Awareness Technology ChemWell-T 4600 Series User manual

4600 SERIES
CHEMISTRY ANALYZER
Service Manual
©2009 Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual
is restricted for use by factory authorized personnel and is to be used for the sole purpose of providing routine
instrument maintenance and repair service. No part of this manual may be copied or redistributed without the
express consent of Awareness Technology, Inc. There is not transfer of technology, copyright, trade name, patent,
trade secret, or other proprietary right given or implied. Doc. 4600 Rev. A 11/2011

TABLE OF CONTENTS
1. INTRODUCTION.......................................................................................................1
1.1 ChemWell-T........................................................................................................................................................1
1.2 Warnings and Precautions.................................................................................................................................2
1.2.1 Intended Use.................................................................................................................................................2
1.2.2 General Safety Summary..............................................................................................................................3
1.2.3 To Avoid Fire or Personal Injury..................................................................................................................3
1.2.4 Safety Terms and Symbols...........................................................................................................................4
1.3 Layout..................................................................................................................................................................5
1.3.1 Instrument Parts and Controls.......................................................................................................................7
1.4 Technical Specifications...................................................................................................................................28
2. PRINCIPLES OF OPERATION...............................................................................30
2.1 Electronic Hardware Description ...................................................................................................................30
2.1.1 Master Controller (eZ80) PCB....................................................................................................................30
2.1.2 Motor Controller PCB ................................................................................................................................33
2.1.3 Photometer PCB .........................................................................................................................................36
2.1.4 Diluter PCB ................................................................................................................................................38
2.1.5 PCB Light Diagnostic Guide......................................................................................................................39
2.2 System Communication Description...............................................................................................................46
2.2.1 System Protocol Description ......................................................................................................................46
2.2.2 Slave Programming ....................................................................................................................................46
2.3 Power Subsystem..............................................................................................................................................47
2.4 Computer to ChemWell-T Communication...................................................................................................53
2.4.1 Firmware versus Software..........................................................................................................................53
2.5 Motion Control.................................................................................................................................................53
2.5.1 Mixer ..........................................................................................................................................................53
2.5.2 Probe X.......................................................................................................................................................53
2.5.3 Probe Z .......................................................................................................................................................54
2.6 Syringe Pump....................................................................................................................................................55
2.7 Photometer........................................................................................................................................................55
2.8 Computer Connections ....................................................................................................................................56
2.9 Computer Software Interface..........................................................................................................................56
2.10 Instrument Routines.......................................................................................................................................56

