Accessing Detector Signal Boards; Replacing Detector Signal Boards - Agilent Technologies 7820A Service Manual

Descripti
on
uECD
FID
NPD
TCD
FPD

Accessing detector signal boards

Replacing detector signal boards

Agilent 7820 GC Service
41
FPD G3435-60010
Table Detector signal electrical connectors
P1 P2
Communicati Electromet
on buss er
Communicati Ignitor
on buss
Communicati Bead
on buss current
Communicati
on buss
Communicati
on buss
The front and back detector signal boards are located under the
right-hand side panel.
1 Remove the detector top cover and the electronics top cover.
Remove one screw on the side of the right hand side panel.
Loosen one screw and remove one screw on the back of the GC.
Slide the panel toward the back of the GC and lift off. Place the
tip of the driver in one of the top ventilation slots and push back.
1 Cool down the oven.
Turn off the GC main power switch and disconnect its power
cord.
F-DET or B-DET. Also uses AUX
1.
P3 P4
Electromete
r
Electromete
r
Switchi J4 Filaments
ng
valve
High Signal
voltage
Other
P5 -
ignitor