Baker Hughes Masoneilan SVI3 User manual

ES-817
Rev D
SPECIAL INSTRUCTIONS FOR INSTALLING MASONEILAN
SVI3 IN AREAS WHERE THERE IS A POTENTIAL FOR EXPLOSIVE GAS AND
DUST ATMOSPHERES

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1INTRODUCTION ............................................................................................................................................3
2MODEL CODES COVERED BY THIS DOCUMENT: ............................................................................................3
3REQUIREMENTS FOR ALL INSTALLATIONS.....................................................................................................4
4FLAME PROOF AND DUST IGNITION PROOF REQUIREMENTS: ......................................................................5
4.1 GENERAL ............................................................................................................................................................5
4.2 ENTRIES AND CABLE GLANDS..................................................................................................................................5
4.3 MAIN COVER INSTALLATION...................................................................................................................................5
5INCREASED SAFETY/NON-INCENDIVE EQUIPMENT.......................................................................................6
5.1 GENERAL ............................................................................................................................................................6
5.2 INCREASED SAFETY WIRING INSTRUCTIONS................................................................................................................6
6INTRINSICALLY SAFE REQUIREMENTS: ..........................................................................................................6
6.1 I.S. BARRIERS ......................................................................................................................................................6
6.2 INSTALLED MODULE BASED TEMPERATURE RATINGS ADJUSTMENTS: .............................................................................6
7AGENCY MARKINGS......................................................................................................................................7
7.1 AGENCY APPROVALS.............................................................................................................................................7
7.2 US AND CANADIAN STANDARDS..............................................................................................................................9
7.3 ENCLOSURE RATINGS ............................................................................................................................................9
7.4 OPERATING RANGES .............................................................................................................................................9
8INTRINSICALLY SAFE INSTALLATION WIRING REQUIREMENTS.................................................................... 10
8.1 HAZARDOUS LOCATION .......................................................................................................................................11
8.2 FIELD WIRING....................................................................................................................................................11
8.3 ENTITY REQUIREMENT.........................................................................................................................................12
8.4 INSTALLATION RESTRICTION..................................................................................................................................12
9MAINTENANCE & REPAIR ........................................................................................................................... 13
OPTIONS MODULE.......................................................................................................................................................13
USER INTERFACE MODULE.............................................................................................................................................13
BLIND USER INTERFACE COVER.......................................................................................................................................13
MAIN ELECTRONICS MODULE ........................................................................................................................................13
THREADED END COVER.................................................................................................................................................13
CONDUIT ENTRY PLUG..................................................................................................................................................13
PNEUMATICS MODULE .................................................................................................................................................13
10 MAINTENANCE CONNECTION.....................................................................................................................13
11 REVISION HISTORY ..................................................................................................................................... 13

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1Introduction
This document covers the requirements for safe installation, repair and operation of the SVI3 valve
positioner as it relates to operation in areas where there is a potential for explosive atmosphere or
inflammable dust. Adherence to these requirements assures that the SVI3 will not cause ignition of the
surrounding atmosphere. Hazards related to control of the process are beyond the scope of this manual.
For mounting instructions on specific valves refer to the mounting instructions supplied with the
mounting kit. Mounting does not affect the suitability of the SVI3 for use in a potentially hazardous gas
or dust atmospheres.
For language translation assistance contact your local representative or email
[e-mail].
Pour assistance avec la traduction, contactez votre représentant local ou envoyez un e-mail à
[e-mail].
The SVI3 positioner is designed by:
Dresser LLC
12970 Normandy Blvd.
Jacksonville FL 32221 USA
The SVI3 Positioner is manufactured in India
2Model Codes Covered by this Document:
Model Code: SVI3-ABCDEFGH –Not all combinations are available
Identifier
Option
Description
A
1-3
Indicates internal Firmware Style:
1-Standard
2-Advanced
3-Online Valve Diagnostics
B
1
Indicates Pneumatic Train/Capacity/Fault State
1. Single Acting, STD Flow (Cv >=0.4), De-energize on fault
C
1-2
Indicates Instrument Air/ Gas Capture / Temperature:
1. Compressed Air or Natural Gas, Direct Bleed, Std Temp (-40°C to 85°C), Nitrile Diaphragm
2. Compressed Air Only, Direct Bleed, Extreme Temp (-55°C to 85°C), Silicone Diaphragms
D
1-2
Indicates Construction/Display:
1. Aluminum / No Display
2. Aluminum / Display with local interface
E
1
Communication:
1. 4-20 mA HART Communication Protocol
F
1-2
Indicates Input/ Output Options:
1. None
2. 4-20mA Analog Output (Position Retransmit) Qty (1)
-Config Switched Outputs Qty (2)
-Config Switched Input Qty (1)
-Analog Remote Mount Capable Qty (1)
G
0-1
Indicates Agency Approvals:
0. None
1. Hazardous Area Uni-label (NEC/CEC {US, Canada}, ATEX, IECEx)
H
X
Indicates Other Agency Approvals:
X. Any Single Character

