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Agilent 1100 Series
Quaternary Pump
Reference Manual

 Copyright Agilent
Technologies 1999
All rights reserved.
Reproduction, adaption,
or translation without
prior written permission
is prohibited, except as
allowed under the
copyright laws.
Part No. G1311-90003
Edition 01/00
Printed in Germany

Warranty

WARNING

The information
contained in this
document is subject to
change without notice.

For details of safety,
see Safety Information
on page 260.

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.

Agilent Technologies
Hewlett-Packard-Strasse 8
76337 Waldbronn
Germany

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.

Agilent 1100 Series Quaternary Pump

Reference Manual

In This Book

This manual contains technical reference information about the Agilent 1100
Series quaternary pump. The manual describes the following:
• installation,
• optimizing performance,
• troubleshooting,
• repairing,
• parts and materials,
• theory of operation, and
• specifications.

Contents

1 Installing the Pump
How to install the quaternary pump 13
Site Requirements 14
Unpacking the Quaternary Pump 17
Optimizing the Stack Configuration 20
Installing the Quaternary Pump 22
Flow Connections of the Quaternary Pump 25
Priming and Purging the System 28

2 Optimizing Performance
How to optimize the quaternary pump to achieve best chromatographic results 31
Hints for Successful Use of the Quaternary Pump 32
Solvent Information 34
Prevent Blocking of Solvent Filters 35
Operational Hints for the Vacuum Degasser 36
Operational Hints for the Multi Channel Gradient Valve
(MCGV) 37
When to use the Continuous Seal Wash Option 38
When to Use Alternative Seals 39
Optimize the Compressibility Compensation Setting 40

3 Troubleshooting and Test Functions
The quaternary pump’s built-in troubleshooting and test
functions 43
Status Indicators

Contents

Power Supply Indicator 46
Pump Status Indicator 46
Error Messages 47
Timeout 48
Shut-Down 49
Remote Timeout 50
Synchronization Lost 51
Leak 52
Leak Sensor Open 53
Leak Sensor Short 54
Compensation Sensor Open 55
Compensation Sensor Short 56
Fan Failed 57
Open Cover 58
Restart Without Cover 59
Zero Solvent Counter 60
Pressure Above Upper Limit 61
Pressure Below Lower Limit 62
Pressure Signal Missing 63
Missing Pressure Reading 64
Pump Configuration 65
Valve Fuse 66
Inlet-Valve Fuse 67
Valve Failed 68
Motor-Drive Power 69
Encoder Missing 70
Inlet-Valve Missing 71
Temperature Out of Range 72
Temperature Limit Exceeded 73
Servo Restart Failed 74

Contents

Pump Head Missing 75
Index Limit 76
Index Adjustment 77
Index Missing 78
Stroke Length 79
Initialization Failed 80
Wait Timeout 81
Pressure Test 82
Running the Pressure Test 84
Evaluating the Results 86
Leak Test 88
Running the Leak Test 90
Evaluating the Results 92

4 Repairing the Pump
Instructions on simple, routine repair procedures as well as
more extensive repairs requiring exchange of internal
parts 97
Cleaning the Quaternary Pump 99
Using the ESD Strap 100
Overview 101
Simple Repair Procedures 102
Exchanging the Active Inlet Valve Cartridge or the Active Inlet
Valve 103
Exchanging the Outlet Ball Valve 106
Exchanging the Purge Valve Frit or the Purge Valve 108

Contents

Removing and Disassembling the Pump Head Assembly 110
Exchanging the Pump Seals and Seal Wear-in Procedure 112
Exchanging the Plungers 115
Installing the Continuous Seal Wash Option 116
Exchanging the Wash Seals 119
Reassembling the Pump Head Assembly 121
Exchanging the Multi-Channel Gradient Valve (MCGV) 123
Exchanging the optional Interface Board 126
Exchanging Internal Parts 127
Removing the Top Cover and Foam 128
Exchanging the Low Pressure Pump Main Board (LPM
Board) 131
Exchanging the Damper 138
Exchanging the Fan 141
Exchanging the Pump Drive 143
Exchanging the Power Supply 147
Exchanging the Leak Sensor 152
Exchanging the Status Light Pipe
154
Assembling the Main Cover 155
Replacing the Top Cover and Foam 156

5 Parts and Materials
Detailed illustrations and lists for identification of parts and
materials 159
Overview of Main Assemblies 160
Control Module (B-version) 163
Solvent Cabinet 164

Contents

Bottle Head Assembly 165
Hydraulic Path 166
Cover Parts 167
Sheet Metal Kit 168
Foam Parts 169
Power and Status Light Pipes 170
Leak Parts 171
Pump Head Assembly 172
Pump Head Assembly with Seal Wash Option
Outlet Ball Valve Assembly 176
Purge Valve Assembly 177
Active Inlet Valve Assembly 178
Accessory Kit G1311-68705 179
Seal Wash Option Kit 01018-68722 180

174

Cable Overview 181
Analog Cables 183
Remote Cables 185
BCD Cables 190
Auxiliary Cable 192
CAN Cable 192
External Contact Cable 193
RS-232 Cable Kit 194
LAN Cables 195

6 Introduction to the Quaternary Pump
An introduction to the pump, instrument overview, theory of
operation, external communication and internal
connectors 197

Contents

Introduction to the Quaternary Pump 198
Overview 199
Electrical Connections 204
Instrument Layout 206
Early Maintenance Feedback (EMF) 207
The Electronics 209
The Low-Pressure Pump Main Board (LPM) 210
Firmware Description 214
Optional Interface Boards 216
Agilent 1100 Series Interfaces 218
Setting the 8-bit Configuration Switch 223
The Main Power Supply Assembly 228

7 Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen 233
Screens available from the System screen 242
Screens available from the Records screen 244
Diagnostics and Tests 251

8 Specifications
Performance specifications of the quaternary pump
Performance Specifications 254

Warranty Statement 257
Safety Information 260
Lithium Batteries Information

263

253

Contents

Radio Interference 264
Sound Emission 264
Solvent Information 265
Agilent Technologies on Internet

266

Contents

Installing the Pump
How to install the quaternary pump

Installing the Pump
Site Requirements

Site Requirements
A suitable environment is important to ensure optimum performance of the
quaternary pump.

Power Consideration
The quaternary pump power supply has wideranging capability (see Table 1
on page 16). It accepts any line voltage in the range described in the above
mentioned table. Consequently there is no voltage selector in the rear of the
quaternary pump. There are also no externally accessible fuses, because
automatic electronic fuses are implemented in the power supply.
WAR NI N G

To disconnect the quaternary pump from line, unplug the power cord.
The power supply still uses some power, even if the power switch on
the front panel is turned off.

WAR NI N G

Shock hazard or damage of your instrumentation can result, if the
devices are connected to a line voltage higher than specified.

Power Cords
Different power cords are offered as options with the quaternary pump. The
female end of each of the power cords is identical. It plugs into the
power-input socket at the rear of the quaternary pump. The male end of each
of the power cords is different and designed to match the wall socket of a
particular country or region.
WAR NI N G

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.

WAR NI N G

Never use cables other than the ones supplied by Agilent Technologies
to ensure proper functionality and compliance with safety or EMC
regulations.

Installing the Pump
Site Requirements

Bench Space
The quaternary pump dimensions and weight (see Table 1 on page 16) allow
to place the quaternary pump on almost any 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 the circulation of air and electric connections.
If the bench should carry a complete Agilent 1100 Series system, make sure
that the bench is designed to carry the weight of all the modules.
NOTE

The pump should be operated in a horizontal position!

Environment
Your quaternary pump will work within specifications at ambient
temperatures and relative humidity as described in Table 1 on page 16.
CA UT IO N

Do not store, ship or use your quaternary pump under conditions where
temperature fluctuations could cause condensation within the quaternary
pump. Condensation will damage the system electronics. If your quaternary
pump was shipped in cold weather, leave it in its box and allow it to warm
slowly to room temperature to avoid condensation.

Installing the Pump
Site Requirements

Table 1

Physical Specifications

Type

Specification

Weight

11 kg (25 lbs)

Dimensions
(height × weight × depth)

140 × 345 × 435 mm
(5.5 × 13.5 × 17 inches)

Line voltage

100–120 or 220–240 VAC,

Line frequency

50 or 60 Hz, ± 5%

Power consumption

220 VA

Ambient operating temperature

4–55 °C (41–131 °F)

Ambient non-operating temperature

-40–70 °C (-4–158 °F)

Humidity

< 95%, at 25–40 °C (77–104 °F)

Operating Altitude

Up to 2000 m (6500 ft)

Non-operating altitude

Up to 4600 m (14950 ft)

Safety standards: IEC, CSA, UL

Installation Category II, Pollution Degree 2

Comments

± 10%

Wide-ranging capability

Maximum

Non-condensing

For storing the quaternary
pump

Installing the Pump
Unpacking the Quaternary Pump

Unpacking the Quaternary Pump
Damaged Packaging
Upon receipt of your quaternary pump, inspect the shipping containers for
any signs of damage. If the containers or cushioning material are damaged,
save them until the contents have been checked for completeness and the
quaternary pump has been mechanically and electrically checked. If the
shipping container or cushioning material is damaged, notify the carrier and
save the shipping material for the carrier’s inspection.
CA UT IO N

If there are signs of damage to the quaternary pump, please do not attempt to
install the quaternary pump.

Delivery Checklist
Ensure all parts and materials have been delivered with the quaternary pump.
The delivery checklist is shown in Table 2. To aid in parts identification,
please see Chapter 5 “Parts and Materials”. Please report missing or damaged
parts to your local Agilent Technologies sales and service office.

Table 2

Quaternary Pump Checklist
Description

Quantity

Quaternary pump

Solvent cabinet

1 (5062-8581)

Solvent bottles

4 (3 transparent 9301-1420, 1 amber 9301-1450)

Bottle head assembly

4 (G1311-60003)

Waste tube, purge valve

1 (5042-2461, reorder number, 5m)

Vacuum degasser

Solvent tubes for the
degasser

4 (G1322-67300)

Power cables

Installing the Pump
Unpacking the Quaternary Pump

Table 2

Quaternary Pump Checklist, continued
Description

Quantity

CAN cable

Remote cable

As ordered

Signal cable

As ordered

Reference Manual

2 (1 for the pump, 1 for the degasser)

Accessory kit (see Table 3) 1
Accessory Kit Contents — Quaternary Pump

Table 3

Accessory Kit Contents G1311-68705
Description

Part Number

Quantity

Capillary, pump to injection device

G1312-67305

Seal insert tool

01018-23702

Wrench; 1/4 – 5/16 inch

8710-0510

Wrench; 14 mm

8710-1924

ESD wrist strap*

9300-1408

Hex key 4mm

8710-2392

Waste tube (reorder number, 5m)

5062-2463

1.2 m

Velocity regulator (reorder number)

5062-2486

PTFE Frit

01018-22707

ESD: Electrostatic Discharge

Installing the Pump
Unpacking the Quaternary Pump

Accessory Kit Contents—Vacuum Degasser

Table 4

Accessory Kit Contents G1322-68705
Description

Part Number

Quantity

Syringe

5062-8534

Syringe adapter

9301-1337

Waste tube (reorder number, 5m)

5062-2463

1.2 m

Connecting tubes labeled A to D

G1322-67300

Installing the Pump
Optimizing the Stack Configuration

Optimizing the Stack Configuration
If your quaternary pump is part of a complete 1100 Series system, you can
ensure optimum performance by limiting the configuration of the system
stack to the following configuration. This configuration optimizes the system
flow path, ensuring minimum delay volume.
Figure 1

Recommended Stack Configuration (Front View)

Flow connections in the stack:
Example setup with 0.17mm ID green capillaries
Solvent bottles - degasser:
G1311-60003 (bottle-head assembly, PTFE-tubings)

Solvent
cabinet

Degasser - pump:
G1322-67300 (PTFE-tubings)

Vacuum
degasser

Pump - autosampler:
G1312-67305 (SST, green)
Pump purge valve - waste:
5062-2461 (PTFE tubing wide bore, reorder pack)

Quaternary pump

Control Module
Autosampler

Autosampler - column compartment:
G1313-87305 (SST, green)

Column compartment - column:
G1316-87300 (SST, green)
Column - detector:
DAD G1315-87311 (SST, coated)
VWD 5062-8522 (PEEK)
Detector - waste:
DAD 0890-1713 (PTFE, wide bore)
VWD 5062-8535 (PEEK)
5062-2463 (corrugated waste tubing, reorder pack)

Column compartment

Detector

NOTE

For a detailed view of the flow connections refer to the section “Flow
Connections” in chapter 1 of the reference manuals of the individual modules.
20

Installing the Pump
Optimizing the Stack Configuration

Figure 2

Recommended Stack Configuration (Rear View)

Remote cable
5061-3378
Pressure output to
recorder, for
PN see page 181
CAN Bus cable to
handheld controller
G1323-81600

CAN Bus cable for inter
module communication
5181-1516 (0.5m)
5161-1519 (1.0m)

AC power
Analog signal to
recorder,for
PN see page 181

NOTE

GPIB or
LAN to ChemStation
for PN see page 181

If a single stack configuration becomes too high, e.g. if an additional module
like a G1327A ALS Thermostat is added or if your bench is to high, a two stack
configuration may be a better setup. Separate the stack between pump and
autosampler and place the stack containing the pump on the right side of the
stack containing the autosampler.

Installing the Pump
Installing the Quaternary Pump

Installing the Quaternary Pump
Preparations

Locate bench space.
Provide power connections.
Unpack the pump.

Parts required

Pump
Power cord, for other cables see text below and “Cable Overview” on page 181
ChemStation and/or Control Module G1323A/B
1 Place the quaternary pump on the bench in a horizontal position.
2 Ensure the power switch on the front of the quaternary pump is OFF (switch
stands out).

Figure 3

Front of Quaternary Pump

Status Lamp

Power Switch

Serial number

3 At the rear of the quaternary pump move the security lever to its maximum
right position.
4 Connect the power cable to the power connector at the rear of the quaternary
pump. The security lever will prevent that the cover is opened while the power
cord is connected to the quaternary pump.
5 Connect the required interface cables to the quaternary pump.

Installing the Pump
Installing the Quaternary Pump

NOTE

In an Agilent 1100 Series system, the individual modules are connected
through CAN cables. The Agilent 1100 Series vacuum degasser is an exception
. The vacuum degasser can be connected via the APG remote connector to the
other modules of the stack. The AUX output allows the user to monitor the
vacuum level in the degasser chamber. An Agilent 1100 Series control module
can be connected to the CAN bus at any of the modules in the system except
for the degasser. The Agilent ChemStation can be connected to the system
through one GPIB or LAN (requires the installation of a LAN- board) cable at
any of the modules (except for the degasser), preferably at the detector
(MUST for the DAD). For more information about connecting the control
module or Agilent ChemStation refer to the respective user manual. For
connecting the Agilent 1100 Series equipment to non-Agilent 1100 Series
equipment, see Chapter 6 “Introduction to the Quaternary Pump”

Figure 4

Rear of Quaternary Pump
Security lever

Slot for interface board

Analog pressure, 2mV/bar
APG Remote
RS-232C

CAN

GPIB

Power

Configuration switch

6 Connect all capillaries, solvent tubes and waste tubing (see “Flow
Connections of the Quaternary Pump” on page 25).
7 Press in the power switch to turn on the quaternary pump.

Installing the Pump
Installing the Quaternary Pump

NOTE

The power switch stays pressed in and a green indicator lamp in the power
switch is on when the quaternary pump is turned on. When the line power
switch stands out and the green light is off, the quaternary pump is turned off.
8 Purge the quarternary pump (see “Priming and Purging the System” on page
28).

WAR NI N G

To disconnect the quaternary pump from line, unplug the power cord.
The power supply still uses some power, even if the power switch on
the front panel is turned off.

NOTE

The pump was shipped with default configuration settings. To change these
settings, see “Setting the 8-bit Configuration Switch” on page 223.

Installing the Pump
Flow Connections of the Quaternary Pump

Flow Connections of the Quaternary Pump
Preparations

Pump is installed in the LC system.

Parts required

Other modules
Parts from accessory kit, see “Accessory Kit Contents — Quaternary Pump” on page 18
Two wrenches 1/4–5/16 inch for capillary connections

WAR NI N G

Figure 5

Removing the Front Cover

2 Place the vacuum degasser and the solvent cabinet on top of the quaternary
pump.
3 Put the bottle-head assemblies into solvent reservoirs containing your mobile
phase and place the bottle in the solvent cabinet.
4 Connect the inlet tubes from the bottle-head assemblies to the inlet
connectors A to D (typically the left connection of the channel) of the vacuum
degasser. Fix the tubes in the tube clips of the vacuum degasser.
25

Installing the Pump
Flow Connections of the Quaternary Pump

5 Connect the solvent tubes to the outlet connectors (typically right connection
of the channel) of the vacuum degasser.
6 Connect the syringe adapter from the degasser accessory kit to the solvent
tube of channel A.
7 Using a piece of sanding paper connect the waste tubing to the purge valve
and place it into your waste system.
8 If the quaternary pump is not part of a Agilent1100 System stack or placed on
the bottom of a stack, connect the corrugated waste tube to the waste outlet
of the pump leak handling system.
9 Connect the pump outlet capillary (quaternary pump to injection device) to
the outlet of the purge valve.
10 Prime your system before first use (see “Priming and Purging the System” on
page 28).

Installing the Pump
Flow Connections of the Quaternary Pump

Figure 6

Flow Connections of the Quaternary Pump

Bottle-head assembly (G1311-60003)

Solvent cabinet

Vacuum degasser
Inlet
Outlet
Tube clip (1400-1578)
Tubings (G1322-67300)
Purge valve

Waste tubing (5062-2461)
Outlet capillary to autosampler (G1312-67305)
MCGV
Fitting for corrugated waste tubing (5062-2463, reorder pack, 5m)

Installing the Pump
Priming and Purging the System

Priming and Purging the System
The system can be primed either by drawing solvent through the degasser
with a syringe or by pumping with the pump.
Priming the system with a syringe is recommended, when:
• vacuum degasser or connected tubings are used for the first time or
vacuum tubes are empty or
• changing to solvents that are immiscible with the solvent currently in the
vacuum tubes.
Priming the system by using the pump at high flow rate
(3–5 ml/min) is recommended, when:
• pumping system was turned off for a length of time (for example,
overnight) and if volatile solvent mixtures are used, or
• solvents have been changed.
WAR NI N G

When opening capillary or tube fittings solvents may leak out. Please
observe appropriate safety procedures (for example, goggles, safety
gloves and protective clothing) as described in the material handling
and safety data sheet supplied by the solvent vendor, especially when
toxic or hazardous solvents are used.
Priming with a Syringe
Before using a new degasser or new tubings for the first time:
1 Prime all tubings with at least 30 ml of iso-propanol no matter whether the
channels will be used with organic mobile phase or with water.
If you are changing to a solvent that is immiscible with the solvent currently
in the tubing continue as follows:
2 Replace the current solvent with adequate organic solvent (see Table 5 on
page 30), if current solvent is organic or with water, if current solvent is an
inorganic buffer or contains salt.
3 Disconnect solvent outlet tube of the channel that is supposed to be primed
from your pump.
4 Connect syringe adapter to solvent outlet tube.
28

Installing the Pump
Priming and Purging the System

5 Push syringe adapter onto syringe.
6 Pull syringe plunger to draw at least 30 ml of solvent through degasser and
tubing.
7 Replace the priming solvent with the new solvent of your choice.
8 Pull syringe plunger to draw at least 30 ml of solvent through degasser and
tubing.
9 Disconnect syringe adapter from solvent tube.
10 Connect the solvent tube to the appropriate channel of the MCGV.
11 Repeat step 3 to step 10 for the other solvent channels.
NOTE

When priming the vacuum degasser with a syringe the solvent is drawn
through the degasser tubes very quickly. The solvent at the degasser outlet will
therefore not be fully degassed. Pump for approximately 10 minutes with your
selected flow rate before starting any application. This will allow the vacuum
degasser to properly degas the solvent in the degasser tubes.

NOTE

The pump should never be used for priming empty tubings (never let the pump
run dry). Use the syringe to draw enough solvent for completely filling the
tubings to the pump inlet before continueing to prime with the pump.
Priming with the Pump
When the pumping system has been turned off for a certain time (for
example, overnight) oxygen will rediffuse into the solvent channels between
the vacuum degasser and the pump. Solvents containing volatile ingredients
will slightly lose these, if left in the degasser without flow for a prolonged
period of time. Therefore priming of the vacuum degasser and the pumping
system is required before starting an application.
1 Open the purge valve of your pump (by turning it counterclockwise) and set
flow rate to 3-5 ml/min.
2 Flush the vacuum degasser and all tubes with at least 30 ml of solvent.
3 Set flow to required value of your application and close the purge valve.
4 Pump for approximately 10 minutes before starting your application.
5 Repeat step 1 to step 4 for other solvent channels, where needed.

Installing the Pump
Priming and Purging the System

Table 5

Choice of Priming Solvents for Different Purposes
Activity

Solvent

Comments

After an installation

Isopropanol

Best solvent to flush air out of
the system

When switching between
reverse phase and normal
phase (both times)

Isopropanol

Best solvent to flush air out of
the system

After an installation

Ethanol or Methanol

Alternative to Isopropanol
(second choice) if no
Isopropanol is available

To clean the system when
using buffers

Bidistilled water

Best solvent to re-dissolve
buffer cristals

After a solvent change

Bidistilled water

Best solvent to re-dissolve
buffer cristals

After the installation of
normal phase seals (P/N
0905-1420)

Hexane + 5% Isopropanol

Good wetting properties

Optimizing Performance
How to optimize the quaternary pump to achieve
best chromatographic results

Optimizing Performance
Hints for Successful Use of the Quaternary Pump

Hints for Successful Use of the Quaternary
Pump
• Always place the solvent cabinet with the solvent bottles on top of the
quaternary pump (or at a higher level).
• When using salt solutions and organic solvents in the Agilent 1100
Quaternary Pump it is recommended to connect the salt solution to one of
the bottom gradient valve ports and the organic solvent to one of the upper
gradient valve ports. It is best to have the organic channel directly above
the salt solution channel. Regular flushing with water of all MCGV
channels is recommended to remove all possible salt deposits in the valve
ports.
• Before operating the quaternary pump flush the vacuum degasser with at
least two volumes (30 ml), especially when turned off for a certain length
of time (for example, during the night) and volatile solvent mixtures are
used in the channels (see “Priming and Purging the System” on page 28).
• Prevent blocking of solvent inlet filters (never use the pump without
solvent inlet filter). Growth of algae should be avoided (see “Prevent
Blocking of Solvent Filters” on page 35).
• Check purge valve frit and column frit in regular time intervals. A blocked
purge valve frit can be identified by black or yellow layers on its surface or
by a pressure greater than 10 bar, when pumping distilled water at a rate
of 5 ml/min with an open purge valve.
• When using the quaternary pump at low flow rates (for example,
0.2 ml/min) check all 1/16-inch fittings for any signs of leaks.
• Whenever exchanging the pump seals the purge valve frit should be
exchanged, too.
• When using buffer solutions, flush the system with water before switching
it off. The seal wash option should be used when buffer concentrations of
0.1 Molar or higher will be used for long time periods.
• Check the pump plungers for scratches when changing the plunger seals.
Scratched plungers will lead to micro leaks and will decrease the lifetime
of the seal.
• Pressurize the system according to the wear in procedure after changing
the plunger seals (see “Exchanging the Pump Seals and Seal Wear-in
32

Optimizing Performance
Hints for Successful Use of the Quaternary Pump

Procedure” on page 112).