3. SERVICE PROCEDURES ......................................................................................57
3.1 Enclosure...........................................................................................................................................................57
3.1.1 Enclosure Removal Procedures ..................................................................................................................58
3.1.2 Removal of Cuvette Cover Assembly (part #994626SP) and Syringe Diluter Cover (part #189637SP) ...58
3.1.3 Removal and Re-installation of Top (needed to remove the Shield)..........................................................58
3.1.4 Removal and Re-installation of the Shield Assembly (part #994625SP)....................................................59
3.1.5 Removal and Re-installation of Cover........................................................................................................60
3.1.6 Removal and Re-installation of Base..........................................................................................................64
3.1.7 Troubleshooting Guide for Enclosure.........................................................................................................69
3.2 Photometer........................................................................................................................................................70
3.2.1 Motor, Photometer (part #994089SP).........................................................................................................71
3.2.2 O-ring, Photometer (part #132059SP)........................................................................................................74
3.3.3 Photometer Board (part #995574SP)..........................................................................................................77
3.2.4 Photometer Lamp (part #994615SP) ..........................................................................................................79
3.2.5 Push nut, Photometer (part #125100SP).....................................................................................................81
3.2.6 Thumbnut, Photometer (part #189621SP)..................................................................................................81
3.2.7 Troubleshooting Guide for Photometer ......................................................................................................82
3.2.8 Photometer Command List.........................................................................................................................83
3.2.9 Photometer Error Messages........................................................................................................................84
3.3 Filter Wheel.......................................................................................................................................................85
3.3.1 Filter Label .................................................................................................................................................85
3.3.2 Photometer Filter Replacement / Addition of New Filter...........................................................................86
3.4 Cuvette Mover..................................................................................................................................................93
3.4.1 Motor (part #994638SP).............................................................................................................................94
3.4.2 O-Ring Belt Cuvette (part #132060SP)......................................................................................................97
3.4.3 Encoder Board (part #995573SP)...............................................................................................................99
3.4.4 V Mover Motor Controller Board (part #994632SP)................................................................................102
3.4.5 Thermistor (part #995564TSP).................................................................................................................103
3.4.6 Opto Right Angle (part #995571SP).........................................................................................................105
3.4.7 Cuvette Cover (part #994626SP)..............................................................................................................108
3.4.8 Troubleshooting Guide for Cuvette Mover...............................................................................................108
3.4.9 Cuvette Mover Command List .................................................................................................................109
3.4.10 Cuvette Mover Error Messages ..............................................................................................................110
3.5 Diluter..............................................................................................................................................................111
3.5.1 Motor (part #105102SP-46)......................................................................................................................112
3.5.2 Belt, small, Diluter (part #132048SP).......................................................................................................113
3.5.3 Valve, Diluter (part #105196SP) ..............................................................................................................113
3.5.4 Diluter Board (part #995575SP)...............................................................................................................115
3.5.5 24VDC Supply Board (part #995578SP)..................................................................................................116
3.5.6 Syringe Cover Diluter (part #189637SP)..................................................................................................117
3.5.7 Syringe, Diluter (part #105189SP) ...........................................................................................................117
3.5.8 O-ring & Plunger (part #046005SP).........................................................................................................117
3.5.9 Manifold (part #046007SP) ......................................................................................................................118
3.5.10 Removing Diluter from the Chassis........................................................................................................118
3.5.11 Diluter Troubleshooting Guide...............................................................................................................119
3.5.12 Diluter Command List............................................................................................................................120
3.5.13 Diluter Error Messages...........................................................................................................................121