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3Requirements for All Installations
Installation and maintenance must be performed only by qualified personnel. Area Classification,
Protection Type, Temperature Class, Gas Group, and Ingress protection must conform to the data
indicated on the label as well as within this document.
Wiring and conduit must conform to all local and national codes governing the installation. Wiring must
be rated for at least 5°C above the highest expected ambient temperature.
(ATTENTION –LE CABLAGE D'ALIMENTATION DOIT ETRE ÉVALUÉ POUR UNE TEMPERATURE AU MOINS
5°C PLUS QUE LA TEMPERATURE AMBIANTE MAXIMALE)
SVI3 has been certified to a minimum ambient temperature of -55 °C, however, there are two
temperature models available, standard (-40 °C) and extended temperature range (-55 °C). For optimal
performance, the minimum ambient as marked on the label should be followed.
Where the protection type depends on wiring glands, the glands must be certified for the type of
protection required.
Under normal operation compressed supply gas is vented from the SVI3 to the surrounding area. If
natural gas is used as the supply gas additional precautions or specialized installations may be required.
Hazardous area consideration is the responsibility of the end-user. Area ventilation and other safety
measures may be required to maintain a safe environment.
Verify that the markings on the label are consistent with the application.
Verify that the air supply pressure cannot exceed the marking on the label.
The end-user shall permanently mark the serial plate as appropriate based on the protection type
chosen for the installation. The small circles next to the various groupings of protection types are
provided for this purpose. Once the type has been marked, it cannot be changed.
It must be ensured the thermal effect of the process temperature does not result in exceeding the SVI3
specified ambient temperature .
"X" Marking - the SVI3 enclosure contains greater than 10% aluminum; care must be taken during
installation to avoid impacts or friction that could create an ignition source.
"X" Marking - Potential Electrostatic Charge Hazard –For safe operation use only wet cloth when
cleaning or wiping device, and only when local conditions around the device are free of potentially
explosive atmospheres. Do not use dry cloth. Do not use solvent.
"X" Marking - Instruments installed in dusty hazardous areas, Zones 20, 21 and 22; must be cleaned
regularly to prevent the buildup of dust layers on any surface. To avoid the risk from electrostatic
discharge, you must follow the guidance as detailed in IEC/TS 60079-32-1.
Before putting into service, all of the SVI3 covers should be securely fastened to the housing to maintain
ingress protection.
! WARNING!
Failure to adhere to the requirements listed in this document may cause loss of life and
property.