Optimizing Performance
Solvent Information

Solvent Information
Always filter solvents through 0.4 µm filters, small particles can permanently
block the capillaries and valves. Avoid the use of the following
steel-corrosive solvents:
• Solutions of alkali halides and their respective acids (for example, lithium
iodide, potassium chloride, and so on).
• High concentrations of inorganic acids like sulfuric acid, especially at
higher temperatures (replace, if your chromatography method allows, by
phosphoric acid or phosphate buffer which are less corrosive against
stainless steel).
• Halogenated solvents or mixtures which form radicals and/or acids, for
example:
2CHCl3 + O2 → 2COCl2 + 2HCl
This reaction, in which stainless steel probably acts as a catalyst, occurs
quickly with dried chloroform if the drying process removes the
stabilizing alcohol.
• Chromatographic grade ethers, which can contain peroxides (for example,
THF, dioxane, di-isopropylether) such ethers should be filtered through
dry aluminium oxide which adsorbs the peroxides.
• Mixtures of carbon tetrachloride with 2-propanol or THF dissolve stainless
steel.

Optimizing Performance
Prevent Blocking of Solvent Filters

Prevent Blocking of Solvent Filters
Contaminated solvents or algae growth in the solvent bottle will reduce the
lifetime of the solvent filter and will influence the performance of the pump.
This is especially true for aqueous solvents or phosphate buffers (pH 4 to 7).
The following suggestions will prolong lifetime of the solvent filter and will
maintain the performance of the pump:
• Use sterile, if possible amber, solvent bottles to slow down algae growth.
• Filter solvents through filters or membranes that remove algae.
• Exchange solvents every two days or refilter.
• If the application permits add 0.0001–0.001 M sodium azide to the solvent.
• Place a layer of argon on top of your solvent.
• Avoid exposure of the solvent bottles to direct sunlight.
Checking the Solvent Filters
The solvent filters are on the low-pressure side of the pumping system. A
blocked filter therefore does not affect the pressure readings of the pump.
The pressure readings cannot be used to identify blocked filters. If the
solvent cabinet is placed on top of the vacuum degasser the filter condition
can be checked in the following way:
Remove the tubing at the inlet port of the vacuum degasser. If the filter is in
good condition the solvent will freely drip out of the solvent tube (due to
hydrostatic pressure). If the solvent filter is partly blocked no solvent or only
very little solvent will drip out of the solvent tube.
Cleaning the Solvent Filters
• Remove the blocked solvent filter from the bottle-head assembly and place
it in a beaker with concentrated nitric acid (35%) for one hour.
• Thoroughly flush the filter with bidistilled water (remove all nitric acid,
some capillary columns can be damaged by nitric acid).
• Replace the filter.
NOTE

Never use the system without solvent filter installed.

Optimizing Performance
Operational Hints for the Vacuum Degasser

Operational Hints for the Vacuum
Degasser
Operational Hints for the Vacuum Degasser
If you are using the vacuum degasser for the first time, if the vacuum
degasser was switched off for any length of time (for example, overnight), or
if the vacuum degasser lines are empty, you should prime the vacuum
degasser before running an analysis.
The vacuum degasser can be primed either by drawing solvent through the
degasser with a syringe or by pumping with the quaternary pump.
Priming the degasser with a syringe is recommended, when:
• vacuum degasser is used for the first time, or vacuum tubes are empty, or
• changing to solvents that are immiscible with the solvent currently in the
vacuum tubes.
Priming the vacuum degasser by using the quaternary pump at high flow rate
is recommended, when:
• quaternary pump was turned off for a length of time (for example, during
night) and volatile solvent mixtures are used, or
• solvents have been changed.
For more information see the Reference Manual for the Agilent 1100 Series
vacuum degasser.

Optimizing Performance
Operational Hints for the Multi Channel Gradient Valve (MCGV)

Operational Hints for the Multi Channel
Gradient Valve (MCGV)
In a mixture of salt solutions and organic solvent the salt solution might be
well dissolved in the organic solvent without showing precipitations.
However in the mixing point of the gradient valve, at the boundary between
the two solvents, micro precipitation is possible. Gravity forces the salt
particles to fall down. Normally the A channel of the valve is used for the
aqueous/salt solution and the B channel of the pump is used for the organic
solvent. If used in this configuration the salt will fall back into the salt
solution and will be dissolved. When using the pump in a different
configuration (e.g., D - salt solution, A -organic solvent) the salt can fall into
the port of the organic solvent and may lead to performance problems.
NOTE

When using salt solutions and organic solvents in the Agilent 1100 Quaternary
Pump it is recommended to connect the salt solution to one of the bottom
ports and the organic solvent to one of the upper gradient valve ports. It is best
to have the organic channel directly above the salt solution channel.
Regular flushing with water of all MCGV channels is recommended to remove
all possible salt deposits in the valve ports.

Optimizing Performance
When to use the Continuous Seal Wash Option

When to use the Continuous Seal Wash
Option
Highly-concentrated buffer solutions will reduce the lifetime of the seals and
plungers in your quaternary pump. The seal wash option allows to maintain
the seal lifetime by flushing the back side of the seal with a wash solvent.
The continuous seal wash option is strongly recommended when buffer
concentrations of 0.1 Molar or higher will be used for long time periods in the
quaternary pump.
The continuous seal wash option can be ordered by quoting part number
01018-68722 (kit contains parts for one pump head).
The seal wash option comprises a support ring, secondary seal, gasket and
seal keeper for both plunger sides. A wash bottle filled with water
/isopropanol (90/10) should be placed above the quaternary pump in the
solvent cabinet and gravity will maintain a flow through the pump head
removing all possible buffer crystals from the back of the pump seal.
NOTE

Running dry is the worst case for a seal and drastically reduces its
lifetime.
The seal will build up sticky layers on the surface of the plunger. These sticky
layers will also reduce the lifetime of the primary seal. Therefore the tubes of
the wash option should always be filled with solvent to prolong the lifetime of
the wash seal. Always use a mixture of bidistilled water (90%) and isopropanol
(10%) as wash solvent. This mixture prevents bacteria growth in the wash
bottle and reduces the surface tension of the water. The flow rate should be
regulated to approximately 20 drops/minute. This can be done with the
velocity regulator supplied with the accessory kit.
For information on the installation of the continuous seal wash option refer
to “Installing the Continuous Seal Wash Option” on page 116.

Optimizing Performance
When to Use Alternative Seals

When to Use Alternative Seals
The standard seal for the quaternary pump can be used for most applications.
However applications that use normal phase solvents (for example, hexane)
are not suited for the standard seal and require a different seal when used for
a longer time in the quaternary pump.
For applications that use normal phase solvents (for example, hexane) we
recommend the use of the polyethylene seals, part number 0905-1420 (pack
of 2). These seals have less abrasion compared to the standard seals.
NOTE

Polyethylene seals have a limited pressure range 0–200 bar. When used above
200 bar their lifetime will be significantly reduced. DO NOT apply the seal
wear-in procedure performed with new standard seals at 400 bar.

Optimizing Performance
Optimize the Compressibility Compensation Setting

Optimize the Compressibility
Compensation Setting
The compressibility compensation default setting is 100 × 10-6 /bar for the
quaternary pump. This setting represents an average value. Under normal
conditions the default setting reduces the pressure pulsation to values
(below 1% of system pressure) that will be sufficient for most applications
and for all gradient analyses. For applications using sensitive detectors, the
compressibility settings can be optimized by using the values for the various
solvents described in Table 6. If the solvent in use is not listed in the
compressibility tables, when using isocratic mixtures of solvents and if the
default settings are not sufficient for your application the following
procedure can be used to optimize the compressibility settings.
NOTE

When using mixtures of solvents it is not possible to calculate the
compressibility of the mixture by interpolating the compressibility values of
the pure solvents used in that mixture or by applying any other calculation. In
these cases the following empirical procedure has to be applied to optimize
your compressibility setting.
1 Start the quaternary pump with the required flow rate.
2 Before starting the optimization procedure, the flow must be stable. Use
degassed solvent only. Check the tightness of the system with the pressure
test (see “Pressure Test” on page 82).
3 Your pump must be connected to a Chemstation or a handheld controller, the
pressure and %-ripple can be monitored with one of these instruments,
otherwhise connect a signal cable between the pressure output of the
quaternary pump and a recording device (for example, 339X integrator) and
set parameters.
Zero 50%
Att 2^3
Chart Speed 10 cm/min
4 Start the recording device with the plot mode.

Optimizing Performance
Optimize the Compressibility Compensation Setting
5 Starting with a compressibility setting of 10 × 10-6 /bar increase the value in
steps of 10. Re-zero the integrator as required. The compressibility
compensation setting that generates the smallest pressure ripple is the
optimum value for your solvent composition.

Table 6

Solvent Compressibility
Solvent (pure)

Compressibility (10-6/bar)

Acetone

126

Acetonitrile

115

Benzene

Carbon tetrachloride

110

Chloroform

100

Cyclohexane

118

Ethanol

114

Ethyl acetate

104

Heptane

120

Hexane

150

Isobutanol

100

Isopropanol

100

Methanol

120

1-Propanol

100

Toluene

Water

Optimizing Performance
Optimize the Compressibility Compensation Setting

Troubleshooting and
Test Functions
The quaternary pump’s built-in troubleshooting and
test functions

Troubleshooting and Test
Functions

This chapter describes the instrument’s built in troubleshooting and test
functions.

Status Indicators
The quaternary pump is provided with two status indicators which indicate
the operational state (prerun, run, and error states) of the quaternary pump.
The status indicators provide a quick visual check of the operation of the
quaternary pump (see “Status Indicators” on page 45).

Error Messages
In the event of an electronic, mechanical or hydraulic failure, the quaternary
pump generates an error message in the user interface. The following pages
describe the meaning of the error messages. For each message, a short
description of the failure, a list of probable causes of the problem, and a list
of suggested actions to fix the problem are provided (see “Error Messages”
on page 47).

Pressure Test
The pressure test is a quick test designed to determine the pressure tightness
of the system. After exchanging flow path components (e.g. pump seals or
injection seal), use this test to verify the system is pressure tight up to 400 bar
(see “Pressure Test” on page 82).

Leak Test
The leak test is a diagnostic test designed to determine the pressure tightness
of the quaternary pump. When a problem with the quaternary pump is
suspected, use this test to help troubleshoot the quaternary pump and its
pumping performance. The following sections describe these functions in
detail (see “Leak Test” on page 88).

Troubleshooting and Test Functions

Status Indicators

Two status indicators are located on the front of the quaternary pump. The
lower left one indicates the power supply status, the upper right one
indicates the quaternary pump status.
Figure 7

Location of Status Indicators

Status indicator

Power supply indicator

Power Supply Indicator
The power supply indicator is integrated into the main power switch. When
the indicator is illuminated (green) the power is ON.

When the indicator is off, the module is turned OFF. Otherwhise check power
connections, availability of power or check functioning of the power supply.

Pump Status Indicator
The Pump status indicator indicates one of four possible instrument
conditions:
• When the status indicator is OFF (and power switch light is on), the
quaternary pump is in a prerun condition, and is ready to begin an analysis.
• A green status indicator, indicates the quaternary pump is performing an
analysis (run mode).
• A yellow indicator indicates a not-ready condition. The quaternary pump
is in a not-ready state when it is waiting for a specific condition to be
reached or completed (for example, immediately after changing a
setpoint), or while a self-test procedure is running.
• An error condition is indicated when the status indicator is red. An error
condition indicates the quaternary pump has detected an internal problem
which affects correct operation of the quaternary pump. Usually, an error
condition requires attention (for example, leak, defective internal
components). An error condition always interrupts the analysis.
• A flashing yellow status indicator indicates that the module is in its
resident mode. Call your local service provider for assistance upon
observing this error condition.
• A flashing red status indicator indicates a severe error during the startup
procedure of the module. Call your local service provider for assistance
upon observing this error condition.

Troubleshooting and Test Functions
Error Messages

Error Messages

Error messages are displayed in the user interface when an electronic,
mechanical, or hydraulic (flow path) failure occurs which requires attention
before the analysis can be continued (for example, repair, frit exchange or
exchange of consumables required). In the event of such a failure, the red
status indicator at the front of the quaternary pump is switched on, and an
entry is written into the instrument logbook.

Timeout
The timeout threshold was exceeded.
Probable Causes

• The analysis was completed successfully, and the timeout function
switched off the quaternary pump as requested.
• A not-ready condition was present during a sequence or multiple-injection
run for a period longer than the timeout threshold.

Suggested Actions

❏ Check the logbook for the occurrence and source of a not-ready condition.
Restart the analysis where required.

Troubleshooting and Test Functions
Shut-Down

Shut-Down
An external instrument has generated a shut-down signal on the remote line.
The quaternary pump continually monitors the remote input connectors for
status signals. A LOW signal input on pin 4 of the remote connector generates
the error message.
Probable Causes

• Leak detected in another module with a CAN connection to the system .
• Leak detected in an external instrument with a remote connection to the
system.
• Shut-down in an external instrument with a remote connection to the
system.
• The degasser failed to generate sufficient vacuum for solvent degassing.

Suggested Actions

❏ Fix the leak in the external instrument before restarting the quaternary
pump.
❏ Check external instruments for a shut-down condition.
❏ Check the vacuum degasser for an error condition. Refer to the Reference
Manual for the Agilent 1100 Series vacuum degasser.

Troubleshooting and Test Functions
Remote Timeout

Remote Timeout
A not-ready condition is still present on the remote input .
When an analysis is started, the system expects all not-ready conditions (e.g.
a not-ready condition during detector balance) to switch to run conditions
within one minute of starting the analysis. If a not-ready condition is still
present on the remote line after one minute the error message is generated.
Probable Causes

• Not-ready condition in one of the instruments connected to the remote
line.
• Defective remote cable.
• Defective components in the instrument showing the not-ready condition.

Suggested Actions

❏ Ensure the instrument showing the not-ready condition is installed
correctly, and is set up correctly for analysis.
❏ Exchange the remote cable.
❏ Check the instrument for defects (refer to the instrument’s reference
documentation).

Troubleshooting and Test Functions
Synchronization Lost

Synchronization Lost
During an analysis, the internal synchronization or communication between
one or more of the modules in the system has failed.
The system processors continually monitor the system configuration. If one
or more of the modules is no longer recognized as being connected to the
system, the error message is generated.
Probable Causes

• CAN cable disconnected.
• Defective CAN cable.
• Defective main board in another module.

Suggested Actions

❏ Ensure all the CAN cables are connected correctly.
❏ Switch off the system. Restart the system, and determine which module or
modules are not recognized by the system.
❏ Ensure all CAN cables are installed correctly.

Troubleshooting and Test Functions
Leak

Leak
A leak was detected in the quaternary pump.
The signals from the two temperature sensors (leak sensor and
board-mounted temperature-compensation sensor) are used by the leak
algorithm to determine whether a leak is present. When a leak occurs, the
leak sensor is cooled by the solvent. This changes the resistance of the leak
sensor which is sensed by the leak-sensor circuit on the LPM board
Probable Causes

• Loose fittings.
• Broken capillary.
• Loose or leaking purge valve, active inlet valve, or outlet ball valve.
• Defective pump seals.

Suggested Actions

❏ Ensure all fittings are tight.
❏ Exchange defective capillaries.
❏ Ensure pump components are seated correctly. If there are still signs of a
leak, exchange the appropriate seal (purge valve, active inlet valve, outlet
ball valve).
❏ Exchange the pump seals.

Troubleshooting and Test Functions
Leak Sensor Open

Leak Sensor Open
The leak sensor in the quaternary pump has failed (open circuit).
The current through the leak sensor is dependent on temperature. A leak is
detected when solvent cools the leak sensor, causing the leak-sensor current
to change within defined limits. If the current falls outside the lower limit, the
error message is generated.
Probable Causes

• Leak sensor not connected to the LPM board.
• Defective leak sensor.
• Leak sensor incorrectly routed, being pinched by a metal component.

Suggested Actions

❏ Ensure the leak sensor is connected correctly.
❏ Exchange the leak sensor.

Troubleshooting and Test Functions
Leak Sensor Short

Leak Sensor Short
The leak sensor in the quaternary pump has failed (short circuit).
The current through the leak sensor is dependent on temperature. A leak is
detected when solvent cools the leak sensor, causing the leak-sensor current
to change within defined limits. If the current increases above the upper
limit, the error message is generated.
Probable Causes

• Defective leak sensor.
• Leak sensor incorrectly routed, being pinched by a metal component.

Suggested Actions

❏ Exchange the leak sensor.

Troubleshooting and Test Functions
Compensation Sensor Open

Compensation Sensor Open
The ambient-compensation sensor (NTC) on the LPM board in the quaternary
pump has failed (open circuit).
The resistance across the temperature compensation sensor (NTC) on the
LPM board is dependent on ambient temperature. The change in resistance is
used by the leak circuit to compensate for ambient temperature changes. If
the resistance across the sensor increases above the upper limit, the error
message is generated.
Probable Causes

• Defective LPM board.

Suggested Actions

❏ Exchange the LPM board.

Troubleshooting and Test Functions
Compensation Sensor Short

Compensation Sensor Short
The ambient-compensation sensor (NTC) on the LPM board in the quaternary
pump has failed (short circuit).
The resistance across the temperature compensation sensor (NTC) on the
LPM board is dependent on ambient temperature. The change in resistance is
used by the leak circuit to compensate for ambient temperature changes. If
the resistance across the sensor falls below the lower limit, the error message
is generated.
Probable Causes

• Defective LPM board.

Suggested Actions

❏ Exchange the LPM board.

Troubleshooting and Test Functions
Fan Failed

Fan Failed
The cooling fan in the quaternary pump has failed.
The hall sensor on the fan shaft is used by the LPM board to monitor the fan
speed. If the fan speed falls below 2 revolutions/second for longer than
5 seconds, the error message is generated.
Probable Causes

• Fan cable disconnected.
• Defective fan.
• Defective LPM board.
• Improperly positioned cables or wires obstructing fan blades.

Suggested Actions

❏ Ensure the fan is connected correctly.
❏ Exchange fan.
❏ Exchange the LPM board.
❏ Ensure the fan is not mechanically blocked.

Troubleshooting and Test Functions
Open Cover

Open Cover
The top foam has been removed.
The sensor on the LPM board detects when the top foam is in place. If the
foam is removed, the fan is switched off, and the error message is generated.
Probable Causes

• The top foam was removed during operation.
• Foam not activating the sensor.
• Sensor defective.
• Rear of the module is exposed to strong direct sunlight.

Suggested Actions

❏ Replace the top foam.
❏ Exchange the LPM board.
❏ Ensure that the rear of module is not directly exposed to strong sunlight.

Troubleshooting and Test Functions
Restart Without Cover

Restart Without Cover
The quaternary pump was restarted with the top cover and foam open.
The sensor on the LPM board detects when the top foam is in place. If the
quaternary pump is restarted with the foam removed, the quaternary pump
switches off within 30 s, and the error message is generated.
Probable Causes

• The quaternary pump started with the top cover and foam removed.
• Rear of the module is exposed to strong direct sunlight.

Suggested Actions

❏ Replace the top cover and foam.
❏ Ensure that the rear of module is not directly exposed to strong sunlight.

Troubleshooting and Test Functions
Zero Solvent Counter

Zero Solvent Counter
Pump firmware version A.02.32 and higher allow to set solvent bottle fillings
at the ChemStation (revision 5.xx and higher). If the volume level in the
bottle falls below the specified value the error message appears when the
feature is configured accordingly.
Probable Causes

• Volume in bottle below specified volume.
• Incorrect setting of limit.

Suggested Actions

❏ Refill bottles and reset solvent counters.

Troubleshooting and Test Functions
Pressure Above Upper Limit

Pressure Above Upper Limit
The system pressure has exceeded the upper pressure limit.
Probable Causes

• Upper pressure limit set too low.
• Blockage in the flowpath (after the damper).
• Defective damper.
• Defective LPM board.

Suggested Actions

❏ Ensure the upper pressure limit is set to a value suitable for the analysis.
❏ Check for blockage in the flowpath. The following components are
particularly subject to blockage:
purge-valve frit.
needle (autosampler),
seat capillary (autosampler),
sample loop (autosampler), and
column frits.
capillaries with low internal diameters (e.g. 0.12mm id).
❏ Exchange the damper.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Pressure Below Lower Limit

Pressure Below Lower Limit
The system pressure has fallen below the lower pressure limit.
Probable Causes

• Lower pressure limit set too high.
• Air bubbles in the mobile phase.
• Leak.
• Defective damper.
• Defective LPM board.

Suggested Actions

❏ Ensure the lower pressure limit is set to a value suitable for the analysis.
❏ Ensure solvents are degassed. Purge the quaternary pump.
❏ Ensure solvent inlet filters are not blocked.
❏ Inspect the pump head, capillaries and fittings for signs of a leak.
❏ Purge the quaternary pump. Run a pressure test to determine whether the
seals or other pump components are defective.
❏ Exchange the damper.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Pressure Signal Missing

Pressure Signal Missing
The pressure signal from the damper is missing.
The pressure signal from the damper must be within a specific voltage range.
If the pressure signal is missing, the processor detects a voltage of
approximately -120mV across the damper connector.
Probable Causes

• Damper disconnected.
• Defective damper.

Suggested Actions

❏ Ensure the damper is connected correctly to the LPM board.
❏ Exchange the damper.

Troubleshooting and Test Functions
Missing Pressure Reading

Missing Pressure Reading
The pressure readings read by the pump ADC (analog-digital converter) are
missing.
The ADC reads the pressure readings from the damper every 1ms. If the
readings are missing for longer than 10 seconds, the error message is
generated.
Probable Causes

• Damper not connected.
• Defective damper.
• Defective LPM board.

Suggested Actions

❏ Ensure the damper is connected, clean and seated correctly.
❏ Exchange the damper.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Pump Configuration

Pump Configuration
At switch-on, the quaternary pump has recognized a new pump
configuration.
The quaternary pump is assigned its configuration at the factory. If the
gradient valve is disconnected, and the quaternary pump is rebooted, the
error message is generated. However, the pump will function as an isocratic
pump in this configuration.The error message reappears after each
switch-on.
Probable Causes

• Gradient valve disconnected.

Suggested Actions

❏ Reconnect the gradient valve.

Troubleshooting and Test Functions
Valve Fuse

Valve Fuse
Valve Fuse 0: Channels A and B
Valve Fuse 1: Channels C and D
The gradient valve in the quaternary pump has drawn excessive current
causing the electronic fuse to open.
Probable Causes

• Defective gradient valve.
• Defective connection cable (front panel to LPM board).
• Defective LPM board.

Suggested Actions

❏ Restart the quaternary pump. If the error message appears again, exchange
the gradient valve.
❏ Exchange the connection cable.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Inlet-Valve Fuse

Inlet-Valve Fuse
The active-inlet valve in the quaternary pump has drawn excessive current
causing the inlet-valve electronic fuse to open.
Probable Causes

• Defective active inlet valve.
• Defective connection cable (front panel to LPM board).
• Defective LPM board.

Suggested Actions

❏ Restart the quaternary pump. If the error message appears again, exchange
the active inlet valve.
❏ Exchange the connection cable.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Valve Failed

Valve Failed
Valve 0 Failed: valve A
Valve 1 Failed: valve B
Valve 2 Failed: valve C
Valve 3 Failed: valve D
One of the valves of the multi-channel gradient valve has failed to switch
correctly.
The processor monitors the valve voltage before and after each switching
cycle. If the voltages are outside expected limits, the error message is
generated.
Probable Causes

• Gradient valve disconnected.
• Connection cable (inside instrument) not connected.
• Connection cable (inside instrument) defective.
• Gradient valve defective.

Suggested Actions

❏ Ensure the gradient valve is connected correctly.
❏ Ensure the connection cable is connected correctly.
❏ Exchange the connection cable.
❏ Exchange the gradient valve.

Troubleshooting and Test Functions
Motor-Drive Power

Motor-Drive Power
The current drawn by the pump motor exceeded the maximum limit.
Blockages in the flow path are usually detected by the pressure sensor in the
damper, which result in the pump switching off when the upper pressure
limit is exceeded. If a blockage occurs before the damper, the pressure
increase cannot be detected by the pressure sensor and the quaternary pump
will continue to pump. As pressure increases, the pump drive draws more
current. When the current reaches the maximum limit, the quaternary pump
is switched off, and the error message is generated.
Probable Causes

• Flow path blockage in front of the damper.
• Blocked active inlet valve.
• Blocked outlet ball valve.
• High friction (partial mechanical blockage) in the pump drive assembly.
• Defective pump drive assembly.
• Defective LPM board.

