Agilent 7820 GC Service
73
Inlets, detectors, and the oven are insulated
with fibrous materials which may cause
irritation to skin, eyes, and/or mucous
membranes. Always wear gloves when working
with the insulation. Additionally, if the
insulation is flaky/crumbly, wear protective
eyewear and a suitable breathing mask and/or
respirator.
Disconnect the column from the bottom of the detector.
Remove the right side mainframe panel.
Remove the electronics top cover.
Disconnect the power/sensor cable to the NPD detector.
Disconnect the electrometer cable from the NPD signal board.
(For the old version detector) Unscrew the three thumbscrews
that secure the detector flow tubing to the EPC module.
(For the new version detector) Unscrew the captive screws
that secure the detector flow tubing blocks to the EPC module.