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YOKOGAWA ProSafe-RS Technical Information

YOKOGAWA ProSafe-RS Technical Information

Explosion protection
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TI 32S01J30-01E
ProSafe-RS/ProSafe-RS Lite
Explosion Protection
Yokogawa Electric Corporation
2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan
TI 32S01J30-01E
©Copyright July 2006 (YK)
31st Edition Nov. 10, 2022 (YK)

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  • Page 1 ProSafe-RS/ProSafe-RS Lite Technical Explosion Protection Information TI 32S01J30-01E Yokogawa Electric Corporation TI 32S01J30-01E 2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan ©Copyright July 2006 (YK) 31st Edition Nov. 10, 2022 (YK)

  • Page 2: Introduction

    Introduction This book describes explosion protection compliance of ProSafe-RS/ProSafe-RS Lite. The engineering practice of explosion protection is regulated in each country, and in principle, construction technique including wiring should be done in accordance with the safety standards. When you build and explosion protection system for a real job, select products so as to comply with the standards of the country in which it is used, and check for construction technique beforehand.

  • Page 3: Safety Precautions

    • If any protection or safety circuit is required for the system controlled by the product or for the product itself, prepare it separately. • Be sure to use the spare parts approved by Yokogawa Electric Corporation (hereafter simply referred to as YOKOGAWA) when replacing parts or consumables.
  • Page 4 Symbols in this Book  This book has the following symbols. WARNING Indicates precautions to avoid a danger that may lead to death or severe injury. CAUTION Indicates precautions to avoid a danger that may lead to minor or moderate injury or property damage.
  • Page 5 Considerations for Using This Product in Safety  Power Supply Wiring  WARNING The connection of power cables and the selection of power cables must be done in accordance with this book and the Installation Guidance, and implement so as to comply with the standards and laws about explosion protection in the country or the area where the cables are laid.

  • Page 6: Trademark

    Some drawings depicted in the user’s manual may be partially emphasized, simplified, or omitted for the convenience of description. Trademark Trademark Acknowledgments  The names of corporations, organizations, products and logos herein are either registered trademarks or trademarks of Yokogawa Electric Corporation and their respective holders. TI 32S01J30-01E Mar. 27, 2020-00...

  • Page 7: Table Of Contents

    Toc-1 Explosion Protection TI 32S01J30-01E 31st Edition CONTENTS Introduction ......................i Safety Precautions ....................ii Trademark ........................v Explosion Protection Instrumentation ............1-1 Explosion Protection Standards ..............1-1 Explosion Protection Construction ..............1-2 Overview of Connection to the Devices Installed in a Hazardous Area ..1-4 Explosion Protection Instrumentation in Zone 2/Division 2 ....
  • Page 8 Toc-2 Appendix 2. ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” ..............App.2-1 Appendix 2.1 ATEX Ex “ec” / UKEX Ex “ec” Instruction of SCU (SSC50/SSC57/SSC60/L1SC70) and FIO Node Unit ..App.2-1 Appendix 2.2 ATEX Ex “ec” / UKEX Ex “ec” Instruction of SCU (S2SC70) and N-IO Node Unit .................App.2-7 Appendix 2.3 ATEX Ex “ec”...

  • Page 9: Explosion Protection Instrumentation

    FM Approval Standard for Non-Incendive equipment and satisfy the protection ATEX Ex “ec” or ATEX Type “n”. Also the ProSafe-RS/ProSafe-RS Lite equipment have acquired UKEX Ex “ec” or UKEX Type “n”.Therefore they can be installed in Zone 2 or Division 2 hazardous areas.

  • Page 10: Explosion Protection Construction

    “ec”, and Type “n” regulations are adopted as explosion protection construction. The adoption of NI, Ex “ec”, and Type “n” makes it possible to install ProSafe-RS/ProSafe-RS Lite in Division 2 or Zone 2 that covers most hazardous areas. This widens a more variety of instrumentation.
  • Page 11 1. Explosion Protection Instrumentation Vnet/IP Bus1 <Non-Hazardous area> Bus2 Cabinet <Hazardous area Class I, Division 2> L2SW for Bus1 L2SW for Bus2 Cabinet SEC401/L1EC401 SNT401/L1NT401 Fiber-optic cable Unit for Optical Bus Repeater Module SNT501 /L1NT501 SSB401/L1SB401 SSB401/L1SB401 +T Branch +T Branch SEA4D SEA4D L2SW:...