3.6 Probe X............................................................................................................................................................122
3.6.1 Black Belt (part #132048SP)....................................................................................................................123
3.6.2 Motor with Encoder (part #994618SP).....................................................................................................124
3.6.3 Yellow Belt (part #132049SP)..................................................................................................................125
3.6.4 Probe X Interface Board (part #995569SP)..............................................................................................127
3.6.5 Probe X Troubleshooting..........................................................................................................................128
3.6.6 Probe X Error Messages...........................................................................................................................129
3.6.7 Probe X Command List ............................................................................................................................131
3.7 Probe Z............................................................................................................................................................132
3.7.1 Motor, Mixer (part #105061SP-46)..........................................................................................................135
3.7.2 Motor, Probe Z (part #994369SP) ............................................................................................................137
3.7.3 Belt, Mixer (part #132081SP)...................................................................................................................139
3.7.4 Belt, Probe Z (part #132080SP)................................................................................................................140
3.7.5 Probe Z Fluid Sense Wire (part #993293SP)............................................................................................142
3.7.6 Probe Tip Assembly (Part # 994617SP)...................................................................................................142
3.7.7 Counterweight Assembly (Part # 994622SP) ...........................................................................................145
3.7.8 Mixer Assembly (Part # 994620SP).........................................................................................................145
3.7.9 Spindle Bearing Assembly (Part # 994621SP).........................................................................................147
3.7.10 Motor Controller Z Mover (Part # 994636SP)........................................................................................148
3.7.11 Optical Fluid Sensor (Part # 995576SP).................................................................................................150
3.7.12 Troubleshooting Guide for Probe Z........................................................................................................152
3.7.13 Probe Z Error Messages..........................................................................................................................154
3.7.14 Probe Z Command List...........................................................................................................................156
3.8 Rack Mover.....................................................................................................................................................158
3.8.1 Motor (part #994640SP)...........................................................................................................................159
3.8.2 O-ring Rack (part #132060SP) .................................................................................................................159
3.8.3 Encoder Board (part #995573SP).............................................................................................................161
3.8.4 X Mover Motor Controller Board (part #994633SP)................................................................................162
3.8.5 Opto Right Angle (part #995571SP).........................................................................................................163
3.8.6 Cooling Assembly (part #994344SP) and Graphite Sheet (part #135032SP)...........................................164
3.8.7 Fan (part #104507SP)...............................................................................................................................165
3.8.8 Troubleshooting Guide for Rack Mover...................................................................................................166
3.8.9 Rack Mover Command List......................................................................................................................167
3.8.10 Rack Mover Error Messages...................................................................................................................167
3.9 Shuttle..............................................................................................................................................................169
3.9.1 Motor (part #994641SP)...........................................................................................................................170
3.9.2 O-ring Shuttle (part #132062SP)..............................................................................................................171
3.9.3 Encoder Board (part #995573SP).............................................................................................................171
3.9.4 Opto Straight (part #995568SP)................................................................................................................172
3.9.5 V Mover Motor Controller Board (part #994632SP)................................................................................172
3.9.6 Troubleshooting Guide for Shuttle ...........................................................................................................173
3.9.7 Error Messages for Shuttle .......................................................................................................................174
3.9.8 Shuttle Command List..............................................................................................................................176
3.10 Chassis...........................................................................................................................................................177
3.10.1 Power Supply (part #101110SP).............................................................................................................179
3.10.2 Tubing for Serial Number 330 and below (part #135242SP) .................................................................181
3.10.3 Barb, Pipe Fitting for Serial Number 330 and below (part #137097SP) ................................................183
3.10.4 Luer, Female (part #137102SP)..............................................................................................................185
3.10.5 Male Nut (part #994651SP)....................................................................................................................186
3.10.6 Fuse (part #102015SP)............................................................................................................................187
3.10.7 Cable, USB 6’ (part #104455SP)............................................................................................................187

3.10.8 Cable Assembly, RS1, Ez80, Vmover (part #104047SP).......................................................................187
3.10.9 Cable Assembly, RS2, Vmover, Photometer, Xmover (part #104048SP)..............................................187
3.10.10 Bottle, 250ml (part #187146SP)...........................................................................................................187
3.10.11 Bottles and Drain Tubing Kit (part #994335).......................................................................................187
3.10.12 Fuse Board (part #994631SP)...............................................................................................................188
3.10.13 Motor Controller, X Mover (part #994633SP) .....................................................................................188
3.10.14 Main Board Ez80 (part #994630SP).....................................................................................................189
3.10.15 Cooler Board (part #995577SP)............................................................................................................189
3.10.16 Motor Controller, V mover (part #994632SP)......................................................................................192
3.10.17 Power Cord (US = 137521 & European = 137221)..............................................................................193
3.10.18 Fan, Chassis (part #104508SP).............................................................................................................193
4. SUB-ASSEMBLY REMOVAL FROM THE CHASSIS ..........................................195
4.1 Removal of Probe X and Probe Z Assembly................................................................................................196
4.2 Removal of Photometer..................................................................................................................................197
4.3 Removal of Rack Mover.................................................................................................................................200
4.4 Removal of Cuvette Mover............................................................................................................................201
4.5 Removal of Wash Cup....................................................................................................................................203
4.6 Removal of Shuttle .........................................................................................................................................204
4.7 Removal of Diluter .........................................................................................................................................205
4.8 Troubleshooting Guide for Chassis...............................................................................................................206
4.9 Chassis Command List...................................................................................................................................207
5. PHOTOMETER CALIBRATION VERIFICATION .................................................209
5.1 Photometer Calibration Verification Preparation.......................................................................................209
5.2 4600 Photometer Reference Kit #046034......................................................................................................210
6. ALIGNMENT.........................................................................................................212
6.1 Probe Vs. Wash Cup ......................................................................................................................................212
6.1.1 Using the Alignment Window..................................................................................................................212
6.2 Probe vs. Rack Mover....................................................................................................................................215
6.3 Probe vs. Cuvettes ..........................................................................................................................................216
6.4 Photometer vs. Cuvettes.................................................................................................................................216
7. CONTACT INFORMATION...................................................................................217