Suggested Actions

❏ Ensure the capillaries and frits between the pump head and damper inlet
are free from blockage.
❏ Exchange the active inlet valve.
❏ Exchange the outlet ball valve.
❏ Remove the pump-head assembly. Ensure there is no mechanical blockage
of the pump-head assembly or pump drive assembly.
❏ Exchange the pump drive assembly.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Encoder Missing

Encoder Missing
The optical encoder on the pump motor in the quaternary pump is missing or
defective.
The processor checks the presence of the pump encoder connector every
2 seconds. If the connector is not detected by the processor, the error
message is generated.
Probable Causes

• Defective or disconnected pump encoder connector.
• Defective pump drive assembly.

Suggested Actions

❏ Ensure the connector is clean, and seated correctly.
❏ Exchange the pump drive assembly.

Troubleshooting and Test Functions
Inlet-Valve Missing

Inlet-Valve Missing
The active-inlet valve in the quaternary pump is missing or defective.
The processor checks the presence of the active-inlet valve connector every
2 seconds. If the connector is not detected by the processor, the error
message is generated.
Probable Causes

• Disconnected or defective cable.
• Disconnected or defective connection cable (front panel to LPM board).
• Defective active inlet valve.

Suggested Actions

❏ Ensure the pins of the active inlet valve connector are not damaged.
Ensure the connector is seated securely.
❏ Ensure the connection cable is seated correctly. Exchange the cable if
defective.
❏ Exchange the active inlet valve.

Troubleshooting and Test Functions
Temperature Out of Range

Temperature Out of Range
The temperature sensor readings in the motor-drive circuit are out of range.
The values supplied to the ADC by the hybrid sensors must be between 0.5 V
and 4.3 V. If the values are outside this range, the error message is generated.
Probable Causes

• Defective LPM board.

Suggested Actions

❏ Exchange the LPM board.

Troubleshooting and Test Functions
Temperature Limit Exceeded

Temperature Limit Exceeded
The temperature of one of the motor-drive circuits is too high.
The processor continually monitors the temperature of the drive circuits on
the LPM board. If excessive current is being drawn for long periods, the
temperature of the circuits increases. If the temperature exceeds the upper
limit of 95 ºC, the error message is generated.
Probable Causes

• High friction (partial mechanical blockage) in the pump drive assembly.
• Partial blockage of the flowpath in front of the damper.
• Defective pump drive assembly.
• Defective LPM board.

Suggested Actions

❏ Ensure the capillaries and frits between the pump head and damper inlet
are free from blockage.
❏ Ensure the outlet valve is not blocked.
❏ Remove the pump head assembly. Ensure there is no mechanical blockage
of the pump head assembly or pump drive assembly.
❏ Exchange the pump drive assembly.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Servo Restart Failed

Servo Restart Failed
The pump motor in the quaternary pump was unable to move into the correct
position for restarting.
When the quaternary pump is switched on, the first step is to switch on the C
phase of the variable reluctance motor. The rotor should move to one of the
C positions. The C position is required for the servo to be able to take control
of the phase sequencing with the commutator. If the rotor is unable to move,
or if the C position cannot be reached, the error message is generated.
Probable Causes

• Disconnected or defective cables.
• Blocked active inlet valve.
• Mechanical blockage of the quaternary pump.
• Defective pump drive assembly.
• Defective LPM board.

Suggested Actions

❏ Ensure the pump-assembly cables are not damaged or dirty. Make sure the
cables are connected securely to the LPM board.
❏ Exchange the active inlet valve.
❏ Remove the pump-head assembly. Ensure there is no mechanical blockage
of the pump-head assembly or pump drive assembly.
❏ Exchange the pump drive assembly.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Pump Head Missing

Pump Head Missing
The pump-head end stop in the quaternary pump was not found.
When the quaternary pump restarts, the metering drive moves forward to the
mechanical end stop. Normally, the end stop is reached within 20 seconds,
indicated by an increase in motor current. If the end point is not found within
20 seconds, the error message is generated.
Probable Causes

• Pump head not installed correctly (screws not secured, or pump head not
seated correctly).
• Broken plunger.

Suggested Actions

❏ Install the pump head correctly. Ensure nothing (e.g. capillary) is trapped
between the pump head and body.
❏ Exchange the plunger.

Troubleshooting and Test Functions
Index Limit

Index Limit
The time required by the plunger to reach the encoder index position was too
short (quaternary pump).
During initialization, the first plunger is moved to the mechanical stop. After
reaching the mechanical stop, the plunger reverses direction until the
encoder index position is reached. If the index position is reached too fast,
the error message is generated.
Probable Causes

• Irregular or sticking drive movement.
• Defective pump drive assembly.

Suggested Actions

❏ Remove the pump head, and examine the seals, plungers, and internal
components for signs of wear, contamination or damage. Exchange
components as required.
❏ Exchange the pump drive assembly.

Troubleshooting and Test Functions
Index Adjustment

Index Adjustment
The encoder index position in the quaternary pump is out of adjustment.
During initialization, the first plunger is moved to the mechanical stop. After
reaching the mechanical stop, the plunger reverses direction until the
encoder index position is reached. If the time to reach the index position is
too long, the error message is generated.
Probable Causes

• Irregular or sticking drive movement.
• Defective pump drive assembly.

Suggested Actions

❏ Remove the pump head, and examine the seals, plungers, and internal
components for signs of wear, contamination or damage. Exchange
components as required.
❏ Exchange the pump drive assembly.

Troubleshooting and Test Functions
Index Missing

Index Missing
The encoder index position in the quaternary pump was not found during
initialization.
During initialization, the first plunger is moved to the mechanical stop. After
reaching the mechanical stop, the plunger reverses direction until the
encoder index position is reached. If the index position is not recognized
within a defined time, the error message is generated.
Probable Causes

• Disconnected or defective encoder cable.
• Defective pump drive assembly.

Suggested Actions

❏ Ensure the encoder cable are not damaged or dirty. Make sure the cables
are connected securely to the LPM board.
❏ Exchange the pump drive assembly.

Troubleshooting and Test Functions
Stroke Length

Stroke Length
The distance between the lower plunger position and the upper mechanical
stop is out of limits (quaternary pump).
During initialization, the quaternary pump monitors the drive current. If the
plunger reaches the upper mechanical stop position before expected, the
motor current increases as the quaternary pump attempts to drive the
plunger beyond the mechanical stop. This current increase causes the error
message to be generated.
Probable Causes

• Defective pump drive assembly.

Suggested Actions

❏ Exchange the pump drive assembly.

Troubleshooting and Test Functions
Initialization Failed

Initialization Failed
The quaternary pump failed to initialize successfully within the maximum
time window.
A maximum time is assigned for the complete pump-initialization cycle. If the
time is exceeded before initialization is complete, the error message is
generated.
Probable Causes

• Blocked active inlet valve.
• Defective pump drive assembly.
• Defective LPM board.

Suggested Actions

❏ Exchange the active inlet valve.
❏ Exchange the pump drive assembly.
❏ Exchange the LPM board.

Troubleshooting and Test Functions
Wait Timeout

Wait Timeout
When running certain tests in the diagnostics mode or other special
applications, the pump must wait for the plungers to reach a specific
position, or must wait for a certain pressure or flow to be reached. Each
action or state must be completed within the timeout period, otherwise the
error message is generated.
Possible Reasons for a
Wait Timeout

• Pressure not reached.
• Pump channel A did not reach the delivery phase.
• Pump channel B did not reach the delivery phase.
• Pump channel A did not reach the take-in phase.
• Pump channel B did not reach the take-in phase.
• Solvent volume not delivered within the specified time.

Probable Causes

• Purge valve still open.
• Leak at fittings, purge valve, active inlet valve, outlet ball valve or plunger
seals.
• Flow changed after starting test.
• Defective pump drive assembly.

Suggested Actions

❏ Ensure that purge valve is closed.
❏ Exchange defective capillaries.
❏ Ensure pump components are seated correctly. If there are still signs of a
leak, exchange the appropriate seal (purge valve, active inlet valve, outlet
ball valve, plunger seal).
❏ Ensure correct operating condition for the special application in use.
❏ Exchange the defective pump drive assembly.

Pressure Test

Description
The pressure test is a quick, built-in test designed to demonstrate the
pressure-tightness of the system. The test should be used when problems
with small leaks are suspected, or after maintenance of flow-path
components (e.g. pump seals, injection seal) to prove pressure tightness up
to 400 bar. The test involves monitoring the pressure profile as the pump runs
through a predefined pumping sequence. The resulting pressure profile
provides information about the pressure tightness of the system.
The column compartment outlet (or the outlet of the last module before the
detector) is blocked with a blank nut, and then the test is run using isopropyl
alcohol (IPA), while monitoring the pressure profile (using an integrator on
the analog output, or in the plot screen in the ChemStation). The pressure
profile is shown in Figure 8.
Figure 8

Typical Pressure-Test Pressure Profile with IPA
Pressure
Step 2

Step 1
Time [minutes]

Step 1

The test begins with the initialization of the pump. After initialization,
plunger 1 is at the top of its stroke. Next, the pump begins pumping solvent

Troubleshooting and Test Functions
Pressure Test

with a flow rate of 510 µl/min and stroke of 100 µl. The pump continues to
pump until a system pressure of 390 bar is reached.
Step 2

When the system pressure reaches 390 bar, the pump switches off. The
pressure drop from this point onwards should be no more than 2 bar/minute.

Positioning the blank nut
To test the complete system’s pressure tightness, the blank nut should be
positioned at the column compartment outlet (or the outlet of the last
module before the detector).
If a specific component is suspected of causing a system leak, place the blank
nut immediately before the suspected component, then run the pressure test
again. If the test passes, the defective component is located after the blank
nut. Confirm the diagnosis by placing the blank nut immediately after the
suspected component. The diagnosis is confirmed if the test fails.

Troubleshooting and Test Functions
Running the Pressure Test

Running the Pressure Test
Tools required

¼-inch” wrench

Parts and materials
required

Blank nut, 01080-83202
Isopropanol, 500 ml

Running the test from the ChemStation
1 Select the pressure test from the test selection box in the Diagnosis screen.
2 Start the test and follow the instructions.
NOTE

Make absolutely sure that all parts of the flow path that are part of the
test are very thoroughly flushed with IPA before starting to pressurize
the system! Any trace of other solvents or the smallest air bubble
inside the flow path definitely will cause the test to fail!
The slope and plateau are evaluated automatically. “Evaluating the Results”
on page 86 describes the evaluation and interpretation of the pressure test
results.

Running the test from the Control Module
1 Place a bottle of LC-grade isopropyl alcohol in channel D.
2 Block column compartment outlet (or the outlet of the last module before the
detector) with a blank nut (01080-83202), See “Positioning the blank nut” on
page 83.
3 Open the purge valve. Set flow for channel D to 5 ml/min and flush the
degasser for about 10 minutes.
4 Set flow to 0 ml/min. Leave the purge valve open.
5 Connect the signal cable to the analog output at the rear of the pump module
(only if an integrator is used).
6 Press Execute to initialize the pressure test.

Troubleshooting and Test Functions
Running the Pressure Test

Once the test is started, the pump moves the plungers into the start position.
When the plungers are in position, the user interface prompts you to close
the purge valve, and continue the test.
7 Close the purge valve, select continue on the control module and press Enter
to start the test.
The control module displays a graphical representation of the pressure.
“Evaluating the Results” on page 86 describes the evaluation and
interpretation of the pressure test results.
8 When the test is finished slowly open the purge valve to release the pressure
in the system.

Troubleshooting and Test Functions
Evaluating the Results

Evaluating the Results
The sum of all leaks between the pump and the blank nut will be indicated by
a pressure drop of >2 bar/minute at the plateau. Note that small leaks may
cause the test to fail, but solvent may not be seen leaking from a module.
NOTE

Please notice the difference between an error in the test and a failure of the
test! An error means that during the operation of the test there was an
abnormal termination. If a test failed, this means that the results of the test
where not within the specified limits.

If the pressure test fails:
• Ensure all fittings between the pump and the blank nut are tight. Repeat
the pressure test.
NOTE

Often it is only a damaged blank nut itself (poorly shaped from overtightening)
that causes a failure of the test. Before investigating on any other possible
sources of failure make sure that the blank nut you are using is in good
condition and properly tightened!
• If the test fails again, insert the blank nut at the outlet of the previous
module in the stack (eg. autosampler, port 6 of the injection valve), and
repeat the pressure test. Exclude each module one by one to determine
which module is leaking.
• If the pump is determined to be the source of the leak, run the leak test.

Troubleshooting and Test Functions
Evaluating the Results

Potential Causes of Pressure Test Failure
After isolating and fixing the cause of the leak, repeat the pressure test to
confirm the system is pressure tight.
Potential Cause (Pump)

Corrective Action

Purge valve open.

Close the purge valve.

Loose or leaky fitting.

Tighten the fitting or exchange the capillary.

Damaged pump seals or plungers.

Run the leak test to confirm the leak.

Loose purge valve.

Tighten the purge valve nut (14 mm wrench).

Potential Cause (Autosampler)

Corrective Action

Loose or leaky fitting.

Tighten or exchange the fitting or capillary.

Rotor seal (injection valve).

Exchange the rotor seal.

Damaged metering seal or plunger.

Exchange the metering seal. Check the
plunger for scratches. Exchange the plunger if
required.

Needle seat.

Exchange the needle seat.

Potential Cause (Column Compartment) Corrective Action
Loose or leaky fitting.

Tighten or exchange the fitting or capillary.

Rotor seal (column switching valve).

Exchange the rotor seal.

Troubleshooting and Test Functions
Leak Test

Leak Test

Description
The leak test is a built-in troubleshooting test designed to demonstrate the
leak-tightness of the pump. The test should be used when problems with the
pump are suspected. The test involves monitoring the pressure profile as the
pump runs through a predefined pumping sequence. The resulting pressure
profile provides information about the pressure tightness and operation of
the pump components.
The pump outlet is blocked with a blank nut, and then the test is run using
isopropyl alcohol (IPA), while monitoring the pressure profile (using an
integrator on the analog output, or in the plot screen in the Control Module or
the ChemStation).
Figure 9

Typical Leak-Test Pressure Profile with IPA

Plateau 3

Pressure [bar]
Ramp 4
Plateau 2
Plateau 1

Ramp 2

Ramp 3

Ramp 1

Time [minutes]

Troubleshooting and Test Functions
Leak Test

Ramp 1:

After initialization, plunger 2 is at the top of its stroke. The test begins with
plungerplunger 1 delivering with a stroke length of 100µl and a flow of
153µl/min. The plunger sequence during the pressure ramp is 1-2-1-2. The
pressure increase during this phase should be linear. Pressure disturbances
during this phase indicate larger leaks or defective pump components.

Plateau 1:

plunger 2 continues to pump with a flow rate of 2µl/min for approximately
one minute. The pressure during the plateau should remain constant or
increase slightly. A falling pressure indicates a leak of >2µl/min.

Ramp 2:

The flow is changed to 153µl/min, and plunger 2 continues to deliver for the
rest of its stroke. Then plunger 1 continues to pump to complete the second
half of the ramp.

Plateau 2:

The flow is reduced to 2 µl/min for approximately one minute (plunger 1 still
delivering). The pressure during the plateau should remain constant or
increase slightly. A falling pressure indicates a leak of >2 µl/min.

Ramp 3:

The flow increases to 220µl/min and the stroke is changed to 100 µl. Plunger 1
completes its stroke. Next, the flow is changed to 510µl/min. The ramp
reaches 390 bar with the plunger sequence 2-1-2-1.

Ramp 4:

When the system pressure reaches 390 bar, the flow is reduced to zero, and
the pressure stabilizes just below 400 bar.

Plateau 3:

1 min after reaching the maximum pressure, the pressure drop should not
exceed 2 bar/min.

Running the Leak Test
Tools required

¼ inch” wrench.

Parts and materials
required

Restriction Capillary ,G1313-87305
Blank nut, 01080-83202
Isopropanol, 500 ml

Running the test from the ChemStation
1 Select the leak test from the test selection box in the Diagnosis screen.
2 Start the test and follow the instructions.
NOTE

Make absolutely sure that all parts of the flow path that are part of the
test are very thoroughly flushed with IPA before starting to pressurize
the system! Any trace of other solvents or the smallest air bubble
inside the flow path definitely will cause the test to fail!
The slopes and plateaus are evaluated automatically. “Evaluating the Results”
on page 92 describes the evaluation and interpretation of the leak test results.

Running the test from the Control Module
1 Place a bottle of LC-grade isopropyl alcohol in channel D.
2 Open the purge valve.
3 Set flow to 5 ml/min for channel D and flush the degasser channel for about
10minutes.
4 Turn off pump operation and close the purge valve.
5 Connect the restriction capillary (G1313-87305) to pump outlet.
The next steps are necessary to wear in new seals.
6 Set flow to 5 ml/min and flush the pump channel for about 3 minutes.
7 Set flow to 0 ml/min and replace the restriction capillary with blank nut
(01080-83202).
8 Open the purge valve.

Troubleshooting and Test Functions
Running the Leak Test

9 Connect the signal cable to the analog output at the rear of the pump module
(only if an integrator is used).
10 Press Execute to initialize the leak test.
Once the test is started, the pump moves the plungers into the start position.
When the plungers are in position, the user interface prompts you to close
the purge valve.
11 Close the purge valve, select continue on the control module and press Enter
to start the test.
The control module displays a graphical representation of the pressure in the
plateau windows. “Evaluating the Results” on page 92 describes the
evaluation and interpretation of the leak test results.
12 When the test is finished slowly open the purge valve to release the pressure
in the system.

Troubleshooting and Test Functions
Evaluating the Results

Evaluating the Results
Defective or leaky components in the pump head lead to changes in the
leak-test pressure plot. Typical failure modes are described below.
Figure 10

Leak Test Pressure Profile

Plateau 3

Pressure [bar]
Ramp 4
Plateau 2
Plateau 1

Ramp 2

Ramp 3

Ramp 1

Time [minutes]

NOTE

Troubleshooting and Test Functions
Evaluating the Results

No Pressure increase at Ramp 1
Potential Cause

Corrective Action

Pump not running.

Check the logbook for error messages.

Purge valve open.

Close the purge valve, and restart the test.

Loose or leaky fittings.

Ensure all fittings are tight, or exchange
capillary.

Wrong solvent-line connections.

Ensure the solvent lines from the degasser
are connected correctly (channel D for
quaternary pump).

Contaminated purge valve.

Open and close purge valve to flush out
contamination. Exchange the valve if still
leaky.

Large leaks (visible) at the pump seals.

Exchange the pump seals.

Large leaks (visible) at active inlet valve,
outlet valve, or purge valve.

Ensure the leaky components are installed
tightly. Exchange the component if required.

Pressure limit not reached but plateaus horizontal or
positive
Potential Cause

Corrective Action

Degasser and pump not flushed sufficiently
(air in the pump head).

Purge the degasser and pump thoroughly
with isopropanol under pressure (use the
restriction capillary).

Wrong solvent.

Install isopropanol. Purge the degasser and
pump thoroughly.

Troubleshooting and Test Functions
Evaluating the Results

All plateaus negative
Potential Cause

Corrective Action

Loose or leaky fittings.

Ensure all fittings are tight, or exchange
capillary.

Loose purge valve.

Tighten the purge valve (14mm wrench).

Contaminated purge valve.

Open and close purge valve to flush out
contamination. Exchange the valve if still
leaky.

Loose pump head screws.

Ensure the pump head screws are tight.

Leaking seals or scratched plungers.

Exchange the pump seals. Check the plungers
for scratches. Exchange if scratched.

Leaking outlet valve.

Exchange the outlet valve.

Leaky damper.

Exchange damper.

First plateau positive, second and third plateau negative
Potential Cause

Corrective Action

Air in pump or new seals not yet seated.

Flush pump thoroughly with isopropanol under
pressure (use restriction capillary).

Loose active inlet valve.

Tighten the active inlet valve (14mm wrench).
Do not overtighten!

Loose pump head screws.

Ensure the pump head screws are tight.

Loose outlet valve.

Ensure the sieve in the outlet valve is installed
correctly. Tighten the outlet valve.

Leaking seal or scratched plunger.

Exchange the pump seals. Check the plungers
for scratches. Exchange if scratched.

Defective active inlet valve.

Exchange the active inlet valve.

Troubleshooting and Test Functions
Evaluating the Results

First plateau negative, second plateau positive
Potential Cause

Corrective Action

Leaking outlet valve.

Clean the outlet valve. Ensure the sieve in the
outlet valves are installed correctly. Tighten the
outlet valve.

Loose pump head screws.

Ensure the pump head screws are tight.

Leaking seals or scratched plungers.

Exchange the pump seals. Check the plunger for
scratches. Exchange if scratched.

Ramp 3 does not reach limit
Potential Cause

Corrective Action

Pump stopped due to error.

Check the logbook for error messages.

Large leaks (visible) at the pump seals.

Exchange the pump seals.

Large leaks (visible) at active inlet valve,
outlet valve, or purge valve.

Ensure the leaky components are installed
tightly. Exchange the component if required.

Third plateau negative (pressure drop > 2 bar/min)
Potential Cause

Corrective Action

Loose or leaky fittings.

Ensure all fittings are tight, or exchange
capillary.

Loose purge valve.

Tighten the purge valve (14mm wrench).

Contaminated purge valve.

Open and close purge valve to flush out
contamination. Exchange the valve if still
leaky.

Loose pump head screws.

Ensure the pump head screws are tight.

Leaking seals or scratched plungers.

Exchange the pump seals. Check the plungers
for scratches. Exchange if scratched.

Leaking outlet valve.

Exchange the outlet valve.

Leaky damper.

Exchange damper.

Troubleshooting and Test Functions
Evaluating the Results

Repairing the Pump
Instructions on simple, routine repair procedures
as well as more extensive repairs requiring
exchange of internal parts

Repairing the Pump

Simple Repairs
The quaternary pump is designed for easy repair. The most frequent repairs
such as plunger seal change and purge valve frit change can be done from the
front of the quaternary pump with the quaternary pump in place in the system
stack. These repairs are described in “Simple Repair Procedures” on
page 102.
WAR NI N G

Exchanging Internal Parts
Some repairs may require exchange of defective internal parts. Exchange of
these parts requires removing the quaternary pump from the stack, removing
the covers, and disassembling the quaternary pump. The security lever at the
power input socket prevents that the pump cover is taken off when line
power is still connected.
WAR NI N G

To prevent personal injury, the power cable must be removed from the
quaternary pump before opening the pump cover. Do not connect the
power cable to the quaternary pump while the covers are removed.

CA UT IO N

Electronic boards and components are sensitive to electrostatic discharge
(ESD). In order to prevent damage always use an ESD protection (for
example, the ESD wrist strap from the accessory kit) when handling
electronic boards and components.

Repairing the Pump
Cleaning the Quaternary Pump

Cleaning the Quaternary Pump
The quaternary pump case should be kept clean. Cleaning should be done
with a soft cloth slightly dampened with water or a solution of water and a
mild detergent. Do not use an excessively damp cloth that liquid can drip into
the quaternary pump.
WAR NI N G

Do not let liquid drip into the quaternary pump. It could cause shock
hazard and it could damage the quaternary pump.

Repairing the Pump
Using the ESD Strap

Using the ESD Strap
Electronic boards are sensitive to electrostatic discharge (ESD). In order to
prevent damage, always use an ESD strap supplied in the standard accessory
kit (see “Accessory Kit G1311-68705” on page 179) when handling electronic
boards and components.

Using the ESD Strap
1 Unwrap the first two folds of the band and wrap the exposed adhesive side
firmly around your wrist.
2 Unroll the rest of the band and peel the liner from the copper foil at the
opposite end.
3 Attach the copper foil to a convenient and exposed electrical ground.
Figure 11

Using the ESD Strap

100

Repairing the Pump
Overview

Overview
Figure 12 shows the main assemblies of the quaternary pump. The pump
head and its parts do require normal maintenance (for example, seal
exchange) and can be accessed from the front (simple repairs). Replacing
internal parts will require to remove the quaternary pump from its stack and
to open the top cover.
Figure 12

Overview of Repair Procedures
Power supply,
see page 147
LPM board,
see page 131

Pump drive,
see page 143

Pump head,
see page 110
Outlet ball valve,
see page 106
Purge valve,
see page 108
Active inlet valve,
see page 103

Fan,
see page 141

Damping unit,
page 138
MCGV,
see page 123
Leak sensor,
see page 152

101

Simple Repair Procedures

The procedures described in this section can be done with the quaternary
pump in place in the system stack.

