Dionex GP40 Operator's Manual
GP40 GRADIENT PUMP
OPERATOR’S MANUAL
© Dionex Corporation 1995
Document No. 034856
Revision 03
May 1995
©1995 by Dionex Corporation
All rights reserved worldwide.
Printed i n the Uni ted State s of Ameri ca.
This publication is protected by federal copyright law. No part of this publication
may be copied or distributed, transmitted, transcribed, stored in a retrieval system,
or transmitted into any human or computer language, in any form or by any means,
electron ic, mecha nical, m agnetic, m anual, or othe rwise, or discl osed t o third
parties without the express written permi ssion of Dionex Corporation, 1228 Ti tan
Way, Sunnyvale, California 94088-3603 U.S.A.
DISCLAIM ER OF WARRANTY AND LIMITE D WARRANTY
THIS PUBLICATION IS PROVIDED “AS IS” WITHOUT WARRANTY OF
ANY KIND. DIONEX CORPORATION DOES NOT WARRANT,
GUARANTE E, OR MAKE ANY EXPRESS OR IMPLIED
REPRESENTATIONS REGARDI NG THE USE, OR THE RESULTS OF THE
USE, OF THIS PUBLICATION IN TERMS OF CORRECTNESS,
ACCURACY, RE LIABILITY, CURRENTNESS, OR OTHERWISE.
FURTHER, DIONEX CORPORATION RESERVES TH E RIGHT TO REVISE
THIS PUBLICATION AND TO MAKE CHANGES FROM TIME TO TIME
IN THE CONTENT HEREINOF WITHOUT OBLIGATION OF DIONEX
CORPORATION TO NOTIFY ANY PE RSON OR ORGANIZATION OF
SUCH REVISION OR CHANGES.
TRADEMARKS
DX LAN and SRS a re trademarks of Dionex Corporation.
Tefzel® is a regist ered tr ademar k of E.I . du Po nt de Ne mours & Co.
PRINTING HISTORY
Revisi on 01 , Au gust 1993
Revision 02, September 1993
Revisi on 0 3, M ay 19 95
1 • Introduction
1.1 Ov erview . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 Ab out This Manual . . . . . . . . . . . . . . . . 1-4
1.2. 1 Typefaces . . . . . . . . . . . . . . . . . 1-5
1.2. 2 Safety Messages and Notes . . . . . . . 1-5
1.2.3 Symbols . . . . . . . . . . . . . . . . . . 1-6
1.3 Related Manual s . . . . . . . . . . . . . . . . . . 1-7
2 • Description
2.1 Front Control Panel . . . . . . . . . . . . . . . . 2-4
2.1.1 Control Panel Keypad . . . . . . . . . . 2-5
Contents
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2.1. 2 Displ a y Screens . . . . . . . . . . . . . 2-1 0
2.2 Electronics Ch assis . . . . . . . . . . . . . . . . 2-11
2.3 Mecha nica l Chas sis . . . . . . . . . . . . . . . . 2-1 4
2.4 Inter ior Components . . . . . . . . . . . . . . . . 2-14
2.4.1 Pump Eluent Manifold . . . . . . . . . . 2-15
2.4. 2 Pump Heads . . . . . . . . . . . . . . . 2-16
2.4. 3 Pump Mixer s . . . . . . . . . . . . . . . 2-17
2.4.4 Pump Pr iming Block . . . . . . . . . . . 2-17
2.4. 5 Pres sure Transducer . . . . . . . . . . . 2-17
2.5 Vacuum Degas Pump Assembly (Optional) . . . 2-18
2.6 E luent Reservoirs . . . . . . . . . . . . . . . . . 2-19
iii
Contents
3 • Operation a nd Maintenance
2.7 Rear Panel . . . . . . . . . . . . . . . . . . . . . 2-20
2.8 Functional Descri pti on . . . . . . . . . . . . . . 2 -21
2.8. 1 Oper a t i n g M o d es . . . . . . . . . . . . . 2-23
2.8. 2 Method Control . . . . . . . . . . . . . 2-2 4
2.8.3 Eluent Delivery . . . . . . . . . . . . . . 2- 25
3.1 Getting Ready to Run . . . . . . . . . . . . . . . 3-3
3.1.1 De gas El uents . . . . . . . . . . . . . . 3-3
3.1.2 Filter E luents . . . . . . . . . . . . . . . 3-4
3.1.3 Pressurize Eluent Reservoirs . . . . . . 3-4
3.1.4 Start -Up . . . . . . . . . . . . . . . . . . 3-5
