Biotek ELx50 User manual

Operator’s Manual
All Models
Microplate Strip Washer
ELx50
.
ELx50™
January 2008 © 2008 Part Number 4071000 Revision L BioTek® Instruments, Inc.
ii | Preface

Notices

BioTek Instruments, Inc.
®
Highland Park, P.O. Box 998
Winooski, Vermont 05404-0998 USA

All Rights Reserved

© 2008, BioTek® Instruments, Incorporated. No part of this publication may be reproduced, transcribed, or transmitted in any form, or by any means electronic or mechanical, including photocopying and recording, for any purpose other than the purchaser’s use without written permission of BioTek Instruments, Inc.

Trademarks

BioTek® is a registered trademark, and ELx50™ and Liquid Level Alert™ are trademarks of BioTek Instruments, Inc. Microsoft trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. All other trademarks are the property of their respective holders.

Restrictions and Liabilities

Information in this document is subject to change and does not represent a commitment by BioTek Instruments, Inc. Changes made to the information in this document will be incorporated in new editions of the publication. No responsibility is assumed by BioTek for the use or reliability of software or equipment that is not supplied by BioTek or its affiliated dealers.
®
and Excel® are either registered
BioTek Instruments, Inc.

Contents

Preface................................................................................................i
Notices .......................................................................................... ii
All Rights Reserved..................................................................... ii
Trademarks ............................................................................... ii
Restrictions and Liabilities............................................................ ii
Contact Information........................................................................ ix
Customer Service and Sales........................................................ ix
Service/TAC.............................................................................. ix
European Coordination Center/Authorized European Representative.. ix
Document Conventions .................................................................... x
Revision History ............................................................................. xi
Intended Use Statement.................................................................xiv
Quality Control..............................................................................xiv
Repackaging and Shipping..............................................................xiv
Warnings......................................................................................xiv
Hazards and Precautions .................................................................xv
CE Mark Information..................................................................... xvii
Electromagnetic Interference and Susceptibility ............................... xviii
User Safety ................................................................................ xviii
Safety Symbols.............................................................................xix
Chapter 1: Introduction.....................................................................1
Introducing the ELx50 Microplate Strip Washer....................................2
ELx50 Washer Variations.................................................................. 3
Manifold Variations......................................................................3
Patented Dual-Manifold Design................................................. 4
Carrier Variations........................................................................5
Software Variations.....................................................................5
Hardware Features .......................................................................... 7
Accessories Included........................................................................8
Optional Accessories ........................................................................9
Specifications................................................................................ 10
Microplates .............................................................................. 10
Electrical ................................................................................. 10
Physical................................................................................... 10
Environmental.......................................................................... 10
Hardware ................................................................................ 10
Performance Specifications......................................................... 11
Product Support & Service.............................................................. 12
Contacting the Technical Assistance Center .................................. 12
Returning Instruments for Service/Repair..................................... 12
Contents | iii
ELx50 Operator's Manual
iv | Preface
Chapter 2: Installation .................................................................... 13
Unpacking and Inspecting the Instrument......................................... 14
Unpacking the 16-Channel Manifold, Mist Shield, and Bottles .......... 15
Unpacking the 8-, 8s-, or 12-Channel Manifold, Microplate Carrier,
Power Supply, Tubing, In-Line Filter, and Optional Pump Muffler...... 16
Unpacking the Inner Shipping Container and Foam Corner Blocks.... 17
Unpacking the Aspiration Carrier (ELx50/8FMW models only).......... 18
Unpacking the ELx50 Washer ..................................................... 19
Setting Up the ELx50 ..................................................................... 20
Operating Environment.............................................................. 20
Installing the Carrier and Manifold............................................... 20
Microplate Carrier................................................................. 20
8-, 8s-, or 12-Channel Manifold.............................................. 21
16-Channel Manifold............................................................. 22
Aspiration Carrier (ELx50/8FMW) ........................................... 23
Connecting the Tubes and Bottles ............................................... 25
Before Connecting the Tubes and Bottles................................. 25
Waste System ..................................................................... 28
Supply System .................................................................... 31
Liquid Level Alert Option ....................................................... 34
Final Check ......................................................................... 35
Attaching the Mist Shield ........................................................... 35
Connecting the Power Supply and Cord........................................ 36
Serial Port for Communication With Other Devices......................... 36
Verifying Performance.................................................................... 37
Repackaging and Shipping.............................................................. 38
Before Repackaging the Instrument............................................. 38
Repackaging the ELx50 and Its Accessories.................................. 38
Removing the Mist Shield...................................................... 39
Removing the Manifold and Microplate Carrier.......................... 40
Removing the Aspiration Carrier (ELx50/8FMW) ....................... 41
Packing the 8-, 8s-, or 12-Channel Manifold in Its Container ...... 42
Packing the 16-Channel Manifold in Its Container...................... 43
Rotating the Cam................................................................. 44
Placing the Washer into the Inner Shipping Container................ 45
Placing the Aspiration Carrier into the Inner Shipping Container.. 46
Packing the Inner Shipping Container...................................... 47
Packing the 16-Channel Manifold and Mist Shield...................... 48
Packing the 8-, 8s-, or 12-Channel Manifold, Microplate Carrier,
and Power Supply ................................................................ 49
Chapter 3: Operation.......................................................................51
ELx50 Front Panel.......................................................................... 52
Keypad Description........................................................................ 53
Entering Program Names................................................................ 54
BioTek Instruments, Inc.
Contents | v
System Startup............................................................................. 54
Main Menu.................................................................................... 55
General Usage Guidelines ............................................................... 56
Before Running Any Program...................................................... 56
Maintenance ............................................................................ 58
Programming Considerations...................................................... 58
Liquid Level Alert Option ....................................................... 59
Wash........................................................................................... 60
Run Wash Program ................................................................... 60
Run Wash Program Options................................................... 60
Define Wash Program................................................................ 61
Define Wash Program Options................................................ 61
Define Wash METHOD Program Options................................... 62
Wash METHOD Defaults and Ranges ....................................... 63
Define Wash DISPENSE (DISP) Program Options ...................... 64
Wash DISPENSE Defaults and Ranges..................................... 66
Define Wash ASPIRATION (ASPIR) Program Options ................. 67
Wash ASPIRATE Defaults and Ranges...................................... 69
Edit Wash Program ................................................................... 71
Copy Wash Program .................................................................. 71
Copy Wash Program Options................................................. 71
Delete Wash Program................................................................ 71
Delete Wash Program Options............................................... 71
Prime........................................................................................... 72
Define Prime Program ............................................................... 72
Define Prime Program Options ............................................... 72
PRIME Program Defaults and Ranges ...................................... 73
Run Prime Program................................................................... 74
Run Prime Program Options.................................................. 74
Edit Prime Program................................................................... 74
Copy Prime Program ................................................................. 75
Copy Prime Program Options ................................................ 75
Delete Prime Program ............................................................... 75
Delete Prime Program Options .............................................. 75
Dispense...................................................................................... 76
Define Dispense Program........................................................... 76