Table 7

Simple Repair Procedures

Procedure

Typical Frequency

Notes

“Exchanging the Active Inlet Valve
Cartridge or the Active Inlet Valve” on
page 103

If internally leaking

Pressure ripple unstable, run leak test for
verification

“Exchanging the Outlet Ball Valve” on
page 106

If internally leaking

Pressure ripple unstable, run leak test for
verification

“Exchanging the Purge Valve Frit or the
Purge Valve” on page 108

If internally leaking

Solvent dripping out of waste outlet when
valve closed

“Exchanging the Purge Valve Frit or the
Purge Valve” on page 108

If the frit shows indication A pressure drop of > 10 bar across the frit
of contamination or
(5 ml/min H2O with purge open) indicates
blockage
blockage

“Exchanging the Pump Seals and Seal
Wear-in Procedure” on page 112

If pump performance
indicates seal wear

Leaks at lower pump head side, unstable
retention times, pressure ripple unstable —
run leak test for verification

“Exchanging the Plungers” on page 115

If scratched

Seal life time shorter than normally
expected — check plungers while changing
the seals

“Installing the Continuous Seal Wash
Option” on page 116

If seals show indication of Leaks at lower pump head side, loss of wash
leaks
solvent

102

Repairing the Pump
Exchanging the Active Inlet Valve Cartridge or the Active Inlet Valve

Exchanging the Active Inlet Valve
Cartridge or the Active Inlet Valve
When required

If internally leaking (backflow)

Tools required

Wrench 14 mm
Pair of Tweezers

Material

Active inlet valve G1312-60010 (complete assembly)
Valve cartridge 5062-8562

Removing the Active Inlet Valve
1 Unplug the active inlet valve cable from the connector.
2 Disconnect the solvent inlet tube at the inlet valve.
3 Using a 14 mm wrench loosen the active inlet valve and remove the valve from
pump head.

Exchanging the Valve Cartridge
1 Using a pair of tweezers remove the valve cartridge from the actuator
assembly.
2 Before inserting the new valve cartridge clean the area in the actuator
assembly. Fill a syringe with alcohol and flush the cartridge area thouroughly.
3 Insert a new valve cartridge into the actuator assembly. Make sure the valve
cartridge is fully inserted into the actuator assembly.

103

Repairing the Pump
Exchanging the Active Inlet Valve Cartridge or the Active Inlet Valve

Figure 13

Active Inlet Valve Assembly

Valve body

Valve cartridge

Replacing the Active Inlet Valve
1 Insert the new, or rebuilt valve into the pump head. Using the 14 mm wrench
turn the nut until hand tight.
2 Position the valve that the solvent inlet tube connection points towards the
front.
3 Using the 14 mm wrench tighten the nut by turning the valve in its final
position (not more than a quarter turn). Do not overtighten the valve. The
solvent inlet tube connection should point to the right corner of the pump
head.
4 Reconnect the solvent inlet tube to active inlet valve and the active inlet valve
cable to the connector in the Z-panel.
5 After an exchange of the valve cartridge it may take several ml of pumping
with the solvent used in the current application, before the flow stabilizes at a
%-ripple as low as it used to be when the system was still working properly.

104

Repairing the Pump
Exchanging the Active Inlet Valve Cartridge or the Active Inlet Valve

Figure 14

Exchanging the Active Inlet Valve

Capillary
pump to
injection
device
Connector

Solvent inlet tube
Active inlet valve cable
Active inlet valve

105

Repairing the Pump
Exchanging the Outlet Ball Valve

Exchanging the Outlet Ball Valve
When required

If internally leaking

Tools required

Wrench 1/4 inch
Wrench 14 mm

Parts required

Outlet ball valve G1311-60012

NOTE

Before exchanging the outlet ball valve you can try to clean it in a sonic bath.
Place the valve in upright position (onto the plastic cap) in a small beaker with
alcohol. Place in a sonic bath for 5 – 10 minutes.
1 Using a 1/4 inch wrench disconnect the valve capillary from the outlet ball
valve.
2 Using the 14 mm wrench loosen the valve and remove it from the pump body.
3 Check that the new valve is assembled correctly and that the gold seal is
present (If the gold seal is deformed, it should be replaced).

Figure 15

Outlet Ball Valve Parts

Valve body

Gold seal
Plastic cap

4 Reinstall the outlet ball valve and tighten the valve.
5 Reconnect the valve capillary.

106

Repairing the Pump
Exchanging the Outlet Ball Valve

Figure 16

Exchanging the Outlet Ball Valve

Valve capillary

Outlet ball valve

107

Repairing the Pump
Exchanging the Purge Valve Frit or the Purge Valve

Exchanging the Purge Valve Frit or the
Purge Valve
When required

Frit – when plunger seals are exchanged or when contaminated or blocked (pressure drop of
> 10 bar across the frit at a flow rate of 5 ml/min of H20 with purge valve opened)
Purge valve – if internally leaking

Tools required

Wrench 1/4 inch
Wrench 14 mm
Pair of tweezers or toothpick

Parts required

PFTE frit (pack of 5) 01018-22707
Purge valve G1311-60009
1 Using a 1/4 inch wrench disconnect the pump outlet capillary at the purge
valve.
2 Disconnect the waste tube. Beware of leaking solvents due to hydrostatic
pressure.
3 Using the 14 mm wrench unscrew the purge valve and remove it.
4 Remove the plastic cap with the gold seal from the purge valve.
5 Using a pair of tweezers or a toothpick remove the frit

Figure 17

Purge Valve Parts.

Valve body

PTFE frit
Gold seal
Plastic cap

108

Repairing the Pump
Exchanging the Purge Valve Frit or the Purge Valve

6 Place a new frit into the purge valve with the orientation of the frit as shown
above.
7 Reinstall the cap and the gold seal.
NOTE

Before reinstallation always check the gold seal. A deformed seal should be
exchanged.
8 Insert the purge valve into the pump head and locate the pump outlet capillary
and the waste tube as shown in Figure 18.
9 Tighten the purge valve and reconnect outlet capillary and waste tubing.

Figure 18

Exchanging the Purge Valve

Pump outlet capillary

Purge valve
Waste tube

109

Repairing the Pump
Removing and Disassembling the Pump Head Assembly

Removing and Disassembling the Pump
Head Assembly
WAR NI N G

Never start the pump when the pump head is removed. This may
damage the pump drive.

When required

Exchanging the seals
Exchanging the plungers
Exchanging seals of the seal wash option

Tools required

Wrench 1/4 inch
4-mm hexagonal key

Preparations for this
procedure

Switch off quaternary pump at the main power switch

1 Disconnect all capillaries and tubes from the
pump head and disconnect the active inlet
valve cable.

2 Using a 4-mm hexagonal key stepwise
loosen and remove the two pump head
screws and remove the pump head from the
pump drive.

Pump head screws

110

Repairing the Pump
Removing and Disassembling the Pump Head Assembly

3 Place the pump head on a flat surface. Loosen
the lock screw (two revolutions) and while
holding the lower half of the assembly
carefully pull the pump head away from the
plunger housing.

Pump head

Lock screw

Plunger housing

4 Remove the support rings from the plunger
housing and lift the housing away from the
plungers.

Support ring

Plunger housing

Plunger

111

Repairing the Pump
Exchanging the Pump Seals and Seal Wear-in Procedure

Exchanging the Pump Seals and Seal
Wear-in Procedure

When required:
❏Seal leaking, if indicated by the results of the
leak test

1 Disassemble the pump head assembly (see
“Removing and Disassembling the Pump
Head Assembly” on page 110).

Tools required:
❏ 4-mm hexagonal key, Wrench 1/4 inch
Parts required:
❏ Seals (pack of 2) 5063-6589 (standard) or
0905-1420 (for normal phase applications)
For the seal wear-in procedure:
❏ Adapter AIV to inlet tube (0100-1847)
❏ Restriction capillary (5022-2159)
2 Using one of the plungers carefully remove
the seal from the pump head (be careful not
to break the plunger). Remove wear
retainers, if still present.

3 Clean the pump chambers, ensure all particulate matter is removed. Best cleaning results
will be achieved by removing all three valves
(see pages 103, 106 and 108) and injecting
solvent into each chamber.
Chambers

Seal

112

Repairing the Pump
Exchanging the Pump Seals and Seal Wear-in Procedure

4 Insert new seals into the pump head.

5 Reassemble the pump head assembly (see
“Reassembling the Pump Head Assembly” on
page 121). Reset seal wear counter and
liquimeter as described in the documentation.

Seals

Seal Wear-in Procedure
NOTE

This procedure is required for standard seals only (5063-6589), but it
will definetely damage the normal phase application seals
(0905-1420).
1 Place a bottle with 100 ml of Isopropanol in the solvent cabinet and place the
tubing (including bottle head assembly) of the channel used for the wear-in
procedure in the bottle.
2 Unscrew the connecting tube from MCGV to AIV. Screw the adapter
(0100-1847) to the AIV and connect the inlet tube from the bottle head directly
to it.
3 Connect the restriction capillary (5022-2159) to the purge valve. Insert its
other end into a waste container.
4 Open the purge valve and purge the system for 5 minutes with isopropanol at
a flow rate of 2 ml/min.
5 Close the purge valve, set the flow to a rate adequate to achieve a pressure of
350 bar. Pump 15 minutes at this pressure to wear in the seals. The pressure
can be monitored at your analog output signal, with the handheld controller,
Chemstation or any other controlling device connected to your pump.

113

Repairing the Pump
Exchanging the Pump Seals and Seal Wear-in Procedure

6 Turn OFF the pump, slowly open the purge valve to release the pressure from
the system, disconnect the restriction capillary and reconnect the outlet
capillary at the purge valve and the connecting tube from MCGV to the AIV.
7 Rinse your system with the solvent used for your next application.

114

Repairing the Pump
Exchanging the Plungers

Exchanging the Plungers
1 Disassemble the pump head assembly (see
“Removing and Disassembling the Pump
Head Assembly” on page 110).

When required:
❏When scratched
Tools required:
❏4-mm hexagonal key
Parts:
❏Plunger 5063-6586

2 Check the plunger surface and remove any
deposits or layers. Cleaning can be done with
alcohol or tooth paste. Replace plunger if
scratched.

3 Reassemble the pump head assembly (see
“Reassembling the Pump Head Assembly” on
page 121)

Plunger surface

115

Repairing the Pump
Installing the Continuous Seal Wash Option

Installing the Continuous Seal Wash Option

1 Disconnect all capillaries and tubes from the
pump head and disconnect the active inlet
valve cable.

Tools required:
❏4-mm hexagonal key
Parts:
❏Seal wash kit (01018-68722)

2 Using a 4-mm hexagonal key stepwise
loosen and remove the two pump head
screws and remove the pump head from the
pump drive.

3 Place the pump head on a flat surface. Loosen
the lock screw (two revolutions) and while
holding the lower half of the assembly
carefully pull the pump head away from the
plunger housing.
Pump head

Lock screw

Pump head screws

116

Repairing the Pump
Installing the Continuous Seal Wash Option

4 Remove the support rings from the plunger
housing and lift the housing away from the
plungers.

5 Check the plunger surface and remove any
deposits or layers. Cleaning can be done with
alcohol or tooth paste. Replace plunger if
scratched.

Support ring
Plunger surface

Plunger housing

Plunger

6 Install the support ring assembly from the
seal wash option kit into the plunger housing.

7 If necessary replace the pump seals (see
page 112 ). Reassemble the pump head
(see page 121 ).

Seal keeper
Seal wash support ring

Seal

Plunger housing

Plunger

117

Repairing the Pump
Installing the Continuous Seal Wash Option

1 Route the wash inlet tube into a bottle filled with a mixture of distilled water
and isopropanol (90/10) and place the bottle above the pump (hydrostatic
pressure) in the solvent cabinet.
2 Route the outlet of the wash tube into a waste container.
3 The flow rate should be set to approximately 20 drops/minute. Use the
velocity regulator attached to the wash tube to regulate the flow rate.
NOTE

The seals should never run dry. Running dry will significantly reduce the
lifetime of the seals.

118

Repairing the Pump
Exchanging the Wash Seals

Exchanging the Wash Seals
1 Disassemble the pump head assembly (see
“Removing and Disassembling the Pump
Head Assembly” on page 110).

Tools required:
❏4-mm hexagonal key
❏Insert tool
Parts:
❏Wash Seal 0905-1175
❏Gasket, seal wash (pack of 6) 5062-2484

2 Remove the seal keeper and the seal wash
support rings from the plunger housing.
Remove the seal keeper from the support ring
assembly.

3 Using the blade of a flat-blade screwdriver
remove the seal wash gasket and the
secondary seal from the support ring.

Seal keeper
Seal wash support ring

Plunger housing

Secondary seal

Seal wash support ring
Plunger

119

Repairing the Pump
Exchanging the Wash Seals

4 Using the insert tool press the secondary seal
(spring pointing upwards) into the recess of
the support ring. Place a seal wash gasket in
the recess of the support ring.

Insert tool

Seal
Support ring

120

5 Reassemble the pump head assembly (see
“Reassembling the Pump Head Assembly” on
page 121).

Repairing the Pump
Reassembling the Pump Head Assembly

Reassembling the Pump Head Assembly
1 Place the support rings on the plunger
housing (plungers not installed) and snap the
pump head and plunger housing together.

Tools required:
❏4-mm hexagonal key
❏Pump head grease (79846-65501)

Pump head

Support ring

Plunger housing

2 Insert the plungers and carefully press them
into the seal.

3 Tighten the lock screw.

Plunger

Lock screw

121

Repairing the Pump
Reassembling the Pump Head Assembly

4 Slide the pump head assembly onto the
metering drive. Apply a small amount of
pump head grease to the pumphead screws
and the balls of the spindle drive. Tighten the
pumphead screws stepwise with increasing
torque.
Metering drive

Balls of spindle drive

Pump head

Pumphead screws

122

5 Reconnect all capillaries, tubes and the active
inlet valve cable to its connector.

Repairing the Pump
Exchanging the Multi-Channel Gradient Valve (MCGV)

Exchanging the Multi-Channel Gradient
Valve (MCGV)
NOTE

The lifetime of the multi-channel gradient valve can be maintained by
regularly flushing the valve, especially when using buffer solutions. If using
buffer solutions, flush all channels of the valve with water to prevent
precipitation of the buffer. Salt crystals can be forced into an unused channel
and form plugs that may lead to leaks of that channel. Such leaks will interfere
with the general performance of the valve
When using buffer solutions and organic solvents in the Agilent 1100
Quaternary Pump it is recommended to connect the buffer solution to one of
the bottom ports and the organic solvent to one of the upper gradient valve
ports. It is best to have the organic channel directly above the salt solution
channel (e.g., A - salt solution, B - organic solvent).

Parts required

MCGV (exchange assembly, G1311-69701)

Tools required

Pozidriv #1

Preparations for this
procedure

Switch the quaternary pump off at the power switch.
Remove the front cover to have access to the pump mechanics.

123

Repairing the Pump
Exchanging the Multi-Channel Gradient Valve (MCGV)

1 Disconnect the connecting tube and the
solvent tubes from the MCGV, unclip them
from the tube clips and place them into the
solvent cabinet to avoid flow by hydrostatic
pressure. Unclip the waste tube from the
cover and remove the waste funnel from the
pump.

2 Press the lower sides of the cover to unclip it.
Remove the cover.

MCGV
Waste
funnel

Solvent
tubes

Waste
tube

Cover

Cover
Connecting tube MCGV to AIV

3 Disconnect the MCGV cable, unscrew the two
holding screws and remove the valve.

MCGV
cable

Holding
screws

4 Place the new MCGV into position. Make sure
that the valve is positioned with the
A-channel at the bottom-right position.
Tighten the two holding screws and connect
the cable to its connector.

MCGV
cable

Holding
screws
Channel A

124

Repairing the Pump
Exchanging the Multi-Channel Gradient Valve (MCGV)

5 Replace the MCGV cover. Reconnect the
waste funnel with the waste tube holder in
the top cover. Insert waste tube in the holder
in the waste pan and clip tube to the MCGV
cover.

Waste
funnel

Cover

6 Reconnect the tube from the active inlet valve
to the middle position of the MCGV and then
the solvent tubes at channel A to D of the
MCGV. Make sure the orientation of the
channels on the cover is labelled as shown
below, otherwhise re-label the cover.
Solvent
tubes

MCGV
Waste
funnel

Waste
tube

Cover
Connecting tube MCGV to AIV

125

Repairing the Pump
Exchanging the optional Interface Board

Exchanging the optional Interface Board
CA UT IO N

The interface board is sensitive to electrostatic discharge. Always use the ESD
kit when handling electronic boards.

When required

Board defective

Parts required

BCD (Interface) board (G1351-68701), see “Optional Interface Boards” on page 216
1 Switch off the quaternary pump at the main power switch, unplug the pump
from line power.
2 Disconnect cables from the interfaceboard connectors.
3 Loosen the screws. Slide out the interface board from the quaternary pump.
4 Install the new interface board. Secure screws.
5 Reconnect the cables to the board connector.
6 Reconnect the pump to line power.

Figure 19

Exchanging the Interface Board

BCD (Interface) board

126

Repairing the Pump
Exchanging Internal Parts

Exchanging Internal Parts

WAR NI N G

The following procedures require opening the main cover of the
quaternary pump. Always ensure the quaternary pump is disconnected
from line power when the main cover is removed. The security lever at
the power input socket prevents that the pump cover is taken off when
line power is still connected.

WAR NI N G

To disconnect the quaternary pump from line, unplug the power cord.
The power supply still uses some power, even if the switch on the front
panel is turned off.

WAR NI N G

NOTE

The electronics of the quaternary pump will not allow operation when the top
cover and the top foam are removed. A safety light switch on the main board
will inhibit the operation of the quaternary pump. Always operate the
quaternary pump with the top foam and top covers in place.

CA UT IO N

Internal components may be sensitive to electrostatic discharge (ESD).
Always use an ESD kit when handling internal parts.
The procedures in this section describe how to exchange internal parts. You
must remove the quaternary pump from the stack in order to open the main
cover.
127

Repairing the Pump
Removing the Top Cover and Foam

Removing the Top Cover and Foam
Tools required

Screwdriver Pozidriv #1

Preparations for this
procedure

Switch off quaternary pump at the main power switch.
Disconnect the solvent inlet and outlet tubes from the pump.
Beware of leaking solvents due to hydrostatic flow.
Remove the solvent cabinet from the quaternary pump.
Remove leak funnel with the waste tube from the top cover of the quaternary pump.

1 Remove the front cover by pressing the both
clip fasteners on both sides of the cover.

2 Unplug the power cord and move the lever
towards the power socket.

(2)
(1)
Lever

Clip fastener (1)

128

Repairing the Pump
Removing the Top Cover and Foam

3 Lift the clips on both sides of the top cover
(1). Remove the top cover (2).

4 Unscrew the screws on the top plate and
remove the plate by lifting its back first and
then sliding to the front.

Screws
(1)
(1)

(2)

Cover
Cover
clip
clip

5 If an optional interface board is installed,
remove it from the pump slot.

6 Remove the top foam.

Safety
light
switch

129

Repairing the Pump
Removing the Top Cover and Foam

Do not connect a power plug to the quaternary
pump after removing the top covers.
A safety light switch on the main board will
prevent operation when the covers are
removed.

7 Note the position of the safety light switch on
the main board.

Top foam cover

The next figure shows the position of the
safety light switch on the board.

Light light switch
Foam lever

130

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

Exchanging the Low Pressure Pump Main
Board (LPM Board)
When required

Board defective

Tools required

Wrench 14 mm
Wrench 7 mm
Wrench 5 mm

Parts required

LPM Board, G1311-66520, exchange part number G1311-69520
1 Turn off the pump, disconnect all cables and remove the pump from the stack.
2 Remove the top cover and foam (see “Removing the Top Cover and Foam” on
page 128).
3 Disconnect all connectors from the main board.

NOTE

When removing connectors, counterhold on connector J3 with one hand.

Figure 20

LPM Board Connectors

J4
S1

J11

J19

J16

J17
J23

J26
J24 J25

J30

131

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

Table 8

Figure 21

Identifying Connectors on the LPM Board
Connector

Description

Connector

Description

RS232

J17

Encoder

Remote

J19

AIV

Analog Pressure signal

J23

Leak sensor

GPIB

J24

Damper

J5/6

CAN connector

J25

Fan

Power supply

J26

Interface board

J16

Motor

J30

MCGV

Removing the Screws at the Back Plane.

GPIB
Remote
Analog output

Screws and Nut

Board recess

4 Remove the connector screws from the GPIB, Remote and the analog
pressure output connector.
5 Remove the board. Place the board on the ESD kit.

132

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

WAR NI N G

The RFI spring plate sitting on the board connectors is very sharp! Be
careful, not to cut yourself, when removing it from the old board an
sliding it onto the new board.
6 In most cases the RFI spring plate (Radio Frequency Interference spring plate,
prevents radio emissions from the instrument to ambient) remains on the
interface connectors of the board. Carefully remove the spring plate from the
old board and slide it onto the new board before installing the board in the
pump (the RFI spring plate is NOT part of an exchange board).

NOTE

If you have to exchange other parts also, continue with that work, first.
7 On the new board check the switch setting of address switch S1, see “Setting
the 8-bit Configuration Switch” on page 223.

NOTE

An incorrect switch setting (e.g., TEST/BOOT) may cause the pump to turn
into a basic mode (yellow or red flashing status light). In such a case turn off
the pump, re-set the address switches, and turn on the pump again.
8 Install the new board and reconnect the connectors. Make sure that the board
is fitted correctly in the board recess holes at the rear panel.
9 Refit the connector screws, and reconnect all connectors. Ensure the
connectors are seated securely.
10 Replace foam and top covers, see “Replacing the Top Cover and Foam” on
page 156.
11 Reinstall the pump in the stack. Reconnect all cables. Turn on the quaternary
pump. If pump status indicator turns red continue with the section “Entering
the Type Command”, otherwhise continue with “Entering the Serial Number”
on page 135.

133

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

Entering the Type Command
NOTE

The main board is physically identical for the isocratic and the quaternary
pump. After the installation of a new mainboard the TYPE (isocratic or
quaternary) of the module is normally automatically detected. The specific
TYPE tells the pump how to configure itself during turn on. In some cases,
especially when a defective mainboard is replaced with an older version of
mainboard, the automatic TYPE detection does not work. When the TYPE of
the exchange main board does not match the pump, a pump configuration
error will occur during pump turn on. This will cause the pump status
indicator to be red. In this case the TYPE of the module has to be entered using
the procedure described in the following sections.
You must change the TYPE of the replacement main board to agree with the
quaternary pump (G1311A). The TYPE can be entered using either the
control module or the ChemStation, see “Entering the Type Command using
the Control Module” on page 134 or “Entering the Type Command using the
ChemStation” on page 135.
Entering the Type Command using the Control Module
1 Connect the control module to the pump.
2 From Views (press F5) select the System screen, then press Tests (F3).
3 Using the up/down arrows, make sure that the quaternary pump is highlighted
and press Enter. The Tests screen for the quaternary pump should now be
displayed.
4 While in the Tests screen, press m.m (m dot m). From the box now displayed,
select the Command line, and press Enter.
5 Into the box labeled Instr, enter the command TYPE G1311A.
6 Letters and numbers are created using the up and down arrows. There must
be a blank space between the word TYPE and the letter G.

NOTE

It is important to enter the TYPE command correctly. An incorrect type
command may cause the module to turn on in it's resident mode. In such a
case, re-enter the TYPE command correctly.
7 When the command is entered, press Enter to highlight the complete
command.