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4Flame Proof and Dust Ignition Proof Requirements:
4.1 General
The 1/2-inch NPT fittings must be torqued until they are wrench tight. The main housing cover
must be clean and free of corrosive products.
The SVI3 chassis must be securely electrically connected to earth ground. Ground screws/lugs
are provided on the enclosure in the following two locations as shown:
(Shown with cover removed)
4.2 Entries and Cable Glands
Certified cable glands are required based on the hazardous area the device is installed in. The
½” NPT conduit plug supplied with the SVI3 was certified as part of the product.
4.3 Main Cover Installation
Verify that cover seal (o-ring) is properly installed into the groove in the cover. The cover must
be screwed into the housing until it contacts the top-surface of the housing (i.e. it is “metal to
metal” with the housing). Once the cover is installed, ensure that the cover lock screw is
secured. This maintains the ingress protection level and integrity of the flameproof enclosure.
Ground Screw/Lugs

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5Increased Safety/Non-Incendive Equipment
5.1 General
Check to ensure all electrical connections are made to approved circuits which meet local and
national installation codes.
Div 2 (Zone 1) non-incendive installations require that electrical connections be performed in
accordance with and meet all local and national electrical codes.
5.2 Increased Safety Wiring Instructions
DO NOT CONNECT OR DISCONNECT WHEN ENERGIZED
Required Terminal Torque Values:
4-20 mA Input Terminals:
oNominal: 1.13 N-m
Options Terminal Connections:
oMin: 0.5 N-m
oMax: 0.6 N-m
Conductor Size Range:
4-20 mA Input Terminals: 22 AWG to 12 AWG
Options Terminal Connections: 26 AWG to 14 AWG
6Intrinsically Safe Requirements:
6.1 I.S. Barriers
Ensure that proper I.S. barriers are installed, and the field wiring meets local and national codes
for an I.S. installation. Never install a device which has previously been installed without an IS
barrier in an intrinsically safe system.
6.2 Installed Module Based Temperature Ratings Adjustments:
The SVI3 positioner has different ratings depending on the configuration of the unit. By using
inspection, in conjunction with the unit’s model code, a user will be able to determine if an
Options Module is installed. See applicable temperature ratings designated in Section 7.1.

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7Agency Markings
7.1 Agency Approvals
Agency testing, and approval process was performed by Intertek Testing Group.
Flameproof/ExplosionProof) for Gas
Temperature Classification
IEC
Ex db ia IIC T6…T4 Gb
T4 Ta= -55°C to 85°C
ATEX
II 2G Ex db ia IIC T6...T4 Gb
T5 Ta= -55°C to 75°C
US/NEC
Class I, Division I, Groups A, B, C, D T6...T4
T6 Ta= -55°C to 60°C
Class I, Zone 1, AEx db ia IIC T6...T4 Gb
Can/CEC
Class I, Division I, Groups, A, B, C, D T6…T4
Class I Zone 1, Ex db ia IIC T6…T4 Gb
Protection by Enclosure (Explosive Dust)
Temperature Classification
IEC
Ex ia tb IIIC T20091°C Db
T4 Ta= -55°C to 85°C
ATEX
II 2D Ex ia tb IIIC T20091°C Db
T5 Ta= -55°C to 75°C
US/NEC
Class II Division 1 Groups E, F, G T6...T4
Class III
Zone 21, AEx ia tb IIIC T20091°C Db
T6 Ta= -55°C to 60°C
Can/CEC
Class II Division 1 Groups E, F, G T6…T4
Class III
Zone 21, Ex ia tb IIIC T20091°C Db
Intrinsically Safe (Explosive Gas) –Base Positioner
Temperature Classification
IEC
Ex ia IIC T6...T4 Ga
T4 Ta= -55°C to 85°C
ATEX
II 1G Ex ia IIC T6…T4 Ga
T5 Ta= -55°C to 75°C
US/NEC
Class I, Division I, Groups A, B, C, D T6...T4
T6 Ta= -55°C to 60°C
Class I, Zone 0, AEx ia IIC T6...T4 Ga
Can/CEC
Class I, Division 1, Groups A, B, C, D T6…T4
Class I, Zone 0, Ex ia IIC T6…T4 Ga
Intrinsically Safe (Explosive Gas) –Options Module Installed
Temperature Classification
IEC
Ex ia IIC T6...T4 Ga
T4 Ta= -55°C to 85°C
ATEX
II 1G Ex ia IIC T6…T4 Ga
T5 Ta= -55°C to 65°C
US/NEC
Class I, Division I, Groups A, B, C, D T6...T4
T6 Ta= -55°C to 50°C
Class I, Zone 0, AEx ia IIC T6...T4 Ga
Can/CEC
Class I, Division 1, Groups A, B, C, D T6…T4
Class I, Zone 0, Ex ia IIC T6…T4 Ga
Intrinsically Safe (Explosive Dust) –Base Positioner
Temperature Classification
IEC
Ex ia IIIC T20091°C Da
T4 Ta= -55°C to 85°C
ATEX
II 1D Ex ia IIIC T20091°C Da
T5 Ta= -55°C to 75°C
US/NEC
Class II Division 1, Groups E, F, G T6...T4
Class III
Zone 20, AEx ia IIIC T20091°C Da
T6 Ta= -55°C to 60°C
Can/CEC
Class II Division 1 Groups E, F, G T6…T4
Class III
Zone 20, Ex ia IIIC T20091°C Da

