Agilent Technologies 7683 User manual

Agilent 7683 Automatic Liquid Sampler
Service Manual

Agilent 7683 Automatic Liquid Sampler
Service Manual
Table of Contents
MAR 2000 i
Chapter System Overview
Modules ................................................................................................................ 2
Compatibility ....................................................................................................... 2
Sa ety .................................................................................................................... 3
Caution ......................................................................................................... 3
Warnings ....................................................................................................... 3
Chapter 2 Installation
Tray (7683 Installation Guide).................................................................
Injector (7683 Installation Guide)............................................................
Bar code reader (7683 Installation Guide)...............................................
Chapter 3 Configuration and Cabling
Connecting cabling (7683 Installation Guide) ..............................................
Cabling pinouts, 6890 GC (6890 Service Manual).........................................
Pinouts ................................................................................................................. 8
Tray connector P1, to 6850/6890 GC ......................................................... 8
Tray connector P9, to the bar code reader .............................................. 9
Tray connector J1, auxiliary ...................................................................... 9
Chapter 4 Diagnostics
Theory o operation ............................................................................................ 12
G2612A ALS Inter ace board ...................................................................... 12
6850 GC ......................................................................................................... 12
G2613A Injector ........................................................................................... 12
G2614A Tray ................................................................................................. 13

Contents
ii MAR 2000
Correcting syringe problems (7683 Installation Guide).......................
Correcting vial delivery problems (7683 Installation Guide) ..............
Fault lights (7683 Installation Guide).....................................................
Error messages (7683 Installation Guide) .............................................
Chapter 5 Replacement Procedures
Replacing the mounting post ............................................................................ 16
Replacing the G2614A Tray ............................................................................... 17
Replacing the G2613A Injector ......................................................................... 19
Replacing the G1926A Bar Code Reader ......................................................... 21
Adjusting the bar code reader position .................................................... 22
Replacing the ALS inter ace board, 6890 GC
(6890 Service Manual)...................................................................................
Replacing the needle support assembly
(7683 Installation Guide) .............................................................................
Replacing the needle guide in the support oot
(7683 Installation Guide) .............................................................................
Removing the turret (7683 Installation Guide).............................................
Turret alignment (7683 Installation Guide) ..................................................
Making a trial run ............................................................................................... 23
Chapter 6 Illustrated Parts Breakdown
ALS Inter ace Board, part no. G2612A...............................................................
Injector, part no. G2613A ................................................................................... 26
Tray, part no. G2614A ........................................................................................ 28

1
System Overview
Modules......................................................................................2
Compatibility.............................................................................2
Sa ety..........................................................................................3

2MAR 2000
Chapter
System Overview
Modules
The 7683 Automatic Liquid Sampler system, shown in Figure 1, can include:
• One G2612A ALS inter ace board (required on 6890 GC, not used on 6850 GC)
• One or two G2613A injector module(s)
• One G2614A 100 vial tray (optional, 6890 GC only)
• One G1926A Bar Code Reader (optional, 6890 GC only)–requires INET
integrator or ChemStation
Figure The 7683 Automatic Liquid Sampler system
Compatibility
A 6890 GC without the ALS inter ace board can use only the 7673 ALS.
A 6890 GC with the ALS inter ace board can use only the 7683 ALS.
The 6850 GC uses only the 7683 ALS.
Sample tray quadrant
Open injector door here
Turret
G2613A Injector
G261 A Tray

System Overview
Safety
MAR 2000 3
Safety
Be ore servicing the various components o the GC, observe the ollowing sa ety
precautions.
Caution
Follow the precautions below when servicing the instrument to avoid data loss
or damage to the instrument.
Printed circuit boards
When storing printed circuit boards (PCBs), always place them in static control
envelopes or enclosures.
Always make sure you are properly grounded (e.g., wearing an ESD strap) be ore
handling electrostatic sensitive components such as printed circuit boards.
Voltage carrying components
When disconnecting plugs, pull on the plug, not its wires. Pulling on the wires
may cause breakage.
Warnings
The ollowing are potential hazards that can cause personal injury.
Heated components
Parts o the injector may become hot. Turn o the GC oven and inlet/detector
heated zones and allow them su icient time to cool be ore servicing those areas.
I you must per orm service on components that have not ully cooled, wear
protective gloves.
Voltage carrying components
Whenever possible, disconnect the G2613A Injector and G2614A Tray rom the
GC be ore working on them.

System Overview
Safety
MAR 2000
Whenever possible, disconnect the GC rom its power source be ore working on
or near voltage carrying components o the GC.
The ollowing components carry voltage when the GC is plugged in even i the
power switch is o :
• The AC power cord
• The AC power supply
When the power to the GC is turned on, potentially dangerous voltages exist on
these additional components:
• The power trans ormer
• All electronics boards
• All internal wires and cables connected to these boards
• The injector, tray, and bar code reader cables that connect to the GC
• All internal wires, cables, and boards in the injector, tray, and bar code
reader

2
Installation
Tray .......................................................................................
Injector..................................................................................
Bar code reader ...................................................................

6MAR 2000