Agilent Technologies 990 Manual de usuario

Agilent 990

Micro Gas Chromatograph

User Manual

Notices

No part of this manual may be reproduced in

any form or by any means (including electronic

storage and retrieval or translation into a for-

eign language) without prior agreement and

written consent from Agilent Technologies,

Inc. as governed by United States and interna-

tional copyright laws.

Manual Part Number

G3588-90010

Edition

Third edition, August 2022

Printed in USA

Agilent Technologies, Inc.

412 Ying Lun Road

Waigoaqiao Free Trade Zone

Shanghai 200131 P.R.China

Warranty

The material contained in this document is

provided “as is,” and is subject to being

changed, without notice, in future editions.

Further, to the maximum extent permitted by

applicable law, Agilent disclaims all warran-

ties, either express or implied, with regard to

this manual and any information contained

herein, including but not limited to the implied

warranties of merchantability and fitness for

a particular purpose. Agilent shall not be lia-

ble for errors or for incidental or consequen-

tial damages in connection with the

furnishing, use, or performance of this docu-

ment or of any information contained herein.

Should Agilent and the user have a separate

written agreement with warranty terms cov-

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flict with these terms, the warranty terms in

the separate agreement shall control.

Technology Licenses

The hardware and/or software described in this

document are furnished under a license and

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and technical data rights granted to the federal

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Safety Notices

CAUTION

A CAUTION notice denotes a

hazard. It calls attention to an

operating procedure, practice, or the

like that, if not correctly performed

or adhered to, could result in

damage to the product or loss of

important data. Do not proceed

beyond a CAUTION notice until the

indicated conditions are fully

understood and met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or the

like that, if not correctly performed

or adhered to, could result in

personal injury or death. Do not

proceed beyond a WARNING notice

until the indicated conditions are

fully understood and met.

