CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Meggitt SARoute de Moncor 4

PO Box 16161701 Fribourg

Switzerland

energy@ch.meggitt.comwww.meggittsensing.com/energy

Title page

INSTALLATION MANUAL

Vibration measurement chainsusing

CVxxx or VExxx velocity sensors

This document contains importantinformation about products thatare intended for use in potentiallyexplosive atmospheres.Ex

http://www.meggittsensing.com/energy

ii CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

REVISION RECORD SHEET

Edition Dateof issueWritten by

/modified by Description Signature

1 20.12.2010 P. Ward Original edition in English language. PW

2 11.04.2013 P. Ward

Updated in accordance with the latest Meggitt brand guidelines. Introduced a separate maintenance section (see 7 Maintenance). Ex certificates updated for CV21x (see appendices).

PW

3 22.07.2013 P. Ward

Added the GSI127 galvanic separation unit (5 Installing galvanic separation units) and updated the mechanical diagrams (1 Introduction to CVxxx and VExxx-based vibration measurement chains) and the electrical diagrams (6 Electrical connections). Updated the Ex certificates.

PW

4 06.03.2014 P. Ward

Clarified the permitted installation areas for the GSI122, GSI124 and GSI127.Updated 6 Electrical connections: updated the electrical diagrams in Figure 6-7 and Figure 6-8.Also updated Appendix A: ATEX certifications: updated PTB 01 ATEX 1061 U and KEMA 04 ATEX 1178 X, and added PTB 02 ATEX 1125.Removed all certifications for the GSI124 and GSI127 as not relevant to CV xxx velocity transducer installations.

PW

5 14.04.2014 P. Ward

Updated 6 Electrical connections: updated the electrical diagrams in Figure 6-5 and Figure 6-6, and added a new Figure 6-7.Added the VExxx velocity transducer for low-frequency measurements, including new electrical diagrams in Figure 6-8 and Figure 6-9.Added a note to 5.3 Replacing a GSI124 galvanic separation unit with a GSI127, clarifying that cable lengths might have to be adjusted.Updated Appendix A: ATEX certifications: updated PTB 01 ATEX 1061 U.Updated Appendix B: cCSAus certifications: updated 1560547.

PW

6 02.06.2014 P. Ward

Updated 6 Electrical connections: added a new Figure 6-11 and a new Figure 6-10 for installations on insulated bearings.Note: These changes do not affect any Ex products (that is, equipment suitable for potentially explosive atmospheres).

PW

7 12.09.2014 P. Ward Updated Appendix B: cCSAus certifications: updated 1560547. PW

CVxxx and VExxx installation manual MACV/E iiiEdition 8 - October 2018

8 29.10.2018 Peter Ward

Changed all Vibro-Meter® product names to not use spaces in order to be consistent with the latest product naming convention.Added a statement that Meggitt SA product certifications and warranties are valid only for products purchased directly from Meggitt SA or an authorised distributor (see IMPORTANT NOTICES).Added important safety-related information (see Replacement parts and accessories).Removed most ABA15x industrial housing information (as no longer available – replaced by ABA17x industrial housings).Removed most CV210 velocity transducer, IVC632 signal conditioner, ED109 and ED112 cable assembly and related information (as no longer available – replaced by VE210 velocity transducer measurement chains). Removed most GSI124 galvanic separation unit and GSV14x power supply and safety barrier unit information (as no longer available – replaced by the GSI127 galvanic separation unit).Updated 5 Installing galvanic separation units to clarify that a GS127 should be installed vertically but can be installed right-side-up or upside-down (inverted) (see 5.2.1 Mounting procedure).Updated and reorganised 6 Electrical connections to use the latest electrical diagrams (see Figure 6-1, Figure 6-2, Figure 6-3, Figure 6-4, Figure 6-5 and Figure 6-6).Added information on cleaning a CVxxx and VExxx-based vibration measurement chain (see 7.3 Cleaning).Added end-of-life product disposal information (see 8 End-of-life product disposal).Updated the Energy product return procedure and form to be consistent with the Meggitt Vibro-Meter® website (see 9 Service and support).Updated Appendix A: ATEX certifications:Added LCIE 13 ATEX 3037 X (GSI127).Removed PTB 02 ATEX 1125 (cable stuffing glands).Added LCIE 02 ATEX 0038 U, LCIE 03 ATEX 0033 U, PTB 98 ATEX 3130, PTB 11 ATEX 1007 X, SIRA 10 ATEX 1224 X, SIRA 10 ATEX 1225 X, SEV 15 ATEX 0151 and SEV 15 ATEX 0152 X (cable stuffing glands).Updated Appendix B: cCSAus certifications:Updated cCSAus 1560547 (CV21x).Added cCSAus 70001999 (GSI127).Added Appendix C: IECEx certifications:Added IECEx PTB 08.0003U (JB116 and JB118).Added IECEx LCIE 13.0026X (GSI127).Added IECEx LCI 10.0009U, IECEx PTB 03.0000, IECEx PTB 11.0019X, IECEx SEV 15.0018, IECEx SEV 15.0019 X, IECEx SIR 07.0009X and IECEx SIR 07.0010X (cable stuffing glands).Added Appendix D: KGS certifications:Added KGS 18-GA4BO-0389X (CV21x).Added KGS 17-GA4BO-0325X (GSI127).Added Appendix E: TR CU certifications:Added TC RU C-CH.MШ06.B.00134 (CV213, CV214, GSI12x and JB11x).

PW

Edition Dateof issueWritten by

/modified by Description Signature

iv CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Department Name Date Signature

Technical contentapproved by

ATEX Manager Jacques Perriard 24.10.2018 JP

Engineering (Electronics) Hans-Peter Aeby 29.10.2018 HA

Product Management Frédéric Micco 29.10.2018 FM

Document released by Technical Publications Peter Ward 29.10.2018 PW

The duly signed master copy of this page is stored by the Technical Publications Department of Meggitt SA and can be obtained by writing to Technical Publications.

CVxxx and VExxx installation manual MACV/E vEdition 8 - October 2018

Important notices

IMPORTANT NOTICES

All statements, technical information, and recommendations in this document which relate to the products supplied by Meggitt SA (Meggitt Sensing Systems) are based on information believed to be reliable, but unless otherwise expressly agreed in writing with Meggitt SA the accuracy or completeness of such data is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You should also

check our website at www.meggittsensing.com/energy for any updates to data sheets, Ex certificates, product drawings, user manuals, service bulletins and/or other instructions affecting the product.

Unless otherwise expressly agreed in writing with Meggitt SA, you assume all risks and liability associated with use of the product. Meggitt SA takes no responsibility for any statements related to the product which are not contained in a current English language Meggitt SA (Meggitt Sensing Systems) publication, nor for any statements contained

in extracts, summaries, translations or any other documents not authored and produced by Meggitt SA.The certifications and warranties applicable to the products supplied by Meggitt SA are valid only for new products

purchased directly from Meggitt SA or from an authorised distributor of Meggitt SA.Meggitt SA reserves the right to alter any part of this publication without prior notice.

EXPORT CONTROL

The information contained in this document may be subject to export control regulations of the European Community, USA or other countries. Each recipient of this document is responsible for ensuring that the transfer or use of any information contained in this document complies with all relevant export control regulations. ECN N/A.

COPYRIGHT

Copyright© 2010-2018 Meggitt SA

All rights reserved

Published and printed by Meggitt SA in Fribourg, Switzerland

The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

The information contained in this document is subject to change without notice. This information shall not be used, duplicated or disclosed, in whole or in part,

without the express written permission of Meggitt SA (Meggitt Sensing Systems).

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vi CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

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CVxxx and VExxx installation manual MACV/E viiEdition 8 - October 2018

About this manualPREFACE

PREFACE

About this manualThis manual describes how to install vibration measurement chains using CVxxx or VExxxvelocity sensors (vibration sensors), from Meggitt Sensing Systems’ Vibro-Meter® productline.It provides information concerning the technical characteristics and describes the installation and general use of these systems.

About Meggitt, Meggitt Sensing Systems and Vibro-MeterHeadquartered in the UK, Meggitt PLC is a global engineering group specialising in extremeenvironment components and smart sub-systems for aerospace, defence and energymarkets.Meggitt Sensing Systems is the operating division of Meggitt specialising in sensing andmonitoring systems, which has operated through its antecedents since 1927 under thenames of ECET, Endevco, Ferroperm Piezoceramics, Lodge Ignition, Sensorex andVibro-Meter. Today, these operations are integrated under one strategic business unit calledMeggitt Sensing Systems, headquartered in Switzerland and providing complete systems,using these renowned brands, from a single supply base.The Meggitt Sensing Systems facility in Fribourg, Switzerland operates as the legal entityMeggitt SA (formerly Vibro-Meter SA). This site produces a wide range of vibration, dynamicpressure, proximity, air-gap and other sensors capable of operation in extreme environments,electronic monitoring and protection systems, and innovative software for aerospace andland-based turbomachinery. This includes the CVxxx-based and VExxx-based vibrationmeasurement chains produced for the Vibro-Meter® product line.