APPENDIX A – FUNCTIONAL/WIRING BLOCK DIAGRAM...................................218
APPENDIX B – CHEMWELL-T COMMAND LIST....................................................219
APPENDIX C – REPLACEMENT PARTS................................................................224

ChemWell®-TProject 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
1
1. INTRODUCTION
1.1 ChemWell-T
ChemWell®-T is a computer controlled instrument system, capable of automating any or all stages of
assay processing that involve these functions:
fluid handling...............aspirating and dispensing from 2µL to 500µL
incubating....................cuvette well 37°C, or ambient
reagent cooling………..cools 9° to 12° C below ambient
mixing..........................on board oscillating (programmable speed)
timing...........................from 1 sec to 24 hours
optical reading.............UV/Visible range
calculating ...................using numerous preprogrammed equations
data storage ................unlimited capacity
reporting......................with many options and customization to choose from
The system allows you to define and program an unlimited number of customized protocols by
selecting displayed menu options from a Microsoft Windows®software program. This open system
can be programmed to perform any of the colorimetric biochemistry assays or turbidimetric assays
that can be handled using the volumes, temperatures, and wavelengths provided. It has many
possible applications in clinical and veterinarian testing, environmental testing, food and water
analysis, life science research, and may also be used in production processes involving micro
volume dispensing, diluting, incubating, reading, and so on.
Reactions occur in plastic cuvettes instead of sample cups or a carousel. Cuvettes are commercially
available from many sources. Place your reagent bottles and sample tubes into the removable,
adjustable instrument racks. Then program the instrument to pick up from one place, dispense to
another, wash the probe, read the cuvettes, incubate, mix, or whatever you want it to do.
ChemWell®-T is not dedicated for use with any particular chemical reaction, method, or
manufacturer. This gives you many advantages including great flexibility in how you use it. Your lab
decides how to set up your racks and plates, which reagents you will use, how many controls you
will run, how many different applications you want on it, and so on. This also means that the
instrument must first be programmed before each new application.
To assure the quality of clinical information, each new setup must be validated before reporting
specimen results. In some cases the programming, optimization, and validation may have already
been done. Before applying any new clinical reagent system, check first with the diagnostic reagent
manufacturer for specific instructions, validation information, and application tips. You are also
advised to run specimens having known concentrations to verify your instrument setup parameters.
After that, programs can easily be recalled for review, use, change, or deletion by you. You decide
everything including how manual and how automatic you want your system to be.
Awareness Technology, Inc. developed ChemWell®-T instruments and software as tools for the
modern global laboratory. The power and freedom to apply ChemWell®-T, is completely yours.

ChemWell®-T Project 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
2
1.2 Warnings and Precautions
WARNING
For in-vitro diagnostics use.
1.2.1 Intended Use
The ChemWell®-T is designed for use in processing general chemistry and turbidimetric
assays. This general purpose instrument is intended to be used by laboratory professionals
who are capable of selecting the appropriate features and options for each specific clinical
application.
•Some diagnostic assays utilize materials which are potentially biohazardous.
•Always wear protective apparel and eye protection while using this instrument.
•Always operate the instrument with the aerosol shield lowered.
•Do not use the instrument in a manner not specified by the manual, or the
protection provided by the instrument may be impaired.
•Probe tips are sharp and may cause bodily injury. Do not place hands or fingers
under the probe while instrument is in operation. Always set the power switch to
OFF (0) before working on the probe. Never touch the probe while the instrument is
operating.
WARNING
The probe performs a self-clean periodically
while the probe is idle. Keep hands away
from the probe at all times when the
instrument is ON (1).
DANGER: Pinch points, sharp points, and
moving parts - mechanisms may operate
without warning.
•Solvents such as acetone or thinner will damage the instrument. Do not use
solvents to clean the unit. Avoid abrasive cleaners; the aerosol shield is liquid-
resistant, but is easily scratched.
WARNING
The operation of ChemWell®-T may involve the use of biohazardous
material. Refer to the Owner’s Manual for biohazard warnings.
!
!
DANGER
!
6
!

