the photoionization detector, the lamp window will
become coated with UV-absorbing material from the sample stream. This reduces
the lamp's effective light output and results in a substantial drop in the detector
response. Removal of the lamp and proper cleaning of the lamp window may restore
the detector sensitivity. As a guide, clean the GC lamp window every week.
If the lamp fault appears, the UV lamp has failed. Open the Status box in the GC
mode and check the Lamp Status. If a Timeout Fail or Intensity Fail is displayed
then the UV lamp must be replaced.
Removing the UV Lamp
WARNING
Do not remove the UV lamp in hazardous locations.
1. Ensure the instrument is turned off.
WARNING
You must turn the instrument off before removing the lamp cover.
2. Remove the lamp access cover using the hex driver supplied with the tool kit.
3. Use the multi-tool provided to remove the lamp housing cover.
4. Tilt
Explorer slightly and remove the UV lamp.
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