Agilent 990 Micro GC User Manual 3

Contents

1Introduction

Safety Information 10

Important safety warnings 10

Hydrogen safety 10

Safety symbols 11

Safety and regulatory information 12

General safety precautions 12

Shipping Instructions 14

Cleaning 14

Instrument Disposal 14

2 Instrument Overview

Principle of Operation 16

Front View 17

Front inside view 18

Rear View 19

Rear inside view 21

Communication Ports 23

Connecting a Channel Extension Cabinet 24

Carrier Gas Connection 26

Power 27

Power source 27

Power requirements 27

Disposal 28

Specifications 28

Ambient Pressure 29

Ambient Temperature 29

Maximum Operation Altitude 29

Storage requirements 29

Micro GC Cycle with Constant Pressure 30

Micro GC Cycle with Ramped Pressure 31

3 Installation and Use

Pre-Installation Requirements 34

Inspect the Shipping Packages 34

4Agilent 990 Micro GC User Manual

Unpack the Micro GC 34

Review the Packing List 35

Agilent 990 Micro GC Installation 36

Step 1: Connect carrier gas 36

Step 2: Connect to calibration gas or checkout sample 36

Step 3: Install power supply 36

Step 4: Connect to computer or local network 37

Step 5: Install the Chromatography Data System 37

Step 6: Assign an IP address 37

Step 7: Complete Agilent 990 Micro GC configuration in the Chromatography Data

System 38

Create the Test Method 39

Perform a Series of Runs 40

Shut Down Procedure 41

Long Storage Recovery Procedure 41

4 Sample Gas Handling

Installing Sample Inlets 44

Installing and configuring a sample inlet manifold 44

Sample inlet configurations 46

Using the External Filter Unit 47

Heated Zones 48

Connecting a Sample to the 990 Micro GC 49

Front inlet 49

Connecting sample inlet accessories 49

990 Micro GC Optional Pressure Regulators 50

G3588-68863 50

G3588-68864 53

Manual Injection 56

Manual injection guidelines 56

Injection procedure 56

Manual injection flow diagram 58

Manual injection kits 58

5 Micro GC Channels

Carrier Gas 62

Dynamic Electronic Gas Control (DEGC) 63

Inert Sample Path 63

Agilent 990 Micro GC User Manual 5

Injector 63

Column 64

Molsieve 5Å columns 65

CP-Sil 5 CB columns 66

CP-Sil 13 CB and CP-Sil 19 CB columns 67

PoraPlot 10 m column 68

HayeSep A 40 cm heated column 69

COXand Al203/KCI columns 70

Volamine Column 71

MES (NGA) and CP-WAX 52 CB columns 72

Column conditioning 73

Replacing Channel Column, Injector Die, and TCD 74

Backflush Option 75

Tuning the backflush time (except on a HayeSep A channel) 77

Tuning the backflush time on a HayeSep A channel 78

Backflush to Detector 79

CP-Sil 5 CB Backflush to detector 79

Al2O3 Backflush to detector 79

Tuning the backflush time 80

To disable backflush 81

Set invert signal time 82

Checkout information 83

C6+ Calorific value calculation 84

TCD Detector 84

6 Channel Exchange and Installation

Replacement Procedure for Micro GC Channel 86

Tools required 86

Channel removal procedure 86

Channel installation procedure 91

7 Replacement Procedures

Removing the Covers 94

Removing the front cover 94

Removing the rear covers 95

Sample Line Replacement 97

Tools required 97

Replacement procedure for Micro GC sample line 97

RTS Filter Replacement 100

Tools required 100

6Agilent 990 Micro GC User Manual

Replacement procedure for Micro GC RTS filter 100

Septum Replacement for Manual Injection 103

Septum injection port 103

Genie Filter Membrane Replacement 104

Tools required 104

Replacement procedure for Genie Filter membrane 104

Connecting the External LCD 106

LCD touch screen 106

8Communications

Access the Connection Ports 112

990 Chromatography Data Systems 115

Ethernet Networks 116

IP Addresses 116

Example network configurations 117

Subnet 1 119

Subnet 2 119

USB Wi-Fi 120

Frequently Asked Questions (FAQ) 121

Glossary of network terms 121

External I/O 123

9Errors

Error Handling 128

Error List 129

10 Micro GC Biogas Analyzers

Biogas Analyzer 135

Biogas Analyzer Extended 135

Checkout Information 136

CP-Molsieve channel 137

CP-PoraPLOT U channel 138

CP Sil 5 CB channel 139

Certificate of the Universal Gas Calibration Standard 140

The Biogas Analyzer Method 141

11 Micro GC Natural Gas Analyzer

Agilent 990 Micro GC - Natural Gas Analyzers 144

Agilent 990 Micro GC User Manual 7

Introduction 144

Types of Agilent 990 Micro GC - Natural Gas Analyzers 144

Agilent 990 Micro GC - Natural Gas Analyzer A and the Extended Version 144

Agilent 990 Micro GC - Natural Gas Analyzer B and the Extended Version 145

Checkout Information 146

Introduction 146

Natural Gas Analyzer A and the A Extended Version 147

Natural Gas Analyzer B and B Extended Version 154

Certificate of the NGA Gas Calibration Standard 160

Certificate of the Universal Gas Calibration Standard 161

Typical Method Settings for Natural Gas Analyzers 162

Carrier Gas Type Configuration 164

Procedure to change the carrier gas type 165

Method for CP-Molsieve 5A Channel with Carrier Gas Argon 168

8Agilent 990 Micro GC User Manual

Agilent 990 Micro GC User Manual 9

1Introduction

Safety Information 10

Shipping Instructions 14

Cleaning 14

Instrument Disposal 14

This chapter provides important information about using the Agilent 990 Micro Gas

Chromatograph, Micro GC, safely. To prevent any injury to you or any damage to the instrument, it

is essential that you read the information in this chapter.

1Introduction

Safety Information

10 Agilent 990 Micro GC User Manual

Safety Information

Important safety warnings

There are several important safety notices that you should always keep in mind when using the

Micro GC.

WARNING

When handling or using chemicals for preparation or use within the Micro GC, all applicable local

and national laboratory safety practices must be followed. This includes, but is not limited to,

correct use of Personal Protective Equipment, correct use of storage vials, and correct handling

of chemicals, as defined in the laboratory’s internal safety analysis and standard operating

procedures. Failure to adhere to laboratory safety practices could lead to injury or death.

Hydrogen safety

Hydrogen is a commonly used GC carrier gas. When mixed with air, hydrogen can form explosive

mixtures and has other dangerous characteristics.

WARNING

When using hydrogen (H2) as the carrier gas, be aware that hydrogen gas can create a fire or

explosion hazard. Ensure that the supply is turned off until all connections are made.

Hydrogen is flammable. Leaks, when confined in an enclosed space, may create a fire or

explosion hazard. In any application using hydrogen, leak test all connections, lines, and valves

before operating the instrument. Always turn off the hydrogen supply at its source before

working on the instrument.

•Hydrogen is combustible over a wide range of concentrations. At atmospheric pressure,

hydrogen is combustible at concentrations from 4 % to 74.2 % by volume.

•Hydrogen has the highest burning velocity of any gas.

•Hydrogen has a very low ignition energy.

•Hydrogen that is allowed to expand rapidly from high pressure into the atmosphere can

self-ignite.

•Hydrogen burns with a nonluminous flame which can be invisible under bright light.

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