134

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

8 Press the Execute (F8) key. Below the box, a reply line should then say:
Reply RA 0000 TYPE "G1311A" .
9 Turn off the module, then turn it on again. Turn on should be normal. In the
Records screen, the product# column should indicate the quaternary pump. If
a chemstation is also connected, re-boot it now.
Entering the Type Command using the ChemStation
The TYPE is entered by typing a specific command into the command line at
the bottom of the main user interface screen.
1 To enter the TYPE for a specific module, type the following command into the
command line:
print sendmodule$(lpmp, "TYPE G1311A")
NOTE

It is important to enter the TYPE command correctly. An incorrect type
command may cause the module to turn on in it’s resident mode. In such a
case, re-enter the TYPE command correctly.
2 The reply line will respond with RA 0000 Type "G1311A".
3 Turn the quaternary pump off, then on again. Then, re-boot the ChemStation.
Boot up and subsequent control of the system should be normal.
4 The TYPE of a module can also be identified by typing the following command
into the command line:
print sendmodule$ (lpmp, "TYPE?")
The reply line will give the module TYPE.

Entering the Serial Number
Entering the Serial Number using the Control Module
1 Connect the control module to the quaternary pump. Turn on the pump.
2 In the control module, press Views (F5) and select the system screen, then
press Records (F4). Using the up/down arrows, make sure that the quaternary
pump is highlighted.
3 Press FW Update (F5). Now, press the m key. This will display a box which
says Update Enter Serial#.

135

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

4 Press Enter. This will display the box labeled Serial#.
5 Letters and numbers are created using the up and down arrows. Into the box
labeled Serial#, enter the 10-character serial number for the quaternary pump.
When the 10-character serial number is entered, press Enter to highlight the
complete serial number. Then, press Done (F6).
NOTE

For firmware revisions below A02.00 it is very important never to press Done
if the Serial# box is blank. In this case, the module can no longer be recognized
by either the control module or the ChemStation. The main board must then
be replaced.
6 Turn the quaternary pump off, then on again. The Records screen should
display the correct serial number.
7 If a ChemStation is also connected, re-boot the ChemStation now as well.
Entering the Serial Number using the ChemStation
Module serial numbers are entered by typing specific commands into the
command line at the bottom of the main user interface screen.
1 To enter a module serial number, type the following command into the
command line:
print sendmodule$(lpmp, "ser YYYYYYYYYY")
Where: YYYYYYYYYY is the 10-character serial number of the quaternary
pump

NOTE

The first two characters are letters, which should be capitalized.
The reply line will respond with RA 0000 SER followed by the module serial
number you just entered.
2 Turn off the quaternary pump, then on again. Then, re-boot the ChemStation.
If the serial number you have just entered is different than the original module
serial number, you will be given the opportunity to edit the configure 1100
access screen during the re-boot of the ChemStation.
3 After boot-up, the serial number you have just entered can be seen under the
Instrument menu of the main user interface screen. The serial number of the
quaternary pump can also be seen by typing the following command into the
command line:

136

Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)

print sendmodule$ (lpmp, "ser?") The reply line will give the serial number of
the quaternary pump.

Replacing the Quaternary Pump’s Firmware
The installation of new firmware is required
• if a new version solves problems of the currently installed version.
• if the version of firmware on the new main board (LPM) after an exchange
of the board is older than the one previously installed.
To upgrade the quaternary pump’s firmware follow the procedures and
instructions given on the internet @:
http://www.agilent.com/chem
to download and install always the newest available version of firmware on
your system or call your local service provider for assistance.

137

Repairing the Pump
Exchanging the Damper

Exchanging the Damper
When required

No pressure output or when leaking

Tools required

Screwdriver Pozidriv #1
Wrench 1/4 inch

Parts required

Damper 79835-60005

1 Switch off the pump at the main power
switch, remove all cables and tubings,
remove the pump from the stack. Remove the
front cover, top cover and top foam section
(see “Removing the Top Cover and Foam” on
page 128).

2 Remove the gradient valve (MCGV) cover
(see “Exchanging the Multi-Channel Gradient
Valve (MCGV)” on page 123).

Cover

138

Repairing the Pump
Exchanging the Damper

3 Disconnect the two damper capillaries.

4 Loosen the screws of the Z-panel and take it
out of the instrument.
Screws

Damper
capillaries

5 Disconnect the damper connector at the main
board (J24). Lift the damper out of its
position.

Damper

Damper
Connector

Z-panel

6 Place the new damper into the recess and
connect to the main board (J24).

Damper

Damper
Connector

139

Repairing the Pump
Exchanging the Damper

7 Place the Z-panel into position and fix it with
the two screws.

8 Reconnect the two damper capillaries.

Screws

Z-panel

9 Clip the valve cover into its position and
connect the tubings back to the valve
ports.

140

Reconnect

10 Replace the top foam section, optional
interface board (if installed), metal cover and
top cover (see “Replacing the Top Cover and
Foam” on page 156). Replace the pump on
stack, reconnect all tubings and cables.

Repairing the Pump
Exchanging the Fan

Exchanging the Fan
When required

Fan not running

Tools required

Screwdriver Pozidriv #1

Parts required

Fan, part number 3160-1016
1 Switch off the pump at the main power switch, remove all cables and tubings,
remove the pump from the stack.
2 Remove the front cover, top covers and foam (see “Removing the Top Cover
and Foam” on page 128)
3 Disconnect the fan connector at the processor board (J25).
4 Slide the cables on the fan housing aside and lift the fan out of the quaternary
pump.
5 Slide the new fan into its position and connect to J25 on the main board.

CA UT IO N

Make sure that air flow is directed as indicated (same direction for arrow on
the fan and arrow on the bottom foam).
6 Reinstall foam, top covers and front cover, see “Replacing the Top Cover and
Foam” on page 156.
7 Replace the pump on stack, reconnect all tubings and cables.

141

Repairing the Pump
Exchanging the Fan

Figure 22

Exchanging the Fan
J25, fan

Air flow

142

Repairing the Pump
Exchanging the Pump Drive

Exchanging the Pump Drive
WAR NI N G

Never start the pump when the pump head is removed. This may
damage the pump drive.

When required:
❏ Error message: Motor Drive Power
Tools required:
❏ Screwdriver Pozidriv #1

❏ Wrench 1/4 inch
❏ 4-mm hexagonal key
Part required:
❏ Pump drive G1311-60001, exchange part
number G1311-69001

143

Repairing the Pump
Exchanging the Pump Drive

2 Remove the tubings from the gradient
valve (MCGV) and remove the valve
cover (see “Exchanging the Multi-Channel
Gradient Valve (MCGV)” on page 123).

3 Disconnect all capillaries and tubes from the
pump head and disconnect the active inlet
valve connector.

Cover

4 Loosen the screws of the Z-panel and take it
out of the instrument.
.

5 Using a 4-mm hexagonal key stepwise
loosen and remove the two pump head
screws and remove the pump head from the
pump drive.

Screws

Z-panel

144

Pump head screws

Repairing the Pump
Exchanging the Pump Drive

6 Disconnect the pump drive cables from the
main board (J16, J17) and lift the drive out of
the foam.

7 Place the new pump drive into the recess in
the foam part and connect the cables to the
connectors on the main board (J16 Motor, J17
Encoder).

J16

J17

8 Reinstall the pump head and fix with the two
screws.

9 Replace the Z-panel and fix it with the two
screws.
Screws

Pump head screws

Z-panel

145

Repairing the Pump
Exchanging the Pump Drive

10 Replace the MCGV cover and connect the
connection tube to the middle position of the
MCGV (see “Exchanging the Multi-Channel
Gradient Valve (MCGV)” on page 123).

Cover

146

11 Replace the pump on stack, reconnect all
tubings and cables.

Repairing the Pump
Exchanging the Power Supply

Exchanging the Power Supply
1 Remove the pump from the stack, remove the
front cover, top cover and top foam section
(see “Removing the Top Cover and Foam” on
page 128).

When Required:
❏If defective
Tools required:
❏Screwdriver Pozidriv #1
❏Wrench 1/4 inch
❏Wrench 14 mm
❏Wrench 7 mm
❏Wrench 5 mm
Part required:
❏Power supply 0950-2528
Preparation for this procedure:
❏Switch off the pump at the main power
switch, remove all cables and tubings
2 Disconnect all capillaries, tubes and
connectors from the pump head and the
damper. Remove the MCDV cover.

3 Loosen the two Z-panel screws and remove
it.
Screws

Pump head

Damper
MCGV
Z-panel

147

Repairing the Pump
Exchanging the Power Supply

4 Disconnect the connectors of the pump
assembly (J16, J17), fan (J25) and damper
(J24) at the main board and lift the three
assemblies out of the foam. Disconnect all
remaining connectors at the main board.

5 Remove the LPM board, see “Exchanging the
Low Pressure Pump Main Board (LPM
Board)” on page 131.

6 Push the leak sensor cable through the recess
in the foam and lift the bottom foam out of the
instrument.

7 Loosen and remove the power supply screws
at the rear panel.

Power supply screws

148

Repairing the Pump
Exchanging the Power Supply

8 Unclip the power supply light pipe from the
power supply and pull out the coupler.

9 Lift the power supply out of the unit.

Coupler

(2)

(1)

Light pipe

10 Place the new power supply into the
instrument and fix the two screws at the back
plane.

11 Install the coupler onto the power supply
switch and clip the light pipe back onto the
coupler.

Coupler

(2)

(1)

Light pipe

149

Repairing the Pump
Exchanging the Power Supply

12 Slide the leak sensor cable through the foam
and replace the bottom foam.

13 Reinstall the main board, see “Exchanging
the Low Pressure Pump Main Board (LPM
Board)” on page 131.

14 Re-install pump assembly, fan and damper
into the bottom foam and re-connect to the
main board.

15 Place the Z-panel into its position and tighten
the two screws.
Screws

Z-panel

150

Repairing the Pump
Exchanging the Power Supply

16 Clip the MCGV cover into position.
Reconnect all capillaries, tubes and cables to
the pump head, the MCGV and the damper.

17 Install foam and top cover, see “Replacing the
Top Cover and Foam” on page 156. Replace
the pump on stack, reconnect all tubings and
cables.

151

Repairing the Pump
Exchanging the Leak Sensor

Exchanging the Leak Sensor
When required

Leak messages without leak in the leak pan

Tools required

Screwdriver Pozidriv #1
Wrench 1/4 inch
Wrench 14 mm
Wrench 7 mm
Wrench 5 mm

Parts required

Leak sensor 5061-3356
1 Switch off the pump at the main power switch, remove all cables and tubings,
remove the pump from the stack.
2 Remove the top covers and foam, see “Removing the Top Cover and Foam” on
page 128.
3 Remove pump assembly, fan, damper and the bottom foam, see “Exchanging
the Power Supply” on page 147.
4 Remove the main board, see “Exchanging the Low Pressure Pump Main Board
(LPM Board)” on page 131.
5 Unclip the leak pan and place it in front of the instrument.
6 Pull the leak sensor out of the leak pan and push the leak sensor cable and
connector through the metal plate.
7 Push the connector of the new sensor through the metal plate.
8 Place the leak sensor into the leak pan, see Figure 23 and clip the pan back
into its position.
9 Reinstall the bottom foam. Make sure that the leak sensor cable is not covered
by the foam.
10 Replace the main board, see “Exchanging the Low Pressure Pump Main Board
(LPM Board)” on page 131.
11 Install the pump assembly, the fan, the damper and the Z-panel, see
“Exchanging the Power Supply” on page 147. Reconnect all cables and
capillaries.
12 Replace top foam and top cover, see “Replacing the Top Cover and Foam” on
page 156.
152

Repairing the Pump
Exchanging the Leak Sensor

13 Replace the pump on stack, reconnect all tubings and cables.
Figure 23

Exchanging the Leak Sensor

To main board J23

Leak sensor

Leak pan

153

Repairing the Pump
Exchanging the Status Light Pipe

Exchanging the Status Light Pipe
When required

If part is broken

Tools required

Screwdriver Pozidriv #1

Part required

Status light pipe 5041-8384

Preparation for this procedure:
❏Remove the front cover and top cover, see “Removing the Top Cover and Foam” on page 128.

1 The status light pipe is clipped into the top
cover.

154

2 Replace the top cover, see “Replacing the Top
Cover and Foam” on page 156.

Repairing the Pump
Assembling the Main Cover

Assembling the Main Cover
When required

If cover is broken

Tools required

None

Parts required

Cover kit 5062-8565 (includes base, top, left and right)

NOTE

The cover kit contains all parts, but it is not assembled.

WAR NI N G

In case you insert the left or right side in the opposite position, you
may not be able to remove the side from the top part.

1 Place the top part on the bench and insert the
left and right side into the top part.

2 Replace the cover.

Front

3 Replace the quaternary pump into the stack and reconnect the cables and capillaries.
4 Turn on the quaternary pump.

155

Repairing the Pump
Replacing the Top Cover and Foam

Replacing the Top Cover and Foam
Tools required

Screwdriver Pozidriv #1

Preparations for this
procedure

Make sure that after your repair all assemblies, cables, capillaries and connectors are
located in its correct place.

1 Replace the top foam section.

2 Make sure that the foam is installed correctly
and is located in the safety light switch.

Light switch

156

Repairing the Pump
Replacing the Top Cover and Foam

3 Location of foam in the light switch.

4 Replace the optional interface board.

Light switch

5 Replace the metal cover (slide the metal tabs
into place (1) underneath the Z-Panel in the
front, then lower the back of the metal plate
(2)) and fix the two holding screws.

6 Replace the top cover. Replace the pump on
stack, reconnect all tubings and cables.

(1)
(2)
Holding
screws

157

Repairing the Pump
Replacing the Top Cover and Foam

7 Ensure clips are seated correctly and, move
the lever back.

8 Place the quaternary pump back to its
position in the stack, place vacuum degasser
and solvent cabinet back in place and
re-connect all tubes and capillaries.

Lever

9 Replace the leak funnel with the waste tube.
Locate the lower end of the waste tube in the
holder of the leak pan and clip tube to the
holder at the gradient valve cover.

Leak funnel

Waste tube holder

158

10 Replace the front covers and reconnect the
power cable to pump and on-line degasser
and switch the modules on.

Parts and Materials
Detailed illustrations and lists for identification
of parts and materials

Overview of Main Assemblies

Figure 24

Overview of Main Assemblies (Front View)
5

11
8

10
9

160

Parts and Materials
Overview of Main Assemblies

Table 9

Repair Parts - Pump Housing and Main Assemblies (Front View)
Item

Description

Part Number

Pump head, see page 172

G1311-60004

Pump drive assembly

G1311-60001

Exchange assembly — pump drive

G1311-69001

Cable assembly — AIV to main board

G1311-61601

Low-pressure pump main board (LPM)

G1311-66520

Exchange assembly — LPM board

G1311-69520

Cable to MCGV

G1311-61600

Fan assembly

3160-1016

Damping unit

79835-60005

Leak pan — pump

5041-8390

Multi-gradient assembly (MCGV)

G1311-67701

Exchange assembly — MCGV

G1311-69701

Screw, M4, 40 mm lg — MCGV

0515-0906

Rubber holder — MCGV

1520-0401

MCGV cover

G1311-44101

161

Parts and Materials
Overview of Main Assemblies

Figure 25

Overview of Main Assemblies (Rear View)

(3)
(1)
(2)

(4)

(5)
(6)
(7)

Table 10

Repair Parts - Pump Housing and Main Assemblies (Rear View)
Item

Description

Part Number

Nut M14 — analog output

2940-0256

Washer — analog output

2190-0699

Standoff — remote connector

1251-7788

Standoff — GPIB connector

0380-0643

Power supply (behind rear panel)

0950-2528

Screw, M4, 7 mm lg — power supply

0515-0910

Washer — power supply

2190-0409

162

Parts and Materials
Control Module (B-version)

Control Module (B-version)

Table 11

Control Module (B-version)
Item

Figure 26

Description

Part Number

Control module, replacement part including cable

G1323-67001

Plastic Housing Kit, includes front, back and a clamp

5062-8583

CAN cable, Agilent 1100 module to control module

G1323-81600

Control Module B-version

163

Parts and Materials
Solvent Cabinet

Solvent Cabinet

Table 12

Figure 27

Solvent Cabinet Parts
Item

Description

Part Number

Solvent cabinet, including all plastic parts

5062-8581

Name plate, Agilent 1100

5042-1312

Front panel, solvent cabinet

5062-8580

Leak pan, solvent cabinet

5042-1307

Bottle transparent

9301-1420

Bottle amber

9301-1450

Bottle-head assembly, see page 165

G1311-60003

Solvent Cabinet Parts
7

2
1

164

5/6

Parts and Materials
Bottle Head Assembly

Bottle Head Assembly

Table 13

Bottle-Head Assembly Parts
Item

Figure 28

Description

Part Number

Complete assembly

G1311-60003

Ferrules with lock ring

5063-6598 (10x)

Tube screw

5063-6599 (10x)

Wire marker

No part number

Solvent tubing, 5 m

5062-2483

Frit adapter (pack of 4)

5062-8517

Solvent inlet filter

5042-1347

Bottle-Head Assembly Parts
3
4
2
1

5
6

165

Parts and Materials
Hydraulic Path

Hydraulic Path

Table 14

Figure 29

Hydraulic Path
Item

Description

Part Number

Outlet capillary, pump to injector device

G1312-67305

Outlet Capillary, pump to thermostattable autosampler

G1329-87300

Bottle-head assembly, bottle to vacuum degasser (see
“Bottle Head Assembly” on page 165)

G1311-60003

Solvent tube, vacuum degasser to MCGV (pack of 4)

G1322-67300

Capillary, plunger 1 to damper

G1311-67301

Capillary, damper to plunger 2

G1311-67300

Connecting tube, MCGV to AIV

G1311-67304

Waste tube, reoder pack, 5 m

5062-2461

Hydraulic Flow Path of the Quaternary Pump
1

166

Parts and Materials
Cover Parts

Cover Parts

Table 15

Figure 30

Cover Parts
Item

Description

Part Number

Cover kit (includes top, both sides, base)

5062-8565

Front plate

5062-8566

Logo plate, Agilent 1100

5042-1312

Cover Parts

1 (top)
3
1 (base)

1 (side)

167

Parts and Materials
Sheet Metal Kit

Sheet Metal Kit

Table 16

Figure 31

Sheet Metal Kit
Item

Description

Part Number

Sheet metal kit, includes top, base and Z-panel

G1311-68701

Screw, for cover and Z-Panel

5022-2112

Board cover

5001-3772

Sheet Metal Kit

2
3

2
1

Z-panel

168

Parts and Materials
Foam Parts

Foam Parts

Table 17

Figure 32

Foam Parts
Item

Description

Part Number

Foam Kit (includes upper and lower foam)

G1311-68702

Bushing, for pump drive

1520-0404

Board Guides

5041-8395

Foam Parts

3
3

1 (upper foam)

2
2

1 (lower foam)

169

Parts and Materials
Power and Status Light Pipes

Power and Status Light Pipes

Table 18

Figure 33

Power and Status Light Pipes
Item

Description

Part Number

Power switch coupler

5041-8383

Light pipe — power switch

5041-8382

Power switch button

5041-8381

Light pipe — status lamp

5041-8384

Power and Status Light Pipes

170

Parts and Materials
Leak Parts

Leak Parts

Table 19

Figure 34

Leak Parts
Item

Description

Part Number

Leak sensor

5061-3356

Tube clip

5041-8387

Leak pan, pump

5041-8390

Leak funnel

5041-8388

Holder, leak funnel

5041-8389

Corrugated waste tube (reorder pack), 5m

5062-2463

Leak Parts

5
6

171

Parts and Materials
Pump Head Assembly

Pump Head Assembly

Table 20

Pump Head Assembly
Item

Description

Part Number

Complete assembly, including items marked with *

G1311-60004

Sapphire plunger

5063-6586

Plunger housing (including spring)

G1311-60002

Support ring

5001-3739

Seal (pack of 2) or
Seal (pack of 2), for normal phase applications

5063-6589
0905-1420

Pump chamber housing

G1311-25200

Active inlet valve (complete with cartridge)

G1312-60010

Replacement cartridge for active inlet valve

5062-8562

Outlet ball valve

G1311-60012

Screw lock

5042-1303

Purge valve assembly

G1311-60009

10*

Screw M5, 60 mm lg

0515-2118

172

Parts and Materials
Pump Head Assembly

Figure 35

Pump Head Assembly

10
7
9

8
5

3
6

173

Parts and Materials
Pump Head Assembly with Seal Wash Option

Pump Head Assembly with Seal Wash
Option

Table 21

Pump Head Assembly with Seal Wash Option
Item

Description

Part Number

Complete assembly, including parts marked with *

G1311-60005

Sapphire plunger

5063-6586

Plunger housing (including spring)

G1311-60002

Support ring, seal wash

5062-2465

Secondary seal

0905-1175

Wash tube (1.0 m)

0890-1764

Gasket, seal wash (pack of 6)

5062-2484

Seal keeper

5001-3743

Seal (pack of 2) or
Seal (pack of 2), for normal phase applications

5063-6589
0905-1420

Pump chamber housing

G1311-25200

Active inlet valve

G1312-60010

Replacement cartridge for active inlet valve

5062-8562

Outlet ball valve (complete with cartridge)

G1311-60012

12*

Screw lock

5042-1303

Purge valve

G1311-60009

14*

Screw M5, 60 mm lg

0515-2118

Seal wash upgrade kit (see page 180 )

01018-68722

174

Parts and Materials
Pump Head Assembly with Seal Wash Option

Figure 36

Pump Head with Seal Wash Option

14
11

13
12

5
4

7
10

175

Parts and Materials
Outlet Ball Valve Assembly

Outlet Ball Valve Assembly

Table 22

Outlet Ball Valve Assembly
Item

Figure 37

Description

Part Number

Outlet ball valve — complete assembly

G1311-60012

Socket cap

01018-25209

Outlet valve housing screw

01018-22410

Gold seal, outlet

5001-3707

Cap (pack of 4)

5062-2485

Outlet Ball Valve Assembly
1
2

3
4

176

Parts and Materials
Purge Valve Assembly

Purge Valve Assembly

Table 23

Purge-Valve Assembly
Item

Figure 38

Description

Part Number

Purge valve — complete assembly

G1311-60009

Valve body

No part number

PTFE frit (pack of 5)

01018-22707

Gold seal

5001-3707

Cap (pack of 4)

5062-2485

Purge-Valve Assembly

2
3

177

Parts and Materials
Active Inlet Valve Assembly

Active Inlet Valve Assembly

Table 24

Active Inlet Valve Assembly
Item

Figure 39

Description

Part Number

Active inlet valve — complete assembly

G1312-60010

Valve body

No part number

Valve cartridge

5062-8562

Active Inlet Valve Assembly

Valve body

Valve cartridge

178

Parts and Materials
Accessory Kit G1311-68705

Accessory Kit G1311-68705

Table 25

Tools and Accessories
Description

Part Number

Wrench 14 mm

8710-1924

Seal insert tool

01018-23702

PTFE Frit (pack of 5)

01018-22707

Corrugated waste tube (1.2 m)

no PN

Corrugated waste tube (reorder number), 5m

5062-2463

Velocity regulator (reorder number, 3)

5062-2486

ESD wrist strap

9300-1408

Hex key 4mm

8710-2392

Wrench 1/4 – 5/16 inch

8710-0510

Capillary, pump to injection device, 600 mm lg, ID 0.17 mm

G1312-67305

179

Seal Wash Option Kit 01018-68722

Table 26

Seal Wash Option
Description

Part Number

Support ring, seal wash (pack of 2)

5062-2465

Secondary seal (pre-installed in support ring)

0905-1175

Seal keeper (pack of 2)

5001-3743

Wash tube (1m)

0890-1764

Velocity regulator*

5062-2486

Seals insert tool

01018-23702

Seal (pack of 2)

5063-6589

Syringe **

5062-8534

Syringe adapter

0100-1681

Knife

no PN

Sanding Paper

no PN

*
**

Reorder number (pack of 3)
Reorder number (pack of 10)

180

Parts and Materials
Cable Overview

Cable Overview

WAR NI N G

Never use cables other than the ones supplied by Agilent Technologies
to ensure proper functionality and compliance with safety or EMC
regulations.