Who should use this manual?The manual is intended for use by qualified personnel, such as mechanical and electricalfitters, and operators of monitoring/control systems.

NOTE: Personnel involved in the installation, operation and maintenance of MeggittSensing Systems equipment are assumed to have the necessary technical trainingin electronics and/or mechanical engineering (professional certificate/diploma, orequivalent) to enable them to install, operate and maintain the equipment correctlyand safely.

Adhere to the instructions!The procedures described in this manual should be strictly adhered to in order to ensure thatCVxxx and VExxx velocity sensors, and their associated equipment are properly installed.This ensures that measurement signals are reliable and systems function as intended.The user should adhere to general safety procedures as well as general and specific machineconstructor guidelines and instructions.

viii CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Limitation of this documentPREFACE

Limitation of this documentNot all mounting and connecting possibilities are described in this manual. Nevertheless,several specific configurations are described in detail. These can often be adapted to specificapplications. When in doubt, contact Meggitt Sensing Systems so that an optimummeasurement solution can be determined.

Related documentationFurther information on products can be found in their corresponding data sheets. Thesedocuments can be obtained from your local Meggitt Sensing Systems representative.

CVxxx and VExxx installation manual MACV/E ixEdition 8 - October 2018

Symbols and styles used in this manualSAFETY

SAFETY

Symbols and styles used in this manualThe following symbols are used in this manual where appropriate:

NOTE: This is an example of the NOTE paragraph style. This draws the operator’sattention to complementary information or advice relating to the subject beingtreated.

Important remarks on safety

Every effort has been made to include specific safety-related procedures in this manual usingthe symbols described above. However, operating personnel are expected to follow allgenerally accepted safety procedures.All personnel who are liable to install, operate and/or maintain the equipment described in thismanual should be trained in the correct safety procedures.Meggitt Sensing Systems does not accept any liability for injury or material damage causedby failure to obey any safety-related instructions or due to any modification, transformation orrepair carried out on the equipment without written permission from Meggitt SA. Anymodification, transformation or repair carried out on the equipment without written permissionfrom Meggitt SA will invalidate any warranty.

The WARNING safety symbolTHIS INTRODUCES DIRECTIVES, PROCEDURES OR PRECAUTIONARY MEASURES WHICHMUST BE EXECUTED OR FOLLOWED. FAILURE TO OBEY A WARNING CAN RESULT ININJURY TO THE OPERATOR OR THIRD PARTIES.

The CAUTION safety symbolThis draws the operator's attention to information, directives or procedureswhich must be executed or followed. Failure to obey a caution can result indamage to equipment.

The ELECTROSTATIC SENSITIVE DEVICE symbolThis indicates that the device or system being handled can be damaged byelectrostatic discharges. See Handling precautions for electrostatic sensitive devices on page xi forfurther information.

Read this manual carefully and observe the safety instructions beforeinstalling and using the equipment described.By doing this, you will be aware of the potential hazards and be able to worksafely, ensuring your own protection and also that of the equipment.

x CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Equipment used in potentially explosive atmospheresSAFETY

Equipment used in potentially explosive atmospheres THIS MANUAL COVERS EQUIPMENT THAT CAN BE USED IN POTENTIALLY EXPLOSIVEATMOSPHERES, AS WELL AS EQUIPMENT THAT CANNOT BE USED IN POTENTIALLYEXPLOSIVE ATMOSPHERES (HAZARDOUS AREAS).TO ENSURE THAT THE EQUIPMENT CAN BE USED SAFELY IN POTENTIALLY EXPLOSIVEATMOSPHERES (EX ZONES), IT IS ESSENTIAL TO:• VERIFY THAT IT HAS THE SPECIAL MARKING DESCRIBED IN THE EX CERTIFICATES

FOR THE PRODUCT.• ADHERE TO THE CRITERIA DEFINED IN THE SAME EX CERTIFICATES.AN “X” OR A “U” PLACED AFTER AN EX CERTIFICATE NUMBER INDICATES THAT THEEQUIPMENT IS SUBJECT TO SPECIAL CONDITIONS FOR SAFE USE. THESE CONDITIONSARE DEFINED IN THE APPROPRIATE SECTIONS OF THE CORRESPONDINGEX CERTIFICATES.FOR FURTHER INFORMATION, SEE THE EX CERTIFICATES IN THE APPENDICES OF THISMANUAL. (THE EX CERTIFICATES ARE ALSO AVAILABLE FROM OUR WEBSITE ATWWW.MEGGITTSENSING.COM/ENERGY)SEE ALSO 7 MAINTENANCE.

http://www.meggittsensing.com/energy

CVxxx and VExxx installation manual MACV/E xiEdition 8 - October 2018

General handling precautionsSAFETY

General handling precautionsMeggitt Sensing Systems’ velocity sensors (vibration sensors) are rugged devices which canwithstand a certain amount of careless handling. Nevertheless, certain precautions should betaken.

• Do not drop the sensor onto a hard surface or subject it to violent shocks.• Protect the body/head of the sensor with plastic protective netting when it is being

handled, stored or transported. Remove this protection only when installing the sensoror when inspecting or testing it.

• Check for dents when inspecting the sensor as this is a sign that it could have suffereda physical shock by impact. This could have caused damage to components within thesensor.

• Do not excessively bend the sensor cable or associated cables. Adhere to the minimumbend radius quoted in the appropriate data sheet.

• When storing and using the equipment, adhere to the environmental specifications(temperature, humidity) quoted in the appropriate data sheet.

• See also Handling precautions for electrostatic sensitive devices on page xi.

Handling precautions for electrostatic sensitive devicesCertain devices used in electronic equipment can be damaged by electrostatic dischargesresulting from built-up static electricity. Because of this, special precautions must be taken tominimize or eliminate the possibility of these electrostatic discharges occurring.

• Before handling electronic circuits, discharge the static electricity from your body bytouching and momentarily holding a grounded metal object (such as a pipe or cabinet).

• Avoid the build-up of static electricity on your body by not wearing synthetic clothingmaterial, as these tend to generate and store static electric charges. Cotton or cottonblend materials are preferred because they do not store static electric charges.

• Do not handle electronic circuits unless it is absolutely necessary. Only hold modules bytheir front panel handles.

• Do not touch printed circuit boards, their connectors or their components with conductivedevices or with your hands.

• Put the electronic circuit, printed circuit board or module containing electroniccomponents into an antistatic protective bag immediately after removing it from thesystem rack.

Read the following recommendations carefully before handling CVxxx orVExxx velocity sensors.

Read the following recommendations carefully before handling electroniccircuits, printed circuit boards or modules containing electroniccomponents.

xii CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Replacement parts and accessoriesSAFETY

Replacement parts and accessories

For information on replacement parts and accessories:

• Visit the Meggitt Vibro-Meter® website at www.meggittsensing.com/energy• Contact your local Meggitt Sensing Systems representative.

Use only approved replacement parts and accessories.Do not connect with incompatible products or accessories.Only use replacement parts and accessories intended for use withCVxxx-based or VExxx-based vibration measurement chains that havebeen approved by Meggitt SA.Using incompatible replacement parts and accessories could bedangerous and may damage the equipment or result in injury.