  • Page 12: Overview Of Connection To The Devices Installed In A Hazardous Area

    Connection of FIO equipment for ATEX, IECEx, and UKEX  ProSafe-RS/ProSafe-RS Lite Ex “ec”/Type “n” compliant equipment can be connected to the intrinsic safety equipment installed in Zone 0, Zone 1 and Zone 2 using a safety barrier and explosion-proof wiring as shown in the following figures.
  • Page 13 1. Explosion Protection Instrumentation ProSafe-RS/ProSafe-RS Lite Ex “ec”/Type “n” compliant equipment(24 V DC supplied model) can be installed in Zone 2 by mounting in a keyed metal cabinet with protection rating of IP54 or higher. Zone 0 Zone 1 Zone 2...
  • Page 14 Division 2. For the connection to an NI-compliant device, it is necessary to compare parameters between the device installed in a hazardous area and ProSafe-RS/ ProSafe-RS Lite I/O module and evaluate whether connection is possible or not.
  • Page 15 SCB100/SCB110 and is compatible with Zone 1 installation. When using these elements to realize the wiring diagnosis of the DI function, check the behavior with the actual connection environment before using. Please contact with Yokogawa about the specification of SCB100/SCB110. Zone0...
  • Page 16 1. Explosion Protection Instrumentation Zone0 Zone1 Zone2 Non-Hazardous Area S2BN1D Base plate Safety Intrinsic Barrier safety device Intrinsic Safety safety Barrier device Intrinsic Safety safety Barrier device Ex "ec" Type “n” device Flameproof device F010306E.ai Explosion-proof wiring that is defined in IEC/EN 60079-14 or the rules/standards of each country or region. Figure Connection of S2BN1D for ATEX, IECEx, and UKEX (2) TI 32S01J30-01E Dec 3, 2021-00...
  • Page 17 S2BN1D base plate can be connected to the NI-compliant devices installed in Division 2. For the connection to an NI-compliant device, it is necessary to compare parameters between the device installed in a hazardous area and ProSafe-RS I/O module and evaluate whether connection is possible or not.
  • Page 18 1-10 1. Explosion Protection Instrumentation Overview of Connecting S2BN4D base plate for ATEX, IECEx, and UKEX  Intrinsic safety (hereinafter I.S.) barriers (*1) of MTL products from Eaton Electric Limited which can be mounted to the base plate (S2BN4D), comply with I. S. explosion protection standard (*2). I.
  • Page 19 1-11 1. Explosion Protection Instrumentation Overview of Connecting S2BN5D base plate for ATEX, IECEx, and UKEX  S2BN5D base plate for barrier can be connected to the I.S./Type “n” device installed in the hazardous area with explosion-proof wiring and can be installed in Zone 2 by mounting in a keyed metal cabinet with protection rating of IP54 or higher as shown in the following figures.
  • Page 20 1-12 1. Explosion Protection Instrumentation Overview of Connecting S2BN5D barrier base plate for US (FM) and Canada  (FM) S2BN5D base plate for barrier can be connected to the devices installed in Division 1 and Division 2. For connecting to the devices installed in Division 1 or Division 2, it is necessary to compare intrinsic safety parameters between the devices installed and S2BN5D to evaluate whether connection is possible or not.

