Agilent Technologies InfinityLab LC Series User manual

1260 Infinity II Degasser
Agilent InfinityLab LC Series
User Manual
1260 Infinity II Degasser User Manual

1260 Infinity II Degasser User Manual
Notices
Document Information
Document No: SD-29000216
Part No: G7122-90000 Rev. C
EDITION 03/2020
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1260 Infinity II Degasser User Manual 3
In This Guide...
This manual covers the Agilent InfinityLab LC Series 1260 Infinity II Degasser (G7122A).
1Introduction
This chapter gives an introduction to the module, the operations modes and the
module control.
2 Site Requirements and Specifications
This chapter provides information on environmental requirements, physical and
performance specifications.
3 Using the Degasser
This chapter provides information for optimized usage of the module.
4Troubleshootingand Diagnostics
Overview about the troubleshooting and diagnostic features.
5 Maintenance
This chapter describes the maintenance of the module.
6 Parts for Maintenance and Repair
This chapter provides information on parts for maintenance.
7IdentifyingCables
This chapter provides information on cables used with the Agilent InfinityLab LC
Series modules.
8 Hardware Information
This chapter describes the detector in more detail on hardware and electronics.
9Appendix
This chapter provides additional information on safety, legal and web.

1260 Infinity II Degasser User Manual 4
Contents
1Introduction6
Introduction to the Degasser 7
Product Description 8
Features 9
Operating Principle 10
Leak and Waste Handling 11
2 Site Requirements and Specifications 15
Site Requirements 16
Physical Specifications 19
Performance Specifications 20
3 Using the Degasser 21
Magnets 22
Turn on/off 23
Status Indicators 25
When to Use a Degasser? 26
Solvent Information 28
Prevent Blocking of Solvent Filters 34
4 Troubleshooting and Diagnostics 35
Module Status Indicator 36
Hardware Symptoms 37

1260 Infinity II Degasser User Manual 5
5 Maintenance 40
Warnings and Cautions 41
Simple Repairs - Maintenance 43
Clean the Instrument 44
Assemble the Main Cover 45
Check and Change the Power Fuses 46
6 Parts for Maintenance and Repair 48
Cover Parts 49
Accessory Kit Contents 51
7IdentifyingCables52
Cable Overview 53
Analog Cables 55
Remote Cables 57
CAN/LAN Cables 61
RS-232 Cables 62
USB Cables 63
8 Hardware Information 64
Electrical Connections 65
Interfaces 67
Instrument Layout 69
9Appendix70
General Safety Information 71
Waste Electrical and Electronic Equipment (WEEE) Directive 77
Radio Interference 78
Sound Emission 79
Agilent Technologies on Internet 80

1260 Infinity II Degasser User Manual 6
1Introduction
Introduction to the Degasser 7
Product Description 8
Features 9
Operating Principle 10
Leak and Waste Handling 11
Waste Concept 14
This chapter gives an introduction to the module, the operations modes and the
module control.

1260 Infinity II Degasser User Manual 7
1Introduction
Introduction to the Degasser
Introduction to the Degasser
The Agilent 1260 Infinity II Degasser G7122A comprises a 4-channel vacuum
container, including 4 tubular plastic membranes, and a vacuum pump. When the
degasser is switched on, the control circuit turns on the vacuum pump which
generates a partial vacuum in the vacuum container. The pressure is meassured
by a pressure sensor. The vacuum degasser maintains the low pressure by a
controlled leak in the air inlet filter and a regulation of the vacuum pump using the
pressure sensor.
The LC pump draws the solvents from their bottles through the special tubular
plastic membranes of the vacuum container. As the solvents pass through the
vacuum tubes any dissolved gas in the solvents permeates through the
membranes into the vacuum container. The solvents will be almost completely
degassed when leaving the outlets of the degasser.
Figure 1 Overview (only one of the four solvent channels is shown)
Pump
Sensor Control
circuit
Vacuum
pump
4 Tubular
plastic
membranes
Vacuum container
Solvent

1260 Infinity II Degasser User Manual 8
1Introduction
Product Description
Product Description
The 1260 Infinity II Degasser is a standalone module for systems without internal
Degasser or for usage with special applications. It reduces baseline noise and
quenching effects. In fluorescence detection, lower detection limits and
long-term baseline stability are achieved with the degasser. Degassing is strongly
recommended for GPC/SEC applications using refractive index detection.
Figure 2OverviewoftheDegasser
Status indicator
Power switch
Leak drain