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CVxxx and VExxx installation manual MACV/E xiiiEdition 8 - October 2018

TABLE OF CONTENTS

TITLE PAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i

REVISION RECORD SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

IMPORTANT NOTICES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

1 INTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATIONMEASUREMENT CHAINS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 System description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21.3 Component descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.3.1 CVxxx velocity transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41.3.2 ED12x cable assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41.3.3 VExxx velocity transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41.3.4 EC439 and EC440 cable assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51.3.5 JB105 or JB116 junction boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51.3.6 K209 and K210 cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51.3.7 K309 and K310 cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-61.3.8 GSI127 galvanic separation unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-61.3.9 APF19x power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-61.3.10 ASPS auxiliary sensor power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.4 Mechanical diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

2 INSTALLING VELOCITY TRANSDUCERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.1.1 Equipment installed in potentially explosive atmospheres . . . . . . . . . . . . 2-12.1.2 Recommended mounting points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.2.1 Mass effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22.1.3 Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

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2.2 Mounting velocity transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32.2.1 Mounting restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32.2.2 Preparing the machine surface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42.2.3 Mounting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

3 INSTALLING CABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.1.1 Cables in potentially explosive atmospheres . . . . . . . . . . . . . . . . . . . . . . . 3-13.1.2 Minimum bend radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.1.3 Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23.1.4 Minimizing sources of electromagnetic interference . . . . . . . . . . . . . . . . . . 3-23.1.5 Using cable conduits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3.2 Installing a connecting cable assembly or extension cable. . . . . . . . . . . . . . . . . . . 3-23.2.1 Cable handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23.2.2 Cable clamping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33.2.3 Cable mounting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.3 Cable connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53.3.1 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53.3.2 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53.3.3 Checking procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3.4 Installing transmission cables or connecting cables . . . . . . . . . . . . . . . . . . . . . . . . 3-5

4 INSTALLING JUNCTION BOXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14.1.1 Installation in potentially explosive atmospheres . . . . . . . . . . . . . . . . . . . . 4-14.1.2 Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2 Installing a junction box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24.2.1 Mounting a junction box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24.2.2 Connecting cables within a junction box . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

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5 INSTALLING GALVANIC SEPARATION UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15.1.1 Galvanic separation units in potentially explosive atmospheres . . . . . . . . 5-15.1.2 Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 Installing a GSI127 galvanic separation unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25.2.1 Mounting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25.2.2 Removing and inserting the screw terminals . . . . . . . . . . . . . . . . . . . . . . . 5-35.2.3 Connecting cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5.3 Replacing a GSI124 galvanic separation unit with a GSI127 . . . . . . . . . . . . . . . . . 5-55.3.1 Uninstalling the GSI124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-55.3.2 Installing and connecting the GSI127. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.4 Replacing a GSI122 or GSI130 galvanic separation unit with a GSI127 . . . . . . . . 5-85.4.1 Uninstalling the GSI122 or GSI130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-85.4.2 Installing and connecting the GSI127. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

6 ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16.2 General wiring diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

7 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17.2 Requirements for equipment used in potentially explosive atmospheres . . . . . . . . 7-17.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

8 END-OF-LIFE PRODUCT DISPOSAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

9 SERVICE AND SUPPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.1 Contacting us . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-19.2 Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-19.3 Sales and repairs support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-19.4 Customer feedback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Energy product return form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4Energy customer feedback form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

xvi CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

A APPENDIX A: ATEX CERTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

B APPENDIX B: CCSAUS CERTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

C APPENDIX C: IECEx CERTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

D APPENDIX D: KGS CERTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1

E APPENDIX E: TR CU CERTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

CVxxx and VExxx installation manual MACV/E 1 - 1Edition 8 - October 2018

System descriptionINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

1 INTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT CHAINS

1.1 System descriptionThis chapter provides an overview of vibration measurement chains using CVxxx and VExxxvelocity sensors, from Meggitt Sensing Systems.This range of velocity sensors are seismic transducers that operate according to the principleof electromagnetic induction. They incorporate a permanent magnet (to generate a magneticfield) and a pair of coils (to act as a conductor) suspended by a set of planar springs, asshown in Figure 1-1. When vibrated, the coils move relative to the magnet, causing a voltageto be induced in the coils.The voltage produced is proportional to the velocity of the vibration, in accordance with thefollowing formula:

Where is the output voltage (in volts) and is the magnetic flux (in webers).

As the output from the transducer is the electromotive force (volts) generated across the coilsby electromagnetic induction, the CVxxx sensors do not require any external power supply.However, the VExxx sensors do require an external power supply for their integratedelectronics.

U t( ) tddΦ k v t( )⋅= =

U Φ

Figure 1-1: Mechanical structure of CVxxx and VExxx velocity transducers

Permanent magnet

Coils (themovingelements)

Vibration sensitive axis

Planarsprings

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OverviewINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

NOTE: Further information on the specific output sensitivity (mV/mm/s or μA/mm/s) of avelocity transducer can be found in the corresponding data sheet.

NOTE: The installation of a VE210 with a current-modulated output signal, a 2-wire cableand a galvanic separation unit, allows transmission over longer distances than anyother solution.

The CVxxx and VExxx velocity transducers are ideally suited to vibration monitoring onlow-speed machines, such as hydro equipment, that generally operate between 60 and1200 rpm (approximately 1 and 20 Hz). At these low frequencies, the signal amplitudedelivered by a velocity transducer is higher and consequently more reliable than the signaldelivered by an accelerometer.

1.2 OverviewThe range of velocity transducer chains available is summarised in Table 1-1.

CVxxx and VExxx installation manual MACV/E 1 - 3Edition 8 - October 2018

OverviewINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

Table 1-1: Examples of velocity transducer chains

Components Type

Velocity transducer with integrated (built-in) signal conditioner

CV213 orCV214

Cable assembly (soft line) ED12x

Velocity transducer for low-frequency measurements with integrated (built-in) signal conditioner

VE210

Cable assembly without or with flexible protection tube for current transmission (2-wire)

EC439

Cable assembly without or with flexible protection tube for voltage transmission (3-wire)

EC440

Junction box JB105 orJB116 * *

2-wire transmission cable (current) K2xx *

3-wire transmission cable (voltage) K3xx * *

Flexible conduit (protection tube) KS107 * *

Galvanic separation unit GSI127

Power supply APF19x or ASPS

Mechanical diagram (see Figure x) 1-2 (a) and1-2 (b) 1-3

Notes:*Optional.**Either a K2xx or K3xx must be installed in the measurement chain.

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Component descriptionsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

1.3 Component descriptions

1.3.1 CVxxx velocity transducersThe CVxxx series offers a full range of velocity transducers including:• CV213 – optimised for measuring vibration to low-frequencies (10 Hz) in high

temperature environments (up to 204°C), with an integrated signal conditioner.A CV213 provides a voltage-based output signal and has an IP64 protection rating.

• CV214 – optimised for measuring vibration to low-frequencies (10 Hz) in mediumtemperature environments (up to 121°C), with an integrated signal conditioner.A CV214 provides a voltage-based output signal and has an IP64 protection rating.

The CVxxx velocity transducers do not require an external power supply.

NOTE: Further information on a specific CVxxx velocity transducer can be found in thecorresponding data sheet.

The CV213 and CV213 velocity transducers do not require an external signal conditioner.

1.3.2 ED12x cable assembliesThe ED120 and ED121 cable assemblies are soft-line, screened, 2-wire cable assembliesused to connect a CV213 or CV214 velocity transducer to the electronic monitoring system,either directly or using a junction box. They have a MIL-C/DTL-5015 connector at one end,flying leads at the other, and are available in different lengths.The ED120 cable assembly is intended for use with the CV213 velocity transducer and theED121 cable assembly is intended for use with the CV214 velocity transducer.

1.3.3 VExxx velocity transducersThe VExxx series offers the following velocity transducer:• VE210 – optimised for measuring vibration to very low-frequencies (0.5 Hz), with an

integrated signal conditioner.A VE210 provides either a voltage modulated or a current modulated output signal andhas an IP68 protection rating.

NOTE: The choice of the signal type must be made at the time of ordering.

IF A CVXXX VELOCITY TRANSDUCER IS TO BE USED IN A POTENTIALLY EXPLOSIVEATMOSPHERE, READ AND OBSERVE THE IMPORTANT SAFETY INFORMATION INEQUIPMENT USED IN POTENTIALLY EXPLOSIVE ATMOSPHERES ON PAGE X.

If a CVxxx velocity transducer is to be used in a potentially explosiveatmosphere (hazardous area), then it is essential to use a version of thevibration measurement chain that is intrinsically safe.Accordingly, all ‘sensor-side’ components such as velocity transducers,transmission cables, galvanic separation units, power supplies and safetybarriers and junction boxes are available in Ex versions.

CVxxx and VExxx installation manual MACV/E 1 - 5Edition 8 - October 2018

Component descriptionsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

The VExxx velocity transducers require an external power supply (−18 to −30 VDC).

NOTE: The VE210 velocity transducer has replaced the CV210.

NOTE: Further information on a specific VExxx velocity transducer can be found in thecorresponding data sheet.

The VE210 velocity transducer does not require an external signal conditioner.