3.1.5 Selecting the Pressure Limits . . . . . . 3-5
3.2 Running Under Direct Control . . . . . . . . . . 3-6
3.3 Running Under Method Control . . . . . . . . . 3-9
3.3. 1 Creat ing a New Metho d . . . . . . . . . 3-10
3.3.2 Running a Me thod . . . . . . . . . . . . 3- 12
3.3.3 Editing a Method . . . . . . . . . . . . . 3-12
3.3.4 Delet ing a Metho d . . . . . . . . . . . . 3-14
3.3.5 Changing the Runn ing Method . . . . . 3-14
3.3.6 Controlling the Method C lock . . . . . 3-14
3.4 E x ample Method s . . . . . . . . . . . . . . . . . 3 -14
3.4.1 Isocratic M ethod Example . . . . . . . . 3-15
3.4.2 Linear Gradient Method Example . . . 3-16
3.4.3 Curved Grad ient Method Example . . . 3-22
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3.4.4 Editing a Running Method E xample . . 3-26
3.5 Routine Maint en ance . . . . . . . . . . . . . . . 3-29
3.5.1 Da ily Maint enance . . . . . . . . . . . . 3-29
3.5.2 Pe riodic Maint enance . . . . . . . . . . 3-31
3.6 Sh utd o wn . . . . . . . . . . . . . . . . . . . . . . 3-31
4 • Troubleshoot ing
4.1 Left-Right Pump Head Pressure Fluctua tions . . 4-3
4.2 Pump Will Not Start . . . . . . . . . . . . . . . . 4-6
4.3 Pu mp Stops . . . . . . . . . . . . . . . . . . . . 4-6
4.4 L iquid L e aks/Leak Alarm . . . . . . . . . . . . . 4- 9
4.5 No isy Pump Mo tor . . . . . . . . . . . . . . . . 4-11
Contents
4.6 Vacuum Degas Pump Does Not Run . . . . . . . 4-12
4.7 Vacuum Degas Pump Calibration Fails . . . . . 4-13
4.8 Inoperative Relay Control Function . . . . . . . 4-14
4.9 Poor Chromatographic Reproducibility . . . . . 4-14
5 • Service
5.1 Cleaning the Check Valve s . . . . . . . . . . . . 5 -3
5.2 P i ston S eal Replacemen t . . . . . . . . . . . . . 5-6
5.3 Pu mp Piston Repl acement . . . . . . . . . . . . 5-10
5.4 Pressu re Transducer Pad and O- Ring
Replacement . . . . . . . . . . . . . . . . . . . . 5-11
5.5 Pressure Transducer Waste Valve O-Ring
Replacement . . . . . . . . . . . . . . . . . . . . 5-13
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v
Contents
5.6 Proportioning Valve Replacement . . . . . . . . . 5-14
5.7 Active Mixer Filter Replacement . . . . . . . . . 5-16
5.8 Changing Main Power Fuses . . . . . . . . . . . . 5-19
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A • Specifications
A.1 Electrica l . . . . . . . . . . . . . . . . . . . . . . A- 3
A.2 E nvir o n mental . . . . . . . . . . . . . . . . . . . A-3
A.3 Ph ysical . . . . . . . . . . . . . . . . . . . . . . A-3
A.4 Di splay and Keypad . . . . . . . . . . . . . . . . A- 3
A.5 Hy draulics . . . . . . . . . . . . . . . . . . . . . A-4
A.6 Gr adient Contr ol . . . . . . . . . . . . . . . . . . A-5
A.7 Vacuum Degas Pump As sembly . . . . . . . . . A-5
B • Installation
B.1 Facility Requirements . . . . . . . . . . . . . . . B-3
B. 2 Install atio n Ins tructions . . . . . . . . . . . . . . B- 4
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B. 2.1 P o wer Co nnection . . . . . . . . . . . . B-4
B.2.2 Electronic Chassis Connections . . . . . B-5
B.2.3 DX LAN Network Connec tion (Optional) B-7
B. 2.4 Waste Lines . . . . . . . . . . . . . . . . B- 9
B.2.5 Eluent Outlet Line Connection . . . . . B-10
B.2.6 E luent Inlet Line Con nectio ns . . . . . B-10
B. 2.7 P riming the Pump . . . . . . . . . . . . B- 11
B. 3 Automat ic SRS Power Co ntrol . . . . . . . . . . B- 15