  • Page 21: Explosion Protection Instrumentation In Zone 2/Division 2

    A safety control unit, a safety node unit, unit for Optical Bus Repeater Module, an I/O module, an optical repeater, an N-IO node, and N-IO field enclosure in the ProSafe-RS/ ProSafe-RS Lite have acquired NI certificates of the following standards from FM. The...
  • Page 22 2. Explosion Protection Instrumentation in Zone 2/Division 2 Precautions  • To install a device in accordance with the standards above, the device needs to be accommodated in a keyed metal cabinet and installed. As for US (FM), it is necessary to use a cabinet complying with FM Class 3810 and FM Class 3600 or approved by FM or local testing authorities for explosion-proof products.
  • Page 23 2. Explosion Protection Instrumentation in Zone 2/Division 2 WARNING WARNING -EXPLOSION HAZARD. DO NOT REMOVE OR REPLACE LAMPS OR FUSES UNLESS POWER HAS BEEN DISCONNECTED OR WHEN A FLAMMABLE OR COMBUSTIBLE ATMOSPHERE IS PRESENT. WARNING WARNING -EXPLOSION HAZARD. DO NOT DISCONNECT EQUIPMENT WHEN A FLAMMBLE OR COMBUSTBLE ATMOSPHERE IS PRESENT.
  • Page 24 2. Explosion Protection Instrumentation in Zone 2/Division 2 NI approved Products and Their Configuration Example  The figure below is an example of the configuration of NI approved products which can be installed in hazardous areas. For details, refer to Appendix for NI approved products. Vnet/IP Bus1 <Non-Hazardous area>...
  • Page 25 2. Explosion Protection Instrumentation in Zone 2/Division 2 Power Supply Wiring  The power cables for the safety control unit, safety node unit, unit for optical ESB bus repeater module, and N-IO node must be wired from a non-hazardous area by using specified Division 2, explosion-proof wiring such as conduit wiring.
  • Page 26 2. Explosion Protection Instrumentation in Zone 2/Division 2 Parameters in NI Device Connection  Since giving and receiving energy affects NI properties, parameters display is necessary for NI device connection to ensure the properties. To display parameters, NI devices are divided into one that gives energy and the other that receives energy.
  • Page 27 2. Explosion Protection Instrumentation in Zone 2/Division 2 Parameters of the Device which Receives Energy  Vmax: maximum input voltage Maximum voltage to maintain the NI properties of the device Imax: maximum input current Maximum current to maintain the NI properties of the device Ci: maximum internal capacitance Maximum internal capacitance of the devices that are considered to be connected to the NI circuit (the external wiring) when the load device is connected to the NI circuit (the external...
  • Page 28 As an example, we show the case where SAI143 I/O module, a power input module and EJA, a differential pressure transmitter of Yokogawa Electric Corporation are connected. EJA is connected to circuit of SAI143 via 100 m cable, and installed in Class I, Division 2 hazardous area.
  • Page 29 2. Explosion Protection Instrumentation in Zone 2/Division 2 Example of Connection  Connecting a ProSafe-RS/ProSafe-RS Lite equipment and a Field Device  Installed in Division 2 <Hazardous area Class I, Division 2> <Non-hazardous area> Cabinet SEC401/L1EC401 SSB401/L1SB401 +T Branch Explosion-proof wiring can be installed for devices that do not indicate electrical parameters.
  • Page 30 2-10 2. Explosion Protection Instrumentation in Zone 2/Division 2 Installing a ProSafe-RS/ProSafe-RS Lite equipment and a Field Device in  Division 2 Vnet/IP Bus1 <Non-Hazardous area> Bus2 Fiber-optic cable or Conduit wiring Cabinet <Hazardous area Class I, Division 2> L2SW for Bus1...