Define Dispense Program Options.......................................... 76
Run Dispense Program .............................................................. 76
Run Dispense Program Options ............................................. 77
Edit Dispense Program .............................................................. 77
Copy Dispense Program............................................................. 77
Copy Dispense Program Options............................................ 78
Delete Dispense Program........................................................... 78
ELx50 Operator's Manual
vi | Preface
Delete Dispense Program Options.......................................... 78
Aspiration..................................................................................... 79
Define Aspiration Program.......................................................... 79
Define Aspiration Program Options ......................................... 79
Define Aspirate-only Program Options..................................... 80
Aspirate-only Program Defaults and Ranges............................. 80
Run Aspiration Program............................................................. 80
Run Aspiration Program Options............................................. 81
Edit Aspiration Program............................................................. 81
Copy Aspiration Program ........................................................... 81
Copy Aspiration Program Options ........................................... 82
Delete Aspiration Program.......................................................... 82
Delete Aspiration Program Options ......................................... 82
Soak............................................................................................ 83
Define Soak Program................................................................. 83
Define Soak Program Options ................................................ 83
Edit Soak Program.................................................................... 84
Copy Soak Program .................................................................. 84
Copy Soak Program Options .................................................. 84
Delete Soak Program................................................................. 85
Delete Soak Program Options ................................................ 85
Linking Programs........................................................................... 86
Define Link Program.................................................................. 86
Define Link Program Options.................................................. 86
View Link Program.................................................................... 87
Run Link Program ..................................................................... 87
Run Link Program Options.................................................... 88
Delete Link Program.................................................................. 88
Delete Link Program Options................................................. 88
Utility .......................................................................................... 89
Tests ...................................................................................... 89
Self-Test (SLFCHK) .............................................................. 89
Configuration Information (CHKSUM)...................................... 89
Setup...................................................................................... 90
Manifold (MANIFLD) ............................................................. 90
SENSOR ............................................................................. 90
AutoPrime................................................................................ 91
ELx50™ Microplate Strip Washer Menu Maps ..................................... 92
Chapter 4: Maintenance and Performance Verification
(IQ/OQ/PQ).....................................................................................97
Overview...................................................................................... 98
Recommended Maintenance and Performance Verification Schedules .... 98
Recommended Maintenance Schedule .............................................. 99
Recommended Performance Verification Schedule.............................100
BioTek Instruments, Inc.
Contents | vii
Warnings & Precautions.................................................................101
Maintenance Programs..................................................................102
Prime Programs ...........................................................................103
Daily Maintenance ........................................................................104
DAY_RINSE.............................................................................104
AUTOPRIME ............................................................................104
AutoPrime Program Options..................................................105
Overnight Maintenance..................................................................106
OVERNIGHT_LOOP...................................................................106
RINSE_AND_SOAK...................................................................107
Monthly Maintenance ....................................................................108
Tools and Supplies...................................................................108
Cleaning the Bottles.................................................................109
Cleaning the Manifold...............................................................109
Cleaning the Aspirate and Dispense Tubes...................................110
8-, 8s-, or 12-Channel Manifold.............................................110
16-Channel Manifold............................................................110
Cleaning the Carrier.................................................................111
Microplate Carrier................................................................111
Aspiration Carrier (ELx50/8FMW only)....................................112
Cleaning the Check Valves ........................................................114
Long-Term Storage Maintenance ....................................................115
LONG_SHUTDOWN...................................................................115
Disinfect the Aspiration Carrier (ELx50/8FMW).............................116
Storing the ELx50™......................................................................116
Decontamination ..........................................................................117
Purpose..................................................................................117
Tools and Supplies...................................................................118
Decontamination Procedure for External Components....................119
Decontamination Procedure for Tubing and Manifold .....................119
Alternate Decontamination Procedure for Tubing and Manifold........120
Decontamination Procedure for Aspiration Carrier (ELx50/8FMW) ... 120
Performance Verification................................................................122
Installation Qualification (IQ) .........................................................123
Operational Qualification (OQ)........................................................123
Performance Qualification (PQ).......................................................124
Self-Test and Checksum Test .........................................................125
Self-Test ................................................................................125
Configuration Information (CHKSUM)..........................................125
Liquid Tests for the 8-, 8s- and 12-Channel Manifolds........................126
Evacuation Efficiency and Dispense Precision Tests.......................126
Materials............................................................................126
Evacuation Efficiency Test Procedure......................................127
Dispense Precision Test Procedure.........................................128
ELx50 Operator's Manual
viii | Preface
Liquid Tests Worksheet (8-, 8s-, and 12-Channel Manifolds) ..........129
Liquid Tests for the 16-Channel Manifold..........................................130
Evacuation Efficiency and Dispense Precision Tests.......................130
Materials............................................................................130
Evacuation Efficiency Test Procedure......................................131
Dispense Precision Test Procedure.........................................132
Liquid Tests Worksheet (16-Channel Manifold).............................133
Liquid Test for the Aspiration Carrier (ELx50/8FMW)..........................134
Evacuation Efficiency Test.........................................................134
Materials............................................................................134
Evacuation Efficiency Test Procedure......................................134
Liquid Test Worksheet (Aspiration Carrier)...................................136
Maintenance/Performance and Operational Logs ...............................137
Chapter 5: Troubleshooting...........................................................141
Overview.....................................................................................142
Troubleshooting Checklist .........................................................142
Troubleshooting Charts .................................................................143
Washer Start-Up......................................................................143
Fluid Aspiration .......................................................................144
Fluid Delivery..........................................................................148
Fluid Leakage.......................................................................... 150
Carrier Movement....................................................................151
Microplate Carrier................................................................151
Aspiration Carrier (ELx50/8FMW) ..........................................151
Washer Manifold Movement....................................................... 151
Microplate Scratches ................................................................152
Syringe Drive Movement...........................................................152
Appendix A: Error Codes................................................................153
Error Codes .................................................................................154
General Errors .............................................................................155
Fatal Errors .................................................................................157
Dispense Volume Invalid for Manifold Type (0F00 Error).....................158
Appendix B: ELx50 Manifold Variations ......................................... 159
ELx50 Manifold Variations..............................................................160
Reconfiguring the Washer .........................................................160
Hardware Steps.......................................................................161
Software Steps........................................................................162
Appendix C: Chemical Compatibility ..............................................163
Components and Materials Composition...........................................164
Appendix D: Default Programs ......................................................165
Default Programs..................................................................... 166
BioTek Instruments, Inc.