B.4 Stacki n g Modules . . . . . . . . . . . . . . . . . B-17
B.5 Securing Modules (Opti o nal) . . . . . . . . . . . B-18
B.5.1 I n stalling a Shoe . . . . . . . . . . . . . B-1 8
B. 5.2 I nstalling a Tie . . . . . . . . . . . . . . B-19
vii
Contents
C • User Interface
C.1 Operational Screens . . . . . . . . . . . . . . . . . C-5
C.1.1 Main Screen . . . . . . . . . . . . . . . . C-5
C.1.2 Detail Screen . . . . . . . . . . . . . . . . C-7
C.1.3 Method Screen . . . . . . . . . . . . . . . C-8
C.1.4 Method Extension Screen . . . . . . . . . C-10
C.1.5 Module Setup . . . . . . . . . . . . . . . . C-11
C.1.6 Pump Options . . . . . . . . . . . . . . . C-12
C.1.7 Time Function In . . . . . . . . . . . . . . C-13
C.2 Diagnostic Screens . . . . . . . . . . . . . . . . . C-14
C.2.1 Hexadecimal Entry Fields . . . . . . . . . C-14
C.2.2 Diagnostic Menu . . . . . . . . . . . . . . C-14
C.2.3 Power-Up Screen . . . . . . . . . . . . . . C-15
C.2.4 Elapsed T ime . . . . . . . . . . . . . . . . C-16
C.2.5 DSP Status . . . . . . . . . . . . . . . . . C-17
C.2.6 DX LAN Status . . . . . . . . . . . . . . C-18
C.2.7 Keyboard Test . . . . . . . . . . . . . . . C-20
C.2.8 Diagnostic Test . . . . . . . . . . . . . . . C-21
C.2.9 Pressure Statistics . . . . . . . . . . . . . C-23
C.2.10 DSP Code Version . . . . . . . . . . . . . C-24
C.3 Calibration Screens . . . . . . . . . . . . . . . . . C-25
C.3.1 Calibration Menu . . . . . . . . . . . . . C-25
C.3.2 Calibration Status . . . . . . . . . . . . . C-26
C.3.3 Leak Sensor Calibration and Status . . . C-27
C.3.4 Degas Status . . . . . . . . . . . . . . . . C-28
C.3.5 Flow Calibration . . . . . . . . . . . . . . C-29
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1 • Introduction
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 About This Manual . . . . . . . . . . . . . . . . . 1-4
1.2.1 Typefaces . . . . . . . . . . . . . . . . . . 1-5
1.2.2 Safety Messages and Notes . . . . . . . . 1-5
1.2.3 Symbols . . . . . . . . . . . . . . . . . . . 1-6
1.3 Related Manuals . . . . . . . . . . . . . . . . . . . 1-7
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1-1
GP40 Gr adi ent Pu mp
1-2
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1 • Introduction
1.1 Overview
The GP40 Gradient Pump is an integral part of a DX 500
chromatography syste m. It is a microp rocessor-based, dual-pis ton,
variable-speed, gradient de livery system designed to blend and pump
mixtures of up to four different mobile phas es at precisely controlled
flow rates. The pump can deliver the selected mobile phase
composition isocratically, or as a multistep linear or curved gradient.
A Digital Signal Proce ssor (DSP) provides high speed control of
pump flow and press ure.
The GP40 can op erate as a stand -alone produc t or with other Dionex
modules as part of a complete chromatography syste m. It can also
be used with non-Dionex mod ules that meet interface requirements
for so ftwar e, TT L, or r elay contr ol.
The GP40 can be controlled locally, using the front panel keypad
and display, or from a remote host computer with a Dionex
DX LAN interface installed and PeakNet software installed on the
host computer. Limited remote control is also available from any
device capable of providing compatible TTL signals to control the
pump.
