1240 Wiring Harnesses
Inlet/Detector harness (G1530-60640)
2 of 8
Jun 2001
Electrical
Agilent 6890 Gas Chromatograph Service Manual
Inlet/Detector harness (G1530-60640)
The Inlet/Detector harness runs from connector P21 on the main board to
the front and back inlets and detectors on top of the instrument. It powers
the inlet/detector heater and sensors and the +24 V valve on a manual split/
splitless inlet
.
Wire
color
Pin #
on P21
Signal
name
Destination
(and Pin #)
Black 1 Sensor GND FI (3)
2 Sensor GND BI (3)
3 Sensor GND FDI (3)
4 Sensor GND BDI (3)
Green 5 Heater GND FI (4)
6 Heater GND BI (4)
7 Heater GND FD (4)
8 Heater GND BD (4)
Yellow 9 +24 Volts FV (1)
10 +24 Volts BV (1)
Violet 11 Frnt Inj Sense FI (2)
Gray w/ 12 Back Inj Sense BI (2)
Violet stripe 13 Frnt Det Sense FD (2)
Gray 14 Back Det Sense BD (2)
Red 15 Frnt Inj Htr FI (1)
Red w/Orange 16 Back Inj Htr BI (1)
stripe 17 Frnt Det Htr FD (1)
Orange 18 Back Det Htr BD (1)
Blue 19 Frnt Inj +24 Vlv FV (2)
White 20 Back Inj +24 Vlv BV (2)
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