Table 27

Cables Overview
Type

Description

Part Number

Analog
cables

3390/2/3 integrators

01040-60101

3394/6 integrators

35900-60750

Agilent 35900A A/D converter

35900-60750

General purpose (spade lugs)

01046-60105

3390 integrator

01046-60203

3392/3 integrators

01046-60206

3394 integrator

01046-60210

3396A (Series I) integrato

03394-60600

Remote
cables

3396 Series II / 3395A integrator, see page 187
3396 Series III / 3395B integrator

03396-61010

HP 1050 modules / HP 1046A FLD

5061-3378

HP 1046A FLD

5061-3378

Agilent 35900A A/D converter

5061-3378

181

Parts and Materials
Cable Overview

Table 27

Cables Overview, continued
Type

BCD
cables

Description

Part Number

HP 1040 diode-array detector

01046-60202

HP 1090 liquid chromatographs

01046-60202

Signal distribution module

01046-60202

3392/3 integrators

18594-60510

3396 integrator

03396-60560

General purpose (spade Lugs)

18594-60520

Auxiliary Agilent 1100 Series vacuum degasser

G1322-61600

CAN
cables

Agilent 1100 module to module,0.5m lg
Agilent 1100 module to module, 1m lg

5181-1516
5181-1519

Agilent 1100 module to control module

G1323-81600

External
contacts

Agilent 1100 Series interface board to general
purpose

G1103-61611

GPIB
cable

Agilent 1100 module to ChemStation, 1 m

10833A

Agilent 1100 module to ChemStation, 2 m

10833B

RS-232
cable

Agilent 1100 module to a computer
This kit contains a 9-pin female to 9-pin female Null
Modem (printer) cable and one adapter.

34398A

LAN
cable

Twisted pair cross over LAN cable, 10 feet long
(for point to point connection)

5183-4649

Category 5 UTP cable, 8 m long
(for hub connections)

G1530-61480

182

Parts and Materials
Analog Cables

Analog Cables
One end of these cables provides a BNC connector to be connected to
Agilent 1100 Series modules. The other end depends on the instrument to
which connection is being made.
Agilent 1100 to 3390/2/3 Integrators
Connector
01040-60101

Pin
3390/2/3

Pin
Agilent 1100

Signal Name

Shield

Ground

2
3

Not connected
Center

4
5

Signal +
Connected to pin 6

Shield

Analog -

Connected to pin 4

Key

Not connected

Agilent 1100 to 3394/6 Integrators
Connector
35900-60750

Pin
3394/6

Pin
Agilent 1100

Signal Name
Not connected

Shield

Analog -

Center

Analog +

183

Parts and Materials
Analog Cables

Agilent 1100 to BNC Connector
Connector
8120-1840

Pin
BNC

Pin
Agilent 1100

Signal Name

Shield

Analog -

Center

Analog +

Pin
Agilent 1100

Signal Name

Agilent 1100 to General Purpose
Connector
01046-60105

Pin
3394/6
1

184

Not connected

Black

Analog -

Red

Analog +

Parts and Materials
Remote Cables

Remote Cables
One end of these cables provides a Agilent Technologies APG (Analytical
Products Group) remote connector to be connected to Agilent 1100 Series
modules. The other end depends on the instrument to be connected to.
Agilent 1100 to 3390 Integrators
Connector
01046-60203

Pin
3390

Pin
Agilent 1100

Signal Name

Active
(TTL)

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

185

Parts and Materials
Remote Cables

Agilent 1100 to 3392/3 Integrators
Connector
01046-60206

4 - Key

Pin
3392/3

Pin
Agilent 1100

Signal Name

Active
(TTL)

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

Pin
3394

Pin
Agilent 1100

Signal Name

Active
(TTL)

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

5,14

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

Agilent 1100 to 3394 Integrators
Connector
01046-60210

13, 15

NOTE

Not connected

START and STOP are connected via diodes to pin 3 of the 3394 connector.

186

Parts and Materials
Remote Cables

Agilent 1100 to 3396A Integrators
Connector
03394-60600

Pin
3394

Pin
Agilent 1100

Signal Name

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

5,14

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

13, 15

Active
(TTL)

Not connected

Agilent 1100 to 3396 Series II / 3395A Integrators
Use the cable 03394-60600 and cut pin #5 on the integrator side. Otherwise
the integrator prints START; not ready.

187

Parts and Materials
Remote Cables

Agilent 1100 to 3396 Series III / 3395B Integrators
Connector
03396-61010

Pin
33XX

Pin
Agilent 1100

Signal Name

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

13, 15

Active
(TTL)

Not connected

Agilent 1100 to HP 1050, HP 1046A or Agilent 35900 A/D Converters
Connector
5061-3378

188

Pin
HP 1050/....

Pin
Agilent 1100

Signal Name

Active
(TTL)

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

Parts and Materials
Remote Cables

Agilent 1100 to HP 1090 LC, HP 1040 DAD or Signal Distribution
Module
Connector
01046-60202

5 - Key

Pin
HP 1090

Pin
Active
Agilent 1100 Signal Name (TTL)

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

Pin
Agilent 1100

Signal Name

Active
(TTL)

1 - White

Digital ground

2 - Brown

Prepare run

Low

3 - Gray

Start

Low

4 - Blue

Shut down

Low

5 - Pink

Not connected

6 - Yellow

Power on

High

7 - Red

Ready

High

8 - Green

Stop

Low

9 - Black

Start request

Low

Agilent 1100 to General Purpose
Connector
01046-60201

Pin
Universal

189

Parts and Materials
BCD Cables

BCD Cables
One end of these cables provides a 15-pin BCD connector to be connected to
the Agilent 1100 Series modules. The other end depends on the instrument to
be connected to.
Agilent 1100 to 3392/3 Integrators
Connector
18584-60510

6 - Key

190

Pin
3392/3

Pin
Agilent 1100

Signal Name

BCD Digit

BCD 5

BCD 7

BCD 6

BCD 4

BCD 0\

BCD 3

BCD 2

BCD 1

Digital ground

+5V

Low

Parts and Materials
BCD Cables

Agilent 1100 to 3396 Integrators
Connector
03396-60560

Pin
3392/3

Pin
Agilent 1100

Signal Name

BCD Digit

BCD 5

BCD 7

BCD 6

BCD 4

BCD 0\

BCD 3

BCD 2

BCD 1

Digital ground

+5V

Low

Wire Color

Pin
Agilent 1100

Signal Name

BCD Digit

Green

BCD 5

Violet

BCD 7

Blue

BCD 6

Yellow

BCD 4

Black

BCD 0\

Orange

BCD 3

Red

BCD 2

Brown

BCD 1

Gray

Digital ground

White

+5 Vt

Agilent 1100 to General Purpose
Connector
18594-60520

Low

191

Parts and Materials
Auxiliary Cable

Auxiliary Cable
One end of this cable provides a modular plug to be connected to the
Agilent 1100 Series vacuum degasser. The other end is for general purpose.
Agilent 1100 Series Degasser to general purposes
Connector
G1322-81600

Color

Pin
Agilent 1100

Signal Name

White

Ground

Brown

Pressure signal

Green

Yellow

Grey

DC + 5 V IN

Pink

Vent

CAN Cable
Both ends of this cable provide a modular plug to be connected to
Agilent 1100 Series module’s CAN-bus connectors.
Agilent 1100 module to module, 0.5m 5181-1516
lg
Agilent 1100 module to module, 1m lg 5181-1519
Agilent 1100 module to control
module

192

G1323-81600

Parts and Materials
External Contact Cable

5
10
15

External Contact Cable

1
6
11

One end of this cable provides a 15-pin plug to be connected to Agilent 1100
Series module’s interface board. The other end is for general purpose.
Agilent 1100 Series Interface Board to general purposes
Connector
G1103-61611

Color

Pin
Agilent 1100 Signal Name

White

EXT 1

Brown

EXT 1

Green

EXT 2

Yellow

EXT 2

Grey

EXT 3

Pink

EXT 3

Blue

EXT 4

Red

EXT 4

Black

Not connected

Violet

Not connected

Grey/pink

Not connected

Red/blue

Not connected

White/green

Not connected

Brown/green

Not connected

White/yellow

156

Not connected

193

Parts and Materials
RS-232 Cable Kit

RS-232 Cable Kit
This kit contains a 9-pin female to 9-pin female Null Modem (printer) cable
and one adapter. Use the cable and adapter to connect Agilent Technologies
instruments with 9-pin male RS-232 connectors to most PCs or printers.
Agilent 1100 module to PC
RS-232 Cable Kit 34398A

Instrument
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
DB9
Male

194

PC
1
2
3
4
5
6
7
8
9
DB9
Female

1
2
3
4
5
6
7
8
9
DB9
Female

DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
DB9
Male

Parts and Materials
LAN Cables

LAN Cables
Recommended Cables
For point to point connection (not using a network hub) use a twisted pair
cross over LAN cable (P/N 5183-4649, 10 feet long).
For standard network connections using a hub use category 5 UTP cables,
(P/N G1530-61480, 8 m long).

195

Parts and Materials
LAN Cables

196

Introduction to the
Quaternary Pump
An introduction to the pump, instrument
overview, theory of operation, external
communication and internal connectors

Introduction to the Quaternary Pump
Introduction to the Quaternary Pump

Introduction to the Quaternary Pump
The quaternary pump comprises a solvent cabinet, a vacuum degasser and a
four-channel gradient pump. The four-channel gradient pump comprises a
high-speed proportioning valve and a pump assembly. It provides gradient
generation by low pressure mixing. Degassing is a must for a low-pressure
gradient system therefore the Agilent 1100 Series vacuum degasser is part of
the quaternary pump system. A solvent cabinet provides enough space for
four one-liter bottles. A continuous seal wash (optional) is available when the
quaternary pump is used with concentrated buffer solutions.
Figure 40

Overview of the Quaternary Pump

Power supply

Pump drive
LPM board
Pump head
Fan
Outlet ball valve
Damper

Purge valve

Active inlet valve
MCGV

198

Introduction to the Quaternary Pump
Overview

Overview
The quaternary pump is based on a two-channel, dual plunger in-series
design which comprises all essential functions that a solvent delivery system
has to fulfill. Metering of solvent and delivery to the high-pressure side are
performed by one pump assembly which can generate pressure up to 400 bar.
Degassing of the solvents is done in a vacuum degasser and solvent
compositions are generated on the low-pressure side by a high-speed
proportioning valve.
The pump assembly includes a pump head with an active inlet valve which
has an replaceable cartridge, and an outlet valve. A damping unit is
connected between the two plunger chambers. A purge valve including a
PTFE frit is fitted at the pump outlet for convenient priming of the pump
head.
A continuous seal wash (optional) is available when the quaternary pump is
used with concentrated buffer solutions.
Figure 41

Hydraulic Path of the Quaternary Pump
Vacuum chamber (Degasser)

From
solvent
bottles
Damper

Inlet
valve

Outlet
valve

To sampling
unit and
column

To waste

199

Introduction to the Quaternary Pump
Overview

How does the Pump Work?
The liquid runs from the solvent reservoir through the degasser to the MCGV
and from there to the active inlet valve. The pump assembly comprises two
substantially identical plunger/chamber units. Both plunger/chamber units
comprise a ball-screw drive and a pump head with one sapphire plunger for
reciprocating movement in it.
A servo-controlled variable reluctance motor drives the two ball-screw drives
in opposite directions. The gears for the ball-screw drives have different
circumferences (ratio 2:1) allowing the first plunger to move at twice the
speed of the second plunger. The solvent enters the pump head close to the
bottom limit and leaves it at its top. The outer diameter of the plunger is
smaller than the inner diameter of the pump head chamber allowing the
solvent to fill the gap in between. The first plunger has a stroke volume in the
range of 20–100 µl depending on the flow rate. The microprocessor controls
all flow rates in a range of 1 µl–10 ml/min. The inlet of the first
plunger/chamber unit is connected to the active inlet valve which is
processor-controlled opened or closed allowing solvent to be drawn into the
first plunger pump unit.
The outlet of the first plunger/chamber unit is connected through the outlet
ball valve and the damping unit to the inlet of the second plunger/chamber
unit. The outlet of the purge valve assembly is then connected to the
following chromatographic system.

200

Introduction to the Quaternary Pump
Overview

Figure 42

Principle of the Quaternary Pump
Damper

Chamber 2

Chamber 1
Purge valve

To mixing chamber
Inlet
valve

Outlet
valve
To waste

From solvent bottle
Seal
Plunger 1

Plunger 2

Ball screw drive

Gear

Motor with encoder

When turned on, the quaternary pump runs through an initialization
procedure to determine the upper dead center of the first plunger. The first
plunger moves slowly upwards into the mechanical stop of chamber and
from there it moves back a predetermined path length. The controller stores
this plunger position in memory. After this initialization the quaternary pump
starts operation with the set parameters. The active inlet valve is opened and
the down-moving plunger draws solvent into the first chamber. At the same
time the second plunger is moving upwards delivering into the system. After
a controller-defined stroke length (depending on the flow rate) the drive
motor is stopped and the active inlet valve is closed. The motor direction is
reversed and moves the first plunger up until it reaches the stored upper limit
and at the same time moving the second plunger downwards. Then the
sequence starts again moving the plungers up and down between the two
limits. During the up movement of the first plunger the solvent in the
201

Introduction to the Quaternary Pump
Overview

chamber is pressed through the outlet ball valve into the second chamber.
The second plunger draws in half of the volume displaced by the first plunger
and the remaining half volume is directly delivered into the system. During
the drawing stroke of the first plunger, the second plunger delivers the drawn
volume into the system.
For solvent compositions from the solvent bottles A, B, C, D the controller
divides the length of the intake stroke in certain fractions in which the
gradient valve connects the specified solvent channel to the pump input.

Table 28

Quaternary Pump Details
Delay volume

800–1100 µl, dependent on back pressure

Materials in contact with mobile phase
MCGV

PTFE

Pump head

SST, gold, sapphire, ceramic

Active inlet valve

SST, gold, sapphire, ruby, ceramic, PTFE

Outlet valve

SST, gold, sapphire, ruby

Adapter

SST, gold

Purge valve

SST, gold, PTFE, ceramic, PEEK

Damping unit

Gold, SST

For quaternary pump specifications, see Chapter 8 “Specifications”.

How Does Compressibility Compensation Work?
The compressibility of the solvents in use will affect retention-time stability
when the back pressure in the system changes (for example, ageing of
column). In order to minimize this effect, the pump provides a
compressibility compensation feature which optimizes the flow stability
according to the solvent type. The compressibility compensation is set to a
default value and can be changed through the user interface.
Without a compressibility compensation the following will happen during a
stroke of the first plunger. The pressure in the plunger chamber increases
and the volume in the chamber will be compressed depending on
backpressure and solvent type. The volume displaced into the system will be
reduced by the compressed volume.

202

Introduction to the Quaternary Pump
Overview

With a compressibility value set the processor calculates a compensation
volume, that is depending on the backpressure in the system and the selected
compressibility. This compensation volume will be added to the normal
stroke volume and compensates the previous described loss of volume
during the delivery stroke of the first plunger.

How Does Variable Stroke Volume Work?
Due to the compression of the pump-chamber volume each plunger stroke of
the pump will generate a small pressure pulsation, influencing the flow ripple
of the pump. The amplitude of the pressure pulsation is mainly dependent on
the stroke volume and the compressibility compensation for the solvent in
use. Small stroke volumes will generate pressure pulsations of smaller
amplitude than higher stroke volumes at same flow rates. In addition the
frequency of the pressure pulsations will be higher. This will decrease the
influence of flow pulsations on quantitative results.
In gradient mode smaller stroke volumes resulting in less flow ripple will
improve composition ripple.
The quaternary pump uses a processor-controlled spindle system to drive its
plungers. The normal stroke volume is optimized for the selected flow rate.
Small flow rates use a small stroke volume while higher flow rates use a
higher stroke volume.
The stroke volume for the pump is set to AUTO mode. This means that the
stroke is optimized for the flow rate in use. A change to larger stroke volumes
is possible but not recommended.

203

Introduction to the Quaternary Pump
Electrical Connections

Electrical Connections
• The GPIB connector is used to connect the pump with a computer. The
address and control switch module next to the GPIB connector determines
the GPIB address of your pump. The switches are preset to a default
address (Table 31 on page 218 or Table 35 on page 223). This address is
recognized at powercycling the module.
• The CAN bus is a serial bus with high speed data transfer. The two
connectors for the CAN bus are used for internal Agilent 1100 Series
module data transfer and synchronization.
• One analog output provides a pressure signal for integrators or data
handling systems.
• The interface board slot is used for external contacts and BCD bottle
number output or LAN connections.
• The REMOTE connector may be used in combination with other analytical
instruments from Agilent Technologies if you want to use features such as
start, stop, common shut down, prepare, and so on.
• With the appropriate software, the RS-232C connector may be used to
control the module from a computer through a RS-232C connection. This
connector is activated and can be configured with the configuration switch
next to the GPIB connector (see “Communication Settings for RS-232C
Communication” on page 224). See your software documentation for
further information.
• The power input socket accepts a line voltage of 100–120 or 220–240 volts
AC ± 10% with a line frequency of 50 or 60 Hz. Maximum power
consumption is 220 VA. There is no voltage selector on your module
because the power supply has wide-ranging capability. There are no
externally accessible fuses, because automatic electronic fuses are
implemented in the power supply. The security lever at the power input
socket prevents the module cover from being taken off when line power is
still connected.
WAR NI N G

Never use cables other than the ones supplied by Agilent Technologies
to ensure proper functionality and compliance with safety or EMC
regulations.

204

Introduction to the Quaternary Pump
Electrical Connections

Figure 43

Electrical Connections
Security lever

Slot for interface board

Analog pressure,
2mV/bar
APG Remote
RS-232C

CAN

GPIB

Power

Configuration switch

WAR NI N G

To disconnect the quaternary pump from line, unplug the power cord.
The power supply still uses some power, even if the power switch on
the front panel is turned off.

205

Introduction to the Quaternary Pump
Instrument Layout

Instrument Layout
The industrial design of the module incorporates several innovative features.
It uses Agilent’s E-PAC concept for the packaging of electronics and
mechanical assemblies. This concept is based upon the use of expanded
polypropylene (EPP) layers foam plastic spacers in which the mechanical
and electronic boards components of the module are placed. This pack is
then housed in a metal inner cabinet which is enclosed by a plastic external
cabinet. The advantages of this packaging technology are:
• virtual elimination of fixing screws, bolts or ties, reducing the number of
components and increasing the speed of assembly/disassembly,
• the plastic layers have air channels molded into them so that cooling air
can be guided exactly to the required locations,
• the plastic layers help cushion the electronic and mechanical parts from
physical shock, and
• the metal inner cabinet shields the internal electronics from
electromagnetic interference and also helps to reduce or eliminate radio
frequency emissions from the instrument itself.

206

Introduction to the Quaternary Pump
Early Maintenance Feedback (EMF)

Early Maintenance Feedback (EMF)
Maintenance requires the exchange of components in the flow path which
are subject to mechanical wear or stress. Ideally, the frequency at which
components are exchanged should be based on the intensity of usage of the
instrument and the analytical conditions, and not on a predefined time
interval. The early maintenance feedback (EMF) feature monitors the usage
of specific components in the instrument, and provides feedback when the
user-settable limits have been exceeded. The visual feedback in the user
interface provides an indication that maintenance procedures should be
scheduled.

EMF Counters
The quaternary pump provides a series of EMF counters for the pump head.
Each counter increments with pump use, and can be assigned a maximum
limit which provides visual feedback in the user interface when the limit is
exceeded. Each counter can be reset to zero after maintenance has been
done. The quaternary pump provides the following EMF counters:
• Pump Liquimeter
• Pump seal wear
Pump Liquimeter
The pump liquimeter displays the total volume of solvent pumped by the
pump head since the last reset of the counters. The pump liquimeter can be
assigned an EMF (maximum) limit. When the limit is exceeded, the EMF flag
in the user interface is displayed.
Seal Wear Counters
The seal wear counters display a value derived from pressure and flow (both
contribute to seal wear). The values increment with pump usage until the
counters are reset after seal maintenance. Both seal wear counters can be
assigned an EMF (maximum) limit. When the limit is exceeded, the EMF flag
in the user interface is displayed.

207

Introduction to the Quaternary Pump
Early Maintenance Feedback (EMF)

Using the EMF Counters
The user-settable EMF limits for the EMF counters enable the early
maintenance feedback to be adapted to specific user requirements. The wear
of pump components is dependent on the analytical conditions, therefore,
the definition of the maximum limits need to be determined based on the
specific operating conditions of the instrument.
Setting the EMF Limits
The setting of the EMF limits must be optimized over one or two
maintenance cycles. Initially, no EMF limit should be set. When performance
indicates maintenance is necessary, take note of the values displayed by
pump liquimeter and seal wear counters. Enter these values (or values
slightly less than the displayed values) as EMF limits, and then reset the EMF
counters to zero. The next time the EMF counters exceed the new EMF
limits, the EMF flag will be displayed, providing a reminder that maintenance
needs to be scheduled.

208

Introduction to the Quaternary Pump
The Electronics

The Electronics
The electronics are comprised of four main components:
• The low pressure pump main board (LPM), see page 210.
• Power supply, see page 228.
Optional:
• Interface board (BCD/external contacts), see page 216.
• Interface board (LAN), see page 217.

209

Introduction to the Quaternary Pump
The Low-Pressure Pump Main Board (LPM)

The Low-Pressure Pump Main Board
(LPM)
The board controls all information and activities of all assemblies within the
quaternary pump. The operator enters parameters, changes modes and
controls the quaternary pump through interfaces (CAN, GPIB or RS-232C)
connected to the user-interfaces. Figure 45 and Figure 46 show the block
diagrams of this board.
ASIC — Application-Specific Integrated Circuit
The application-specific integrated circuit (ASIC) includes all digital logic for
the core processor functions and also for module-specific functions.
Motor Drive
The drive comprises motor control, motor amplifier (drive) and current
control.
Active Inlet Valve Drive
The drive comprises two amplifiers for the two contacts of valve solenoid.
Gradient Valve Drive
The drive consists of the amplifiers for the four solenoids of the gradient
valve.
Pressure Converter
This block comprises a filter and amplifier for the pressure-sensor-signal, a
multiplexer, an A/D converter and an offset correction for the analog
pressure output signal. The output voltage is 2 mV/bar.
Leak Converter
This block comprises a PTC for the leak identification and a NTC for the
ambient temperature measurement. This assures that temperature changes
are not identified as leak. A leak would cool down the PTC and its change in
resistance results in a leak signal.

210

Introduction to the Quaternary Pump
The Low-Pressure Pump Main Board (LPM)

Fan Drive
The fan speed is controlled by the main processor depending on the internal
heat distribution in the quaternary pump. The fan provides a PWM signal
which is proportional to its speed. This fan status signal is used for
diagnostics.
Electronic Fuses
The valve circuits are electronically fused on the board. Any error on the
board or shortages of the valves will activate the electronic fuses that will
switch off the supply voltage. This prevents the damage to components.
Onboard Battery
An onboard lithium battery buffers the electronic memories when the
quaternary pump is turned off.
For safety information on Lithium batteries see “Lithium Batteries
Information” on page 263.
Interfaces
The quaternary pump provides the following interfaces:
• two CAN connectors as interface to other Agilent 1100 Series modules
• one GPIB connector as interface to the ChemStation
• one RS-232C for as interface to a computer
• one REMOTE connector as interface to other Agilent products
• one Analog Output for pressure signal output
• one optional interface board
Block Diagram Signal Explanations

control signal
data/ address
diagnose signals (digital)
diagnose signals (analog)
temperature of hybrid

211

Introduction to the Quaternary Pump
The Low-Pressure Pump Main Board (LPM)

Figure 45

Block Diagram Low Pressure Main Board (LPM)

MCGV

Active inlet
valve

4 valve drives

ASIC

Valve drive

Current control

Pump head

Motor

Motor
control
1
Data/
address

Drive

Control

Encoder
Processor

Motor drive

Multiplexer

Damper

Pressure
sensor

Filter &
amplifier

A/D converter
1

Integrator

Analog output

Offset
correction

pressure converter

Leak sensor
Amplifier & ϑ ambient measurement
Fan
Drive
Sensor

212

Introduction to the Quaternary Pump
The Low-Pressure Pump Main Board (LPM)

Figure 46

Interconnection Diagram Low Pressure Main Board (LPM)

Motor

Hardware
switch

J16
Motor drive

Encoder

AIV

Z-panel

MCGV

Z-panel

J17

+36 V

+24 V
+/-15V

Processor

J19

Inlet valve
drive

+36V

Electronic
fuse

J30

MCGV drive
C&D

+36 V

Electronic
fuse

MCGV drive
A&B

+36 V

Hardware
switch

+24 V

Electronic
fuse

+15 V

Leak
converter

+24 V

Fan drive

J23
Leak sensor
J25
Fan
J24

+/-15V

+36 V
+24 V
+/-15V

Damper

Damper
converter

LPM
power
supply

analog

Power

+5V

213

Introduction to the Quaternary Pump
Firmware Description

Firmware Description
The firmware of the instrument consists of two independent sections:
• a non-instrument specific section, called ‘resident system’,
• an instrument specific section, called ‘main system’.

