oxford diffraction KMW3000C Manuale utente
User Manual
KMW3000C
Water Chiller Unit
October 2001
Version 1.1
Oxford Diffraction Limited
20 Nuffield Way, Abingdon
Oxon OX14 1RL UK
Tel: +44 (0)1235 532132
Fax: +44 (0)1235 528005
http://www.oxford-diffraction.com
KMW3000C Version 1
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Important Information
This user manual is intended to help the user operate the KMW3000C water chiller unit
manufactured in Poland by Oxford Diffraction.
Product: KMW3000C
Model Type: X-ray tube / generator
Electrical Ratings: 1/N AC 230 V
50/60 Hz
300 Watts
Before attempting to operate the system, PLEASE READ THE
INSTRUCTIONS.
This product should only be used by persons legally permitted to do so.
If the equipment is used in a manner not specified in the User Manual, the protection provided by
the equipment may be impaired.
Important Health and Safety Notice
When returning components for service or repair it is essential that the item is shipped together with
a signed declaration that the product has not been exposed to any hazardous contamination or that
appropriate decontamination procedures have been carried out so that the product is safe to
handle.
Care has been taken to ensure the information in this manual is accurate and at an appropriate
level. Please inform Oxford Diffraction if you have any suggestions for corrections of improvements
to this manual.
This users' manual has been written according to standard 89/392/EEC and further modifications.
Oxford Diffraction acknowledges all trademarks and registrations.
Copyright 2000 Oxford Diffraction Limited. All rights reserved. No part of this document may be
reproduced or distributed in any form, or by any means, or stored in a database or retrieval system,
without prior written permission of Oxford Diffraction.
CONTENTS
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Contents
1. Health and Safety Information ........................................................1
1.1 General.................................................................................................................................... 1
1.2 Electrical Safety....................................................................................................................... 1
1.2.1 Potential Electrical Hazards ........................................................................................... 1
1.2.2 Recommended Precautions........................................................................................... 2
1.2.3 First Aid .......................................................................................................................... 2
1.3 Mechanical Handling Safety.................................................................................................... 2
1.4 Safe Mechanical Practice........................................................................................................ 3
1.5 Moving parts............................................................................................................................ 3
1.6 Modifications and Service ....................................................................................................... 3
2. Introduction ......................................................................................4
2.1 Scope ...................................................................................................................................... 4
2.2 How To Use This Manual........................................................................................................ 4
2.3 System Description ................................................................................................................. 4
3. Specifications...................................................................................5
3.1 Environment ............................................................................................................................ 5
3.2 Performance Data ................................................................................................................... 5
3.3 Electrical Services ................................................................................................................... 5
3.4 Water Supply........................................................................................................................... 5
4. Technical Description......................................................................6
4.1 Overview ................................................................................................................................. 6
4.2 Operating Principles ................................................................................................................ 6
4.2.1 Tap water circuit............................................................................................................. 6
4.2.2 Closed Circuit................................................................................................................. 7
4.2.3 Control Unit .................................................................................................................... 8
4.3 Interfaces................................................................................................................................. 8
4.3.1 Water Supply.................................................................................................................. 8
4.3.2 Electrical Connections....................................................................................................9
5. Handling, Installation, Storage and Transit Information ............10
5.1 Reception and Handling........................................................................................................ 10
5.1.1 Delivery ........................................................................................................................ 10
5.1.2 Unpacking .................................................................................................................... 10
5.1.3 Weights, Dimensions and Lifting Points....................................................................... 10
5.2 Installation and Setting to Work ............................................................................................ 11
5.2.1 Preparation of Site and Services ................................................................................. 11
5.2.1.1 Environmental Requirements ............................................................................. 11