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Intrinsically Safe (Explosive Dust) –Options Module Installed
Temperature Classification
IEC
Ex ia IIIC T20091°C Da
T4 Ta= -55°C to 85°C
ATEX
II 1D Ex ia IIIC T20091°C Da
T5 Ta= -55°C to 65°C
US/NEC
Class II Division 1, Groups E, F, G T6...T4
Class III
Zone 20, AEx ia IIIC T20091°C Da
T6 Ta= -55°C to 50°C
Can/CEC
Class II Division 1 Groups E, F, G T6…T4
Class III
Zone 20, Ex ia IIIC T20091°C Da
Increased Safety/Non-Incendive Marking for Explosive Gas/Dust
Temperature Classification
IEC
Ex ec ic IIC T6…T4 Gc
T4 Ta= -55°C to 85°C
ATEX
II 3G Ex ec ic IIC T6…T4 Gc
T5 Ta= -55°C to 75°C
US/NEC
Class I Division 2 Groups A, B, C, D T6...T4
Class I, Zone 2, AEx ec ic IIC T6...T4 Gc
T6 Ta= -55°C to 60°C
Can/CEC
Class I Division 2 Groups A, B, C,D T6…T4
Class I, Zone 2, Ex ec ic IIC T6...T4 Gc
US/NEC
Class II Division 2 Groups F, G T6…T4
Class III
Zone 22 IIIB T20091°C
Can/CEC
Class II Division 2 Groups F, G T6…T4
Class III
Zone 22 IIIB T20091°C

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7.2 US and Canadian Standards
5019817
Conforms to UL STDs 50, 50E, 61010-1, 60079-0, 60079-1, 60079-11, 1203, 60079-31, 60079-7, and
121201
Certified to CSA STDs C22.2#94.1, 94.2, 61010-1-12, 60079-0, 60079-1, 60079-11, 30, 60079-31, 25,
60079-7, and 213
7.3 Enclosure Ratings
NEMA 4X, IP66, Type 4X
7.4 Operating Ranges
7.4.1 Temperature
-55°C to +85°C
7.4.2 Input Voltage
30 volts
7.4.3 Current
4 to 20mA
7.4.4 Supply Pressure
20 –120 PSIG
Clean instrument air or Natural gas shall be used as supply sources.

