MKS 141A Series Manuale utente
112905-P1
Rev C, 8/98
MKS Type 141A/142A
Vacuum Pressure
Switch
Copyright © 1998 by MKS Instruments, Inc.
All rights reserved. No part of this work may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying and recording, or by any information
storage or retrieval system, except as may be expressly permitted in writing by MKS Instruments,
Inc.
Printed in the United States of America
Baratron®is a registered trademark of MKS Instruments, Inc., Andover, MA
Swagelok®, VCR®, and VCO®are registered trademarks of Swagelok Marketing Company,
Solon, OH
Inconel®is a registered trademark of Inco Alloys International, Inc., Huntington, WV
Table of Contents
iii
Table of Contents
Pressure Transducer Safety Information...............................................................................1
Symbols Used in This Instruction Manual................................................................1
Symbols Found on the Unit.....................................................................................2
Safety Procedures and Precautions...........................................................................3
Informations relatives à la sécurité pour le transducteur de pression.......................................5
Symboles utilisés dans ce manuel d'utilisation..........................................................5
Symboles apparaissant sur l'unité.............................................................................6
Mesures de sécurité et précautions...........................................................................7
Sicherheitshinweise für den Druckmeßwertwandler..............................................................9
In dieser Betriebsanleitung vorkommende Symbole..................................................9
Erklärung der am Gerät angebrachten Symbole ........................................................10
Sicherheitsvorschriften und Vorsichtsmaßnahmen ....................................................11
Medidas de seguridad del transductor de presión...................................................................13
Símbolos usados en este manual de instrucciones......................................................13
Símbolos hallados en la unidad................................................................................14
Procedimientos y precauciones de seguridad ............................................................15
Chapter One: General Information......................................................................................17
Introduction...........................................................................................................17
How This Manual is Organized ...............................................................................18
Customer Support...................................................................................................18
Chapter Two: Installation...................................................................................................19
How To Unpack the Type 141/142 Unit...................................................................19
Unpacking Checklist...................................................................................19
Product Location and Requirements.........................................................................20
Operating Environmental Requirements.......................................................20
Setup.....................................................................................................................21
Dimensions................................................................................................21
Mounting...................................................................................................23
Table of Contents
iv
Electrical Information.............................................................................................24
Chapter Three: Overview...................................................................................................25
General Information................................................................................................25
Labels....................................................................................................................27
Serial Number Label...................................................................................27
Chapter Four: Operation.....................................................................................................29
General Information................................................................................................29
How To Adjust the Relay Set Point..........................................................................29
How To Activate Fail-Safe Operation......................................................................30
Chapter Five: Maintenance.................................................................................................31
General Information................................................................................................31
How To Clean the Unit ...............................................................................31
Maintenance...........................................................................................................31
Appendix A: Product Specifications....................................................................................33
Electrical Specifications..........................................................................................33
Performance Specifications.....................................................................................33
Physical Specifications...........................................................................................34
Environmental Specifications..................................................................................34
Appendix B: Model Code Explanation................................................................................35
Model Code ...........................................................................................................35
Index.................................................................................................................................37
List of Figures and Tables
v
List of Figures and Tables
Figures
Figure 1: Dimensions of a Type 141 Vacuum Pressure Switch..............................................21
Figure 2: Dimensions of a Type 142 Vacuum Pressure Switch..............................................22
Figure 3: Terminal Block Connections................................................................................24
Figure 4: Type 141/142 Block Diagram...............................................................................26
Figure 5: Serial Number Label............................................................................................27
Tables
Table 1: Definition of Symbols Found on the Unit ...............................................................2
Tableau 2: Définition des symboles apparaissant sur l'unité..................................................6
Tabelle 3: Bedeutung der am Gerät angebrachten Symbole...................................................10
Tabla 4: Definición de los símbolos hallados en la unidad....................................................14
List of Figures and Tables
vi
Pressure Transducer Safety Information Symbols Used in This Instruction Manual
1
Pressure Transducer Safety Information
Symbols Used in This Instruction Manual
Definitions of WARNING, CAUTION, and NOTE messages used throughout the manual.
Warning The WARNING sign denotes a hazard to personnel. It calls
attention to a procedure, practice, condition, or the like,
which, if not correctly performed or adhered to, could result in
injury to personnel.
