Agilent Technologies 8453 User manual

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Temperature Control
Accessory for
Agilent 8453 UV-visible
Spectrophotometer
Operator’s Manual

Agilent Technologies Deutschland GmbH
Hewlett-Packard-Strasse 8
76337 Waldbronn
Germany
Copyright Agilent
Technologies 2000
All rights reserved.
Reproduction, adaption,
or translation without
prior written permission
is prohibited, except as
allowed under the
copyright laws.
Part No. 89090-90002
Edition 02/00
Printed in Germany
Warranty
The information
contained in this
document is subject to
change without notice.
Agilent Technologies
makes no warranty of
any kind with regard to
this material,
including, but not
limited to, the implied
warranties or
merchantability and
fitness for a particular
purpose.
Agilent Technologies
shall not be liable for
errors contained herein
or for incidental or
consequential damages
in connection with the
furnishing, performance,
or use of this material.
WARNING
For details of safety,
see Safety Information
on page 191.
Warning Symbols Used
In This Book
The apparatus is marked
with this symbol when
the user should refer to
the instruction manual
in order to protect the
apparatus against
damage.
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Operator’s Manual
Temperature Control Accessory for Agilent 8453 UV-visible
Spectrophotometer

4
In This Book
This handbook describes operation, installation, maintenance and repair,
using GPIB commands, and service of the temperature control accessory.
The handbook has four parts.
Part 1 “Installing and Maintaining Your Temperature Controller” describes
how you install, and maintain your temperature control unit, cell holder
(option #100), external sensor (option #200) and GPIB commands PROM
(option #305).
Part 2 “Using Your Temperature Controller” describes how you operate your
temperature controller; that is the temperature control unit with the cell
holder (option #100) and external sensor (option #200). There is also a
description of what you do in response to the messages that the control unit
displays.
Part 3 “Using GPIB Commands with the Temperature Controller” is intended
to provide information necessary to interface the temperature control unit to
various computer systems, for option #305. It is written from a software
interfacing point of view and assumes that the reader is knowledgeable in
software interfacing concepts.
Part 4 “Servicing the Temperature Controller” is intended only for use by
Agilent Technologies service personnel or other qualified engineers. It
contains a description of the electronics, and information about the service,
cables and connectors, and replacement parts of your temperature
controller.

Contents
5
Part 1 Installing and Maintaining Your Temperature Controller
1 Description
An overview of the temperature control accessory, including
specifications 17
Temperature Control Unit 19
Temperature-Controlled Cell Holder 20
External Sensor 21
GPIB Commands 22
2 Installing Your Controller
How to install your control unit, cell holder, external sensor
and GPIB commands PROM 23
Choosing a Suitable Place 24
Unpacking Your Controller 25
Unpacking the Controller Options 26
Setting Up Your Control Unit 27
Viewing the Control Unit 28
Selecting Voltage 29
Selecting Fuse 30
Connecting Cables 32

6
Contents
Setting Up the Temperature-Controlled Cell Holder 33
Removing the Multicell Transport Cell Holder 33
Removing other Cell Holders 34
Viewing the Cell Holder 34
Installing the Temperature-Controlled Cell Holder 34
Connecting Cables 35
Connecting Flow Cell and Heat Exchanger 36
Setting Up Your External Sensor 38
Viewing the External Sensor 39
Connecting Cables 39
Installing Option #305 for GPIB Commands 40
Installing GPIB Commands PROM and GPIB Cable 40
3 Simple Maintenance
Maintenance tasks you can do on your control unit and cell
holder 43
Changing Fuse 46
Line (Primary) Fuse 46
Internal (Secondary) Fuse 46
Leaking Fittings on Heat Exchanger 49
Stage 1: Disassembling Heat Exchanger 49
Stage 2: Changing Ferrule on Fittings 49
Stage 3: Changing Fitting 50
Stage 4: Reassembling Heat Exchanger 51
Cleaning Cells 53
Removing Cell 53
Replacing Cell 55
Cleaning Heat-Exchanger Tubing 56

Contents
7
Part 2 Using Your Temperature Controller
4 Operating Your Control Unit
How to prepare your control unit for operation 59
Before you Start 61
Turning on Line Power 62
Checking Operation 63
Turning off Line Power 64
Using Functions 65
Selecting Functions 65
Setting Functions 66
Resetting Functions 66
Setting Temperature 67
Example for Setting Temperature 67
Example for Correcting a Wrong Set Temperature 68
Changing Brightness 69
Changing Units 70
Turning off Peltier Element 72
Selecting Stirring 73
Setting System Functions 74
Setting Remote Mode 74
Changing GPIB Address 75
Starting Self-Test Manually 76
Hints for Operation 77

8
Contents
5 Display Summary
A summary of the different control and read-out functions 79
Normal Mode 80
Edit Mode 80
6 Using External Sensor
How to get more accurate temperature monitoring of your
sample 81
7 Messages
The messages that the control unit displays 85
Responding to Messages 87
OVERLOAD! 87
WARNING 1 87
WARNING 2 89
Display Messages 90
OUT OF RANGE 90
Status Messages 91
Status Lamps 92
Ready 92
Error 92
Stirrer 92

Contents
9
Part 3 Using GPIB Commands with the Temperature Controller
8 Communicating GPIB Commands
Controlling and communicating with the temperature control
unit 95
Communication Interface 96
Remote Mode 97
GPIB Control 98
Service Request 99
Trigger Lines 99
Device Clear 99
9GPIBCommands
The GPIB commands for controlling the temperature control
unit 101
Buffers 102
Instruction Format 103
General Description 103
Detailed Description 104
CSM –Agilent ChemStation Mode 105
ERR –Error 107
EXT –External Temperature 111
IDY –Identify 112
MSK –Service Request Mask 113
PEL –Peltier 115

10
Contents
REM –Remote 116
SET –Set Cell Temperature 117
SEU –Select Unit 118
SPE –Speed 119
STA –Status 120
STR –Stirrer 122
TEM –Cell Temperature 123
TRA –Trigger Acknowledge 124
TRG –Trigger Out 125
TST –Test 126