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Jun 2001
Detectors
Agilent 6890 Gas Chromatograph Service Manual
Micro-cell Electron Capture Detector (µ-ECD) 341
Replacement procedures
Replacement procedures
Replacing the entire detector/detector cell
WARNING Before proceeding, turn off the oven and any heated zones and let them cool.
Turn off any detector gases at their supply, then turn off the main power
switch and unplug the power cord.
WARNING The ECD micro-cell contains radioactive
63
Ni. To reduce the risk of exposure,
wear disposable gloves while handling the ECD micro-cell. When you are
finished, dispose of the gloves and wash your hands with soap and water.
1. Remove the detector cover, the electronics carrier cover and the right
side cover.
Caution Make sure you are properly grounded with an ESD strap before continuing.
2. Disconnect the electrometer ribbon cable from the µ-ECD interface card.
3. Disconnect the heater/sensor leads from the connector on the right side
of the GC.
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