1.3.4 EC439 and EC440 cable assembliesThe EC439 and EC440 cable assemblies are screened cable assemblies used to connect aVExxx velocity transducer to the electronic monitoring system, either directly or using anoptional junction box and/or a GSI127 galvanic separation unit.The EC439 is a 2-wire cable assembly for current transmission and is intended for use witha VE210 transducer with a current output.The EC440 is a 3-wire cable assembly for voltage transmission and is intended for use witha VE210 transducer with a voltage output.Both of these cables have an EN2997S60803FN connector at one end for connection to themilitary-standard connector on the VExxx transducer, flying leads at the other, and areavailable in different lengths. The cables are available either without or an additional flexiblehose (protection tube) made of stainless steel, in order to provide more mechanicalprotection.

1.3.5 JB105 or JB116 junction boxesJB105 and JB116 junction boxes offer a protection rating of IP65 to the connection betweena cable assembly and a transmission cable. JB105 junction boxes are made of aluminiumand JB116 junction boxes are made of polyester. Both JB105 and JB116 junction boxes areavailable with a range of cable stuffing glands for operation with cables of different diameters.

1.3.6 K209 and K210 cablesA K209 or K210 cable is used as a current or a voltage transmission cable to connect aCV213/CV214 or a VExxx transducer (via a junction box) to the electronic monitoring system,either directly, or via a GSI127 galvanic separation unit when current transmission is required,or via a GSI127 acting as a safety barrier when voltage transmission is required. The K209and K210 are shielded 2-wire cables designed for use in harsh industrial environments. Anoptional protection tube (for example, a KS107) can be used to provide additional mechanicalprotection to the cable if required.

JB105 junction boxes can only be used in ordinary applications (that is, innon-explosive atmospheres).

JB116 junction boxes can be used in potentially explosive atmospheres, forexample, when a GSI127 is installed in the measurement chain.

K209 cables can only be used in ordinary applications (that is, innon-explosive atmospheres).

K210 cables can be used in potentially explosive atmospheres, for example,when a GSI127 (or other safety barrier – not available from Meggitt SensingSystems) is installed in the measurement chain.

1 - 6 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Component descriptionsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

A K209 or K210 cable can also be used to connect a GSI127 galvanic separation unit (orother safety barrier) to the electronic monitoring system.

1.3.7 K309 and K310 cablesA K309 or K310 cable is used as a voltage transmission cable to connect a CV213/CV214or a VExxx transducer (via a junction box) to the electronic monitoring system, either directlyor via a GSI127 galvanic separation unit acting as a safety barrier, when voltage transmissionis required (sufficient). The K309 and K310 are shielded 3-wire cables designed for use inharsh industrial environments. An optional protection tube (for example, a KS107) can beused to provide additional mechanical protection to the cable if required.

1.3.8 GSI127 galvanic separation unitA GSI127 galvanic separation unit is used by CVxxx and VExxx measurement chains tosupply power to the sensor/signal conditioning circuitry, including those located in potentiallyexplosive atmospheres, while providing galvanic isolation between the sensor-side circuitryand the power supply and between the sensor-side circuitry and the ground of themonitor-side circuitry. It also converts the measured current (2-wire transmission system) orvoltage (3-wire transmission system) signal from the signal conditioner into a proportionalvoltage-based (floating) output signal, for subsequent use by monitor-side circuitry such asan electronic monitoring system.For use in potentially explosive atmospheres, the GSI127 has a certification that allowsinstallation in an Ex Zone 2, that is, it is an ‘Ex nA [ia]’ safety barrier. As such, the GSI127 isan associated apparatus which can be connected to intrinsically safe apparatus that islocated in potentially explosive atmospheres.

In ordinary applications (non-explosive atmospheres), the GSI127 can be used wheregalvanic isolation is not required but transmission distance or noise reduction is a concern,as it rejects the frame voltage that appears between the sensor ground and the electronicmonitoring system ground (thereby helping to reduce noise in the measurement chain).A GSI127 is usually installed on a DIN rail outside the rack, generally in a cubicle housing.The GSI127 galvanic separation unit requires an external power source such as an APF19xpower supply (see 1.3.9 APF19x power supply) or ASPS auxiliary sensor power supply(see 1.3.10 ASPS auxiliary sensor power supply).

NOTE: The GSI127 galvanic separation unit has replaced the GSI124.

1.3.9 APF19x power supplyAn APF19x power supply could be required to power external hardware requiring a 24 VDCpower supply, such as a GSI127 galvanic separation unit (see 1.3.8 GSI127 galvanic

K309 cables can only be used in ordinary applications (that is, innon-explosive atmospheres).

K310 cables can be used in potentially explosive atmospheres, for example,when a GSI127 (or other safety barrier – not available from Meggitt SensingSystems) is installed in the measurement chain.

The GSI127 is permitted to be installed in an Ex Zone 2 (hazardous area).For further information, see 6.2 General wiring diagrams.

CVxxx and VExxx installation manual MACV/E 1 - 7Edition 8 - October 2018

Mechanical diagramsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

separation unit). The APF19x requires a mains AC (or high-voltage DC) input and is usuallyinstalled on a DIN rail outside the rack, generally in a cubicle housing.

1.3.10 ASPS auxiliary sensor power supplyAn ASPS auxiliary sensor power supply is used to power external hardware requiring a24 VDC power supply, such as a GSI127 galvanic separation unit (see 1.3.8 GSI127 galvanicseparation unit).When a VM600 rack is used as the electronic monitoring system, an ASPS can be installedin the VM600 rack if an AC input version of the RPS6U rack power supply unit is used. It canreplace an APF19x power supply mounted externally, thereby reducing wiring and simplifyingthe installation.

1.4 Mechanical diagramsFigure 1-2 and Figure 1-3 show some examples of the velocity transducer chains available.

1 - 8 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Mechanical diagramsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

VM60

0VM

600

Figu

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2: E

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CV

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JB10

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JB

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For e

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C

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For e

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CVxxx and VExxx installation manual MACV/E 1 - 9Edition 8 - October 2018

Mechanical diagramsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

VM60

0VM

600

GSI

127

SEN

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: 100

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K30

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um le

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: 200

m)

K209

conn

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JB

105

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(opt

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with

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(EC

440

with

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Ext

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(EC

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with

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with

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put s

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1 - 10 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Mechanical diagramsINTRODUCTION TO CVXXX AND VEXXX-BASED VIBRATION MEASUREMENT

CVxxx and VExxx installation manual MACV/E 2 - 1Edition 8 - October 2018

General precautionsINSTALLING VELOCITY TRANSDUCERS

2 INSTALLING VELOCITY TRANSDUCERSThis chapter provides general guidelines on mounting and installing the CVxxx and VExxxvelocity transducers. The information given applies to all velocity transducers inmeasurement chains.

NOTE: Further product specific information can be found in the corresponding data sheet.

2.1 General precautions

2.1.1 Equipment installed in potentially explosive atmospheres

2.1.2 Recommended mounting pointsVelocity transducers and their associated hardware must be mounted very carefully in orderto ensure the quality of data collected and increase product durability. Velocity transducerscan be mounted on various parts of a machine (see Figure 2-1).

Care should be taken to avoid placing the transducer at resonant locations on the structureif one wants to measure the motion of the entire structure. Typical mounting locations wouldbe on motor end bells as close as possible to the bearing. Fan and pump pillow blocks areother acceptable locations that are commonly used.

TO ENSURE THAT THE EQUIPMENT CAN BE USED SAFELY IN POTENTIALLY EXPLOSIVEATMOSPHERES (EX ZONES), IT IS ESSENTIAL TO RESPECT THE CRITERIA OUTLINED INTHE EX CERTIFICATES FOR THE PRODUCT.AN “X” OR A “U” PLACED AFTER AN EX CERTIFICATE NUMBER INDICATES THAT THEEQUIPMENT IS SUBJECT TO SPECIAL CONDITIONS FOR SAFE USE. THESE CONDITIONSARE DEFINED IN THE APPROPRIATE SECTIONS OF THE CORRESPONDINGEX CERTIFICATES.FOR FURTHER INFORMATION, SEE THE EX CERTIFICATES IN THE APPENDICES OF THISMANUAL. (THE EX CERTIFICATES ARE ALSO AVAILABLE FROM OUR WEBSITE ATWWW.MEGGITTSENSING.COM/ENERGY)

Figure 2-1: Recommended mounting points

Install velocity transducers as close as possible to the bearings. A velocitytransducer installed on a surface with low mechanical stiffness couldgenerate erroneous measurements.

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2 - 2 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

General precautionsINSTALLING VELOCITY TRANSDUCERS

NOTE: The procedures described should be strictly followed to ensure that equipment isproperly installed.

NOTE: Adhere to general safety procedures, as well as general and specific machineconstructor instructions and guidelines.