Contact Information

BioTek® Instruments, Inc.
Highland Park, P.O. Box 998
Winooski, Vermont 05404-0998 USA

Customer Service and Sales

Internet: www.biotek.com
Phone: 888-451-5171 (toll free in the U.S.)
802-655-4740 (outside the U.S.)
Fax: 802-655-7941
E-Mail: customercare@biotek.com
Contact Information | ix

Service/TAC

Phone: 800-242-4685 (toll free in the U.S.)
802-655-4740 (outside the U.S.)
Fax: 802-655-3399
E-Mail: tac@biotek.com

European Coordination Center/Authorized European Representative

BioTek® Instruments GmbH
Kocherwaldstrasse 34
D-74177 Bad Friedrichshall
Germany
Internet: www.biotek.de
Phone: +49 (0) 7136 9680
Fax: +49 (0) 7136 968 111
E-Mail: info@biotek.de
ELx50 Operator's Manual
x | Preface

Document Conventions

This manual uses the following typographic conventions:
Example Description
This icon calls attention to important safety notes.
Warning!
A Warning indicates the potential for bodily harm and tells you
how to avoid the problem
.
Caution
DEFINE
Note:
A Caution indicates potential damage to the instrument and tells
you how to avoid the problem.
Text in COURIER font represents menu options as they appear on
the instrument’s display.
Bold text is primarily used for emphasis.
This icon calls attention to important information.

About This Manual

The intent of this Operator’s Manual is to instruct the new user how to set up and operate BioTek’s ELx50™. To help you read and understand this manual, certain document conventions have been used.
Major topic headings start a new page (such as give you a visual and style clue that a new major subject is being introduced. One or more subheadings may appear below each major heading.
Document Conventions, above) to
BioTek Instruments, Inc.