1260 Infinity II Degasser User Manual 9
1Introduction
Features
Features
•Robust design for high instrument uptime. The degassing principle is based
on passing solvents through a membrane tube that is permeable to gas but
not to liquid, and kept at a constant vacuum level.
•Reduced baseline noise and quenching effects through high degassing
capacity. In fluorescence detection, this results in lower detection limits and
long-term baseline stability.
•Strongly recommended for GPC/SEC applications using refractive index
detection.

1260 Infinity II Degasser User Manual 10
1Introduction
Operating Principle
Operating Principle
Once the degasser started, the status indicator is amber ("Not-ready") and the
degasser vacuum pump tries to reach a target pressure below 100 mbar/hPa. If
this limit cannot be reached within 16 minutes, an error is thrown and the status
indicator switches to red ("Error mode"). As soon as the limit has been reached,
which typically happens within about 8 minutes, the pump goes to a continuous
regulation mode, where the pump tries to regulate to 100 mbar/hPa target
pressure. If this pressure limit cannot be reached, it is increased stepwise to a
maximum of 160 mbar and the status indicator switches to amber. If a stable
pressure between 100 mbar and 160 mbar max. can be kept, the status indicator
switches off ("Idle"). If the maximum limit of 160 mbar is exceeded, the status
indicator switches to red and an error is thrown.

1260 Infinity II Degasser User Manual 11
1Introduction
Leak and Waste Handling
Leak and Waste Handling
The Agilent InfinityLab LC Series has been designed for safe leak and waste
handling. It is important that all security concepts are understood and
instructions are carefully followed.
The solvent cabinet is designed to store a maximum volume of 8 L solvent. The
maximum volume for an individual bottle stored in the solvent cabinet should not
exceed 2 L. For details, see the usage guideline for the Agilent 1200 Infinity Series
Solvent Cabinets (a printed copy of the guideline has been shipped with the
solvent cabinet, electronic copies are available on the Internet).
All leak plane outlets are situated in a consistent position so that all Infinity and
Infinity II modules can be stacked on top of each other. Waste tubes are guided
through a channel on the right hand side of the instrument, keeping the front
access clear from tubes.
The leak plane provides leak management by catching all internal liquid leaks,
guiding them to the leak sensor for leak detection, and passing them on to the
next module below, if the leak sensor fails. The leak sensor in the leak plane
stops the running system as soon as the leak detection level is reached.
Solvent and condensate is guided through the waste channel into the waste
container:
•from the detector's flow cell outlet
•from the Multisampler needle wash port
•from the Sample Cooler (condensate)
•from the Seal Wash Sensor
•from the pump's Purge Valve or Multipurpose Valve

1260 Infinity II Degasser User Manual 12
1Introduction
Leak and Waste Handling
Figure 3 Infinity II Leak Waste Concept (flexible rack installation)
Figure 4 Infinity II Single Stack Leak Waste Concept (bench installation)

1260 Infinity II Degasser User Manual 13
1Introduction
Leak and Waste Handling
Figure 5 Infinity II Two Stack Leak Waste Concept (bench installation)
The waste tube connected to the leak pan outlet on each of the bottom
instruments guides the solvent to a suitable waste container.

1260 Infinity II Degasser User Manual 14
1Introduction
Leak and Waste Handling
Waste Concept
1Agilent recommends using the 6 L waste can with 1 Stay Safe cap GL45 with
4 ports (5043-1221) for optimal and safe waste disposal. If you decide to use
your own waste solution, make sure that the tubes don't immerse in the liquid.

1260 Infinity II Degasser User Manual 15
2 Site Requirements and Specifications
Site Requirements 16
Physical Specifications 19
Performance Specifications 20
This chapter provides information on environmental requirements, physical and
performance specifications.