NOTE: Not all mounting and installation options are described in this manual.Nevertheless, some specific configurations are described in detail, which can oftenbe adapted for specific applications. Contact Meggitt Sensing Systems for furtherinformation.

NOTE: Always adhere to the machining tolerances to eliminate the possibility of vibrationsignals being contaminated by deformations in the base of the transducer.

2.1.2.1 Mass effects

Any sensor attached to a structure affects the motion of the structure. The mass of thestructure should be at least 10 times that of the velocity transducer, in order for this effect tohave an error of less than 10%.

NOTE: Further information on the weight of a transducer can be found in thecorresponding data sheet.

2.1.3 Operating temperature range

NOTE: Further information on the operating temperature range of a velocity transducercan be found in the corresponding data sheet.

The ambient temperature where a velocity transducer is installed must bepermanently within its operating temperature range.

CVxxx and VExxx installation manual MACV/E 2 - 3Edition 8 - October 2018

Mounting velocity transducersINSTALLING VELOCITY TRANSDUCERS

2.2 Mounting velocity transducers

2.2.1 Mounting restraintsThe CV213 and CV214 can be mounted within ±100° of the vertical position, as shown inFigure 2-2.

The VE210 has no mounting restraints and can be mounted in any direction, as shown inFigure 2-3.

Figure 2-2: Allowed mounting orientation for a CV213 or CV214 velocity transducer

Valid mounting orientations

−100° +100°

0° (vertical)

Range (sector) of invalid mounting orientations

Valid mountingorientations

Figure 2-3: Allowed mounting orientation for a VE210 velocity transducer

Valid mounting orientations

−90°(horizontal)

+90°(horizontal)

0° (vertical)

±180° (upside down)

2 - 4 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Mounting velocity transducersINSTALLING VELOCITY TRANSDUCERS

2.2.2 Preparing the machine surfaceAccurate measurements are only possible when a transducer is properly mounted on thetarget machine. The base of the transducer and the mounting surface must maintain goodcontact during the measurement. Ideally, the sensor should be mounted as close as possibleto the source of vibration, for example, the bearing housing.Before mounting a velocity transducer, the machine surface should be prepared at themounting location. The surface should be even and perpendicular to the desired axis ofsensitivity.The CVxxx and VExxx velocity transducers are mounted using screw-thread adaptors:• For the VE210, a separate TA 114 mounting stud (adaptor) is available, as shown in

Figure 2-4.• For the CV213 and CV214, the body of the transducer incorporates an electrically

isolated screw-thread adaptor, as shown in Figure 2-5.Mounting holes should be carefully drilled and tapped in accordance with the adaptor (stud)being used.

Figure 2-4: Mounting surface for a VE210 velocity transducerusing a TA114 mounting adaptor

Velocity transducer(for example, VE210)

M8

90°

~Ø15

18.5

min

22

Note: All dimensions are in mm unless otherwise stated.

CVxxx and VExxx installation manual MACV/E 2 - 5Edition 8 - October 2018

Mounting velocity transducersINSTALLING VELOCITY TRANSDUCERS

Figure 2-5: Mounting surface for a CV213 or CV214 velocity transducer

Velocity transducer(for example, CV213 or CV214)

>1.1 x diameterof transducer

~Ø

41.4

15 m

in

20Note: All dimensions are in mm unless otherwise stated.

2

42 m

in

1/2”

-20

UN

F-3A

2 - 6 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Mounting velocity transducersINSTALLING VELOCITY TRANSDUCERS

2.2.3 Mounting procedureThe CVxxx and VExxx velocity transducers are mounted using screw-thread adaptors.Depending on the transducer, the mounting adaptor can be a separate component (VE210)or it can be built into the body of the transducer (CV213 and CV214).

NOTE: Further information on the screw-thread adaptor used by a velocity transducer canbe found in the corresponding data sheet.

This mounting procedure is similar, independently of the type of velocity transducer. Forexample, Figure 2-6 illustrates the mounting procedure for a VE210 transducer.In general, to mount a CVxxx or VExxx velocity transducer using a screw-thread adaptor:1- Coat the screw threads (of the adaptor stud or transducer) with an adhesive such as

LOCTITE 241.

NOTE: LOCTITE® 241 adhesive can be used to stop screws becoming loose due tovibration. However, the screws can still be loosened at a later stage if necessary.

2- Assemble the adaptor stud and transducer (see Figure 2-6) and screw into the preparedmachine surface.

NOTE: CVxxx and VExxx velocity transducers only need to be hand-tight.Be careful not to over tighten.

Sometimes, it is not practical or it is prohibited to drill the machinery surface, in which case,a mounting pad can be glued to the machine surface. Contact Meggitt Sensing Systems forfurther information.

VE210 transducer

Machined surface

Cap piece of the machine bearing

Internal screw thread

TA114 mounting stud

Connector

Figure 2-6: Mounting a VE210 velocity transducer on a machined surface usingan adaptor stud

CVxxx and VExxx installation manual MACV/E 3 - 1Edition 8 - October 2018

General precautionsINSTALLING CABLES

3 INSTALLING CABLESThis chapter provides guidelines on installing cables in velocity transducer chains.

NOTE: Further product specific information can be found in the corresponding data sheet.

This information applies to any of the following cables in the chain:• Cables connected directly or indirectly to the sensor. This includes connecting cable

assemblies such as the ED1xx the EC4xx and extension cables.• Other transmission cables and connecting cables (K2xx and K3xx).

NOTE: The requirements for soft-line cables are outlined in sections 3.2 Installing aconnecting cable assembly or extension cable.

Further information on connecting transmission and connecting cables is described in5 Installing galvanic separation units.

3.1 General precautions

3.1.1 Cables in potentially explosive atmospheres

3.1.2 Minimum bend radiusIt is essential that the minimum bend radius is respected when connecting and fixing aconnecting cable, extension cable or transmission cable.

NOTE: Further specific information on the minimum bend radius of a specific cable can befound in the corresponding data sheet.

ONLY CABLES APPROPRIATE FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES(EX ZONES) SHOULD BE INSTALLED IN SUCH ENVIRONMENTS.THE LENGTHS OF ALL CABLES (INTEGRAL CABLES AND/OR CABLE ASSEMBLIES)INSTALLED IN POTENTIALLY EXPLOSIVE ATMOSPHERES MUST BE DETERMINED ASPER THE CRITERIA DEFINED IN THE APPROPRIATE SECTIONS OF THE CORRESPONDINGEX CERTIFICATES.FOR FURTHER INFORMATION, SEE THE EX CERTIFICATES IN THE APPENDICES OF THISMANUAL. (THE EX CERTIFICATES ARE ALSO AVAILABLE FROM OUR WEBSITE ATWWW.MEGGITTSENSING.COM/ENERGY)

Failure to respect the minimum bend radius of a cable can lead to permanentcable damage.

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3 - 2 CVxxx and VExxx installation manual MACV/EEdition 8 - October 2018

Installing a connecting cable assembly or extension cableINSTALLING CABLES

3.1.3 Operating temperature range

NOTE: Further information on the operating temperature range of a cable can be found inthe corresponding data sheet.

3.1.4 Minimizing sources of electromagnetic interferenceSignals in a measurement chain are sensitive to electromagnetic interference (EMI) at lowfrequencies and radio frequency interference (RFI). This is particularly true near the velocitytransducer, where signal levels are low. Interference can come from a variety of sourcesincluding power cables, strong magnetic fields, motors, switching gear, portable phones andwalkie-talkies.The following precautions must be taken to reduce the effects of EMI:1- Use appropriate grounding techniques. Always conform to the wiring diagrams

(see 6 Electrical connections).2- Electrically isolate (shield) each measurement chain from all others.3- When possible, place cables in a grounded steel protection tube to provide additional

electrical and mechanical protection.4- Do not run signal cables through conduits used for other purposes, such as power cables

or communications lines.

3.1.5 Using cable conduitsCable conduits provide mechanical and electrical protection to cables. All signal wiring shouldbe run through conduits that are reserved for only one type of cable. Do not mix signal wiringwith power or communications cables.Cable conduits must be well grounded according to industry standards in order to provideprotection against EMI (see 3.1.4 Minimizing sources of electromagnetic interference). Theyshould prevent water or other liquids entering. If there is a risk of this happening, or ofcondensation forming in the conduit, adequate drainage should be provided.

3.2 Installing a connecting cable assembly or extension cableThis section applies to all cables (with or without flexible protection tubes) carrying low-levelsignals.

3.2.1 Cable handlingA cable is an important part of the measurement chain, since it transmits the signal to theconditioning electronics. Therefore, cables should be handled with care. They should not beunnecessarily bent or handled harshly (see 3.1.2 Minimum bend radius).