Revision History

Revision Date Changes
A 6/97 First Issue. B 9/97
C 4/99 Updated menu sequences, addresses. D 4/99 Revised operator’s manual to reflect BOM revision. E 6/99 Added support for 16-channel manifold/384-well plates. F 3/01
G 10/03
H 2/04
I 2/07
Added valve tubing connection diagram. Corrected rear panel figure.
Revised Chapter 4 maintenance procedures; removed Appendix B, Performance Verification, and added it to Chapter 4. Added a log to record maintenance.
Updated Notices to include current company contact information. Updated Safety Symbols and Intended Use. Added Chemical Compatibility information to Precautions. Updated Warranty to include Bio-Tek’s current warranty statement. Changed operating environment temperature range from 15°C - 30°C to 15°C - 40°C. Added Registration Card information. Clarified bleach dilutions for Decontamination.
Reformatted entire manual according to new template. Changed selectable ranges for the following throughout manual to conform to software specs: Prime Volume from 1 to 999 ml to 1 to 200 ml; Shake Duration from 0 to 600 seconds to 1 to 600 seconds, Bottom Dispense Volume from 25 to 3000 µl/well to 50 to 3000 µl/well. Updated introductory material, enhanced Hardware Features, Package Contents, and Optional Accessories. Corrected specs for physical dimensions and storage and operating temperatures. Updated contact information, enhanced Unpacking and Packing instructions with new text and 14 new figures. Enhanced Operation chapter with new sections: Keypad Description, System Startup, Main Menu, and Utility. Added new Defaults and Ranges tables for Wash Method, Wash Dispense, Wash Aspirate, and Prime Programs. Restructured Chapter 4, Maintenance and Performance Verification for continuity, enhanced Decontamination section, updated Liquid Testing section. Enhanced/updated Troubleshooting and Error Codes. Added two new appendices C, Chemical Compatibility, and D, Default Programs.
Added instructions and information in all chapters of the manual for the aspiration carrier (ELx50™/8FMW model). Removed hyphen from “Bio-Tek” (“BioTek”) and changed “ELx50 Automated Strip Washer” to “ELx50 Microplate Strip Washer.” Replaced the previous cover with new cover design from Marketing.
Cont’d on next page
Revision History | xi
ELx50 Operator's Manual
xii | Preface
Revision Date Changes
Updated regulatory/safety information and removed Warranty and Registration Card sections in the Preface. Revised ranges for prime flow rate, dispense flow rate, bottom flow rate, and dispense volume for the 12-channel manifold in Chapter 3, to reflect recent revisions in the washer’s software. Revised instructions for flushing BSA in Chapter 4. Incorporated manual update H2: added dispense volume ranges for 96- and 384-well plates for the 16-channel manifold in Chapter 3 and in Appendix A, and revised the Recommended Maintenance/Performance Verification Schedule in Chapter 4 by moving the Liquid Tests from the IQ to the Initial/Annual OQ and monthly PQ.
J 4/07
K 10/07
Revised Chapters 1 through 5 primarily to support a redesign of the aspiration carrier in the ELx50/8FMW washer: the vacuum grate is now secured in place (under the plate seal gasket) by six screws around the perimeter of the top of the carrier. Also revised vacuum levels for the aspiration carrier: from –240 mmHg to –64 mmH for the 0.047” diameter hole of the carrier’s vent port, and from –64 mmHg to –240 mmHg for the 0.020” diameter hole in the black vent plug.
General. Added information on the Liquid Level Alert™ option, which is available for all ELx50 models. Added information on the new ‘First Strip’ run-time parameter. Additional cleanup and clarifications as described below.
Chapter 1, Introduction. Software Variations: Clarified which features and functions are supported for the different basecode part numbers. Hardware Features: Simplified the description of the supply and waste bottles provided with the instrument. Optional Accessories: Added information on Liquid Level Alert option.
Chapter 2, Installation. Connecting Tubes and Bottles: Added information on the Liquid Level Alert option components. Added Liquid Alert port to drawings. Added instructions for connecting the sensor cables to the select box, and the select box to the washer.
Chapter 3, Operation. Throughout: Added information on the ‘First Strip’ run-time parameter. Updated Menu Maps. General Usage Guidelines: Added section for the Liquid Level Alert option. Linking Programs: Added troubleshooting tip for resolving Link program creation issues. Setup: Added information on new SENSOR option.
Chapter 4, Maintenance/Performance Verification.
Recommended Maintenance and Performance Verification Schedules: Divided the former Maintenance AND Performance
Verification Schedule table into two separate tables. Decontamination: Added warning not to prepare a stronger­than-recommended bleach solution.
Appendix A, Error Codes. General Errors: Added error codes 2800 and 2900, related to the Liquid Level Alert option.
BioTek Instruments, Inc.
Revision Date Changes
L 1/08
General. Added information on the optional vacuum pump muffler for ELx50 washers equipped with the new vacuum pump (washers manufactured after January 2008). Additional changes are described below.
Preface. Updated Directives in the CE Mark section and added Unspecified Use Warning to Hazards and Precautions.
Chapter 1, Introduction. Added the optional vacuum pump muffler to the Hardware Features and Accessories Included sections. Updated the Performance Specifications section for the 96-well: changed residual volume specs from 4.0 µl to
2.0 µl per well, and dispense precision specs from 4.0% CV to 3.0% CV.
Chapter 2, Installation. Updated unpacking/packing artwork and instructions to reflect new packaging materials, and added a graphic of the vacuum pump muffler to illustrations of the washer’s rear panel.
Chapter 4, Maintenance and Performance Verification (IQ/OQ/PQ). In the Evacuation Efficiency and Dispense Precision Tests and Worksheets for the 8-, 8s-, and 12-channel manifolds, changed the residual volume specs from 0.004 grams per well to 0.002 grams per well, and the dispense precision specs from 4.0% CV to 3.0% CV.
Chapter 5, Troubleshooting. In the Troubleshooting Charts, added references to the vacuum pump muffler wherever references to the in-line vacuum filter were present.
Appendix B, Manifold Variations. Removed instructions for returning washers to BioTek for reconfiguration to work with another manifold. (The user can perform all the steps necessary to reconfigure the washer for a different manifold.)
Revision History | xiii
ELx50 Operator's Manual
xiv | Preface

Intended Use Statement

The ELx50™ Microplate Strip Washer provides microplate priming and washing for ELISA™, fluorescence and chemiluminescence immunoassays, cellular and agglutination assays.
The intended use of this instrument is dependent on the instrument’s rear panel label. If there is an IVD label, then the instrument may be used for clinical, research and development, or other non-clinical purposes. If there is no such label, then the instrument may non-clinical purposes.
only be used for research and development, or for other

Quality Control

It is considered good laboratory practice to run laboratory samples according to instructions and specific recommendations included in the assay package insert for the test to be conducted. Failure to conduct Quality Control checks could result in erroneous test data.