ChemWell®-TProject 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
3
•The exterior of the instrument may be cleaned with a soft cloth using plain water. If
needed, a mild all-purpose or non-abrasive cleaner may be used. A 10% solution of
chlorine bleach (chlorine bleach= 5.25% Sodium Hypochlorite) or 70% isopropyl
alcohol may be safely used as a disinfectant. Take special care not to spill liquid
inside the instrument.
Please take time to read this service manual and the operator’s manual carefully before
using the ChemWell®-T instrument. For best results, familiarize yourself with the instrument
and its capabilities before attempting any clinical diagnostic tests. Refer any questions to
your instrument dealer.
Retain the original packing material for future use in the event that the instrument is placed
in storage, shipped to another location, or returned for service. One person can easily lift
unit by placing hands under the side panels and lifting. Instrument weighs 15kg.
ChemWell®-T should be installed on a sturdy, level, surface capable of supporting the
instrument’s weight (15 kg) safely. The instrument should be surrounded by 10 cm (4
inches) clearance on each side, top, front, and back. ChemWell®-T requires no fastening to
the bench top.
1.2.2 General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to this
instrument or any products connected to it. To avoid potential hazards, use this instrument
only as specified.
WARNING
Only qualified personnel should perform service procedures.
Contact your dealer to arrange factory training.
1.2.3 To Avoid Fire or Personal Injury
•Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
•Ground the Product. This product is grounded through the grounding conductor of the
power cord. To avoid electric shock, the grounding conductor must be connected to
earth ground. An optional method is to attach a ground strap from the external
grounding terminal on the rear panel of the instrument to a suitable ground such as to a
grounded pipe or some metal surface to earth ground.
•Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings and
markings on the instrument. Consult this manual for further ratings information before
making connections to the instrument.
•Do Not Operate Without Covers. Do not operate this instrument with covers and panels
removed.
•Use Proper Fuse. Use only the fuse type and rating specified for this instrument.
•Avoid Exposed Circuitry. Do not touch exposed connections and components when
power is present.
•Do Not Operate With Suspected Failures. If you suspect there is damage to this
instrument, have it inspected by a qualified service person.
!

ChemWell®-T Project 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
4
•Provide Proper Ventilation. Refer to the installation instructions for details on installing
the product so it has proper ventilation.
•Do Not Operate in Wet/Damp Conditions.
•Do Not Operate In An Explosive Atmosphere.
•Keep Instrument Surfaces Clean and Dry.
WARNING
The operation of ChemWell®-T may involve the use of biohazardous material.
Refer to your owner’s manual for biohazard warnings.
1.2.4 Safety Terms and Symbols
The following terms appear in this manual:
DANGER indicates an injury immediately accessible as you read the marking.
WARNING indicates an injury hazard not immediately accessible as you read the marking.
CAUTION indicates a hazard to property including the product.
BIOHAZARD indicates biological agents that can cause disease in humans. Lab workers
handling potentially infectious materials must use universal precautions to reduce the risk
of exposure to these agents.
These symbols may appear on the product:
WARNING
Risk of Shock Protective Ground (Earth) Terminal CAUTION Refer To Manual BIOHAZARD Risk of Infection
FUSE: For continued protection against risk of fire, replace only
with fuse of the specified type and current ratings. Disconnect
equipment from supply before replacing fuse.
DANGER: Pinch points, sharp points, and moving parts -
mechanisms may operate without warning.
!
DANGER
!
6
!

