Agilent Technologies 8453 Manuale utente

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

Reproduction, adaption,

or translation without

prior written permission

is prohibited, except as

allowed under the

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.

KEL-F is a registered

trademark of 3M

Company, Chemical

Division.

Teflon is a registered

trademark of E.I.

DuPont de Nemours &

Co., Inc.

MS-DOS is a registered

trademark of Microsoft

Corporation.

Operator’s Manual

Temperature Control Accessory for Agilent 8453 UV-visible

Spectrophotometer

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

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

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

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

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

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

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

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