12 of 16 Jun 2001
Index
Index
Agilent 6890 Gas Chromatograph Service Manual
Too hot,850-8
Overview, GC system components, 510-5
Oxygen trap description, 520-8
P
P aux bad fact cal,850-21
P aux calib deleted, 830-6
PCB pneumatics board replacement,430-14
PCM, replacing, 270-2
PCOC See Cool On-Column inlet
Personal computer specifications
,510-5
Pipe-thread connections, 520-7
Plastic covers, 1330-4
Plumbing assemblies, replacing,240-23
Pneu aux
Bad cksum
,850-20
Invalid pid,850-19
I/O failure, 850-21
Pneu board FPGA, 850-1
Pneumatics
Direct mode
,250-5
Fan removal, 410-18
Split mode, 250-1
Splitless mode, 250-2
Pneumatics board,850-1
Replacement,430-14
Pneumatics Control Module
Replacement procedures
,270-2
Theory of Operation, 270-1
Power board
Circuitry diagram
, 1230-7
Connector circuitry diagram, 1220-6
Power cord
Requirements
, 530-2
Terminations,530-4
Power on in progress, 820-9
Power requirements
6890 GC
, 530-1
Cord,530-2
Maximum consumption,530-2
Oven type,530-2
Voltages,530-2
Power supply
AC board connectors
, 1230-5
AC board IPB, 1360-4
Fuses, 1230-4
IPB, 1360-2
Oven heater fuses, 1230-2
Oven heater shroud, 1230-3
Voltage configuration, 1230-1
Power transformer replacement,430-17
Pre run,250-4
Pressure check, valves, 1150-5
Pressure programming and gas saver,250-7
Pressure regulators
Connecting to gas tubing
, 520-7
Pipe-thread connections,520-7
Recommendations,520-7
Printer specifications,510-5
Programmable Cool On-Column inlet See Cool
On-Column inlet
Programmed Temperature Vaporization Inlet
IPB
, 1310-22
Manifold IPB, 1310-24
Theory of Operation, 240-1
Programmed temperature vaporization inlet
Leak points
,240-45
Leak test, 240-39
Proportional control valve, troubleshooting,
840-4
PTV
Replacing with cooling assembly
,240-16
PTV inlet, replacing,240-13
PTV LCO
2
CryoAssy, 1310-26
PTV LN
2
CryoAssy, 1310-27
PTV manifold, leak test, 240-42, 250-26, 270-7
PTV thermocouple PCB, replacing,240-25
Pulsed split mode, 210-2
Pulsed splitless mode, 210-4, 240-8
Purged/Packed inlet
Consumables
, 1310-18
EPC manifold replacement, 220-8
Heater/sensor, 220-5
IPB, 1310-12
Leak points,220-19
Leak test, 220-10
Manifold IPB, 1310-14, 1310-34
Replacement,220-4
Theory of operation, 220-1