Caution The CAUTION sign denotes a hazard to equipment. It calls attention
to an operating procedure, practice, or the like, which, if not
correctly performed or adhered to, could result in damage to or
destruction of all or part of the product.
Note The NOTE sign denotes important information. It calls attention to a
procedure, practice, condition, or the like, which is essential to highlight.
Symbols Found on the Unit Pressure Transducer Safety Information
2
Symbols Found on the Unit
The following table describes symbols that may be found on the unit.
Definition of Symbols Found on the Unit
|
On (Supply)
IEC 417, No.5007 Off (Supply)
IEC 417, No.5008 Earth (ground)
IEC 417, No.5017
Protective earth
(ground)
IEC 417, No.5019
Frame or chassis
IEC 417, No.5020 Equipotentiality
IEC 417, No.5021 Direct current
IEC 417, No.5031
Alternating current
IEC 417, No.5032
Both direct and
alternating current
IEC 417, No.5033-a
Class ll equipment
IEC 417, No.5172-a
Three phase
alternating current
IEC 617-2 No.020206
Caution, refer to
accompanying
documents
ISO 3864, No.B.3.1
Caution, risk of
electric shock
ISO 3864, No.B.3.6
Caution, hot surface
IEC 417, No.5041
Table 1: Definition of Symbols Found on the Unit
Pressure Transducer Safety Information Safety Procedures and Precautions
3
Safety Procedures and Precautions
Observe the following general safety precautions during all phases of operation of this
instrument. Failure to comply with these precautions or with specific warnings elsewhere
in this manual violates safety standards of intended use of the instrument and may impair
the protection provided by the equipment. MKS Instruments, Inc. assumes no liability for
the customer’s failure to comply with these requirements.
DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT
Do not install substitute parts or perform any unauthorized modification to the instrument.
Return the instrument to an MKS Calibration and Service Center for service and repair to ensure
that all safety features are maintained.
SERVICE BY QUALIFIED PERSONNEL ONLY
Operating personnel must not attempt component replacement and internal adjustments. Any
service must be made by qualified service personnel only.
USE CAUTION WHEN OPERATING WITH HAZARDOUS MATERIALS
If hazardous materials are used, users must take responsibility to observe the proper safety
precautions, completely purge the instrument when necessary, and ensure that the material used is
compatible with the materials in this product, including any sealing materials.
PURGE THE INSTRUMENT
After installing the unit, or before removing it from a system, purge the unit completely with a
clean, dry gas to eliminate all traces of the previously used flow material.
USE PROPER PROCEDURES WHEN PURGING
This instrument must be purged under a ventilation hood, and gloves must be worn for protection.
DO NOT OPERATE IN AN EXPLOSIVE ENVIRONMENT
To avoid explosion, do not operate this product in an explosive environment unless it has been
specifically certified for such operation.
USE PROPER FITTINGS AND TIGHTENING PROCEDURES
All instrument fittings must be consistent with instrument specifications, and compatible with the
intended use of the instrument. Assemble and tighten fittings according to manufacturer's
directions.
CHECK FOR LEAK-TIGHT FITTINGS
Carefully check all vacuum component connections to ensure leak-tight installation.
Safety Procedures and Precautions Pressure Transducer Safety Information
4
OPERATE AT SAFE INLET PRESSURES
Never operate at pressures higher than the rated maximum pressure (refer to the product
specifications for the maximum allowable pressure).
INSTALL A SUITABLE BURST DISC
When operating from a pressurized gas source, install a suitable burst disc in the vacuum system
to prevent system explosion should the system pressure rise.
KEEP THE UNIT FREE OF CONTAMINANTS
Do not allow contaminants to enter the unit before or during use. Contamination such as dust,
dirt, lint, glass chips, and metal chips may permanently damage the unit or contaminate the
process.
ALLOW PROPER WARM UP TIME FOR TEMPERATURE-CONTROLLED UNITS
Temperature-controlled units will only meet specifications when sufficient time is allowed for the
unit to meet, and stabilize at, the designed operating temperature. Do not zero or calibrate the
unit until the warm up is complete.
Questo manuale è adatto per i seguenti modelli
3
Indice
Lingue:
Altri manuali MKS Interruttore