The pump’s two basic modes o f control, Direct co ntrol and Metho d
control, enable it to operate with or without reference to time-based
even ts.
The GP40 is available in four versions. An optional vacuum degas
pump is available for all versions :
GP40 Gradient Pump Version With Degas Pump Without Degas
Standar d bore wi th PEEK co mponent s P/N 0441 17 P/N 04416 5
Standar d bore wi th stai nless st eel compo nents P/N 044081 P/N 044 085
Microb ore with PEEK comp onents P/N 0440 86 P/N 044 082
Microb ore with stainles s steel com ponent s P/N 0440 83 P/N 04408 7
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1-3
GP40 Gr adi ent Pu mp
1.2 About This Manual
This manual describes the installation, operation, and maintenance
of the GP40 Gradient Pump.
Chapter 1, Introduction, introduces the product and conventions
used in the manual, and provides safety information.
Chapter 2, Descri ption, is a descri ption of the phys ical aspec ts of the
pump, followed by a des cription of the operating featur es.
Chapter 3, Operation and Maintenance, discusses th e operating
features and meth ods, and pres ents several examples of how to run
methods. Routine preventive maintenance requirements are included
in this chapter.
Chapter 4, Troubleshooting, lists p ossible causes of prob lems and
provides step-by-step procedures to isolate an d eliminate their sources.
Chapter 5, Service, presents step-by-step instructions for service and
parts replacem ent routines.
1-4
Appendix A, Specifications , contai ns the GP40 s pecifications and
installation site specifications.
Appendix B, Installation, des cribes the installation steps necessary
to place the GP40 Gradient Pu mp into operation.
Appendix C, User Inte rface, illustrates and describes a ll front panel
menus and screens .
Appendix D, Pump Head Replacement, explains how to ch ange the
pump heads from 100 µL standard bor e to 25 µL microbore, or vice
vers a.
Appendix E, Relay and TTL Control, describes the relay and T TL
input and outpu t functions and provides setup examples.
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1.2 .1 Typefaces
Typefaces are used in this manual as follows:
•
Capitalized bold type indicates a front pan el button:
1 • Introduction
Press
•
Upper-case bold type indic ates the name of a screen, the
to begin running the metho d.
Enter
name of a m enu, or an on- screen entry:
Go to the
Move the cursor to the
METHOD
screen.
EDIT
1.2. 2 Safety Messages and Notes
This instrument is designed to comply with the requirements
for safety set forth in I EC 1010, Safety Requirements for
Electrical Equipmen t for Measurement, Control, and
Laboratory Use.
This manual contains warnings and precautionary statem ents
that can prevent personal injury and/or damage to th e
instrument when properly followed. Safety mess ages appear
in bold typ e and are acco mpanied by icons.
Indicates a potential ha zard which could result in serious
injury or loss of life. Any hazard of this type will be located
behind a barrier and will be accessible only by use of a
tool. Access may be required during installation,
maintenance, or service.
field .
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Indicates a pot ent ial haza rd to th e oper ator, or damage to
the instrument or other property.
Indicates that the function or process of the instrument
may be impaired. Oper ation does not constitute a hazard.
1-5
GP40 Gr adi ent Pu mp
Informational messages also appear throughout this manual.
These are labeled NOTE and are in bold ty pe:
NOTES call attention to certain information. They alert
you to an unexpected result of an action, suggest how to
optimize t he performan ce of the instrum ent, e tc.
1.2.3 Symbols
The symbols below appear on the pump, or on pump lab els.
NOTE
~
Alternating current
Protective conductor terminal
Power supply is on
Power supply is off
1-6
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1.3 Related Manuals
During installation and operation of the GP40, you may need to
refer to one or mo re of the following manuals ( depending on your
system) for information about other modules and components
included in a DX 500 sys tem.