  • Page 31: Ex "Ec", Type "N

    Explosion-proof specifications, Complied standard, and Compliant  Products The ProSafe-RS/ProSafe-RS Lite safety unit, safety node unit, I/O modules and optical repeater comply with the following standards. ATEX Ex “ec”, ATEX Type “n” ...
  • Page 32 Type “n” compliant devices. Refer to the latest edition of IM 32Q01J30-31E for the installation, the precaution, maintenance and repair for N-IO field enclosure. This document can be found at the following web site: https://partner.yokogawa.com/ TI 32S01J30-01E Nov. 10, 2022-00...
  • Page 33 2-13 2. Explosion Protection Instrumentation in Zone 2/Division 2 Ex “ec”/Type “n” Compliant Products  The figure below is an example of the configuration of Ex “ec”/Type “n” compliant products that can be installed in hazardous areas. See the table “the list of Ex “ec”/Type “n” compliant products”...
  • Page 34 2-14 2. Explosion Protection Instrumentation in Zone 2/Division 2 <Non-hazardous area> <Hazardous area Zone 2> Cabinet Cabinet L2SW S2EN501 L2SW Fiber-optic cable S2NN30D 24 V DC Power SEC401 Supply 24 V DC Power 24 V DC S2BN1D Supply Power Transient Protection Supply Transient...
  • Page 35 Wiring should be installed to conform to IEC/EN 60079-14 and the rules/standards of each country or region. After wiring, check it out according to the checklist in IEC/EN60079-17. Example of a Connection  Connecting a ProSafe-RS/ProSafe-RS Lite equipment and a Field Device  Installed in Zone 2 <Hazardous area Zone 2>...
  • Page 36 2-16 2. Explosion Protection Instrumentation in Zone 2/Division 2 Installing ProSafe-RS/ProSafe-RS Lite equipment and Associated Field  Devices in Zone 2 Vnet/IP Bus1 <Non-Hazardous area> Bus2 Cabinet <Hazardous area Zone 2> L2SW for Bus1 L2SW for Bus2 Cabinet SEC401/L1EC401 SNT401/L1NT401...

  • Page 37: Intrinsic Safety Explosion Protection Instrumentation

    3. Intrinsic Safety Explosion Protection Instrumentation Intrinsic Safety Explosion Protection Instrumentation Intrinsic safety explosion protection is an electric circuit and a construction, which made so as not to ignite to gas by controlling the energy of electric circuit, if sparks, arc, and heat occur at the time of normal operating and an accident (short-circuit, earth fault, burnout).

  • Page 38: Intrinsic Safety Explosion Protection Instrumentation Using Barrier Base Plates

    3. Intrinsic Safety Explosion Protection Instrumentation Intrinsic Safety Explosion Protection Instrumentation Using Barrier base plates 3.1.1 Intrinsic Safety Explosion Protection of ATEX/UKEX Standard Base plate for barrier (S2BN5D)  Base plate for barrier (S2BN5D) is complied with I. S. explosion protection standard. P+F’s I. S. barriers can be connected to the I.

  • Page 39: Intrinsic Safety Explosion Protection Of Iec Standard

    3. Intrinsic Safety Explosion Protection Instrumentation 3.1.2 Intrinsic Safety Explosion Protection of IEC Standard Base plate for barrier (S2BN5D)  Base plate for barrier (S2BN5D) is complied with I. S. explosion protection standard. P+F’s I. S. barriers can be connected to the I. S. equipment installed in the hazardous area with explosion- proof wiring.

  • Page 40: Intrinsic Safety Explosion Protection Of Us (Fm) Standard

    3. Intrinsic Safety Explosion Protection Instrumentation 3.1.3 Intrinsic Safety Explosion Protection of US (FM) Standard S2BN5D base plate for barrier  S2BN5D base plate for barrier can be connected to the I.S. equipment installed in the hazardous area with explosion-proof wiring and can be installed in Division 2 by mounting in a keyed metal cabinet approved by approval authorities.

  • Page 41: Intrinsic Safety Explosion Protection Of Canada (Fm) Standard

    3. Intrinsic Safety Explosion Protection Instrumentation 3.1.4 Intrinsic Safety Explosion Protection of Canada (FM) Standard S2BN5D base plate for barrier  S2BN5D base plate for barrier can be connected to the I.S. equipment installed in the hazardous area with explosion-proof wiring and can be installed in Division 2 by mounting in a keyed metal cabinet approved by approval authorities.

  • Page 42: Intrinsic Safety Explosion Protection Of Eac Ex

    3. Intrinsic Safety Explosion Protection Instrumentation 3.1.5 Intrinsic Safety Explosion Protection of EAC Ex Base plate for barrier (S2BN5D)  Base plate for barrier (S2BN5D) is complied with I. S. explosion protection standard. P+F’s I. S. barriers can be connected to the I. S. equipment installed in the hazardous area with explosion proof wiring.