1260 Infinity II Degasser User Manual 16
2 Site Requirements and Specifications
Site Requirements
Site Requirements
A suitable environment is important to ensure optimal performance of the
instrument.
Power Considerations
The module power supply has wide ranging capability. It accepts any line voltage
in the range described in Table 1 on page 19. Consequently there is no voltage
selector in the rear of the module.
WARNING
Hazard of electrical shock or damage of your instrumentation
can result, if the devices are connected to a line voltage higher than specified.
 Connect your instrument to the specified line voltage only.
WARNING
Electrical shock hazard
The module is partially energized when switched off, as long as the power
cord is plugged in.
The cover protects users from personal injuries, for example electrical shock.
 Do not open the cover.
 Do not operate the instrument and disconnect the power cable in case the
cover has any signs of damage.
 Contact Agilent for support and request an instrument repair service.
WARNING
Inaccessible power plug.
In case of emergency it must be possible to disconnect the instrument from
the power line at any time.
 Make sure the power connector of the instrument can be easily reached
and unplugged.
 Provide sufficient space behind the power socket of the instrument to
unplug the cable.

1260 Infinity II Degasser User Manual 17
2 Site Requirements and Specifications
Site Requirements
Power Cords
Country-specific power cords are available for the module. The female end of all
power cords is identical. It plugs into the power-input socket at the rear. The male
end of each power cord is different and designed to match the wall socket of a
particular country or region.
Agilent makes sure that your instrument is shipped with the power cord that is
suitable for your particular country or region.
WARNING
Unintended use of power cords
Using power cords for unintended purposes can lead to personal injury or
damage of electronic equipment.
Never use a power cord other than the one that Agilent shipped with this
instrument.
Never use the power cords that Agilent Technologies supplies with this
instrument for any other equipment.
Never use cables other than the ones supplied by Agilent Technologies
to ensure proper functionality and compliance with safety or EMC
regulations.
WARNING
Absence of ground connection
The absence of ground connection can lead to electric shock or short
circuit.
Never operate your instrumentation from a power outlet that has no
ground connection.
WARNING
Electrical shock hazard
Solvents may damage electrical cables.
Prevent electrical cables from getting in contact with solvents.
Exchange electrical cables after contact with solvents.

1260 Infinity II Degasser User Manual 18
2 Site Requirements and Specifications
Site Requirements
Bench Space
The module dimensions and weight (see Table 1 on page 19) allow you to place
the module on almost any desk or laboratory bench. It needs an additional
2.5 cm (1.0 inches) of space on either side and approximately 8 cm (3.1 inches)
in the rear for air circulation and electric connections.
If the bench shall carry a complete HPLC system, make sure that the bench is
designed to bear the weight of all modules.
The module should be operated in a horizontal position.
Condensation
NOTE
Agilent recommends that you install the HPLC instrument in the InfinityLab Flex
Bench rack. This option helps to save bench space as all modules can be placed
into one single stack. It also allows to easily relocate the instrument to another
Lab.
CAUTION
Condensation within the module
Condensation can damage the system electronics.
Do not store, ship or use your module under conditions where temperature
fluctuations could cause condensation within the module.
If your module was shipped in cold weather, leave it in its box and allow it to
warm slowly to room temperature to avoid condensation.

1260 Infinity II Degasser User Manual 19
2 Site Requirements and Specifications
Physical Specifications
Physical Specifications
Table 1 Physical Specifications G1322
Type Specification Comments
Weight 7.0 kg (15.4 lbs)
Dimensions
(height × width × depth)
80 x 396 x 436 mm
(3.2 x 15.6 x 17.2 inches)
Line voltage 100 – 240 V~, ± 10 % Wide-ranging capability
Line frequency 50 or 60 Hz, ± 5 %
Power consumption 5 W
Ambient operating tempera-
ture
4–55 °C (39–131 °F)
Ambient non-operating tem-
perature
-40 – 70 °C (-40 – 158 °F)
Humidity < 95 % r.h. at 40 °C (104 °F) Non-condensing
Operating altitude Up to 3000 m (9842 ft)
Safety standards: IEC, EN,
CSA, UL
Installation category II, Pollution degree 2 For indoor use only.
ISM Classification ISM Group 1 Class B According to CISPR 11

1260 Infinity II Degasser User Manual 20
2 Site Requirements and Specifications
Performance Specifications
Performance Specifications
Table 2 Performance Specifications G7122A
Type Specification
Maximum flow rate 10 mL/min per channel
Number of channels 4
Internal volume per channel Typically 12 mL
Materials in contact with sol-
vent
PTFE, PEEK
pH range 1 – 14