The following m anuals are included wit h their resp ective modules or
components:
1 • Introduction
• AS3500 Autosampler Editor Manual
• AS40 Automated Sampler Operator’s Manual
(Document No. 03 4913)
(Document
No. 034970)
• CD20 Conductivity Detect or Operator’s Manual
(Document
No. 034854)
• ED40 Electrochemical Detector Operator’s Manual
(Document
No. 034855)
• E01 Eluent Organizer Installation Instructions
(Document
No. 034582)
• Pressurizable Reservoir Installation Instructions
(Document
No. 034851)
• LC10 Chromatography Organizer Operator’s Manual
No. 034858)
• LC20 Chromatography Enclosure Operator’s Manual
No. 034859)
•
LC30 Chromatography Oven Operator’s Manual
(Document
No. 034860 )
(Document
(Document
The following manual is included in the GP40 Ship Kit:
• Installation of Dionex Fe rrule Fittings
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(Document No. 034213)
1-7
GP40 Gr adi ent Pu mp
1-8
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2 • Description
2.1 Front Control Panel . . . . . . . . . . . . . . . . . 2-4
2.1.1 Control Panel Keypad . . . . . . . . . . . 2-5
2.1.2 Display Screens . . . . . . . . . . . . . . 2-10
2.2 Electronics Chassis . . . . . . . . . . . . . . . . . 2-11
LC Leak . . . . . . . . . . . . . . . . . 2-12
LC30 Communication . . . . . . . . . 2-12
LC Air Valves . . . . . . . . . . . . . . 2-13
TTL/Relay . . . . . . . . . . . . . . . . 2-13
CPU . . . . . . . . . . . . . . . . . . . 2-13
2.3 Mechanical Chassis . . . . . . . . . . . . . . . . . 2-14
2.4 Interior Components . . . . . . . . . . . . . . . . 2-14
2.4.1 Pump Eluent Manifold . . . . . . . . . . 2-15
2.4.2 Pump Heads . . . . . . . . . . . . . . . . 2-16
2.4.3 Pump Mixers . . . . . . . . . . . . . . . . 2-17
2.5 Vacuum Degas Pump Assembly (Optional) . . . . 2-18
2.6 Eluent Reservoirs . . . . . . . . . . . . . . . . . . 2-19
2.7 Rear Panel . . . . . . . . . . . . . . . . . . . . . . 2-20
2.8 Functional Description . . . . . . . . . . . . . . . 2-21
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2.4.4 Pump Priming Block . . . . . . . . . . . 2-17
2.4.5 Pressure Transducer . . . . . . . . . . . . 2-17
2.8.1 Operating Modes . . . . . . . . . . . . . . 2-23
Local Mode . . . . . . . . . . . . . . . 2-23
Remote Mode . . . . . . . . . . . . . . 2-23
2.8.2 Method Control . . . . . . . . . . . . . . 2-24
2.8.3 Eluent Delivery . . . . . . . . . . . . . . 2-25
Isocratic Eluent Run . . . . . . . . . . 2-25
Gradient Eluent Run . . . . . . . . . . 2-25
2-1
GP40 Gr adi ent Pu mp
2-2
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2 • Description
The GP40 Gradient Pump co nsists of two single-unit DX 500
encl o su re s (s ee Figure 2-1). The up per unit hous es the electronic
components, an d the lower unit ho uses the pump heads and other
mechanical pump as semblies.
The GP40 is de signed to have other single- or dual-unit modules
stacked on top of it, to a max imum of four units. See Section B.4
for the recommended s tacking configuration for DX 500 systems .
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Figure 2-1. GP40 Enclosure
2-3
GP40 Gr adi ent Pu mp
2.1 Front Control Panel
The control pa nel on the upper door of the GP40 enclosure cont ains
the liquid crystal display (LCD), the membrane keypad, and the
actuator for the main power switch (see Figu re 2-2). The doo r opens
to provide acce ss to the el ectronics cha ssis, describe d in Section 2.2.
Screen Contras t
Information is displayed on the LCD, also called the
screen
. To
adjust the screen contrast, u se the knurled kno b in the recess below
the keypad (see Figure 2- 2).
Tilt Panel
To maximize visibility, the front control panel can be tilted to four
different positions. To tilt the panel, support the door at the left side
(to prevent it from opening) and lift firmly on the tab in the middle
of the recess below the keypad (see Figure 2- 2). Push on th e tab to
return the panel to its vertical position.
Power Switc hes
The main power switch is on the bulkhead beh ind the upper door
(see Figure 2-1). An actuator for the main power switch is on the
outside of the front door, at the lower left cor ner (see Figure 2-2) .