  • Page 43: Intrinsic Safety Explosion Protection Of Kcs

    3. Intrinsic Safety Explosion Protection Instrumentation 3.1.6 Intrinsic Safety Explosion Protection of KCs Base plate for barrier (S2BN5D)  Base plate for barrier (S2BN5D) is complied with I. S. explosion protection standard. P+F’s I. S. barriers can be connected to the I. S. equipment installed in the hazardous area with explosion proof wiring.

  • Page 44: Intrinsic Safety Explosion Protection Instrumentation Using Barriers

    3. Intrinsic Safety Explosion Protection Instrumentation Intrinsic Safety Explosion Protection Instrumentation Using Barriers Category of Barriers  Classified roughly, barriers includes Zener barriers and insulating barriers (intrinsic safety barriers). Select the best one as your system, with the knowledge of their future. (1) Feature of Zener barriers Zener barrier has a simple construction which consists of just Zener Diode and resistance.
  • Page 45 3. Intrinsic Safety Explosion Protection Instrumentation (5) Failure rate The construction of Zener barriers is simple, because they carry out the function for security just with Zener Diode and resistance. On the other hand, insulating barriers consist of various parts, because they have the function of insulation and energy restriction. Therefore, the failure rate of insulating barriers is generally higher than that of Zener barriers.
  • Page 46 3-10 3. Intrinsic Safety Explosion Protection Instrumentation Wiring of Intrinsic Safety Explosion Protection  An intrinsic safety circuit must be isolated from non-intrinsic safety circuit. Wiring should be prepared in accordance with IEC 60079-14, NEC (National Electrical Code : NFPA-70), or the standard of the country and the area in which it is set. The wiring in cabinet should keep the distance to non-intrinsic safety circuit.
  • Page 47 3-11 3. Intrinsic Safety Explosion Protection Instrumentation Intrinsic safety circuit should consist of barriers to meet these conditions of permissible voltage, current, and electricity, and should be wired so that inductance and capacitance of its wiring doesn’t exceed its permissible value. Device that receives energy Device that gives energy (The load device)

