Agilent Technologies 6890 Series User Manual

17
The Keyboard and Display
The display
The display
Think of this as a window through which you view the control tables. The top
line is a title—the other lines show the table content. If the table is more than
three lines long, use the scroll keys to see the additional lines.
Scroll keys (▲,▼)
Move the control table up or down in the display window.
The cursor (<)
Points to the line that is in editing position. Changes that you make using the
keyboard apply to the “cursored” line.
Asterisk (*)
A blinking asterisk prompts you to press [Enter] to store a setpoint or [Clear] to abort the
entry. You cannot perform any other task until this is done.
The asterisk on the left of a Mode/Type table indicates the current selection.
If this asterisk blinks, you cannot perform
any other function until you press [Enter]
or [Clear].
Press [Mode/Type] twice.

Agilent Technologies 6890 Series Specifications

General

Brand	Agilent Technologies
Model	6890 Series
Category	Laboratory Equipment
Language	English

Summary

The 6890 Series Gas Chromatograph

Control Tables

General Warnings

Covers safety precautions related to dangerous voltages, static discharge, and hot parts.

Shutting Down the GC

The Keyboard and Display

The Keyboard

Flow and Pressure Control

Part 1. Electronic Pneumatic Control (EPC)

Details EPC functions including readings interpretation, configuration, columns, detectors, and calibration.

Measuring Flow Rates

Flow and Pressure Problems

Troubleshooting common issues related to gas flow and pressure control in the GC.

The Column Oven

Oven Configuration and Operation

Temperature Programming

Explains single and multiple ramp temperature programs for achieving desired oven profiles.

Fast Chromatography Options

Cryogenic Operation

Columns and Traps

Capillary Columns

Information on capillary column installation, preparation, and types.

Packed Metal Columns

Details on installing packed metal columns, related fittings, and preparation.

Packed Glass Columns

Covers the overview and installation procedures for glass packed columns.

Signal Handling

Signal Control Tables

Analog Output Settings

Covers adjusting zero, range, and attenuation for analog output signals for recorders.

Column Compensation

Instrument Automation

Executing Events During the Run

Covers programming timed events using run time and clock time tables.

Run Time Programming

Allows setpoints to change automatically during a run based on chromatographic run time.

Clock Time Programming

Allows setpoints to change automatically at specified times during a 24-hour day.

Analytical Methods

Understanding and Using Methods

Creating and Managing Methods

Step-by-step procedures for creating, storing, loading, and deleting methods.

Method Mismatch

Valve Control

Valve Control

Covers manual and programmed control of valves, valve drivers, and internal/external drivers.

Valve Configurations

Valve Control Examples

The Automatic Liquid Sampler

Part 1. The 7673 ALS

Information on configuring and using the 7673 ALS automatic liquid sampler.

Part 2. The 7683 ALS

Information on configuring and using the 7683 ALS automatic liquid sampler.

Analytical Sequences

Sequence Definition and Components

Creating Sequences

Managing Sequences

Sequence Control

Details sequence status, starting, pausing, stopping, and aborting analytical sequences.

Messages

Not Ready Messages

Shutdown Messages

Fault Messages