The actuator f unctions on ly when the d oor is fully closed.
When the door is open, press th e main power switch o n the
bulkhead, instead of the actuator, to turn the module off and on.
To prevent damage to the pump circuitry and components,
always wait at least 15 seconds after powering down before
turning on the power again.
2-4
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GP40 Gradient Pump
100.0 %A
0.0 %B
0.0 %C
0.0 %D
Help Message
INJECT
COLUMN A
LOCAL
2.00
PSI
mL/MIN
MIN
1000
10.25
METHOD 05
2 • Description
Off/On
Prime
Insert Select
Delete
Main Power
Switch Actuator
Hold/Run
Reset
Help Menu
Select
Tab
(for opening
the door)
Figure 2-2. GP40 Display and Keypad Layout
2. 1 . 1 Control Panel Keyp ad
The keypad is used to directly control pump operation, as
well as to create and modify programme d series of timed
events, called
•
Press
methods
Menu
to display a list of available screens.
. In summary:
Knob
(for adjusting
the contrast)
7
45
1
0
8
23
Tab
(for tilting
the panel)
9
6
Enter
•
•
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In the screens, only the fields shown in r everse video can
be edited. Oth er fields display informatio n only.
To edit a field, use the four dire ctional arrow buttons to
position the cu rsor in the reverse vid eo fields. Use the
numerical buttons to enter variable values. Use the
Select
∆
and
Select
buttons to choose between
∇
2-5
GP40 Gr adi ent Pu mp
predetermi ned options . Pressin g a
Select
button increas es
(or decreas es) a numerica l value by one, w hile holding
down a
Select
button increa ses (or decreases) a numerical
value continuously.
•
To execute the selected value, press
Enter
, or press an
arrow button to move the cursor to the next field and
automatically enter the value.
A high-pitched be ep sounds whe n you press a button. When
an error occurs, this beep is lower in frequency. The beeps
can be disabled from the
MODULE SET-UP
screen ( see
Section C.1.6).
Off/On
Turns the pump motor off and on.
In Direct control (see Section 2.8), turnin g on the motor
causes it to pump isocratic ally using the displayed e luent
percentages a nd flow rate.
In Method control (see Section 2 .8.2), turning on the motor
causes it to pu mp at the eluent per centages and flow ra te for
the elapsed time of th e selected method, o r at the initial
conditions (when the method clock is a t
INIT
).
2-6
Prime
This button is used when priming the pump heads.
Prime
causes the pump to run at maximum volume (2.5 mL/min,
microbore; 10.0 mL/min standard bore). If the pump motor is
off when you press
Prime
, the pump automatically turns on.
To exit priming and return to the normal flow rate, press
Prime
again or press
Off/On
to turn the pump moto r off. See
Section B.2.7 for detailed priming instructions.
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2 • Description
Insert
Inserts a new timed step into a method. This button functions
only when the cursor is in a
METHOD
extension s creen.
TIME
field in the
METHOD
or
1. Move th e cursor to the
TIME
field and press
Insert
. The
new step is added after the cursor positio n. Parameter
values in the new s tep are blank.
2. Fill in the time value and press
Enter
or a cursor arrow
button. If you move the cu rsor to a di fferent field before
entering the time value, the inserted step will be
incomplete and will disappear. You can insert timed steps
in any order. After you press
Enter
, they will be
automatically organized in correct chron ological order.
Delete
Removes the value from the current entry field, allowing
entry of a new value. To restore the previous value, move the
cursor from the field before entering the new value.
In th e
METHOD
screen, pressing
Delete
when the cursor is in a
step ent ry field “blank s” the step p arameter value. When the
cursor is moved from the field, the field remains blank (the
previous value is not restor ed as in other s creens). Blank step
fields indicate there is no change from the previous step.
To us e
1. Position the cursor in the method’s time field and press
2. Press
Doc. 034856 -0 4 10/95
Delete
Delete
to delete the step, press any button exce pt
to delete an entire method step:
. The time is removed and the help line dis plays:
TO DELETE THIS STEP, PRESS DELETE AGAIN
Delete
again to delete the step. If you do not want
Delete
or the
decimal point and the origin al time and step parameters
are then resto red.
