Agilent infinitylab lc series 1260 infinity ii degasser (g7122a) user manual

Agilent InfinityLab LC Series

1260 Infinity II Degasser

User Manual

Agilent Technologies


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© Agilent Technologies, Inc. 2016

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document that conflict with these
terms, the warranty terms in the separate agreement shall control.

Manual Part Number
G7122-90000 Rev. B

Edition
11/2016
Printed in Germany
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applicable in any technical data.

Safety Notices

C AU T I O N
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hazard. It calls attention to an
operating procedure, practice, or
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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.

Technology Licenses

WA R N I N G

The hardware and/or software described in
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license and may be used or copied only in
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and Agencies of the U.S. Government will

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.

1260 Infinity II Degasser User Manual


In This Guide...

In This Guide...

This manual covers the Agilent InfinityLab LC Series 1260 Infinity II Degasser
(G7122A).

1 Introduction
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.

4 Troubleshooting and 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.

7 Identifying Cables
This chapter provides information on cables used with the Agilent InfinityLab
LC Series modules.

1260 Infinity II Degasser User Manual

3


In This Guide...

8 Hardware Information
This chapter describes the detector in more detail on hardware and
electronics.

9 Appendix
This chapter provides additional information on safety, legal and web.

4

1260 Infinity II Degasser User Manual


Contents

Contents

1 Introduction

7

Introduction to the Degasser 8
Product Description 9
Features 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 24

When to Use a Degasser? 25
Solvent Information 26
Prevent Blocking of Solvent Filters
4 Troubleshooting and Diagnostics

32
33

Module Status Indicator 34
Hardware Symptoms 35
5 Maintenance

39

Warnings and Cautions 40
Simple Repairs - Maintenance 42
Clean the Instrument 43
Assemble the Main Cover 44
Check and Change the Power Fuses

1260 Infinity II Degasser User Manual

45

5


Contents

6 Parts for Maintenance and Repair

Cover Parts 48
Accessory Kit Contents
7 Identifying Cables

47

50

51

Cable Overview 52
Analog Cables 54
Remote Cables 56
CAN/LAN Cables 60
RS-232 Cables 61
USB Cables 62
8 Hardware Information

63

Electrical Connections 64
Interfaces 66
Instrument Layout 68
9 Appendix

69

General Safety Information 70
The Waste Electrical and Electronic Equipment (WEEE) Directive
(2002/96/EC) 76

Radio Interference 77
Sound Emission 78
Agilent Technologies on Internet 79

6

1260 Infinity II Degasser User Manual


1260 Infinity II Degasser User Manual

1
Introduction
Introduction to the Degasser
Product Description
Features

8

9

10

Leak and Waste Handling
Waste Concept 14

11

This chapter gives an introduction to the module, the operations modes and
the module control.

Agilent Technologies

7


1

Introduction
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.

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FLUFXLW

9DFXXP
SXPS

3XPS

7XEXODU
SODVWLF
PHPEUDQHV
6ROYHQW

9DFXXPFRQWDLQHU

Figure 1

8

Overview (only one of the four solvent channels is shown)

1260 Infinity II Degasser User Manual


Introduction
Product Description

1

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.
Status indicator

Power switch

Leak drain

Figure 2

Overview of the Degasser

1260 Infinity II Degasser User Manual

9


1

Introduction
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.

10

1260 Infinity II Degasser User Manual


Introduction
Leak and Waste Handling

1

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

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1

12

Introduction
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


Introduction
Leak and Waste Handling

Figure 5

1

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

13


1

Introduction
Leak and Waste Handling

Waste Concept
1 Agilent 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.

14

1260 Infinity II Degasser User Manual


1260 Infinity II Degasser User Manual

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.

Agilent Technologies

15


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.

WA R N I N G

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.

WA R N I N G

The module is partially energized when switched off, as long as the power cord is
plugged in.
Repair work at the module can lead to personal injuries, e.g. electrical shock, when
the cover is opened and the module is connected to power.

➔ Always unplug the power cable before opening the cover.
➔ Do not connect the power cable to the instrument while the covers are removed.

WA R N I N G

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.

16

1260 Infinity II Degasser User Manual


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.