5.2.1.2 System Layout .................................................................................................... 11
5.2.1.3 Electrical Services............................................................................................... 11
5.2.1.4 Water Supply ...................................................................................................... 11
5.2.2 Setting to Work............................................................................................................. 11
5.2.2.1 Equipment Required ........................................................................................... 12
5.2.2.2 Setting up Procedures ........................................................................................ 12
5.3 Storage............................................................................................................................ 13
6. Operating Instructions ..................................................................14
CONTENTS
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6.1 Warnings and Cautions......................................................................................................... 14
6.2 Controls and Indicators ......................................................................................................... 14
6.3 Switch-on Procedure (Manual).............................................................................................. 14
6.4 Switch-on Procedure (Remote)............................................................................................. 14
7. Maintenance Schedule ..................................................................15
7.1 Introduction............................................................................................................................ 15
7.2 Weekly Maintenance Schedule............................................................................................. 15
8. Maintenance Instructions..............................................................16
8.1 Filling The Reservoir With Water .................................................................................... 16
8.2 Cleaning The Water Filters ............................................................................................. 17
9. Trouble Shooting ...........................................................................18
10. Spares...........................................................................................19
11. Additional Information.................................................................20
11.1 Drawings ............................................................................................................................. 20
12. CE Conformity Notice..................................................................21
HEALTH AND SAFETY INFORMATION
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1. Health and Safety Information
1.1 General
In normal operation the system is designed to operate safely. All users of the KMW3000C water
chiller unit should be aware of potential hazards which exist in and around equipment of this type
and the ways of avoiding possible injury and equipment damage which may result from
inappropriate ways of working. A description of such potential hazards and how to avoid them is
given in this section.
This manual adopts the following convention:
WARNING
Indicates a potential hazard which may result in injury or death
CAUTION
Indicates a potential hazard which may result in damage to equipment
Warning symbols on the equipment have the following meanings:
Protective conductor terminal
Earth (ground) terminal
CAUTION
Risk of electric shock
CAUTION
Refer to accompanying documents
See original manufacturers' manuals for further safety data on third party equipment supplied with
the system. A list of these is given in this manual.
WARNING
Do not take risks. You have a responsibility to ensure the safe
condition and safe operation of equipment.
1.2 Electrical Safety
In normal use the user is protected from the dangers associated with the voltage, current and power
levels used by the equipment. Only suitably qualified personnel should attempt to disconnect,
dismantle or modify the equipment.
1.2.1 Potential Electrical Hazards
The following list is not intended as a complete guide to all the electrical hazards on the system, but
serves to illustrate the range of potential hazards that exist:
•electric shock
•electric burn
HEALTH AND SAFETY INFORMATION
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•fire of electrical origin
•electric arcing
1.2.2 Recommended Precautions
WARNING
All of the electrical equipment supplied as part of the system should
be provided with a protective ground. Do not remove protective
grounds as this may give rise to an electrical safety hazard. It is
vitally important that the system is properly grounded at all times.
Follow local and national electrical regulations and procedures.
Do not remove connectors, disconnect equipment, open safety
covers, dismantle or modify equipment unless you are qualified and
authorised to do so and you are fully conversant with its operation
and potential hazards or have total assurance through your local
electrical permit to work system that the equipment has been made
safe.
Make sure that the mains supply is fused at an appropriate rating and
that it can be isolated locally via a clearly labelled, clearly visible and
easily accessible isolating switch. Isolate the supply before carrying
out any maintenance work.
1.2.3 First Aid
A course in first aid to include methods of artificial respiration is recommended for those whose
work involves equipment which may produce a high voltage.
WARNING
Do not attempt to administer first aid to someone who may have
suffered electric shock until the source of the shock has been
isolated.
Mains voltages are present in the system. These can cause serious
injury or death.
Only personnel qualified and experienced to work with such currents
and voltages should perform service or maintenance work on this
equipment.
1.3 Mechanical Handling Safety
WARNING
Lifting points are provided for safe handling of components and safe
handling practice must be observed to comply with local regulations.
Check that lifting points are used only for the job intended.
The system itself and some components are heavy and require
careful handling. Use safe lifting procedures for heavy items to
prevent possible strain injury.