  • Page 48: Appendix 1. Us (Fm) Ni/Canada (Fm) Ni/ Iecex Ex "Ec"/Ecas-Ex Ex "Ec

    App.1-1 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Appendix 1. US (FM) NI/Canada (FM) NI/ IECEx Ex “ec”/ECAS-EX Ex “ec” Appendix 1.1 US (FM) NI/Canada (FM) NI/ IECEx Ex “ec”/ECAS-EX Ex “ec” Control Drawing of SCU (SSC50/SSC57/ SSC60/L1SC70) and FIO Node Unit TI 32S01J30-01E Dec.
  • Page 49 App.1-2 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 2021-04-28 Page Revision Date 1−4, 8−12, 16, 17 Revised pages (US) ■ Applicable standards: FM 3600:2018 FM 3611:2018 FM 3810:2018 ANSI/UL 121201 Ed.
  • Page 50 App.1-3 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision (continued) Classifications Model Ambient Temperature (*1) SNT10D-21E Unit for Optical Bus SNT10D-22E −20 to 70 °C...
  • Page 51 App.1-4 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision (continued) Classifications Model Ambient Temperature (*1) □ STA4S- □ STA4D- □ STB4S- □ Terminal block STB4D- −20 to 70 °C...
  • Page 52 App.1-5 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision (continued) Classifications Model Ambient Temperature (*1) □ L1SC70S-SA1 −20 to 40 °C (*2) □ L1SC70S-FA1 −20 to 70 °C (*3) Safety Control Units □...
  • Page 53 App.1-6 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision YNT522D Non-Hazardous Location Cabinet YNT522D SEC401 SSC10D Hazardous (Classified) Location Class Ⅰ ,Division 2 Groups A, B, C and D...
  • Page 54 App.1-7 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision Bus1 Bus2 Non-Hazardous Location Hazardous (Classified) Location Cabinet Class Ⅰ,Division 2 Groups A, B, C and D...
  • Page 55 App.1-8 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision Nonincendive Field Wiring Parameters (Output parameters) (*1) Model Remarks (mA) (μF) (mH) -2-wire transmitter input Redundant 26.4...
  • Page 56 App.1-9 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision Nonincendive Field Wiring Parameters (Input parameters) (*1) Vmax Imax Model Remarks (mA) (μF) (μH) -4-wire transmitter input Redundant 26.4...
  • Page 57 (Technical Information of Installation Guidance), and IM (User’s Manuals) should be referred to and the instructions described in the documents should be observed. PROSAFE-RS IS SUITABLE FOR USE IN CLASS 1, DIVISION 2, GROUPS A, B, C, and D OR NONHAZARDOUS LOCATIONS ONLY.
  • Page 58 App.1-11 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision (Canada) ■ Applicable standards: CAN/CSA-C22.2 No. 0-10 (R2015) C22.2 No. 213-17 CAN/CSA-C22.2 No.61010-1-12+Amd1-18 CAN/CSA-C22.2 No.61010-2-030:18 CAN/CSA-C22.2 No.61010-2-201:18 The models which conform to these standards are listed in the following tables of the ambient temperature ranges.
  • Page 59 App.1-12 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision (continued) Classifications Model Ambient Temperature (*1) □ SDV144-SE □ SDV144-SF □ □ SDV531- □ □ SDV531- □...
  • Page 60 App.1-13 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision (continued) Classifications Model Ambient Temperature (*1) □ Safety Node Units L1NB10D-4 −20 to 70 °C Unit for Optical Bus □...
  • Page 61 App.1-14 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision YNT522D Non-Hazardous Location Cabinet YNT522D SEC401 SSC10D Hazardous (Classified) Location Class Ⅰ ,Division 2 Groups A, B, C and D...
  • Page 62 App.1-15 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision Bus1 Bus2 Non-Hazardous Location Hazardous (Classified) Location Cabinet Class Ⅰ,Division 2 Groups A, B, C and D...
  • Page 63 App.1-16 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision Nonincendive Field Wiring Parameters (Output parameters) (*1) Model Remarks (mA) (μF) (mH) -2-wire transmitter input Redundant 26.4...
  • Page 64 App.1-17 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision Nonincendive Field Wiring Parameters (Input parameters) (*1) Vmax Imax Model Remarks (mA) (μF) (μH) -4-wire transmitter input Redundant 26.4...
  • Page 65 (Technical Information of Installation Guidance), and IM (User’s Manuals) should be referred to and the instructions described in the documents should be observed. PROSAFE-RS IS SUITABLE FOR USE IN CLASS 1, DIVISION 2, GROUPS A, B, C, and D OR NON-HAZARDOUS LOCATIONS ONLY.
  • Page 66 App.1-19 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS/ProSafe-RS Lite Model Control drawing Title NFM014-A13 Page Revision WARNING – EXPLOSION HAZARD – SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
  • Page 67 App.1-20 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS Model Instructions (IECEx) Title NFM014-A102 2021-04-28 Page Revision Date 1−3 Revised pages ■ Applicable standards: IEC 60079-0 Ed. 7.0 (2017) I EC 60079-7 Ed. 5.1 (2017) The models which conform to these standards are listed in the following tables of the ambient temperature ranges.