Repackaging and Shipping

If you need to ship the instrument to BioTek for service or
repair, contact BioTek for a Return Materials Authorization
(RMA) number, and be sure to use the original packing. Other
forms of commercially available packing are not recommended and can void the warranty. If the original packing materials have been damaged or lost, contact BioTek for replacement packing.

Warnings

Operate the instrument on a flat surface and away from excessive humidity.
When operated in a safe environment according to the instructions in this document, there are no known hazards associated with the ELx50™. However, the operator should be aware of certain situations that could result in serious injury; these may vary depending on the instrument model.
BioTek Instruments, Inc.

Hazards and Precautions

Hazards

Hazards and Precautions | xv
Warning! Power Rating.
supply must be connected to a power receptacle that provides voltage and current within the specified rating for the system. Use of an incompatible power receptacle may produce electrical shock and fire hazards.
Warning! Electrical Grounding.
connect primary power to the ELx50 power supply. Use of a two-prong adapter disconnects the utility ground, creating a severe shock hazard. Always connect the power cord directly to a three-prong receptacle with a functional ground.
Warning! Internal Voltage.
unplug the power supply before cleaning the outer surface of the instrument.
Warning! Liquids.
into internal components creates a potential shock hazard. Wipe up all spills immediately. Do not operate the instrument if internal components have been exposed to fluid.
Warning! Potential Biohazards.
biohazard. Adequate safety precautions should be taken as outlined in the assay’s package insert. Always wear safety glasses and appropriate protective equipment, such as chemically resistant rubber gloves and apron.
Avoid spilling liquids on the instrument; fluid seepage
The ELx50 Microplate Strip Washer’s power
Never use a two-prong plug adapter to
Always turn off the power switch and
Some assays or specimens may pose a
Warning! Unspecified Use.
the guidelines and safeguards specified in this manual could result in a
Failure to operate this equipment according to
hazardous condition.
Warning! Software Quality Control.
manufacturer’s assay package insert when modifying software parameters
and establishing wash methods, using the washer’s onboard software.
Warning! Pinch Hazard.
operation, as the syringe pump may pinch your fingers.
Do not reach under the instrument during
The operator must follow the
ELx50 Operator's Manual
xvi | Preface

Precautions

The following precautions are provided to help avoid damage to the instrument:
Caution: Service.
The washer should be serviced by BioTek authorized
service personnel. Only qualified technical personnel should perform troubleshooting and service procedures on internal components.
Caution: Environmental Conditions.
Do not expose the instrument to
temperature extremes. For proper operation, ambient temperatures should remain between 15°-40°C (59°-104°F). Performance may be adversely affected if temperatures fluctuate above or below this range. Storage temperature limits are broader (see
Caution: Sodium Hypochlorite.
Storing the ELx50 in Chapter 4).
Do not expose any part of the
instrument to the recommended diluted sodium hypochlorite solution (bleach) for more than 20 minutes. Prolonged contact may damage the instrument surfaces. Be certain to rinse and thoroughly wipe all surfaces.
Caution: Chemical Compatibility - Washers.
Some chemicals may
cause irreparable damage to washers. The following chemicals have been deemed safe for use in washers: buffer solutions (such as PBS), saline, surfactants, deionized water, 70% ethyl, isopropyl, or methyl alcohol, 40% formaldehyde, and 20% sodium hydroxide. Never use acetic acid, DMSO, or organic solvents. Other chemicals may cause severe damage to the instrument. Contact BioTek prior to using any other chemicals. Refer to
Appendix C, Chemical Compatibility.
Caution: Washers and Wash Buffer Solution.
Although many
precautions have been taken to ensure that the instrument is as corrosion­proof as possible, the washer is not sealed and liquids can seep into sensitive components. Make sure that any spilled wash buffer solution is wiped off the washer. Prolonged exposure to salt solution may corrode parts of the carrier, movement rail, springs, and other hardware.
Caution: Bovine Serum Albumin.
Solutions containing proteins, such as bovine serum albumin (BSA), will compromise the washer’s performance over time unless a strict maintenance protocol is adhered to. See
Maintenance and Performance Verification (IQ/OQ/PQ) for cleaning
instructions regarding BSA.
Caution: Warranty.
may
void the warranty. See Chapter 4.
Caution: Disposal.
This instrument contains printed circuit boards and
Failure to follow preventive maintenance protocols
Chapter 4,
wiring with lead solder. Dispose of the instrument according to Directive
2002/96/EC, “on waste electrical and electronic equipment (WEEE).”
BioTek Instruments, Inc.
Hazards and Precautions | xvii
Based on the testing described below and information contained herein, this instrument bears the CE mark.