Resident System
This resident section of the firmware is identical for all Agilent 1100 series
modules. Its properties are:
• the complete communication capabilities (GPIB, CAN, LAN and RS-232C),
• memory management,
• ability to update the firmware of the ‘main system’.

Main System
Its properties are:
• the complete communication capabilities (GPIB, CAN, LAN and RS-232C),
• memory management,
• ability to update the firmware of the ‘resident system’.
In addition the main system comprises the instrument functions that are
divided into common functions like
• run synchronisation via APG remote
• error handling,
• diagnostic functions and so on,
or module specific functions like
• internal events such as motor control, flow rates and so on,
• calculation of compensation values for variable strokes and pressures.

214

Introduction to the Quaternary Pump
Firmware Description

Firmware Updates
Firmware updates can be done using your user interface:
• handheld control module with files from a PC-card or
• Agilent ChemStation with files from floppy disk
The file naming conventions are:
xxxx-vvv.DLB, where
xxxxis the product number, e.g. 1311 for the G1311A QuaternaryPump), and
vvvis the revision number, for example 200 is revision 2.00.
For instructions refer to your user interface.
NOTE

Update of main system can be done in the resident system only.
Update of the resident system can be done in the main system only.

Figure 47

Firmware Update Mechanism
main FW update
Resident System

Main System

resident FW update

215

Introduction to the Quaternary Pump
Optional Interface Boards

Optional Interface Boards
The Agilent 1100 Series modules have one optional board slot that allows to
add an interface board to the modules.

Table 29

Optional Interface Boards
Description

Part Number

BCD Board

G1351-68701

Fuse 250 mA (four are on the board)

2110-0004

LAN Board (see next page for details)

BCD Board
The BCD board provides a BCD output for the bottle number of the
Agilent 1100 Series autosampler and four external contacts. The external
contact closure contacts are relay contacts. The maximum settings are: 30 V
(AC/DC); 250 mA (fused). There are general purpose cables available to
connect the BCD output, see “BCD Cables” on page 190 and the external
outputs, see “External Contact Cable” on page 193 to external devices.
Block Diagram BCD Board

RFI filter

Board
identification

Processor
interface

12
Line driver
+
External
contacts

216

BCD
connector

BCD register

250 mA
4×

RFI filter

Figure 48

External
contact
connector

Introduction to the Quaternary Pump
Optional Interface Boards

LAN Board
The HP LAN board is actually an HP JetDirect card, which is a network
interface card used in HP printers.
NOTE

One board is required per Agilent 1100 stack. If the Agilent 1100 stack
has a DAD, then the DAD MUST be the module used for LAN board
installation. If no DAD is present a pump should be used for the LAN
board installation.

NOTE

The LAN board can only be used together with:
A DAD/MWD/VWD/Pump/ALS with main board version G13XX-66520 and
greater. An FLD/RID with main board version G13XX-66500 and greater.
a DOS-ChemStation software revision A.06.01 or above.
The following boards can be used with the Agilent 1100 modules.

Table 30

LAN Boards
Agilent Order Number Supported networks

NOTE

J4106A

Ethernet/802.3, RJ-45 (10Base-T)

J4105A

Token Ring/802.5, DB9, RJ-45 (10Base-T)

J4100A

Fast Ethernet, Ethernet/802.3, RJ-45 (10/100Base-TX) + BNC
(10Base2)

Minimum firmware of the LAN boards is A.05.05.
Recommended Cables
For point to point connection (not using a network hub) use a twisted pair
cross over LAN cable (P/N 5183-4649, 10 feet long).
For standard network connections using a hub use category 5 UTP cables,
(P/N G1530-61480, 8 m long).

217

Introduction to the Quaternary Pump
Agilent 1100 Series Interfaces

Agilent 1100 Series Interfaces
The Agilent 1100 Series modules provide the following interfaces:

Table 31

Agilent 1100 Series Interfaces

Interface Type

Pumps

Autosampler

DA Detector
MW Detector
FL Detector

CAN

Yes

GPIB

Yes

RS-232C

Yes

APG Remote

Yes

Analog

Yes

2×

1×

Yes*

Interface board

Yes

VW Detector
RI Detector

Thermostatted
Column
Vacuum
Compartment Degasser

The vacuum degasser will have a special connector for specific use. For details, see the degasser manual.

• The CAN connectors serve as the interface between the Agilent 1100
Series modules themselves,
• the GPIB connector serves as the interface between an Agilent1100
module and the Agilent ChemStation,
• RS-232C provides an interface to a computer,
• the APG remote connector serves as the interface between the
Agilent 1100 and other Agilent (APG remote compatible) products,
• the analog output connector(s) provide an analog signal output,
• the interface board slot (not common to all modules) provides specific
interfacing needs (external contacts, BCD, LAN and so on).
For identification and location of the connectors see Figure 3 on page 22.

218

Introduction to the Quaternary Pump
Agilent 1100 Series Interfaces

WAR NI N G

Never use cables other than the ones supplied by Agilent Technologies
to ensure proper functionality and compliance with safety or EMC
regulations, see “Cable Overview” on page 181.

Analog Signal Output
The analog signal output can be distributed to a recording device. For details
refer to the description of the main board of the module.

GPIB Interface
The GPIB connector is used to connect the module with a computer. The
address and control switches next to the GPIB connector determine the
GPIB address of your module. The switches are preset to a default address
and recognized by the operating software from Agilent Technologies.

Table 32

Default GPIB Adresses
G131x Pumps

DAD (HP 1040)

G1313 Autosampler

FLD (HP 1046)

ECD (Agilent 1049)

G1327 Thermostatted Sampler 28
G1316 Column Compartment

G1314 VWD

Pumps (HP 1050)

G1315/G1365 DAD/MWD

Autosampler (HP 1050) 18

G1321 FLD

VWD (HP 1050)

G1362 RID

DAD (HP 1050)

MWD (HP 1050)

Agilent 8453A

CAN Interface
The CAN is an inter module communication interface. It is a 2 wire serial bus
system supporting high speed data communication and real-time
requirements.

219

Introduction to the Quaternary Pump
Agilent 1100 Series Interfaces

APG Remote Interface
The APG Remote connector may be used in combination with other
analytical instruments from Agilent Technologies if you want to use features
as common shut down, prepare, and so on.
Remote control allows easy connection between single instruments or
systems to ensure coordinated analysis with simple coupling requirements.
The subminiature D connector is used. The quaternary pump provides one
remote connector which is inputs/outputs (wired-or technique).
To provide maximum safety within a distributed analysis system, one line is
dedicated to SHUT DOWN the system’s critical parts in case any module
detects a serious problem. To detect whether all participating modules are
switched on or properly powered, one line is defined to summarize the
POWER ON state of all connected modules. Control of analysis is maintained
by signal readiness READY for next analysis, followed by START of run and
optional STOP of run triggered on the respective lines. In addition PREPARE
and START REQUEST may be issued. The signal level are defined as:
• standard TTL levels (low = 0.0 - 0.8 V, high = +2.0 - 5.0 V)
• fan-out is 10,
• input load is 1.7 kOhm against + 5 V, and
• output are open collector type, inputs/outputs (wired-or technique).

RS-232C
The RS-232C connector is used to control the instrument from a computer
through RS-232C connection, using the appropriate software . This connector
can be configured with the configuration switch module next to the GPIB

220

Introduction to the Quaternary Pump
Agilent 1100 Series Interfaces

Table 33

APG Remote Signal Distribution
Pin

Signal

Description

DGND

Digital ground

PREPARE

(L) Request to prepare for analysis (for example, detector lamp
on). Receiver is any module performing preanalysis activities.

START

(L) Request to start run / timetable. Receiver is any module
performing run-time controlled activities.

SHUT DOWN

(L) System has serious problem (for example, leak: stops pump).
Receiver is any module that needs to be shutdown to avoid a
safety risk.

Not used

POWER ON

(H) All modules connected to system are switched on. Receiver is
any module relying on operation of others.

READY

(H) System is ready for next analysis. Receiver is any sequence
controller.

STOP

(L) Request to reach system ready state as soon as possible (for
example, stop run, abort or finish and stop injection). Receiver is
any module performing run-time controlled activities.

START REQUEST (L) Request to start injection cycle. Receiver is the autosampler.

221

Introduction to the Quaternary Pump
Agilent 1100 Series Interfaces

connector. The RS-232C is designed as DCE (data communication
equipment) with a 9-pin male SUB-D type connector. The pins are defined as:

Table 34

RS-232C Connection Table
Pin

Direction

Function

DCD

RxD

Out

TxD

Out

DTR

Figure 49

Ground

DSR

Out

RTS

CTS

RS-232 Cable

Instrument
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
DB9
Male

222

PC
1
2
3
4
5
6
7
8
9
DB9
Female

1
2
3
4
5
6
7
8
9
DB9
Female

DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
DB9
Male

Introduction to the Quaternary Pump
Setting the 8-bit Configuration Switch

Setting the 8-bit Configuration Switch
The 8-bit configuration switch is located next to the GPIB connector. Switch
settings provide configuration parameters for GPIB address, serial
communication protocol and instrument specific initialization procedures.
Figure 50

8-bit Configuration Switch

1
factory setting is shown
for quaternary pump

Table 35

8-bit Configuration Switch
Mode Select 1

GPIB

RS-232C

Baudrate

Reserved

TEST/BOOT

RSVD

GPIB Address
Data Bits Parity

SYS

RSVD

Switches 1 and 2 define which set of parameters (for example, for GPIB,
RS-232C, and so on) will be changed. Once the change has been completed,
the instrument must be powered up again in order to store the values in the
non-volatile memory.

223

Introduction to the Quaternary Pump
Setting the 8-bit Configuration Switch

In the non-volatile memory the parameters are kept, regardless of whether
you turn the instrument off and on again. They will be kept until the same set
of parameters is subsequently changed and power is reset. All other
previously stored configuration settings will still remain in the non-volatile
memory.
In this way you can store more than one set of parameters using the same
8-bit configuration switch twice,, for example, for both GPIB and RS-232C.

GPIB Default Addresses
If you just want to change the GPIB address and need a detailed procedure,
refer to the Installing Your ChemStation System handbook. Default GPIB
address is set to the following addresses::

Table 36

Default Addresses for Agilent Series 1100 Modules
Module

Address

Binary Address

Pump

00010110

FLD

00010111

VWD

00011000

Agilent 8453A

00011101

DAD/MWD

00011010

Column compartment

00011011

Autosampler

00011100

RID

00011101

where 0 means that the switch is down and 1 means that the switch is up.

Communication Settings for RS-232C Communication
The communication protocol used in the instrument supports only hardware
handshake (CTS/RTR).

224

Introduction to the Quaternary Pump
Setting the 8-bit Configuration Switch

Switches 1 in down and 2 in up position define that the RS-232C parameters
will be changed. Once the change has been completed, the instrument must
be powered up again in order to store the values in the non-volatile memory.

Table 37

Communication Settings for RS-232C Communication
Mode Select 1

RS-232

Baudrate

Data Bits Parity

Use the following tables for selecting the setting which you want to use for
RS-232C communication. The number 0 means that the switch is down and 1
means that the switch is up.

Table 38

Baudrate Settings
Switches

Table 39

Baud Rate

0
0

Switches

Baud Rate

9600 (default)

9600

1200

14400

2400

19200

4800

38400

Data Bit Settings
Switch 6

Data Word Size

7 Bit Communication

8 Bit Communication

One start bit and one stop bit are always used (not selectable).
Per default, the module will turn into 19200 baud, 8 data bit with no parity.

225

Introduction to the Quaternary Pump
Setting the 8-bit Configuration Switch

Table 40

Parity Settings
Switches

Parity

No Parity

Odd Parity

Even Parity

Forced Cold-Start Settings
Switches 1 and 2 do not force storage of this set of parameters in non-volatile
memory. Returning the switches 1 and 2 to other positions (other than being
both up) will allow for normal operation.
CA UT IO N

A forced cold start erases all methods and data stored in non-volatile memory.
Exceptions are diagnose and repair logbooks will not be erased.
If you use the following switch settings and power the instrument up again, a
forced cold start has been completed.

Table 41

Forced Cold Start Settings
Mode Select 1

TEST/BOOT

To return to normal operation, set switches back to your GPIB or RS 232C
configuration settings.

Stay Resident Settings
Firmware update procedures may require this mode in case of firmware
loading errors.

226

Introduction to the Quaternary Pump
Setting the 8-bit Configuration Switch

Switches 1 and 2 do not force storage of this set of parameters in non-volatile
memory. Returning the switches 1 and 2 to other positions (other than being
both up) will allow for normal operation.
If you use the following switch settings and power the instrument up again,
the instrument firmware stays in the resident part, that is, it is not operable as
a quaternary pump. It only uses basic functions of the operating system, for
example, for communication, and so on.

Table 42

Stay Resident Settings
Mode Select 1

TEST/BOOT

To return to normal operation, set switches back to your GPIB or RS 232C
configuration settings.

227

Introduction to the Quaternary Pump
The Main Power Supply Assembly

The Main Power Supply Assembly
The main power supply comprises a closed assembly (no component-level
repair possibility).
The power supply provides all DC voltages used in the quaternary pump. The
line voltage can vary in a range from 100 – 120 or 220 – 240 volts AC ± 10 %
and needs no manual setting.
Figure 51

Main Power Supply (MPS) Block Diagram
M P S
+ 3 6 V
s u p p ly

lin e
v o lta g e

+ 2 4 V
s u p p ly

p rim a ry
c irc u its

se n se

+ 5 V
s w itc h in g
re g u la to r

lin e a r v o lta g e
re g u la to rs

WAR NI N G

+ 3 6 V (n o t u s e d )

+ 2 4 V / 4 .5 A

+ 5 V / 3 A

+ 1 5 V / .3 A
-1 5 V / .3 A

To disconnect the instrument from line, unplug the power cord. The
power supply still uses some power, even if the power switch on the
front panel is turned off.
No accessible hardware fuse is needed because the main power supply is
safe against any short circuits or overload conditions on the output lines.

228

Introduction to the Quaternary Pump
The Main Power Supply Assembly

When overload conditions occur, the power supply turns off all output
voltages. Turning the line power off and on again resets the power supply to
normal operation if the cause of the overload condition has been removed.
An over-temperature sensor in the main power supply is used to turn off
output voltages if the temperature exceeds the acceptable limit (for example,
if the cooling fan of the quaternary pump fails). To reset the main power
supply to normal operating conditions, turn the quaternary pump off, wait
until it is approximately at ambient temperature and turn the quaternary
pump on again.
The following table gives the specifications of the main power supply.

Table 43

Main Power Supply Specifications
Maximum power

130 W

Continuous output

Line Input

100 – 120 or 220 – 240 volts AC
± 10 %, line frequency of 50/60 Hz

Wide ranging

Output 1

+ 24 V / 4.5 A (maximum)

Total power consumption of +24V and

Output 2

+ 36 V / 2.5 A (maximum)

+36V must not exceed 107 W

Output 3

+5V/3A

Output 4

+ 15 V / 0.3 A

Output 5

- 15 V / 0.3 A

229

Introduction to the Quaternary Pump
The Main Power Supply Assembly

230

Control Module Screens
for the Quaternary
Pump

Control Module Screens for the Quaternary Pump

This chapter is intended to introduce an operator to the screens available for
operation of the Agilent 1100 quaternary pump with the Agilent 1100 control
module.
Please use the manual of the control module for further detailed reference.

Major keys on the Agilent 1100 Control Module
ESC

Return to previous screen and scroll through top layer views
(Analysis, Settings)

Open context sensitive menus

Information/help

Enter

Store changed parameters or execute the choice from a pull-down
menu

Done

(If available) Activate settings of current screen

On/Off

Switch on pump

Start

Start a run

Plot

View the pressure readings

Views

Change between view of analysis - status - system screens

NOTE

The screens shown on the next pages are based on the following firmware
revisions:
Control Module firmware revision B.01.01 (G1323B).
LC Module firmware revision 3.8x

NOTE

In case the control module’s display seems to be frozen (hang-up due to a
communication problem on the CAN bus, unplug the control module from the
LC module and reconnect.

232

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Screens available from the Analysis screen
The Analysis screen

This is the wake-up screen, if the Agilent 1100 quaternary pump is the only
configured Agilent 1100 module. It is used to enter the most common pump
method parameters.

The m-key allows access to the context sensitive menu. Date&Time allows
you to change time settings. Print Screen gives acces to the print
configuration screen. About tells you the current firmware revision and the
serial# of your control module. Setup view leads you to add sections for
additional Agilent 1100 modules. Restart re-boots the control module.

233

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Setup View

In the Setup view, modules can be added or removed to the view.

Here, e.g. the autosampler and thermostatted column compartement
parameters are shown on the display as well. The number of parameters on
the display is restricted as additional modules are added. A maximum of 4
modules is shown automatically. If more modules are connected to the
system, you have to choose 4 of them in Setup view.

234

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Pump ON/OFF

From the Analysis screen use the F7 key to proceed to the turn on screen.
Press F8 (On) once to turn on the pump. If more than one module is
available, select the quaternary pump from the pop-up menu.

Settings

With the Settings key you open a pull-down menu where you can select the
quaternary pump module.

235

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Settings

Within the Settings you can change the pump parameters. You have access
to a different set of parameters available through the F1-5 keys. F7 key resets
the pump to default values. F8 opens a window to turn on the pump.

Use the m-key for the context sensitive menu. The Status command pulls up
a monitor screen displaying signals and spectra as programmed. Reset will
load the pump default parameters.

Use F1-key (More). You can enter special pump setpoints.

236

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Settings - Timetable

With the F2 key (Timetable) you can list the timetable for the pump. Press
F7 key (Insert) to add entries or F6 key (Delete) to remove entries.

Use the F6 key (Done) to view the entered lines of the timetable.

Use the m-key for the context sensitive menu. It gives you additional tools for
the timetable.

237

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Settings - Pressure

With the F3 key (Pressure) you can change the settings for the pressure
limits.

Settings - Bottle
Fillings

With the F4 key (Bottle Fillings) you can adjust the settings for the bottle
fillings to their current state.

Settings - Runtimes

With the F5 key (Runtimes) you can change the stop time and the post-run
time.

238

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Analog -Status

Press F5 key (Views) and select Status.

Status

This is an example if an Agilent 1100 pump is configured standalone.
Information on the actual flow rate , mobile phase composition, pressure and
%-ripple, elapsed run time and the pressure plot are shown. Press key F8
(Start) to start a run, key F7 (Rescale) to maximize the signal.

Signal plot

Press F6 key (Plot) to enter the plot screen (available also from the Analysis
and System screen). Here you can observe the online signal(s). To add
additional online signals (maximum 3), press F6 key (Select). If more than
one signal is configured, use the 1-2-3 numeric keys to switch between the
signals.

239

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Press F6 key (Select). Here you can add additional online signals (maximum
are 3). Additional signals could also be chromatograms or temperature
signals from other modules. Use the Right/Left arrows to switch between
Available and Selected Signals. Use the F8 key (Move) to enter available
signals into the box for selected signals or vice versa. Press Done to activate
the changed settings and to return to the Plot screen.

Method screens

On the Analysis screen use the F3 key (Method) to view the parameters in a
method and F8 key (Save As) to save the method in the module(s). The
PC-Card key is only active when a PCMCIA card is inserted in the control
module (has to be inserted even before powercycling).

240

Control Module Screens for the Quaternary Pump
Screens available from the Analysis screen

Use F2 key (PC-Card) to save a method on a PCMCIA card. Use the
Right/Left arrows to switch between PC-Card and Instrument window. Use
the UP/Down arrows to select the method. Use the F7/F8 keys (Copy) to
enter available signals into the box for selected signals or vice versa.

241

Control Module Screens for the Quaternary Pump
Screens available from the System screen

Screens available from the System screen
System screen

Use the Esc key to receive Views on the F5 key. Choose System from the
pull-down menu. This screen shows the last activities in the system.

System - Control

Use the F1 key (Control) to select the quaternary pump. Here you receive
information about the not-ready conditions if needed. F2 key (Reset) does a
re-initialization of the pump.

242

Control Module Screens for the Quaternary Pump
Screens available from the System screen

System Configuration

On the System screen use the F2 key (Configure) to select the pump. Use
the F1 key (Interfaces) to access the interface settings (if required).

Press F4 (Bottle fillings) to adjust bottle fillings to the currrent state.

243

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

Screens available from the Records screen
Records screen

Use the Esc key to receive Views on the F5 key. Choose System from the
pull-down menu. Use the F4 key (Records) to select the pump. Errors are
reported either into the System Log (F2) or Error Log (F3).

System / Error Log

Use the F2 key (System Log) or F3 key (Error Log) to look for errors.

244

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

Info Log

Use the m-key to receive a pop-up menu, Select Info Log. A list of the last
events are listed. For troubleshooting reasons they can be printed or saved to
a file on the PCMCIA card (using the m-key for the context sensitive menu).

EMF (Early
Maintenance
Feedback)

Use the F1 key (EMF) to set EMF parameters. Choose menu item 1 (Setup
limits) to select the amount of pumped solvent or seal wear, when you want
to receive a warning for exceeded limits. Press F7 (Reset) to reset the
counters after exchanging parts that are subject to wear.

245

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

If a set limit has been exceeded, a message box will pop up. This will not stop
a sequence or run (information only to plan maintenance activities). If you
press Reset, the limits will be removed. Ignore will continue to keep the
EMF flag set.

Firmware Update

Use the Esc key to receive Views on the F5 key. Choose System from the
pull-down menu. Use the F3 key (Records) to select the pump. Use the F5
key (FW Update) to enter the Update section. If you want to update the
resident firmware (together with specific main firmware revisions), select
the file from the PCMCIA card (RESnnnn.DLB) and press execute. If you
want to update the main firmware, press F7 key (Transfer) to turn the
module into the resident mode (LED on module should blink yellow).

246

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

Use the Esc key to receive Views on the F5 key. Choose System from the
pull-down menu. Use the F3 key (Records) to select the Generic module. In
this screen the resident firmware revision is shown.

Use the F5 key (FW Update) to enter the Update section. Select the a file
from the PCMCIA card (1311nnnn.DLB) and press execute. When the update
has finished, press F7 key (Transfer) to return the module into the normal
mode (LED on module should stay yellow).

If you have not saved your methods, please do it before continuing.
Otherwise they will be overwritten during the update process.

247

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

Changing the serial
number

In case the serial number of the module has to be added, use the m-key to
open the menu Enter Serial#. The serial number becomes active after
restart of the module.

Maintenance
activities

On the Records screen use the F4 key (Maint log) to view and edit the
maintenance logbook.

248

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

Use the F7 key (Add) to add new maintenance activities. If an activity is not
listed, you can type the activity into the line “Add” using the control modules
key pad.

Changting the Type

In order to change the type of the module (this may be necessary after an
exchange of the mainbord) press ’m.m’ in the Test-screen and select
Command.