  • Page 68 App.1-21 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS Model Instructions (IECEx) Title NFM014-A102 Page Revision (continued) Classifications Model Ambient Temperature (*1) ALR111-SE1 0 to 60 °C ALR121-SE1 0 to 60 °C ALR121-SE3 −20 to 70 °C...
  • Page 69 YOKOGAWA. Otherwise, the type of protection may be invalidated. ・ Modifications shall not be made to the equipment which are operated in hazardous areas. ・ Use only the following batteries specified by Yokogawa Electric Corporation for the CPU modules: SCP461: S9185FA, S2CP471: S9450FE ・...
  • Page 70 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Appendix 1.2 US (FM) NI/Canada (FM) NI/ IECEx Ex “ec”/ECAS-EX Ex “ec” Control Drawing of SCU (S2SC70) and N-IO Node Unit Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101...
  • Page 71 App.1-24 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision (Continued) Classifications Model Ambient Temperature (*1) □ □ S2NN30D-4 00013 −40 to 70 °C □ □...
  • Page 72 App.1-25 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision (Continued) Classifications Model Ambient Temperature (*1) −40 to 70 °C (*4) When utilizing Digital output function, the total...
  • Page 73 App.1-26 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision Safety Control Unit TI 32S01J30-01E Dec. 3, 2021-00...
  • Page 74 App.1-27 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision Safety Control Unit TI 32S01J30-01E Dec. 3, 2021-00...
  • Page 75 App.1-28 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision Non-incendive field wiring parameters (Output parameter) Model Function Remark (mA) (μF) (mH) S2MMM843 Analog Input 2-wire...
  • Page 76 Modules can be mounted also on an FM-approved Base Plate S2BN5D. In such case, installation must be in accordance also with the control drawing of these Base Plates. PROSAFE-RS IS SUITABLE FOR USE IN CLASS 1, DIVISION 2, GROUPS A, B, C, and D OR NONHAZARDOUS LOCATIONS ONLY.
  • Page 77 App.1-30 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision 12. WARNING – EXPLOSION HAZARD. SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR DIVISION 2. 13. WARNING – EXPLOSION HAZARD. DO NOT DISCONNECT EQUIPMENT WHEN A FLAMMABLE OR COMBUSTIBLE ATMOSPHERE IS PRESENT.
  • Page 78 App.1-31 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision (Canada) ■ Applicable standards: CAN/CSA-C22.2 No. 0-10 (R2015) C22.2 No. 213-17 CAN/CSA-C22.2 No.61010-1-12+Amd1-18 CAN/CSA-C22.2 No.61010-2-030:18 CAN/CSA-C22.2 No.61010-2-201:18 The models which conform to these standards are listed in the following tables of the ambient temperature ranges.
  • Page 79 App.1-32 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision (Continued) Classifications Model Ambient Temperature (*1) S2PW503-S0130 Power supply module −40 to 70 °C S2PW504-S0130 S2EN501-S00130 −40 to 70 °C...
  • Page 80 App.1-33 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision Safety Control Unit TI 32S01J30-01E Dec. 3, 2021-00...
  • Page 81 App.1-34 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision Safety Control Unit TI 32S01J30-01E Dec. 3, 2021-00...
  • Page 82 App.1-35 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision Non-incendive field wiring parameters (Output parameter) Model Function Remark (mA) (μF) (mH) S2MMM843 Analog Input 2-wire...
  • Page 83 Vmax ≥ Voc or Vt; Imax ≥ Isc or It; Ca ≥ Ci + Ccable; La ≥ Li + Lcable 10.5 For current controlled circuits, Imax of the nonincendive field wiring apparatus is not required and need not be aligned with parameter Isc or It of ProSafe-RS or other associated nonincendive field wiring apparatus.
  • Page 84 App.1-37 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Control drawing Title NIE009-A101 Page Revision 11. WARNING – EXPLOSION HAZARD – SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
  • Page 85 App.1-38 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Instructions (IECEx) Title NIE009-A102 2021-04-28 Page Revision Date 1−3 Revised pages ■ Applicable standards: IEC 60079-0 Ed. 7.0 (2017) IEC 60079-7 Ed. 5.1 (2017) The models which conform to these standards are listed in the following tables of the ambient temperature ranges.
  • Page 86 App.1-39 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO Model Instructions (IECEx) Title NIE009-A102 Page Revision (Continued) Classifications Model Ambient Temperature (*1) −40 to 70 °C When utilizing Digital output function of S2MMM843, the total load current of all □...
  • Page 87 ・ Modifications shall not be made to the equipment which are operated in hazardous areas. ・ Use only the following batteries specified by Yokogawa Electric Corporation for the CPU modules: SCP461: S9185FA, S2CP471: S9450FE ・...