2-7
GP40 Gr adi ent Pu mp
Hold/Run
Turns the method clock off (
Hold
) and on (
Run
). This button
functions only when the pump is under Method control (see
Section 2.8.2).
When the method clock is in Hold, pressing
Hold/Run
, starts
the clock. The clock s tarts either at the initial step of a new
method, or if resuming an interrupted method, at the time at
which the clock was put in Hold.
When the m ethod clock is in Run, pr essing
Hold/Run
, stops
the clock, thereby “holding” the method and freezing the
current conditions.
Reset
Changes the method clock time to
INIT
and causes the initial
conditions specified by the method to occur. This button
functions only when the pump is in Method control.
If the method is running, it continues running. If the method
is on hold, the metho d clock executes the initial conditions
and holds.
2-8
Select
and
∆
Select
∇
When the cursor is positioned a t a field that has
predetermined parameters, these buttons cycle through the
choices. In fields which have predeter mined numeric values,
Select
∆ increases the value by one unit and
decreases the value by one un it. Holding down the
Select
∇
Select
button increa ses (or decreases) the value cont inuously. Press
Enter
or a cursor ar row button to execute the new value.
,
, and
→
←, ↑
↓
The four cursor directional buttons move the cursor, in the
direction of the arrow, to the next entry field. If there is no
Doc. 034 856-04 10/95
2 • Description
changeable field in that directio n, the curs or moves
diagonally or remains where it is.
After entering or selecting a new value in an entry field,
pressing an arrow button to move to another field als o saves
and/or executes the change. This performs the same function
as pressing
Enter
followed by an arrow.
In a few fields the cur sor arrow does not perform the enter
function. You must pres s
Enter
after entering or selecting
values in the following fields:
•
DIA GNOSTIC TEST
•
SA VE T O
•
Calibration screen fields
•
Menu fields
Help
and
screen fields
RUN
fields on the
METHOD
screen
Displays a help screen specific to the current entr y field.
Displays one o f three menus, dep ending on the current screen:
•
•
•
Doc. 034856 -0 4 10/95
Menu
From any operational s creen, pressing
MENU of SCREENS
.
From any diagnostic screen, pressing
DIAGNOSTIC MENU.
MENU of SCREENS
Pressing
.
Menu
again returns you to the
From any calibration scre en, pressing
CALIBRATION MENU
DIAGNOSTIC MENU
the
. Pressing
and then to the
Menu
Menu
displays the
Menu
displays the
Menu
displays the
again returns yo u to
MENU of SCREENS.
See Figure C-1 for the GP40 scree ns and menu s tructure.
2-9
GP40 Gr adi ent Pu mp
Numeric Buttons
Enters numeric values into the current entry field. The
numeric buttons are 0 through 9 and th e decimal.
Enter
Saves and/or executes changes made in entry fields. After
pressing
the same field. It does not automa tically move to the next
entry field. In menu screens, press ing
highlighted screen.
Enter
, the cursor moves back to the left margin of
Enter
opens the
In th e
METHOD
screen, pressing
copy only. To save the editing change s to a permanent
method, move the cursor to the
method number, and press
2.1.2 Display Screens
When the pump has successfully powered-up and passe d all
diagnostic tests, the
Figure 2-3 ) and after a few se conds, th e
(see Figure 2-5) . If one of the d iagnostic tests fails at
power-up, the
MAIN
screen. See Section C.2.8 if this occurs.
Help Message
DIAGNOSTIC TEST
GP40 GRADIENT PUMP
Enter
saves entries to an edit
Enter
POWER-UP
SAVE T O
.
screen displays briefly (see
field, enter the
MAIN
screen displays
screen displays instead of the
PUMP HEAD VOLUME 100 uL
MODULEWARE REV n.nn
BIOS REV n.nn
2-10
Figure 2-3. Power- Up Screen
Doc. 034 856-04 10/95
2 • Description
100.0 %A
0.0 %B
LOAD
COLUMN A
2000
2.00
PSI
mL/MIN
0.0 %C
10.27
0.0 %D
Help Message
POWER-UP
The
DIAGNOSTIC MENU
later time.
