Agilent Technologies 1100 Series User manual

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Agilent 1100 Series
Micro Vacuum Degasser
Reference Manual

Agilent Technologies
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. G1379-90000
Edition 06/00
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 85.
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 prevent risk
of harm to the operator
and to protect the
apparatus against
damage.
!

Reference Manual
Agilent 1100 Series Micro Vacuum Degasser

4
In This Book
This manual contains technical reference information about the Agilent 1100
Series micro vacuum degasser. The manual describes the following:
• installation,
• optimizing performance,
• troubleshooting,
• repairing,
• parts and materials,
• theory of operation, and
•specifications.

Contents
5
1 Installing the Micro Vacuum Degasser
How to install the micro vacuum degasser 9
Site Requirements 10
Unpacking the Micro Vacuum Degasser 12
Optimizing the Stack Configuration 14
Installing the Micro Vacuum Degasser 16
Flow Connections to the Micro Vacuum Degasser 18
Transporting the Micro Vacuum Degasser 21
2 Optimizing Performance
How to optimize the micro vacuum degasser to achieve best
chromatographic results 23
Introduction to the Micro Vacuum Degasser 24
When to Use a Micro Vacuum Degasser? 25
Operation Modes of the Micro Vacuum Degasser 26
Operational Hints for the Micro Vacuum Degasser 29
Solvent Information 31
Prevent Blocking of Solvent Filters 32
3 Troubleshooting
Errors, their probable cause, and the action required to correct
them 33
Status Indicators 34
Power Supply Lamp 35
Instrument Status Indicator 35

6
Contents
Hardware Symptoms 36
All Lamps are Off 37
If the Status Indicator is Red 39
If the Status Indicator is Yellow and the Vacuum Pump is not
Running 40
If the Status Lamp is Yellow and the Vacuum Pump Runs
Continuously 41
4 Repairing the Micro Vacuum Degasser
Instructions on how to repair the micro vacuum degasser 45
Cleaning the Instrument 48
Using the ESD Strap 49
Removing and Refitting the Top Cover 50
Assembling the Main Cover 52
Exchanging the Status Light Pipe 53
Overview of Internal Parts 54
Exchanging a Vacuum Chamber 55
Exchanging the Vacuum Pump 57
Exchanging the Solenoid Valve 59
Exchanging the Degasser Control Assembly and the Sensor
Assembly 60
5 Parts and Materials
Detailed illustrations and listings for parts and materials
identification 63
Micro Vacuum Degasser Parts 64

Contents
7
Cover Parts 66
Sheet Metal Kit 67
Power and Status Light Pipes 68
Accessory Kit 69
Cable Overview 70
Remote Cables 71
Auxiliary Cable 72
6 Theory of Operation
The vacuum degasser’s operation and electronics 73
How the Electronics Work 74
7 Specifications
Performance specifications of the micro vacuum degasser 79
Performance Specifications 80
Legal, Safety and Warranty Information 81
Warranty Statement 82
Safety Information 85
Radio Interference 88
Sound Emission 88
Agilent Technologies on Internet 89

8
Contents

1
1Installing the Micro
Vacuum Degasser
How to install the micro vacuum degasser

10
Installing the Micro Vacuum Degasser
Site Requirements
Site Requirements
A suitable environment is important to ensure optimum performance of the
micro vacuum degasser.
Power Considerations
The micro vacuum degasser power supply has wide-ranging capability (see
Table 1). It accepts any line voltage in the range mentioned below.
Consequently there is no voltage selector in the rear of the micro vacuum
degasser. There are two externally accessible fuses, that protect the power
supply.
WARNING Shock hazard or damage of your instrumentation can result, if the
devices are connected to a line voltage higher than specified.
WARNING Never use cables other than the ones supplied by Agilent Technologies
to ensure proper functionality and compliance with safety or EMC
regulations.
Power Cords
Different power cords are offered as options with the micro vacuum
degasser. The female end of each of the power cords is identical. It plugs into
the power-input socket at the rear of the micro vacuum degasser. The male
end of each of the power cords is different and designed to match the wall
socket of a particular country or region.
WARNING Never operate your instrumentation from a power outlet that has no
ground connection. Never use a power cord other than the power cord
designed for your region.
Bench Space
The micro vacuum degasser dimensions and weight (see Table 1) allow to
place the micro vacuum degasser on almost any desk or laboratory bench. It
needs an additional 2.5 cm (1.0 inches) of space at either side and
approximately 8 cm (3.1 inches) at the rear for the circulation of air and
electric connections.