249

Control Module Screens for the Quaternary Pump
Screens available from the Records screen

Enter ’TYPE G1311A’ in the Instr-line in order to configure the module as a
quaternary pump.

Schematics

Select Schematics after pressing ’m.m’ on the Test-screen in order to get a
schematic overview of the quaternary pump.

250

Control Module Screens for the Quaternary Pump
Diagnostics and Tests

Diagnostics and Tests
Tests screen

Use the Esc key to receive Views on the F5 key. Choose System from the
pull-down menu. Use the F3 key (Tests) to select the pump. Two tests are
available to test the Agilent 1100 pumps.

Leak Test

Press F1 (Leak Test) on the Test screen to perform a leak test. Several steps
like purging the system, setting up Isopropanol as solvent on channel D and
blocking the purge valve outlet with a blank nut have to be performed before
operating the leak test. For details use the ’i’-key to achieve conext sensitive
help, follow the instructions on the screen and refer to “Running the Leak
Test” on page 90. For evaluating the pressure test refer to “Evaluating the
Results” on page 92.

251

Control Module Screens for the Quaternary Pump
Diagnostics and Tests

Pressure Test

Use the F2 key (Pressure Test) to perform a pressure test of the system.
Several steps like purging the system, setting up Isopropanol as solvent on
channel D and blocking the column outlet with a blank nut have to be
performed before operating the pressure test. For details use the ’i’-key to
achieve context sensitive help, follow the instructions on the screen and
refer to “Running the Pressure Test” on page 84. For evaluating the pressure
test refer to “Evaluating the Results” on page 86.

252

Specifications
Performance specifications of the quaternary
pump

Specifications
Performance Specifications

Performance Specifications

Table 44

Performance Specification Agilent 1100 Series Quaternary Pump
Type

Specification

Hydraulic system

Dual plunger in series pump with proprietary servo-controlled variable
stroke drive, floating plungers and active inlet valve

Setable flow range

0.001 – 10 ml/min, in 0.001 ml/min increments

Flow range

0.2 – 10.0 ml/min

Flow precision

< 0.3 % RSD (typically 0.15 %), based on retention time, at 1 ml/min

Pressure

Operating range 0 – 40 MPa (0 – 400 bar, 0 – 5880 psi) up to 5 ml/min
Operating range 0 – 20 MPa (0 – 200 bar, 0 – 2950 psi) up to 10 ml/min

Pressure pulsation

< 2 %amplitude (typically < 1 %), at 1 ml/min isopropanol,
at all pressures > 1 MPa (10bar)

Compressibility
compensation

User-selectable, based on mobile phase compressibility

Recommended pH range

1.0 – 12.5, solvents with pH > 2.3 should not contain acids which attack
stainless steel

Gradient formation

Low pressure quaternary mixing/gradient capability using
proprietary high-speed proportioning valve
Delay volume 800 – 1100 µl, dependent on back pressure

Composition Range

0 – 95 % or 5 – 100 %, user selectable

Composition Precision < 0.2 % SD, at 0.2 and 1 ml/min
Control and data
evaluation

254

Agilent ChemStation for LC

Specifications
Performance Specifications

Table 44

Performance Specification Agilent 1100 Series Quaternary Pump
Analog output

For pressure monitoring, 2 mV/bar, one output

Communications

Controller-area network (CAN), GPIB, RS-232C, APG Remote: ready, start,
stop and shut-down signals, LAN optional

Safety and maintenance

Extensive diagnostics, error detection and display (through control module
and Agilent ChemStation), leak detection, safe leak handling, leak output
signal for shutdown of pumping system. Low voltages in major
maintenance areas.

GLP features

Early maintenance feedback (EMF) for continuous tracking of instrument
usage in terms of seal wear and volume of pumped mobile phase with
user-settable limits and feedback messages. Electronic records of
maintenance and errors.

Housing

All materials recyclable.

255

Specifications
Performance Specifications

256

Warranty Statement

Warranty Statement
All Chemical Analysis Products
Agilent Technologies warrants its chemical analysis products against defects
in materials and workmanship. For details of the warranty period in your
country, call Agilent. During the warranty period, Agilent will, at its option,
repair or replace products which prove to be defective. Products that are
installed by Agilent are warranted from the installation date, all others from
the ship date.
If buyer schedules or delays installation more than 30 days after delivery,
then warranty period starts on 31st day from date of shipment (60 and
61 days, respectively for products shipped internationally).
Agilent warrants that its software and firmware designed by Agilent for use
with a CPU will execute its programming instructions when properly
installed on that CPU. Agilent does not warrant that the operation of the
CPU, or software, or firmware will be uninterrupted or error-free.

Limitation of Warranty
Onsite warranty services are provided at the initial installation point.
Installation and onsite warranty services are available only in Agilent service
travel areas, and only in the country of initial purchase unless buyer pays
Agilent international prices for the product and services. Warranties requiring
return to Agilent are not limited to the country of purchase.
For installation and warranty services outside of Agilent’s service travel area,
Agilent will provide a quotation for the applicable additional services.
If products eligible for installation and onsite warranty services are moved
from the initial installation point, the warranty will remain in effect only if the
customer purchases additional inspection or installation services, at the new
site.
The foregoing warranty shall not apply to defects resulting from:
1 improper or inadequate maintenance, adjustment, calibration, or
operation by buyer,
2 buyer-supplied software, hardware, interfacing or consumables,
3 unauthorized modification or misuse,
257

Warranty Statement

4 operation outside of the environmental and electrical specifications for
the product,
5 improper site preparation and maintenance, or
6 customer induced contamination or leaks.
THE WARRANTY SET FORTH IS EXCLUSIVE AND NO OTHER WARRANTY,
WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED. AGILENT
SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Limitation of Remedies and Liability
THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND
EXCLUSIVE REMEDIES. IN NO EVENT SHALL AGILENT BE LIABLE FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES (INCLUDING LOSS OF PROFITS) WHETHER BASED ON
CONTRACT, TORT OR ANY OTHER LEGAL THEORY.

Responsibilities of the Customer
The customer shall provide:
1 access to the products during the specified periods of coverage to perform
maintenance,
2 adequate working space around the products for servicing by Agilent
personnel,
3 access to and use of all information and facilities determined necessary by
Agilent to service and/or maintain the products (insofar as these items may
contain proprietary or classified information, the customer shall assume
full responsiblity for safeguarding and protection from wrongful use),
4 routine operator maintenance and cleaning as specified in the Agilent
operating and service manuals, and
5 consumables such as paper, disks, magnetic tapes, ribbons, inks, pens,
gases, solvents, columns, syringes, lamps, septa, needles, filters, frits,
fuses, seals, detector flow cell windows, and so on.

258

Warranty Statement

Responsibilities of Agilent Technologies
Agilent Technologies will provide warranty services as described in Table 45.

Table 45

Warranty Services
Services During Warranty*

Warranty Period**

Type

Agilent 1100 Series of Modules

1 Year

Onsite

LC supplies and accessories

90 Days

Onsite

Columns and Consumables***

90 Days

Return to Agilent

Gas Discharge and Tungsten Lamps

30 Days

Return to Agilent

Repairs performed on-site by Agilent****

90 Days

Onsite

This warranty may be modified in accordance with the law of your country. Please consult your local Agilent
office for the period of the warranty, for shipping instructions and for the applicable wording of the local
warranty.
** Warranty services are included as specified for Analytical products and options purchased concurrently
provided customer is located within a Agilent defined travel area. Agilent warranty service provides for 8 a.m.
to 5 p.m. on-site coverage Monday through Friday, exclusive of Agilent holidays.
*** Columns and Consumables are warranted to be free from defects for a period of 90 days after shipment and
will be replaced on a return-to-Agilent basis if unused.
****
Agilent repair warranty is limited to only the item repaired or replaced.

259

Safety Information

Safety Information
The following general safety precautions must be observed during all phases
of operation, service, and repair of this instrument. Failure to comply with
these precautions or with specific warnings elsewhere in this manual violates
safety standards of design, manufacture, and intended use of the instrument.
Agilent Technologies assumes no liability for the customer’s failure to comply
with these requirements.

General
This is a Safety Class I instrument (provided with terminal for protective
earthing) and has been manufactured and tested according to international
safety standards.

Operation
Before applying power, comply with the installation section. Additionally the
following must be observed.
Do not remove instrument covers when operating. Before the instrument is
switched on, all protective earth terminals, extension cords,
auto-transformers, and devices connected to it must be connected to a
protective earth via a ground socket. Any interruption of the protective earth
grounding will cause a potential shock hazard that could result in serious
personal injury. Whenever it is likely that the protection has been impaired,
the instrument must be made inoperative and be secured against any
intended operation.
Make sure that only fuses with the required rated current and of the specified
type (normal blow, time delay, and so on) are used for replacement. The use
of repaired fuses and the short-circuiting of fuseholders must be avoided.
Some adjustments described in the manual, are made with power supplied to
the instrument, and protective covers removed. Energy available at many
points may, if contacted, result in personal injury.
Any adjustment, maintenance, and repair of the opened instrument under
voltage should be avoided as much as possible. When inevitable, this should
be carried out by a skilled person who is aware of the hazard involved. Do
not attempt internal service or adjustment unless another person, capable of

260

Safety Information

rendering first aid and resuscitation, is present. Do not replace components
with power cable connected.
Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.
Do not install substitute parts or make any unauthorized modification to the
instrument.
Capacitors inside the instrument may still be charged, even though the
instrument has been disconnected from its source of supply. Dangerous
voltages, capable of causing serious personal injury, are present in this
instrument. Use extreme caution when handling, testing and adjusting.
When working with solvents please observe appropriate safety procedures
(e.g. goggles, safety gloves and protective clothing) as described in the
material handling and safety data sheet by the solvent vendor, especially
when toxic or hazardous solvents are used.

Safety Symbols
Table 46 shows safety symbols used on the instrument and in the manuals.

Table 46

Safety Symbols
Symbol

Description
The apparatus is marked with this symbol when the user should refer to the
instruction manual in order to protect the apparatus against damage.
Indicates dangerous voltages.

Indicates a protected ground terminal.

261

Safety Information

WAR NI N G

A warning alerts you to situations that could cause physical injury or
damage to the equipment. Do not proceed beyond a warning until you
have fully understood and met the indicated conditions.

CA UT IO N

A caution alerts you to situations that could cause a possible loss of data. Do
not proceed beyond a caution until you have fully understood and met the
indicated conditions.

262

Lithium Batteries Information

Lithium Batteries Information
WAR NI N G

Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended by the equipment
manufacturer. Lithium batteries may not be disposed-off into the
domestic waste.
Transportation of discharged Lithium batteries through carriers
regulated by IATA/ICAO, ADR, RID, IMDG is not allowed. Discharged
Lithium batteries shall be disposed off locally according to national
waste disposal regulations for batteries.

WAR NI N G

Lithiumbatteri - Eksplosionsfare ved fejlagtic handtering. Udskiftning
ma kun ske med batteri af samme fabrikat og type. Lever det brugte
batteri tilbage til leverandoren.

WAR NI N G

Lithiumbatteri - Eksplosionsfare. Ved udskiftning benyttes kun
batteri som anbefalt av apparatfabrikanten. Brukt batteri returneres
appararleverandoren.

NOTE

Bij dit apparaat zijn batterijen geleverd. Wanneer deze leeg zijn, moet u ze niet
weggooien maar inleveren als KCA.

263

Radio Interference

Radio Interference
Never use cables other than the ones supplied by Agilent
Technologies to ensure proper functionality and compliance with
safety or EMC regulations.
Test and Measurement
If test and measurement equipment is operated with equipment unscreened
cables and/or used for measurements on open set-ups, the user has to assure
that under operating conditions the radio interference limits are still met
within the premises.

Sound Emission
Manufacturer’s Declaration
This statement is provided to comply with the requirements of the German
Sound Emission Directive of 18 January 1991.
This product has a sound pressure emission (at the operator position)
< 70 dB.
• Sound Pressure Lp < 70 dB (A)
• At Operator Position
• Normal Operation
• According to ISO 7779:1988/EN 27779/1991 (Type Test)

264

Solvent Information

Solvent Information
Observe the following recommendations on the use of solvents.

Flow Cell
Avoid the use of alkaline solutions (pH > 11) which can attack quartz and
thus impair the optical properties of the flow cell.

Solvents
Always filter solvents, small particles can permanently block the capillaries.
Avoid the use of the following steel-corrosive solvents:
• Solutions of alkali halides and their respective acids (for example, lithium
iodide, potassium chloride, and so on).
• High concentrations of inorganic acids like nitric acid, sulfuric acid
especially at higher temperatures (replace, if your chromatography
method allows, by phosphoric acid or phosphate buffer which are less
corrosive against stainless steel).
• Halogenated solvents or mixtures which form radicals and/or acids, for
example:
2CHCl3 + O2 → 2COCl2 + 2HCl
This reaction, in which stainless steel probably acts as a catalyst, occurs
quickly with dried chloroform if the drying process removes the
stabilizing alcohol.
• Chromatographic grade ethers, which can contain peroxides (for example,
THF, dioxane, di-isopropylether) such ethers should be filtered through
dry aluminium oxide which adsorbs the peroxides.
• Solutions of organic acids (acetic acid, formic acid, and so on) in organic
solvents. For example, a 1-% solution of acetic acid in methanol will attack
steel.
• Solutions containing strong complexing agents (for example, EDTA,
ethylene diamine tetra-acetic acid).
• Mixtures of carbon tetrachloride with 2-propanol or THF.

265

Agilent Technologies on Internet

Agilent Technologies on Internet
For the latest information on products and services visit our worldwide web
site on the Internet at:
http://www.agilent.com/go/chem
Select “Products” - “Chemical Analysis”
It will also provide the latest firmware of the Agilent 1100 series modules for
download.

266

Index

A
accessory kit, 18
accessory kit, degasser, 19
active inlet valve, 103, 178
active inlet valve drive, 210
air flow, 141
algae growth, 35
alternative seal material, 39
ambient non-operating temperature, 16
ambient operating temperature, 16
analog output, 255
APG remote connector, 23, 220
ASIC - application-specific integrated
circuit, 210
assembling the main cover, 155
AUTO mode, 203
AUX output, 23

compensation sensor short, 56
composition precision, 254
composition range, 254
compressibility compensation, 40, 202,
254
condensation, 15
connecting tubes, 19
connections, flow, 25
continuous seal wash, 38, 198
control module, 162
EMF, 245
firmware update, 246
serial number change of MWD, 248
tests, 251
counter, EMF, 207
counter, seal wear, 207
cover parts, 167

B
ball-screw drive, 200
battery, 211, 263
baudrate setting, 225
BCD board, 126, 216
bench space, 15
blank nut, 84
blockage, 69
board connectors, 132
bottle, 17
bottle head assembly, 17, 165
buffer, 198
buffer application, 32
buffer solution, 123, 198

D
damaged parts, 17
damper, 138
damping unit, 138
data bit settings, 225
default address settings, 224
degasser, 17
delay volume, 20, 202
delivery checklist, 17
description, leak test, 88
description, pressure test, 82
dimensions, 16
disassembling the pump head assembly, 110
dual piston in-series design, 199

C
cable
CAN, 18, 23
GPIB, 23
interface, 22
power, 17
remote, 18
signal, 18
CAN cable, 23
CAN interface, 219
capillary, pump to injection device, 18
changing solvents, 28
ChemStation, 23
cleaning the pump, 99
compensation sensor open, 55

E
early maintenance feedback (EMF),
206
electrical connections
descriptions of, 204
electronic fuses, 211
electrostatic discharge (ESD), 98
EMF
on control module, 245
EMF counters, 207
EMF limits, 208
encoder missing, 70
environment, 14, 15
error

zero solvent counter, 60
error condition, 46
error message
wait timeout, 81
error messages, 44, 47
compensation sensor open, 55
compensation sensor short, 56
encoder missing, 70
fan failed, 57
ignition without cover, 58
index adjustment, 77
index limit, 76
index missing, 78
initialization failed, 80
inlet valve fuse, 67
inlet-valve missing, 71
leak, 52
leak senso open, 53
leak sensor short, 54
missing pressure reading, 64
motor drive power, 69
pressure above upper limit, 61
pressure below lower limit, 62
pump configuration, 65
pump head missing, 75
selection valve failed, 63
servo restart failed, 74
shut-down, 49
stroke length, 79
synchronization lost, 50
temperature limit exceeded, 73
temperature out of range, 72
timeout, 48
errror
unknown error 2055, 60
ESD strap, 100
ESD wrist strap, 18
exchanging
active inlet valve, 102, 103
damper, 138
fan, 141
interface board, 126
internal parts, 98, 127
leak sensor, 152
LPM Board, 131
multi channel gradient valve
(MCGV), 123
outlet ball valve, 102, 106

267

Index

hydraulic path, 166
hydraulic system, 254

pistons, 102, 115
power supply, 147
pump drive, 143
pump seals, 102, 112
purge valve, 102, 108
purge valve frit, 102, 108
status light pipe, 154
wash seals, 102, 116
F
fan, 141
fan drive, 211
fan failed, 57
fan out, 220
features
GLP, 255
instrument layout, 206
safety and maintenace, 255
firmware
description, 214
main system, 214
resident system, 214
firmware update with control module,
246
flow connections, 25
flow precision, 254
flow range, 254
foam, 156
foam parts, 169
frequency range, 16
front of pump, 22
fuse, electronic, 211
G
GPIB
Default Addresses, 224
GPIB cable, 23
GPIB interface, 219
gradient formation, 254
gradient valve, 123
gradient valve drive, 210
H
hex key set, 18
hexagonal key, 4 mm, 110, 112, 115,
116, 119, 121, 143
hints for successful use, 32
humidity, 16

268

I
index adjustment, 77
index limit, 76
index missing, 78
initialization, 201
initialization failed, 80
inlet-valve fuse, 67
inlet-valve missing, 71
insert tool, 119
installation, pump module, 22
instrument status
indicator, 46
lamp, 46
interface
CAN, 219
GPIB, 219
remote, 220
RS-232C, 220
interface board, 126
interface boards, optional, 216
interface cables, 22
interfaces, 211
internal parts, 127
introduction to the pump, 198
L
laboratory bench, 15
lamp
instrument status, 46
lamp, power supply, 46
lamp, status, 45
LAN cables, 195
LAN interface board, 217
leak, 52
leak converter, 210
leak parts, 171
leak sensor, 152
leak sensor open, 53
leak sensor short, 54
leak test, 44, 88
light pipe, status, 154, 170
line frequency, 16
line voltage, 16
liter counter, 113
liter counters, counter, liter, 207

lithium battery, 263
logbook, 47
low pressure pump main board (LPM),
131
low-pressure gradient, 198
low-pressure pump main board (LPM),
210
LPM board, 131
M
main assemblies, 160
main assemblies, overview, 101
main board, 131
main power supply, 228
main power supply specification, 229
maintenance procedures, 207
materials in contact with mobile phase,
202
message
ignition without cover, 58
missing parts, 17
missing pressure reading, 64
motor drive, 210
motor-drive power, 69
multi channel gradient valve (MCGV),
123
N
non-operating altitude, 16
non-operating temperature, 16
not-ready condition, 46
O
onboard battery, 211
operating Altitude, 16
operating temperature, 16
operational hints, vacuum degasser, 36
operational pressure range, 254
optimum performance, 20
optional interface board, 126, 216
outlet ball valve, 106, 176
outlet capillary, 166
overview, pump, 199
P
parity settings, 226
parts
active inlet valve, 178

Index

bottle head assembly, 165
control module, 162
cover, 167
damaged, 17
foam, 169
hydraulic path, 166
leak handling, 171
light pipes, 170
main assemblies, 160
missing, 17
outlet ball valve, 176
pump head, 172
pump head with seal wash, 174
pump housing and main assemblies,
161, 162
sheet metal kit, 168
solvent cabinet, 164
parts identification
cables - LAN cables, 195
performance specification, 254
pH range, 254
physical specifications, 16
piston, 32, 115, 200
piston chamber, 199
plateaus, leak test, 93
power consideration, 14
power consumption, 16
power cords, 14
power light pipe, 170
power supply, 147
power supply indicator, 46
power supply lamp, 46
power switch, 22
power-input socket, 14
prerun condition, 46
pressure, 199
pressure above upper limit, 61
pressure below lower limit, 62
pressure converter, 210
pressure pulsation, 40, 203, 254
pressure range, 39
pressure sensor readings, 23
pressure test, 44, 82
pressure, operating range, 254
priming
with a pump, 28, 29
with a syringe, 28, 36
with the pump, 36

proportioning valve, high-spped, 199
PTFE frit, 18, 108
PTFE lubricant, 121
pump configuration, 65
pump drive, 143
pump head assembly, 172
pump head missing, 75
pump head with seal wash, 174
pump piston, 32
pump seals, 112
purge valve, 108
purge valve frit, 32, 108
purging the pump, 28
R
rear of pump, 23
reassembling the pump head, 121
recommended pH range, 254
remote
signal distribution, 221
remote interface, 220
removing
pump head assembly, 110
the foam, 128
the top cover, 128
repairs, 102
replacing the foam, 156
replacing the top cover, 156
restart without cover, 59
results, pressure test, 86
RS-232
cable kit to PC, 194
RS-232C communication settings, 224
RS-232C connection table, 222
RS-232C interface, 220
run mode, 46
running the leak test, 90
running the pressure test, 84
S
safety
standards, 16
safety light switch, 127, 130, 156
sapphire piston, 200
screwdriver pozidriv #1, 128, 138, 141,
143, 147, 152, 154, 156
seal
wear-in, 113

seal insert tool, 18
seal wash, 38, 198, 199
seal wash, when to use, 38
seal wear counters, 207
seal, alternative material, 39
seals, 112
security lever, 22, 98
selection valve failed, 63
serial number
entered on control module, 248
serial number change with control
module, 248
servo restart failed, 74
setable flow range, 254
setting
baudrate, 225
data bit, 225
forced cold-start, 226
parity, 226
RS 232C communication, 224
stay resident, 226
setting the address, 224
sheet metal kit, 168
shipping containers, 17
shut-down, 49
simple repairs, 98, 102
site requirements, 14
snap fasteners, 25
solvent bottle, 17
solvent cabinet, 32, 164
solvent filters
checking, 35
cleaning, 35
prevent blocking, 35
solvent information, 34
solvent inlet filters, 32
solvent tubes, 19
solvent tubes, degasser, 17
sonic bath, 106
specification
main power supply, 229
performance, 254
physical, 16
spectrum
range, 238
stack configuration, 20
front view, 20
rear view, 21

269

Index

wrench, 14 mm, 18

status indicator, 44, 45
status lamp, 45
status light pipe, 154, 170
stay resident settings, 226
stroke length, 79
stroke volume, 200, 203
sychronization lost, 50
syringe, 19
syringe adapter, 19, 28

Z
zero solvent counter, 60

T
temperature limit exceeded, 73
temperature out of range, 72
temperature sensor, 52
tests on control module, 251
timeout, 48
top cover, 155, 156
U
unknown error 2055, 60
unpacking the pump, 17
V
vacuum degasser, 17, 25, 32, 198
variable reluctance motor, 200
variable stroke volume, 203
velocity regulator, 18
voltage range, 16
W
wait timeout, 81
wall socket, 14
warranty
responsibility of Agilent Technologies, 259
services, 259
waste tube, 18, 19
wear-in
procedure, 113
weight, 16
wide-ranging capability, 14
wrench 1/4 inch, 84, 90, 106, 108, 110,
123, 138, 143, 147, 152
wrench 14 mm, 103, 106, 108, 131, 147,
152
wrench 5 mm, 131, 147, 152
wrench 7 mm, 131, 147, 152
wrench, 1/4 - 5/16 inch, 18

270

sa
In This Book
This manual contains technical reference
information about the Agilent 1100 Series
quaternary pump. The manual describes
the following:
• installation,
• optimizing performance,
• diagnostics and troubleshooting,
• repairing,
• parts and materials,
• theory of operation, and
• screens of local control module.

Source Exif Data:

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Create Date                     : 1999:12:08 10:25:46
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Title                           : Untitled Document
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Modify Date                     : 1999:12:08 10:28:08+01:00
Page Count                      : 272
Page Mode                       : UseOutlines

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