MAIN
The
screen displays status information in enlarged
characters to make viewing easier from a distance. From the
MAIN
screen you can set p ump operating parameters such as
the percentage of eluents to run, th e flow rate, or the method
number to run.
To access the remaining GP4 0 screens, press the
to display the
menu, you can sele ct individual operational scr eens, or the
DIAGNOSTIC MENU
number and press
screen name and press
description of ea ch GP40 screen.
screen can also be op ened from the
MENU of SCREENS
LOCAL 2
Figure 2-5. Main Screen
METHOD
, if you wish to view the information at a
(see Figure 2-4). From the
screen. To open a screen, en ter the screen
Enter
, or move the cursor to the desired
Enter
. See Appendix C for a
MIN
Menu
button
Doc. 034856 -0 4 10/95
MAIN SCREEN
1
DETAIL SCREEN
2
METHOD
3
DEGAS OPTIONS
4
Help Message
Figure 2-4. Menu of Screens
MENU of SCREENS
MODULE SET-UP
5
PUMP OPTIONS
6
TIME FUNCTION IN
7
DIAGNOSTIC MENU
8
2-11
GP40 Gr adi ent Pu mp
2.2 Electronics Chassis
The electronics c hassis is locate d behind the upper door of the GP4 0
enclosure . The chas sis include s several electro nic cards (pr inted
circuit boards) that are used to contr ol the GP40. Connec tors on the
cards also allow communic ation between the GP4 0 and other
DX 500 modules. Figure 2-6 shows the e lectronics components with
the upper door op en. To open the door, pull on the tab loca ted to the
right of the main power actuator (see Figure 2-2) .
Do not remove any of the electronics cards fro m the pump.
There are no user-serviceable components on t he cards.
If serv icing i s requir ed, it must be p erformed by qual ified
personnel and appropriate electrostatic discharge (ESD)
handling proc edures must be followed .
2-12
Figure 2-6. Electronics Chassis
(Located behind pump upper door)
Doc. 034 856-04 10/95
2 • Description
LC Leak
The leak control cable from the LC20 C hromatography
Enclosure or the LC10 Chromato graphy Organizer connects
to the
LC LEAK
connector in slot 1.
When a leak occurs in the LC10 o r LC20, it is reported to the
GP40. The LC30 Chromatography Oven does not connect to
the GP40
LC LEAK
connector; it has its own internal leak
control electron ics.
LC30 Communication
The LC30 Chr omatography Oven’s RJ-11 serial cable
connects to the
LC COMM
connector in sl ot 1. When
connected, the L C30 can be remotely co ntrolled by the
PeakNet workstation.
LC Air Val ves
The cable from th e air solenoid valves on the LC1 0, LC20, or
LC30 connects to the
LC AIR
connector in s lot 1. When
connected, the GP40 can e lectrically act uate the s olenoid
valves which control the position of the injection valve and
the optional column switch ing valve in the LC10, LC20, and
LC30. Use the
MAIN
or
METHOD
screen to select the valve
positions. See Appen dix C for a description of the screens.
TTL/Relay
A strip of eight rela y and TTL conn ectors is located in slot 4 .
These connec tors interface with Dion ex and non-Dionex
modules for relay and TTL control of the pump. Appendix E
describes the r elay and TTL func tions and the connec tions
between the GP40 an d other modules .
CPU
Control Moduleware for the GP40 resides on the CPU/Relay
cards.
Doc. 034856 -0 4 10/95
2-13
GP40 Gr adi ent Pu mp
The CPU log ic and Relay I/O cards occupy slo t 5 in the car d
cage. The R elay I/O card rid es piggyback on th e CPU card
and extends over the front o f slot 4. The card is short enough
to allow the optional DX LAN p ump interface card
(P/N 044195) to mou nt behind it in slot 4. A 60-p in ribbon
cable links the CPU log ic to the display and keypad. The
logic monitors the inter nal power supply outpu ts, and reports
the status on the multic olored LED at the bottom of s lot 4.
•
Green indicates normal operation.
•
Red indicates a power fault. The module will enter its
diagnostic state a nd inhibit all other controls u ntil the
fault is corrected. If this occurs, turn the power off for a
few seconds and then turn it back on. If the problem
persists, call Dionex.
2-14
Doc. 034 856-04 10/95
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