Directive 2004/108/EC: Electromagnetic Compatibility

Emissions - CLASS A
EN 50081-1 and IEC 61326-1 EN 55022 Class A
Immunity
EN 50082-1 and IEC 61326-1 IEC 1000-4-2 Electrostatic Discharge IEC 1000-4-3 Radiated EM Fields IEC 1000-4-4 Electrical Fast Transient/Burst IEC 1000-4-5 Surge Immunity EN 61000-4-6 Conducted Disturbances EN 61000-4-11 Voltage Dips, Short Interruptions and Variations

Directive 73/23/EEC Low Voltage

EN 61010-1: “Safety requirement for electrical equipment for measurement, control
and laboratory use. Part 1, General requirements.”
Directive 2002/96/EC: Waste Electrical and Electronic Equipment
Disposal Notice
This instrument contains printed circuit boards and wiring with lead solder. Dispose of the instrument according to Directive 2002/96/EC, “on waste electrical and electronic equipment (WEEE).”

Directive 98/79/EC: In Vitro Diagnostics (some models)

Product registration with competent authorities
Traceability to the U.S. National Institute of Standards and Technology (NIST):
Dispense precision and average residual volume is traceable to NIST.
Specific data for a particular serial number is available upon request from BioTek Instruments. See page ix for contact information.
ELx50 Operator's Manual
xviii | Preface

Electromagnetic Interference and Susceptibility

USA FCC CLASS A

Warning: Changes or modifications to this unit not expressly approved by the
manufacturer could
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. Like all similar equipment, this equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause interference, in which case the user will be required to correct the interference at his own expense.

Canadian Department of Communications Class A

void the user's authority to operate the equipment.
This digital apparatus does not exceed Class A limits for radio emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.
Le present appareil numerique n'met pas du bruits radioelectriques depassant les limites applicables aux appareils numerique de la Class A prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.

User Safety

This device has been type tested by an independent laboratory and found to meet the requirements of the following:

North America

Canadian Standards Association CAN/CSA C22 .2 No . 61010-1-04
“Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, Part 1: General Requirements.”
Underwriters Laboratories UL 61010-1:2004
“Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, Part 1: General Requirements.”

International

EN 61010-1
“Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, Part 1: General Requirements.”
BioTek Instruments, Inc.

Safety Symbols

Safety Symbols | xix
Alternating current
Courant alternatif Wechselstrom Corriente alterna Corrente alternata
Direct current
Courant continu Gleichstrom Corriente continua Corrente continua
Both direct and alternating current
Courant continu et courant alternatif Gleich - und Wechselstrom Corriente continua y corriente alterna Corrente continua e corrente alternata
Earth ground terminal
Borne de terre Erde (Betriebserde) Borne de tierra Terra (di funzionamento)
Protective conductor terminal
Borne de terre de protection Schutzleiteranschluss Borne de tierra de protección Terra di protezione
On (Supply)
Marche (alimentation) Ein (Verbindung mit dem Netz) Conectado Chiuso
Off (Supply)
Arrêt (alimentation) Aus (Trennung vom Netz) Desconectado Aperto (sconnessione dalla rete di alimentazione)
ELx50 Operator's Manual
xx | Preface
Caution (refer to accompanying documents)
Attention (voir documents d’accompanement) Achtung siehe Begleitpapiere Atención (vease los documentos incluidos) Attenzione, consultare la doc annessa
Warning, risk of electric shock
Attention, risque de choc électrique Gefährliche elektrische Schlag Precaución, riesgo de sacudida eléctrica Attenzione, rischio di scossa elettrica
Warning, risk of crushing or pinching
Attention, risque d’écrasement et pincement Warnen, Gefahr des Zerquetschens und Klemmen Precaución, riesgo del machacamiento y sejeción Attenzione, rischio di schiacciare ed intrappolarsi
Warning, hot surface
Attention, surface chaude Warnen, heiße Oberfläche Precaución, superficie caliente Attenzione, superficie calda
Consult instructions for use
Consulter la notice d’emploi Gebrauchsanweisung beachten Consultar las instrucciones de uso Consultare le istruzioni per uso
In vitro diagnostic medical device
Dispositif médical de diagnostic in vitro Medizinisches In-Vitro-Diagnostikum Dispositivo médico de diagnóstico in vitro Dispositivo medico diagnostico in vitro
Separate collection for electrical and electronic equipment
Les équipements électriques et électroniques font l’objet d’une collecte sélective Getrennte Sammlung von Elektro- und Elektronikgeräten Recogida selectiva de aparatos eléctricos y electrónicos Raccolta separata delle apparecchiature elettriche ed elettroniche
BioTek Instruments, Inc.
Chapter 1
Introduction
This chapter introduces the ELx50™ Microplate Strip Washer, and describes its hardware and software features and technical specifications. Instructions on how to contact BioTek for Product Support & Service are included on page 12.
Introducing the ELx50 Microplate Strip Washer ............................. 2
ELx50 Washer Variations ........................................................... 3
Manifold Variations............................................................... 3
Patented Dual-Manifold Design............................................ 4
Carrier Variations ................................................................. 5
Software Variations .............................................................. 5
Hardware Features.................................................................... 7
Accessories Included ................................................................. 8
Optional Accessories ................................................................. 9
Specifications..........................................................................10
Microplates.........................................................................10
Electrical............................................................................10
Physical .............................................................................10
Environmental ....................................................................10
Hardware...........................................................................10
Performance Specifications ...................................................11
Product Support & Service ........................................................12
Contacting the Technical Assistance Center.............................12
Returning Instruments for Service/Repair ...............................12
2 | Chapter 1: Introduction