HEALTH AND SAFETY INFORMATION
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1.4 Safe Mechanical Practice
In normal use personnel are not required to undertake mechanical work. However, servicing or
repair may necessitate access to any part of the system. Only suitably qualified personnel should
attempt to dismantle, modify or repair equipment.
Water connections should be made and tested in accordance with any local and national safety
regulations.
1.5 Moving parts
There are a number of moving parts in the system which are powered by electric motors.
Warning
Injury could result if clothing or body parts become caught in moving
mechanisms.
Keep clothing, hands etc. away from moving mechanisms.
1.6 Modifications and Service
The manufacturer will not be held responsible for the safety, reliability or performance of the
equipment unless assembly operations, extensions, re-adjustments, modifications and repairs are
carried out only by persons authorised by the manufacturer. It should be stressed that those parts of
the equipment which are interchangeable, and which are subject to deterioration during operation,
may significantly affect the safety of the equipment.
INTRODUCTION
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2. Introduction
2.1 Scope
This manual applies to the KMW3000C water chiller unit manufactured by Oxford Diffraction.
2.2 How To Use This Manual
This manual is aimed at operators of the KMW3000C who are trained laboratory technicians and
have been trained to use the KMW3000C by Oxford Diffraction personnel.
This manual is intended to provide operators with a practical guide to the system and its operation.
This is intended to familiarise the operator with how the system works and provide a better
understanding of the system operation.
All personnel who are likely to operate the system or come into contact with any of the system
components should read the SAFETY section of the manual. This provides basic information aimed
at highlighting the safety hazards associated with the equipment.
The purpose of this manual is to:
•explain how to operate the equipment
•explain how to interface to the equipment
•list performance characteristics of the equipment
•describe how the equipment operates
•assist with simple fault finding and maintenance
2.3 System Description
The KMW3000C is a stand-alone chiller unit intended for indoor use. It is designed to be used to
cool X-ray generators and X-ray tubes within a laboratory environment.
The purpose of the KMW3000C is to stabilise the temperature of the cooling water supplied to X-ray
generators and X-ray tubes.
SPECIFICATIONS
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3. Specifications
3.1 Environment
Ambient temperature 10°C to 35°C
Storage temperature 10°C to 40°C
Relative humidity 10 – 95% non – condensing
Location Inside a building
3.2 Performance Data
Cooling power 3000 W (at 12 ºC tap water inlet temperature)
Water flow rate 4.2 l/min
Pressure 0.3 - 0.8 bar adjustable
Temperature stability ±1 ºC
Filter type 10 µm fibber filter
3.3 Electrical Services
Power connection 1/N AC 230V ± 10%, 50/60 Hz
Maximum power consumption 300 W
Maximum mains current 1.2 A
Main fuse 6.3 A
3.4 Water Supply
Reservoir water Optically clear, neutral pH, de-ionised water
Connections Quick-release type designed for pipes of size 10 x 3 mm
External water supply flow rate 0.6 l/min/kW (at 12 ºC tap water inlet temperature)
External water supply pressure 0.5 - 5 bar
TECHNICAL DESCRIPTION
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4. Technical Description
4.1 Overview
The KMW3000C Chiller consists of a metal cabinet containing a water reservoir with heat exchange
coil, and control circuitry.
Controls, indicators and water connections are located on the front panel of the chiller. The
electrical connector is located on the side of the chiller.
Figure 4.1.1 The KMW3000C Chiller
4.2 Operating Principles
4.2.1 Tap water circuit
Tap water from the mains supply passes through a filter on the front of the KMW3000C. The water
then enters the unit through a manual cut-off valve, before passing to the temperature-modulated
valve. The temperature-modulated valve controls the temperature stabilisation in the closed water
circuit, and the consumption of tap water. The tap water then passes through a heat exchanger in
the reservoir before leaving the KMW3000C via a front panel connector.
Indice
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