ChemWell®-TProject 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
5
1.3 Layout
Refer to the figures on the following pages for illustrations of the ChemWell®-T and its
components.
ChemWell®-T Component Figure Number
Instrument Exterior Figure 1.3.1
Instrument Exterior (rear view) Figure 1.3.2a
Instrument Exterior (inverted view) Figure 1.3.2b
Instrument Front View Figure 1.3.3
Note: Aerosol shield installed.
Instrument Chassis Figure 1.3.4
Instrument Interior (top view)
Instrument Interior (front view)
Figure 1.3.5a
Figure 1.3.5b
Sub-assemblies: Figure Number
Cuvette Mover (side view) Figure 1.3.6a
Cuvette Mover (bottom view) Figure 1.3.6b
Rack Mover (back view) Figure 1.3.7a
Rack Mover (inverted view) Figure 1.3.7b
Diluter (side view) Figure 1.3.8
Probe X Mover (back view) Figure 1.3.9
Probe Z Mover
NOTE: Probe X and Z Movers are
combined and are responsible for the
probe movement.
Figure 1.3.10
Shuttle (front view) Figure 1.3.11a
Shuttle (rear view) Figure 1.3.11b
WARNING
Hazardous line voltages are present behind the AC cover and on the
power supplies. Always disconnect the external AC power cable before
servicing the instrument.
!

ChemWell®-T Project 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
6
Layout (Continued)
Sub-assemblies: (Continued) Figure Number
Photometer (front view)
NOTE: Houses the lamps, filters, and is
responsible for photometric readings.
Figure 1.3.12a
Photometer (rear view)
Prime Bottle
Figure 1.3.12b
Figure 1.3.13
Wash Cup
Universal Rack
Figure 1.3.14
Figure 1.3.15
Cuvette Holder Figure 1.3.16

ChemWell®-TProject 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
7
1.3.1 Instrument Parts and Controls
Figure 1.3.1 Instrument Exterior
Figure 1.3.2a Instrument Exterior (rear view)
Top
Shield
Cover
Base
Ground Terminal
USB Connection
Drain Connection
Top (rear view)
Power Connection
Cover (rear view)
Base (rear view)
ON / OFF Switch

ChemWell®-T Project 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
8
Instrument Parts and Controls (Continued)
Figure 1.3.2b Instrument Exterior (bottom view)
CAUTION! DO NOT BLOCK FAN OPENING,
AIR INTAKE
O
R AIR EXHA
US
T
Speaker
Air Exhaust
Air Intake
Photometer
Fan

ChemWell®-TProject 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
9
Instrument Parts and Controls (Continued)
Figure 1.3.3 Instrument Front View – complete with shield
Figure 1.3.3a Cooling in reagent area only; cuvette incubation area pinpointed
500µl Syringe
Cuvette carrier
Cover
Base
Top
Shield
Universal Rack
Prime Bottle
Probe Tip
Cuvettes may
incubate and be
heated to 37.0°C
Reagent cooling only in
positions 1 and 2 via the
self-enclosed Peltier
cooling system
1 2 3 4 5

ChemWell®-T Project 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
10
Instrument Parts and Controls (Continued)
Figure 1.3.4 Instrument Chassis
Circuit boards mounted in housing
Power Supply
V Mover PCB
X-Mover PCB
Cooler PCB
Prime Bottle
Chassis
Ez80 Board
Fuse Board

ChemWell®-TProject 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
11
Instrument Parts and Controls (Continued)
Figure 1.3.5a Instrument Interior (top view) shown out of enclosure and with Probe Z
and Mixer cover removed

ChemWell®-T Project 4600 Service Manual Doc. 4600 Rev. A 11/2011
©Awareness Technology Inc. Unauthorized duplication is strictly prohibited. Information given in this manual is
restricted for use by authorized personnel and is to be used for the sole purpose of providing routine instrument
maintenance and repair services.
12
Instrument Parts and Controls (Continued)
Figure 1.3.5b Instrument Interior (front view)
Sub Assembly
A Probe Z
B Probe X
C Rack Mover
D Photometer
E Wash Cup
F Shuttle
G Diluter/Syringe
H Cuvette Mover (heated)
E
C
A B
H
D
F
G