Introducing the ELx50 Microplate Strip Washer

Fast, versatile, and easy to use, the ELx50™ is a user-programmable, fully automated microplate strip washer. Its key features include the following:
The precision syringe pump with its long-lasting seal ensures precise fluid delivery, as well as reproducibility from wash to wash.
Programmable dispense volumes, flow, and height, and aspiration rates and depths provide for a wide range of washing capabilities, from gentle washing for cellular assays to vigorous washing for ELISA™.
The optional bottom washing routine can be applied to lower the background absorbance. The optional crosswise aspiration routine can be applied to reduce residual volumes.
The ELx50 can be used to wash all microplate-based assays, including ELISA, fluorescence, chemiluminescence, RIA, DNA probes, and cellular assays.
The intuitive menu-driven software allows you to create and store up to 75 washer programs. When you are ready to run a program, simply select the program name and follow the screen prompts. The ELx50 will then process the plate according to the program parameters.
All ELx50 models support Wash, Prime, Dispense, and Aspirate programs. Some models also support Soak and Link programs.
Several pre-defined programs are provided to simplify preventative maintenance, which should be performed regularly to ensure optimum washer performance.
All ELx50 models can be used to wash standard 96-well microplates, and some models are also equipped to wash standard 384-well microplates.
“V” versions of the ELx50 feature automatic wash buffer switching with three valves.
The Liquid Level Alert™ option allows users the convenience of continuous monitoring for both supply and waste bottles. At the beginning and end of a wash protocol, the liquid level is verified to ensure sufficient wash buffer remains in the designated dispense bottle to complete a microplate wash. Sufficient storage capacity in the waste bottle is also verified. Each Liquid Level Alert kit includes a quantity of supply and waste bottles with level-sensing capability. Up to three different supply bottles can be connected to the washer through the Liquid Level Alert Select Box.
An aspiration carrier is provided with the ELx50/8FMW model for bottom aspiration of filter-bottom microplates. A vent port on the carrier and two selectable vent plugs for altering the diameter of the port provide three vacuum levels: low, medium, and high. Plates with filter pore sizes from 0.45 µm to 1.2 µm are supported.
BioTek Instruments, Inc.
ELx50 Washer Variations | 3

ELx50 Washer Variations

There are several different ELx50™ washer models available: the ELx50/8, ELx50/12, ELx50/16, and ELx50/8FMW.
Each washer comes with one of four possible washer manifolds (8-, 8s-, 12-, or 16-channel positioned above the microplates), and “V” version washers include automatic buffer switching with three valves. All models support the Liquid Level Alert™ option.
The washer manifold, carrier, and software variations are described on the next few pages. For additional information, contact BioTek Instruments (see page 12).

Manifold Variations

The manifold is the washer component positioned above the microplate that delivers fluid to, and removes it from, the microwells. Each ELx50 washer is equipped with a manifold containing 8, 12, or 16 sets of aspirate and dispense tubes, or “channels.” The following table shows the washing capabilities of each manifold:
Product Support & Service,
With this manifold: You can wash:
8-channel 8-well strips, 96-well plates
8s-channel 8-well strips, 96-well plates
12-channel 12-well strips, 96-well plates
16-channel 8-well strips, 96-well plates, 384-well plates
The ELx50 supports the washing of standard flat, round, and ‘V’ bottom microwells; the ELx50/8FMW model also supports bottom aspiration of filter-bottom plates.
The ELx50 can be reconfigured to support a different manifold. See
ELx50 Manifold Variations for more information.
The 8s-channel manifold has shorter dispense tubes for special
applications.
The 16-channel manifold uses two aspirate tubes for each well when
used with 8-well strips and 96-well plates. For these formats, it may be difficult for the tubes to reach the very bottom of round or ‘V’ bottom wells, possibly leading to higher residuals.
The ELx50/8FMW model does not support the 16-channel manifold.
Appendix B,
ELx50 Operator's Manual
4 | Chapter 1: Introduction
Patented Dual-Manifold Design
The patented Dual-Action™ 16-channel manifold has 16 sets of dispense and aspirate tubes arranged in a fixed horizontal position relative to each other but located in two separate manifolds (see independently of each other on the vertical axis. This dual-manifold design overcomes the problem of fitting both a dispense and an aspirate tube into the much smaller 384-well at the same time, yet it allows for overfill washing of the smaller 384 wells. The dispense tubes are held above the plate when the dispense manifold reaches a mechanical stop, while the aspirate tubes are able to continue descending into the wells.
Figure 1 below). The two manifolds move
Dispense
manifold
Figure 1: Patented Design of the 16-Channel Manifold
Tubes are positioned for overfill
washing
Aspirate manifold
Tubes are positioned
BioTek Instruments, Inc.