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8Intrinsically Safe Installation Wiring Requirements
Each intrinsically safe cable must include a grounded shield or be run in a separate metal conduit.
SVI 3 Housing
SVI3 Main Module
TRANSMITTER
+
-
NON-HAZARDOUS LOCATION - UNSPECIFIED
EXCEPT THAT BARRIERS MUST NOT BE
SUPPLIED FROM NOR CONTAIN UNDER NORMAL
OR ABNORMAL CONDITIONS A SOURCE OF
POTENTIAL WITH RESPECT TO EARTH IN
EXCESS OF 250 VOLTS RMS OR 250 VOLTS DC
HAZARDOUS
LOCATION
SEE 8.1, 8.2
SVI3 Options
Module
+
-
1
2
3
R
E
M
Remote
Mount 4-20 mA
OUT
SW 1 + 2 PV
1-5 VDC
OPTIONAL HAND
HELD
COMMUNICATOR
1
24
3
1
24
3
1
24
3
Optional
Field Load
SEE NOTE
8.3.2
Certified Active or
Passive IS Barrier
24 VDC from
Control System
1 to 5 Volts to Control
System
24 VDC from
Control System
Feedback to
Control System
Optional Intrinsically Safe Process
Variable Transmitter
LOAD
Optional 1-5 Volt
Process Variable
Input to SVI3
250
Equi-
Potential
SEE NOTE
8.3.2
DI
Simple
Passive
Apparatus
(Switch,
Relay)
1
24
3
Certified Active or
Passive IS Barrier
24 VDC from
Control
System
1 to 5 Volts
POSTION
FEEDBACK to
Control System
1
24
34-20 mA SETPOINT from
Control System
OPTIONAL HAND
HELD
COMMUNICATOR
4-20 mA
IN
+-
Certified Active or
Passive IS Barrier
+-+-+-

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8.1 Hazardous Location
Refer to the device label for the description of the environment in which the device may be installed.
8.2 Field Wiring
Intrinsically Safe wiring must be made with grounded cable or installed in grounded metal conduit.
(CHAQUE CABLE A SECURITE INTRINSEQUE DOIT INCLURE UN BLINDAGE MIS A LA TERRE OU DOIT
FONCTIONNER DANS UN CONDUIT EN METAL SEPARE) The installation including the barrier earthing
requirements must comply with the installation requirements of the country of use.
Requirements:
(USA): ANSI/ISA RP12.6 Installation of Intrinsically Safe Systems for Hazardous (Classified) Locations and the
National Electrical Code, ANSI/NFPA 70.
CSA (Canada): Canadian Electrical Code Part 1.
ATEX (EU): Intrinsically safe installations must be installed per EN60079-10 and EN60079-14 as they apply to the
specific category.
8.2.1 4 to 20mA Input Terminals
These terminals power the SVI3 and are equipped on the Main Module. This is a standard
component within every SVI3 product.
Entity/NIFW Parameters:
Ui
Ii
Pi
Ci
Li
30 Vdc
125 mA
900 mW
6.5 nF
1 µH
8.2.2 Options Module:
All functions listed in this section are included with the Options Module peripheral.
WARNING: Using the Options Module in an I.S. installation will result in reduced T ratings from the base model.
Please refer to Section 7.1 for ratings.
8.2.2.1 SW Output Terminals
There are two independent isolated switch contact outputs labeled SW#1 and SW#2. The
switches are polarity sensitive, conventional current flows into the plus terminal.
Entity/NIFW Parameters:
Ui
Ii
Pi
Ci
Li
30 Vdc
125 mA
385 mW
5.1 nF
2.4 µH
8.2.2.2 Position Retransmit (0-20mA Output) Terminals
The position retransmit returns the measured position represented by a current value between
0-20mA. A certified active or passive barrier may be used for this connection.
Entity/NIFW Parameters:
Ui
Ii
Pi
Ci
Li
30 Vdc
125 mA
650 mW
9 nF
1 µH