The ambient temperature where a cable is installed must remain permanentlywithin its operating temperature range.

SEE 3.1 GENERAL PRECAUTIONS BEFORE INSTALLING CABLES.

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Installing a connecting cable assembly or extension cableINSTALLING CABLES

3.2.2 Cable clampingThe CVxxx velocity transducers from Meggitt Sensing Systems generate voltage-basedsignals. The CV213 and CV214 transducers have built-in signal conditioning (integratedelectronics) that provide a voltage-based output signal only.The VExxx velocity transducers from Meggitt Sensing Systems generate voltage-basedsignals. The VE210 transducer has built-in signal conditioning (integrated electronics) thattransforms this signal into a current-based or voltage-based output signal.Therefore, the cable clamping requirements are not strict (in comparison with the CAxxxseries, which have charge-based outputs and are much more prone to the triboelectric effect,that is, interference in the measured signal due to movement in the cabling).However, it is still recommended that velocity transducer cables are clamped at regularintervals to limit their movement relative to the machine housing (see Figure 3-1).Further away from the machine, it is possible to use a rigid metal cable duct rather thanclamping the cable.It is advisable to use heat-shrinkable sleeves to ensure that the connectors do not becomeloose. This could occur when the connectors are in close proximity to the machine beingmeasured and are thus susceptible to vibrations produced by the machine.

NOTE: Transmission cables (K2xx or K3xx) installed after junction boxes in themeasurement chain also carry signals that are either current-based orvoltage-based. So these are also not as sensitive to the triboelectric effect (ascharge-based outputs) and again, clamping is not so vital. Precautions mustnevertheless be taken to reduce EMI (see 3.1.4 Minimizing sources ofelectromagnetic interference).

3.2.3 Cable mounting procedure1- Ensure that the cable is straight to the first cable clamp, positioned close to the velocity

transducer (see Figure 3-1).

NOTE: LOCTITE® 241 adhesive can be used to stop screws becoming loose due tovibration. However, the screws can still be loosened at a later stage if necessary.

2- Do not bend the cable beyond its minimum bend radius.3- Clamp the remainder of the cable at suitable intervals (see 3.2.2 Cable clamping).

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Installing a connecting cable assembly or extension cableINSTALLING CABLES

Figure 3-1: Cable clamping at regular intervals

The routing of the loop should cause a minimum amount of stress in the cable

Machine surface

Velocity transducer cable assembly (connecting, extension or transmission)

Cableclamps

Fromtransducer

Toelectronics

Avoid stress between the transducer and the first cable clamp

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Cable connectorsINSTALLING CABLES

3.3 Cable connectors

3.3.1 ConnectorsThe connectors fitted to CVxxx and VExxx velocity transducer cables are one of the followingtypes:• Rugged circular, threaded-ring, multi-pin connectors (MIL-C/DTL-5015 series military

standard) on the ED12x cable assemblies for operation with the CV213 and CV214.• Rugged circular, threaded-ring, multi-pin connectors (EN 2997 series aerospace

standard) on the EC4xx cable assemblies for operation with the VExxx.

3.3.2 General precautions

• Protect all types of connector against physical and environmental (such as humidity)damage by means of a protection cap when not in use. Damage to connector pins or tothe connector thread could lead to erroneous measurements.

• Do not place an undue load on the connector when the mating halves are in position.Torque or stress loading on the two halves could damage the connector points or threadsand cause invalid data transmission.

• Ensure that the screw threads are not cross-threaded or misaligned when connectingconnectors with threaded connections.

3.3.3 Checking procedureVisually inspect the two connector halves for the following:• Check the outer casing for damaged areas, scratches or dents.• Check the connector pins to ensure that they are not bent or loose.• Ensure that no dust, dirt or particles are present on the connector pins, threads or

housing.

3.4 Installing transmission cables or connecting cables

Transmission cables (located after a JB105 or JB116 junction box) and connecting cables(located after a GSI12x galvanic separation unit) can be mounted using the standardprocedures for low-voltage installations.However, care should be taken to minimize the effects of EMI (3.1.4 Minimizing sources ofelectromagnetic interference).

The following precautions with regard to connectors must be adhered to atall times.

SEE 3.1 GENERAL PRECAUTIONS BEFORE INSTALLING TRANSMISSION CABLES ORCONNECTING CABLES.

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Installing transmission cables or connecting cablesINSTALLING CABLES

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General precautionsINSTALLING JUNCTION BOXES

4 INSTALLING JUNCTION BOXESThis chapter provides general guidelines on installing a JB105 or JB116 junction box in avelocity transducer chain.

NOTE: Further product specific information can be found in the corresponding data sheet.

4.1 General precautions

4.1.1 Installation in potentially explosive atmospheres

NOTE: Refer to the corresponding data sheet to determine whether a junction box can beinstalled in potentially explosive atmospheres.

4.1.2 Operating temperature range

NOTE: Further information on the operating temperature range of a junction box or anindustrial housing can be found in the corresponding data sheet.

NOTE: Further information on the operating temperature range of a cable or a signalconditioner can be found in the corresponding data sheet.

JB116 JUNCTION BOXES CAN BE INSTALLED IN POTENTIALLY EXPLOSIVEATMOSPHERES.FOR FURTHER INFORMATION, SEE THE EX CERTIFICATES IN THE APPENDICES OF THISMANUAL. (THE EX CERTIFICATES ARE ALSO AVAILABLE FROM OUR WEBSITE ATWWW.MEGGITTSENSING.COM/ENERGY)JB105 JUNCTION BOXES AND ALL OTHER JUNCTION BOXES THAT ARE NOTEX CERTIFIED MUST NOT BE INSTALLED IN EXPLOSIVE ATMOSPHERES.

The temperature where a junction box or an industrial housing is installedmust be permanently within its operating temperature range.

Only install a junction box at a location where the temperature liespermanently within the temperature range of the cables connected within it.

Only install an industrial housing at a location where the temperature liespermanently within the temperature range of the signal conditioner housedwithin it.

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Installing a junction boxINSTALLING JUNCTION BOXES

4.2 Installing a junction box

4.2.1 Mounting a junction box1- Choose a vibration-free place to mount the junction box.2- Check the distance between the holes on the junction box, then drill and tap appropriate

holes in the machine surface (see Figure 4-1 for details of a JB116 junction box).

NOTE : For the dimensions of a different junction box, refer to the corresponding datasheet.

3- Remove the cover of the junction box (see Figure 4-2).4- Mount the junction box on the mounting surface using the screws provided.5- Connect the cables within the junction box (see 4.2.2 Connecting cables within a junction

box).

SEE 4.1 GENERAL PRECAUTIONS BEFORE INSTALLING A JUNCTION BOX.

Figure 4-1: Dimensions of a JB116 junction box

Two M4 x 20mounting screws

98

M4

4575

110

Note: all dimensions in mm unless otherwise stated.

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Installing a junction boxINSTALLING JUNCTION BOXES

4.2.2 Connecting cables within a junction box1- Mount the junction box (see 4.2.1 Mounting a junction box).2- Loosen the cable stuffing glands on the junction box and feed the cables through.3- Tighten the cable stuffing glands and check that the cables are securely fastened by the

stuffing glands. This ensures that the junction box is waterproof.4- Make the electrical connections within the junction box (see Figure 4-2).5- Screw the cover back on the junction box.

Figure 4-2: Mounting a JB116 junction box

Cover of the junction box

Two M4 washers

Internal screwthreads in themounting surface

Transducerextension cable(for example, ED12x)

Transmission cable

Cylindrical head screwsfor attaching the cover

Two M4 x 16mounting screws

Insulation stripped

Cable stuffing gland

Insulationstripped

Cable stuffinggland

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Installing a junction boxINSTALLING JUNCTION BOXES

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CVxxx and VExxx installation manual MACV/E 5 - 1Edition 8 - October 2018

General precautionsINSTALLING GALVANIC SEPARATION UNITS

5 INSTALLING GALVANIC SEPARATION UNITSThis chapter provides general guidelines on mounting galvanic separation units in velocitymeasurement chains.The GSI127 is a drop-in replacement for the GSI122, GSI123, GSI124 and GSI130 galvanicseparation units and for the GSV14x power supply and safety barrier unit.

NOTE: A GSI127 with ordering options B02 (for VE210 using current transmission(2-wire)) or B05 (for VE210 using voltage transmission (3-wire)) can be used invelocity measurement chains.

NOTE: Further information on the GSI127 galvanic separation unit can be found in its datasheet.

