Replacing The Tcd Switching Valve - Agilent Technologies 7820A Service Manual

Agilent 7820 GC Service
83

Replacing the TCD switching valve

1 Turn off all gas flows at their sources.
Turn off the GC main power switch.
Components can be damaged by static electricity:
be sure to wear an ESD strap grounded to the GC
chassis while performing this procedure.
Remove the detector top cover, the electronics cover. EPC
module cover and the module retainer.