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8.2.2.3 Analog Input Process Variable Terminals:
The AI PV circuitry is an additional option for providing a transmitter input/signal to the SVI3
positioner.
Entity/NIFW Parameters:
Ui
Ii
Pi
Ci
Li
30 Vdc
125 mA
900 mW
1 nF
0 µH
8.2.2.4 Digital Input Terminals:
By opening or closing the circuit input to the digital input terminals, the SVI3 can react according
to the settings programmed by the customer.
Entity/NIFW Parameters:
Uo
Io
Co
Lo
Po
5.4 Vdc
5.2 mA
64 µF
500 µH
7 mW
8.2.2.5 SVI3 Remote Terminals:
The remote position functionality is designed to be used with the Masoneilan SVI-II Remote
Mount Position Sensor. The SVI-II Remote Mount Position Sensor is sold seperately from the
SVI3 positoner, and allows for a greater level of flexibility during the installation process. The
Remote Positioning circuitry is located on the SVI3 Options card add on.
Entity/NIFW Parameters:
Uo
Io
Co
Lo
Po
5.4 Vdc
5.8 mA
64 µF
500 µH
8 mW
8.3 Entity Requirement
Cable capacitance and inductance plus the I.S. apparatus unprotected capacitance (Ci) and inductance
(Li) must not exceed the allowed capacitance (Ca) and inductance (La) indicated on the associated
apparatus. If the optional Hand-Held Communicator is used on the Hazardous Area side of the barrier,
then the capacity and inductance of the communicator must be added, and the communicator must be
agency approved for use in the hazardous area. Also, the current output of the Hand-Held
Communicator must be included in the current output of the associated equipment.
The barriers may be active or passive and from any certified manufacturer as long as the barriers comply
with the listed entity parameters.
8.4 Installation Restriction
A device which has previously been installed without an approved IS barrier must NEVER be used
subsequently in an intrinsically safe system. Installing the device without a barrier can permanently
damage the safety related components in the device making the device unsuitable for use in an
intrinsically safe system.

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9Maintenance & Repair
NOTE: Only qualified service personnel are permitted to make repairs
WARNING: EXPLOSION HAZARD –SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR USE
IN A HAZARDOUS LOCATION.
REPAIR OF THE FLAMEPATHS OF THE EQUIPMENT IS NOT PERMITTED.
The addition or replacement of the any of the spare parts listed below are the only field repairs
permitted. Replace ONLY with genuine Baker Hughes Masoneilan branded parts supplied by Baker
Hughes. This includes the assemblies mentioned here but also mounting screws and gaskets. No
substitutions with non-Masoneilan branded parts are permitted. Detailed replacement procedures are
described in the Instruction Manual and within each of the spare parts kits.
For more information contact Masoneilan Dresser LLC/ 12970 Normandy Blvd. Jacksonville FL 32221
USA. Dresser LLC.
For assistance, contact the nearest sales office, your local representative or email
[e-mail]. Visit our web page at http://valves.bakerhughes.com/
Approved Spare Parts Modules:
Options Module
User Interface Module
Blind User Interface Cover
Main Electronics Module
Threaded End Cover
Conduit Entry Plug
Pneumatics Module
10 Maintenance Connection
The Main Module contains a connection point for the installation of new firmware to the unit during its
lifecycle. It is not intended for field use and has been designed to prevent connection to field wiring.
This connection is not intended for customer use.
11 Revision history
The table below describes the revision history of this document.
A - Added M - Modified D - Deleted
Rev.
Changed
figure,
table,
chapter
A
M
D
Title or brief description
Date
-
-
-
Initial Release
6/14/18
A
§8.2.2.1
M
Modify Entity Parameter Ci from 9 nF to 5.1 nF to match Rev. B Design
8/16/18

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B
§2 & 4.1
M
Modify Model Code Identifier “G” and “H”, added statement on
replacement of NPT’s
12/10/20
C
§2 & 4.1
D,M
ECO-0043804 - Removed note on use of Teflon tape, changed Model Code
Identifier “H” such that any single character can be used, updated markings.
2/5/21
D
§8.2.2
M
Revision to entity parameters after final IS review by Intertek
2/26/21