5.1 General precautions

5.1.1 Galvanic separation units in potentially explosive atmospheres

NOTE: Galvanic separation units can also be used in ordinary applications (non-explosiveatmospheres), for example, in order to allow the transmission of signals over longdistances (2-wire current transmission) and/or to reduce the noise in themeasurement chain due to frame voltage.

5.1.2 Operating temperature range

NOTE: Further information on the operating temperature range of a galvanic separationunit can be found in the corresponding data sheet.

The temperature where a galvanic separation unit is installed must bepermanently within its operating temperature range.

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Installing a GSI127 galvanic separation unitINSTALLING GALVANIC SEPARATION UNITS

5.2 Installing a GSI127 galvanic separation unit

5.2.1 Mounting procedureA GSI127 galvanic separation unit should be installed on a 35 mm wide symmetrical DIN railsuch as a TH 35-7.5 (see Figure 5-1) and is generally mounted in an industrial housing, rackor cabinet.

NOTE: A GSI127 galvanic separation unit should be installed vertically on the DIN rail, asthis orientation maximises the air flow available to cool devices.As shown in Figure 5-1, a GSI127 is typically installed right-side-up (with themounting adaptor latch at the bottom of the unit), but it can equally be installedupside-down (inverted, with the mounting adaptor latch at the top of the unit) forease of installation and wiring.

The GSI127’s housing features removable screw-terminal connectors that can unpluggedfrom the main body of the housing to simplify installation of the unit.

SEE 5.1 GENERAL PRECAUTIONS BEFORE INSTALLING A GSI127 GALVANICSEPARATION UNIT.

Transmission cable(from signal conditioner)

Connecting cable(to +24VDC

power supply)

Figure 5-1: A GSI127 galvanic separation unit(shown with connections for a 2-wire current transmission system)

35 mm symmetrical DIN rail (TH 35-7.5)

Latch ofintegrated DIN-rail mounting adaptor

Removable screw

terminals

Connecting cable(to electronic

monitoring system)

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Installing a GSI127 galvanic separation unitINSTALLING GALVANIC SEPARATION UNITS

5.2.2 Removing and inserting the screw terminalsTo remove a screw terminal from the main body of a GSI127 unit:1- Push the raised tab on the front of the screw terminal (which acts as a lever) away from

the main body of the unit to overcome the retaining force and separate the screw terminaland the unit (see Figure 5-2). Use enough force to separate the screw terminal from bodyof the unit by approximately 5 mm.

2- Pull the screw terminal to remove it from the main body of the unit.

To reinsert a a screw terminal in the body of a GSI127 unit:1- Ensure that the raised tab on the front of the screw terminal is pushed down flat so that

the rear of the screw terminal is not obstructed.2- Align the screw terminal with the main body of the unit, ensuring that the guide-rails of

both parts are aligned, and push the screw terminal into the main body of the unit.3- When the screw terminal is approximately 1-2 mm from the main body of the unit, more

force is required to overcome the mechanical locking mechanism and the friction of theconnectors.There should be an audible click when the screw terminal is properly inserted.

1. Push the raised tab away from the body of the unit

Figure 5-2: Removing a screw terminal from the main body of a GSI127 unit

2. Pull the screw terminal to remove it

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Installing a GSI127 galvanic separation unitINSTALLING GALVANIC SEPARATION UNITS

5.2.3 Connecting cablesThe transmission cable from the velocity transducer chain sensor-side circuitry(VE210 velocity transducer) and the connecting cable to the monitor-side circuitry areconnected to the GSI127 galvanic separation unit using removable screw terminals(see Figure 5-1 and Figure 5-2).

NOTE: The screw terminals on the top of the GSI127, labelled “SENSOR”, are forconnection to the transmission cable that connects to the sensor-side circuitry, thatis, to front-end circuitry such as transducers and/or signal conditioners.

NOTE: The screw terminals on the bottom of the GSI127, labelled “MONITOR”, are forconnection to the connecting cable that connects to the monitor-side circuitry, suchas a VM600 rack-based electronic monitoring system.

There is a block of four screw terminals on the top front of the GSI127, labelled “SENSOR”,out of which, up to three of which are used for connection to the transmission cable thatconnects to the sensor-side circuitry:• For operation with current signals (2-wire transmission system) from the

VE210 velocity transducer, a GSI127 with ordering option B02 should be used. Thisoption uses two of the SENSOR screw terminals, labelled “+” and “−”. The other twoSENSOR screw terminals, labelled “NC”, are not connected.

• For operation with voltage signals (3-wire transmission system) from theVE210 velocity transducer, a GSI127 with ordering option B05 should be used. Thisoption uses three of the SENSOR screw terminals, labelled “COM”, “−” and “I/P”. Theother SENSOR screw terminal, labelled “NC”, is not connected.

There is a block of four screw terminals on the bottom front of the GSI127, labelled“MONITOR”, all of which are used for connection to the connecting cable that connects to themonitor-side circuitry:• The connection of the voltage output signal is the same for all GSI127s (ordering options

B01 to B05) and uses all of the MONITOR screw terminals, labelled “24 VDC +”,“24 VDC −”, “SIGNAL 0V” and “SIGNAL O/P”.

See 6 Electrical connections for detailed wiring diagrams of CVxxx and VExxx velocitytransducer measurement chains using the GSI127.

NOTE: The shield of the transmission cable from the sensor-side circuitry should not beconnected to the GSI127 galvanic separation unit (“open screening”).Instead, the transmission cable from the sensor-side circuitry must be connectedto the mandatory grounding bracket at the entrance to the cubicle that containsthe GSI127.

NOTE: The GSI127 galvanic separation unit does not require a ground connection andshould not be grounded to its DIN rail.

If required, see 5.3 Replacing a GSI124 galvanic separation unit with a GSI127 or5.4 Replacing a GSI122 or GSI130 galvanic separation unit with a GSI127.

CVxxx and VExxx installation manual MACV/E 5 - 5Edition 8 - October 2018

Replacing a GSI124 galvanic separation unit with a GSI127INSTALLING GALVANIC SEPARATION UNITS

5.3 Replacing a GSI124 galvanic separation unit with a GSI127For a GSI124 galvanic separation unit:• The connections at the top of the housing are for the connecting cable to the electronic

monitoring system.• The connections at the bottom of the housing are for the transmission cable from the

front-end circuitry such as transducers and/or signal conditioners.For a GSI127 galvanic separation unit:• The connections at the top of the housing are for the transmission cable from the

front-end circuitry such as transducers and/or signal conditioners.• The connections at the bottom of the housing are the connecting cable to the electronic

monitoring system.

NOTE: When replacing a GSI124 galvanic separation unit with a GSI127, the length of thecables to the unit might have to be adjusted in order to allow for this change ofposition.

5.3.1 Uninstalling the GSI124

A GSI124 galvanic separation unit is generally mounted in an industrial housing, rack orcabinet. The transmission cable from the sensor-side circuitry and the connecting cable tothe monitor-side circuitry are connected to the GSI124 using screw terminals(see Figure 5-3).To uninstall a GSI124:1- Turn off the power supply to the equipment.2- Identify each wire for both the transmission cable from the sensor-side and the

connecting cable to the monitor-side that are connected to the GSI124. See Figure 5-3and use Table 5-1 to record the number and/or colour for each wire.

3- On the GSI124, unscrew the screw terminals on the upper half of the unit in order todisconnect the connecting cable to the monitor-side circuitry (electronic monitoringsystem).

4- On the GSI124, unscrew the screw terminals on the lower half of the unit in order todisconnect the transmission cable from the sensor-side circuitry (signal conditioner).

5- Disconnect the grounding. That is, disconnect the black flying lead terminated with acrimp from the underside of the GSI124 and then remove this lead from the DIN rail, asit is not required by the GSI127 (see Figure 5-3).

6- Remove the GSI124 from the DIN rail.

SEE 5.1 GENERAL PRECAUTIONS BEFORE REPLACING A GSI124 GALVANICSEPARATION UNIT WITH A GSI127.

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Replacing a GSI124 galvanic separation unit with a GSI127INSTALLING GALVANIC SEPARATION UNITS

Table 5-1: GSI124 wire identification and mapping to a GSI127

Transmission cable (sensor-side) Connecting cable (monitor-side)

GSI124 terminal

Wireno.

Wirecolour

GSI127 terminal

GSI124 terminal

Wireno.