WA R N I N G

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.

WA R N I N G

Unintended use of supplied 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.

WA R N I N G

Power cords
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

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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.

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.

Condensation
C AU T I O N

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.

18

1260 Infinity II Degasser User Manual


2

Site Requirements and Specifications
Physical Specifications

Physical Specifications

Table 1

Physical Specifications

Type

Specification

Weight

7 kg

Dimensions (height × width
× depth)

80 x 396 x 436 mm

Line voltage

100 – 240 V~, ± 10 %

Line frequency

50 or 60 Hz, ± 5 %

Power consumption

5W

Ambient operating
temperature

4–55 °C (39–131 °F)

Ambient non-operating
temperature

-40 – 70 °C (-40 – 158 °F)

Humidity

< 95 % r.h. at 40 °C (104 °F)

Operating altitude

Up to 3000 m (9842 ft)

Non-operating altitude

Up to 4600 m (15092 ft)

For storing the module

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

Comments

Wide-ranging
capability

Non-condensing

19


2

Site Requirements and Specifications
Performance Specifications

Performance Specifications

Table 2

20

Performance Specifications 1260 Infinity II Degasser (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
solvent

PTFE, PEEK

pH range

1 – 14

Analog output (AUX)

For pressure monitoring, range 0 – 3 V

1260 Infinity II Degasser User Manual


1260 Infinity II Degasser User Manual

3
Using the Degasser

Magnets
Turn on/off

22
23

Status Indicators

24

When to Use a Degasser?

25

Solvent Information 26
Material Information 26
Prevent Blocking of Solvent Filters

32

This chapter provides information for optimized usage of the module.

Agilent Technologies

21


3

Using the Degasser

Magnets

Magnets

1 This stack exemplarily shows the magnets' positions in the modules.

22

1260 Infinity II Degasser User Manual


Using the Degasser
Turn on/off

3

Turn on/off

1

2

Power switch
(1) On
(2) Off

3

1260 Infinity II Degasser User Manual

23


3

Using the Degasser
Status Indicators

Status Indicators

1 The module status indicator indicates one of six possible module
conditions:

Status indicators
1. Idle
2. Run mode
3. Not-ready. Waiting for a specific pre-run condition to be reached or
completed.
4. Error mode - interrupts the analysis and requires attention (for example
a leak or defective internal components).
5. Resident mode (blinking) - for example during update of main firmware.
6. Bootloader mode (fast blinking). Try to re-boot the module or try a
cold-start. Then try a firmware update.

24

1260 Infinity II Degasser User Manual


Using the Degasser

When to Use a Degasser?

3

When to Use a Degasser?
WA R N I N G

Unspecified Conditions
Operating the instrumentation under conditions other than its intended use might
result in a potential safety hazard or might damage the instrumentation.
➔ Never operate your instrumentation under conditions other than those specified by

the vendor.

Pumps that mix the solvent on the low pressure side need degassing and must
be equipped with a degasser or alternative degassing systems (for example,
helium). Isocratic pumps and high-pressure mixing pumps do not always
require degassing. However for the following conditions the degasser is also
recommended for an isocratic or a high pressure mixing pump:
• if your detector is used with maximum sensitivity in the low UV wavelength
range,
• if your application requires optimum injection precision, or
• if your application requires highest retention time reproducibility
(mandatory at flow rates below 0.5 mL/min),
• if your sample or detection is sensitive to dissolved oxygen in the mobile
phase (degradation).
Generally a degasser should be used when negative effects due to dissolved gas
in the mobile phase exceed the limits that are acceptable for the user. Negative
effects that can be caused by dissolved gas are:
• Unstable flow due to unstable pumping conditions. This may result in a

high ripple (unstable pressure at constant flow and with constant mobile
phase composition) or high standard deviations of peak retention times and
peak areas especially at low flow rates.
• Baseline noise on detectors that are sensitive to changes in the refractive
index (e.g. RI detector or UV detector in the low UV range, both at
maximum sensitivity).
• Sample degradation.
• Fluorescence quenching due to dissolved oxygen.
• Baseline drift in electrochemical detectors due to dissolved oxygen
especially in reduction mode.

1260 Infinity II Degasser User Manual

25