Carrier Variations

The carrier is the washer component that transports microplates and positions the wells underneath the manifold tubes. There are three possible carrier types, and their usage depends on the manifold type installed and the microplate type being used:
Microplate carrier that supports 8-, 8s-, and 12-channel manifolds and solid-bottom plates.
Microplate carrier that supports 16-, 8-, and 8s-channel manifolds and solid-bottom plates.
“Aspiration carrier” that supports 8- and 8s-channel manifolds and 96-well filter-bottom plates. This carrier is used on ELx50/8FMW model only, and aspirates fluid from below through the filters at the bottom of the wells.
The basecode software onboard the ELx50/8FMW has been pre-configured to use either the microplate carrier or the aspiration carrier. The aspirate-only program parameters ASPIRATE TYPE and BOT ASPIRATE TIME only appear if the washer model is the ELx50/8FMW, and the manifold is configured as either 8- or 8s-channel.
ELx50 Washer Variations | 5
the microplates, so that fluid is drawn down

Software Variations

The ELx50™ washer is operated by onboard software, controllable through the washer’s keypad. This onboard software, referred to as the “basecode,” has an identifying
Your washer is installed with one of three possible ELx50 basecode part numbers: 4070230, 4070261, or 4070201. Each part number in turn has an identifying
number.
be asked for the part number and version of the basecode currently residing on your washer. See information from the washer.
The
4070230 basecode supports:
Compatibility with the 8-, 8s-, 12, and 16-channel manifolds. The 16-channel
An easy to use, menu-driven interface.
Ability to create Wash, Prime, Dispense, Aspirate, Soak, and Link programs for
Storage of up to 75 washer programs.
User-definable washer program names, for rapid recall at program run time.
part number.
If you need to contact BioTek Instruments for technical assistance, you will
Product Support & Service, page 12, for instructions for retrieving this
manifold supports both 96- and 384-well plate washing.
automated microplate washing.
version
Configurable program parameters such as variable soaking, multispeed shaking, bottom washing, and crosswise aspiration.
Pre-defined washer programs that can be copied and used as the basis for new programs.
ELx50 Operator's Manual
6 | Chapter 1: Introduction
Pre-defined maintenance programs, including AutoPrime, used to keep the manifold tubes moist and free from clogging.
Support for the following languages: English, French, German, Italian, and Spanish.
Note: Contact BioTek for information on changing to a different
language.
Compatibility with the ELx50/8FMW washer’s aspiration carrier, for bottom aspiration of 96-well filter-bottom plates. Note: The 16-channel manifold cannot be used with the aspiration carrier.
Compatibility with the Liquid Level Alert™ option.
4070261 basecode supports the above features, but it is not compatible with the
The Liquid Level Alert option and does not support the 16-channel manifold with the ELx50/8FMW washer’s aspiration carrier.
The
4070201 basecode is not compatible with the 16-channel manifold, the Liquid
Level Alert option, or the ELx50/8FMW washer’s bottom aspiration carrier. This basecode does not provide the ability to create Soak or Link programs.
BioTek Instruments, Inc.

Hardware Features

2-line x 24-character LCD display.
Membrane keypad with 25 alphanumeric keys.
Washes:
96-well microplates with 0.355” / 9 mm well centers 384-well microplates with 0.177” / 4.5 mm well centers (washer
model-dependent)
96-well filter-bottom microplates (ELx50™/8FMW model only) 1 x 8 or 1 x 12 microwell strips
Crosswise aspiration for optimizing washing performance.
External 24-volt power supply.
One serial RS-232 COM port (25-pin male connector).
Hardware Features | 7
Supply and waste systems appropriate for the model/purchased options.
Internal positive displacement pump provides controllable flow rates and volumes
to make washing cellular assays and immunoassays equally convenient. Settings are adjustable via the onboard software, for low to high velocity dispensing.
Internal vacuum pump aspirates liquid from the microwells into the waste collection vacuum vessel.
Stepper motors provide accurate and repeatable carrier and manifold positioning.
Accommodates 1 x 8, 1 x 12, or 1 x 16 manifolds. See
Variations
for more information.
Appendix B, ELx50 Manifold
Flat, round and ‘V’ bottomed strips and plates are washed.
Carrier and manifold are easily removed for cleaning.
Priming/soaking trough built into the carrier.
Five shaking speeds for more intense washing.
Programmable aspiration depth: Ensures that the tubes do not touch the well
bottom, allowing the handling of sensitive cell assays.
ELx50/8FMW model: one vent port (0.047” in diameter) on the aspiration carrier and two selectable vent plugs (with 0.032” and 0.020” diameter holes) for varying the amount of vacuum used with the aspiration carrier.
Mist shield protects the microplate from contaminants.
ELx50 Operator's Manual
8 | Chapter 1: Introduction

Accessories Included

24 VDC power supply (PN 61062)
Power cord (part number varies according to country of use)
8-, 8s-, 12-, or 16-channel manifold
Microplate carrier (specific to manifold type)
Aspiration carrier (ELx50™/8FMW model only) with two vent plugs:
One plug with 0.032” diameter hole (PN 4072100) One plug with 0.020” diameter hole (PN 4072099)
Mist shield (PN 4070517)
Two 2-liter supply bottles (three with “V” version washers) (PN 4070515)
One 2-liter waste bottle (PN 48140)
Waste tubing set:
All models except ELx50/8FMW (PN 4070511) ELx50/8FMW model only (PN 4073002)
Supply tubing set (PN 4070510)
Optional in-line vacuum filter (PN 48146)
Optional vacuum pump muffler (PN 4073009) for ELx50 washers that are
equipped with the new vacuum pump (washers manufactured after January 2008)
Stylus maintenance kit (PN 4070523)
Operator’s Manual (PN 4071000)
Packing instructions (PN 4071015)
Set of shipping materials (PN 4073001)
Shipping document (PN 94075) that includes a Warranty Statement and Certificate
of Compliance and Calibration
Declaration of Conformity (PN 4071006 for clinical models or PN 4071034 for non-clinical models)
Part numbers are subject to change over time. Please contact BioTek
Customer Care if you have any questions.
BioTek Instruments, Inc.
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