Wirecolour

GSI127terminal

+ + OUT O/P

SIG

NA

L

− − 0V2 0V

SHIELD1 +24V +

24VD

C

0V2 −

Notes1. The shield of the transmission cable from the velocity transducer chain sensor-side circuitry must not be connected to the GSI127

galvanic separation unit (“open screening”). Instead, the shield must be connected to the mandatory grounding bracket at the entrance to the cubicle that contains the GSI127. See 6 Electrical connections.

2. For improved performance and interfacing flexibility, the GSI127 has a separate differential (“floating”) output with two dedicated screw terminals (O/P and 0V) and a separate 24 VDC power supply input with two dedicated screw terminals (+ and −), whereas the GSI124 has a single terminal (0V) that is used as a common reference for both the signal output and the power supply input.When replacing a GSI124 with a GSI127 in a velocity transducer chain, separate wires are required for the connection between the GSI127’s 0V (SIGNAL) terminal and the connecting cable to the electronic monitoring system and for the connection between the GSI127’s − (24 VDC) terminal and the connecting cable to the power supply.

Figure 5-3: A GSI124 galvanic separation unit

Transmission cable(from signal conditioner)

Screwterminals

Grounding of the unit by flying lead

Clamp

Connecting cable(to electronic

monitoring system)

Shielding cord

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Replacing a GSI124 galvanic separation unit with a GSI127INSTALLING GALVANIC SEPARATION UNITS

5.3.2 Installing and connecting the GSI127To replace a GSI124 with a GSI127:1- Ensure that the procedure outlined in 5.3.1 Uninstalling the GSI124 has been followed

and that the power supply to the equipment is turned off.2- Either reuse the existing DIN rail or install a new one.3- Clip the GSI127 to the DIN rail.4- If necessary:

• Adapt the length of the transmission cable and connecting cable.• Strip the transmission cable from the sensor-side circuitry in order to get a sufficient

length of shielding cord for connection to the mandatory grounding bracket at theentrance to the cubicle that contains the GSI127 (see 6 Electrical connections).

5- Strip the end of each wire to expose approximately 5 mm of conductor.6- For each wire to be connected:

• Determine which terminal each wire has to be connected to using the informationrecorded in Table 5-1.

• Connect each wire by inserting the conductor into the corresponding screw terminaland tightening the fixing screw until tight.

NOTE: The GSI127’s housing features removable screw terminals that can unpluggedfrom the main body of the housing to simplify installation of the unit.

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Replacing a GSI122 or GSI130 galvanic separation unit with a GSI127INSTALLING GALVANIC SEPARATION UNITS

5.4 Replacing a GSI122 or GSI130 galvanic separation unit with a GSI127

5.4.1 Uninstalling the GSI122 or GSI130

A GSI122 or GSI130 galvanic separation unit is generally mounted in an industrial housing,rack or cabinet. These units are normally installed on a dedicated mounting plate using alocating pin and a fixing screw (see Figure 5-5). The transmission cable from the sensor-sidecircuitry and the connecting cable to the monitor-side circuitry are connected to the GSI124using AMP Faston 6.3 lugs (see Figure 5-4) that are crimped to the wires.To uninstall a GSI122 or GSI130:1- Turn off the power supply to the equipment.2- Identify each wire for both the transmission cable from the sensor-side and the

connecting cable to the monitor-side that are connected to the GSI122 or GSI130. SeeFigure 5-4 and use Table 5-2 to record the number and/or colour for each wire.

3- On the GSI122 or GSI130, pull the three AMP Faston 6.3 lugs free from the upper halfof the unit in order to disconnect the connecting cable to the monitor-side circuitry(electronic monitoring system).

4- On the GSI122 or GSI130, pull the two AMP Faston 6.3 lugs free from the lower half ofthe unit in order to disconnect the transmission cable from the sensor-side circuitry(signal conditioner).

5- Undo the M4 fixing screw until the GSI122 or GSI130 has been uninstalled anddisassemble the mounting plate from the DIN rail (see Figure 5-5).

SEE 5.1 GENERAL PRECAUTIONS BEFORE REPLACING A GSI122 OR GSI130 GALVANICSEPARATION UNIT WITH A GSI127.

Table 5-2: GSI122 or GSI130 wire identification and mapping to a GSI127

Transmission cable (sensor-side) Connecting cable (monitor-side)

GSI122 or GSI130 terminal

Wireno.

Wirecolour

GSI127 terminal1

GSI122 or GSI130 terminal

Wireno.

Wirecolour

GSI127terminal

+ + SIGNAL O/P

SIG

NA

L

− − 0V2 0V

+24V +

24VD

C

0V2 −

Notes1. The shield of the transmission cable from the velocity transducer chain sensor-side circuitry must not be connected to the GSI127

galvanic separation unit (“open screening”). Instead, the shield must be connected to the mandatory grounding bracket at the entrance to the cubicle that contains the GSI127. See 6 Electrical connections.

2. For improved performance and interfacing flexibility, the GSI127 has a separate differential (“floating”) output with two dedicated screw terminals (O/P and 0V) and a separate 24 VDC power supply input with two dedicated screw terminals (+ and −), whereas the GSI122 and GSI130 have a single terminal (0V) that is used as a common reference for both the signal output and the power supply input. When replacing a GSI122 or GSI130 with a GSI127 in a velocity transducer chain, separate wires are required for the connection between the GSI127’s 0V (SIGNAL) terminal and the connecting cable to the electronic monitoring system and for the connection between the GSI127’s − (24 VDC) terminal and the connecting cable to the power supply.

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Replacing a GSI122 or GSI130 galvanic separation unit with a GSI127INSTALLING GALVANIC SEPARATION UNITS

M4 fixingscrew

Figure 5-4: A GSI122 or GSI130 galvanic separation unit

AMP Faston 6.3 lugs crimped to leads

AMP Faston 6.3terminals

AMP Faston 6.3 lugscrimped to leads

AMP Faston 6.3 terminals

Connecting cable(to electronic

monitoring system)

Transmission cable(from signal conditioner)

Figure 5-5: The mounting plate used by GSI122 and GSI130 galvanic separation units

Mounting plate

M4 fixing screw

Locating pin (behind)

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Replacing a GSI122 or GSI130 galvanic separation unit with a GSI127INSTALLING GALVANIC SEPARATION UNITS

5.4.2 Installing and connecting the GSI127To replace a GSI122 or GSI130 with a GSI127:1- Ensure that the procedure outlined in 5.4.1 Uninstalling the GSI122 or GSI130 has been

followed and that the power supply to the equipment is turned off.2- Either reuse the existing DIN rail or install a new one.3- Clip the GSI127 to the DIN rail.4- Cut each wire close to where they are crimped to the AMP Faston 6.3 lugs.5- If necessary:

• Adapt the length of the transmission cable and connecting cable.• Strip the transmission cable from the sensor-side circuitry in order to get a sufficient

length of shielding cord for connection to the mandatory grounding bracket at theentrance to the cubicle that contains the GSI127 (see 6 Electrical connections).

6- Strip the end of each wire to expose approximately 5 mm of conductor.7- For each wire to be connected:

• Determine which terminal each wire has to be connected to using the informationrecorded in Table 5-2.

• Connect each wire by inserting the conductor into the corresponding screw terminaland tightening the fixing screw until tight.

NOTE: The GSI127’s housing features removable screw terminals that can unpluggedfrom the main body of the housing to simplify installation of the unit.

CVxxx and VExxx installation manual MACV/E 6 - 1Edition 8 - October 2018

General precautionsELECTRICAL CONNECTIONS

6 ELECTRICAL CONNECTIONS

6.1 General precautions

6.2 General wiring diagrams

NOTE: Information on connecting equipment to the electronic monitoring system can befound in the project-specific wiring diagram delivered with a system.

Additional information is given in the wiring diagrams listed in Table 6-1.

IN ORDINARY APPLICATIONS (NON-EXPLOSIVE ATMOSPHERES), NO CERTIFICATIONS AREREQUIRED FOR THE USE OF THESE MEASUREMENT CHAINS.HOWEVER, IN POTENTIALLY EXPLOSIVE ATMOSPHERES, EX CERTIFICATIONS AREREQUIRED FOR THE USE OF THESE MEASUREMENT CHAINS. THE ACTUALEX CERTIFICATION REQUIRED FOR EACH PRODUCT IN THE MEASUREMENT CHAINDEPENDS ON THE ATEX/IECEX ZONE IN WHICH THE PRODUCT IS INSTALLED.CONTACT MEGGITT SENSING SYSTEMS FOR FURTHER INFORMATION.THE LENGTHS OF ALL CABLES (INTEGRAL CABLES AND/OR CABLE ASSEMBLIES)INSTALLED IN POTENTIALLY EXPLOSIVE ATMOSP