  • Page 88: Fm) Ni/Canada (Fm) Ni/Iecex Ex "Ec"/Ecas-Ex Ex "Ec" Control Drawing Of Scu (S2Sc70) And N-Io Node Unit

    App.1-41 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Appendix 1.3 US (FM) NI/Canada (FM) NI/IECEx Ex “ec” Control Drawing of N-IO field enclosure Applicable Standards / Applicable Models  [US (FM) NI] <Applicable Standards> FM 3600:2018 FM 3611:2018 FM 3810:2018 ANSI/UL 121201 Ed.
  • Page 89 App.1-42 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” [IECEx] <Applicable Standards> IEC 60079-0 Ed. 7.0 (2017) IEC 60079-7 Ed. 5.1 (2017) IEC 60079-15 Ed. 5.0 (2017) <Marking> IECEx FMG 20.0022X Ex ec nC IIC T4 Gc (S2NN70D, S2NN60D) Ex ec IIC T4 Gc (S2CB60)
  • Page 90 App.1-43 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO field enclosure Model Control drawing (US) Title NFM037-A101 2020-04-10 Page Revision Date 2, 4 Revised pages Control Drawing (US) TI 32S01J30-01E Dec. 3, 2021-00...
  • Page 91 App.1-44 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO field enclosure Model Control drawing (US) Title NFM037-A101 Page Revision Specific condition of use: - S2NN60D shall be installed in S2CB60. - Since Ta is not marked on the equipment, the control drawing NFM037-A101 shall be referred to for the ambient temperature range.
  • Page 92 App.1-45 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO field enclosure Model Control drawing (Canada) Title NFM037-A101 Page Revision Control Drawing (Canada) TI 32S01J30-01E Dec. 3, 2021-00...
  • Page 93 App.1-46 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Yokogawa Electric Corporation ProSafe-RS N-IO field enclosure Model Control drawing (Canada) Title NFM037-A101 Page Revision Specific condition of use: - S2NN60D shall be installed in S2CB60. - Since Ta is not marked on the equipment, the control drawing NFM037-A101 shall be referred to for the ambient temperature range.
  • Page 94 D. Harada Approved by NFM037-A102 2020-04-10 Page Revision Date − Revised pages Instructions (IECEx) App.1-47 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Following items shall be included in instructions: – Applicable standards (together with the year of issue) listed in Chapter 1; –...
  • Page 95 Repairs of the equipment shall be carried out only by trained, experienced, skilled, knowledgeable and/or supervised personnel, or by the service engineers recognized by YOKOGAWA. Otherwise, the type of protection may be invalidated. • Modifications shall not be made to the equipment which are operated in hazardous areas.

  • Page 96: Appendix 1.4 Us (Fm) Ni/Canada (Fm) Ni Control Drawing Of S2Bn5D

    App.1-48 Appendix 1. US (FM) NI/Canada (FM) NI/IECEx Ex “ec”/ECAS-EX Ex “ec” Appendix 1.4 US (FM) NI/Canada (FM) NI Control Drawing of S2BN5D Applicable Standards / Applicable Models  [US (FM)] <Applicable Standards> AIS /I,II,III / 1 / ABCDEFG NI / I / 2 / ABCD / T4 I / 2 / AEx nA [ia Ga] / IIC / T4 Gc 20 / [AEx ia Da] / IIIC Class 3600:2011...
  • Page 97 Wiring methods must be in accordance with the National Electrical Code for installations in the United States, the Canadian Electrical Code for installations in Canada, or other local codes, as applicable. Rev. Doc. No.: IFM052-A100 P.1 Drawing: N. Nakahashi Approved: D. Harada Yokogawa Electric Corporation TI 32S01J30-01E...
  • Page 98 WARNING - Do not remove or replace fuse when energized. AVERTISSEMENT - Ne pas retirer ni re mplacer de fusible sous tension Rev. Doc. No.: IFM052-A100 P.2 Drawing: N. Nakahashi Approved: D. Harada Yokogawa Electric Corporation TI 32S01J30-01E Dec. 3, 2021-00...

  • Page 99: Appendix 2. Atex Ex "Ec"/Atex Type "N" / Ukex Ex "Ec" / Ukex Type "N

    Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Appendix 2. ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Note: Regarding the latest conformity standard, refer to the GS 32P01B60-01EN “ProSafe-RS Standards Compliant Models”. Appendix 2.1 ATEX Ex “ec” / UKEX Ex “ec”...
  • Page 100 App.2-2 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Yokogawa Electric Corporation ProSafe-RS FIO Model Instructions Title NKE044-A13 2021-05-14 Page Revision Date 1−5 Revised pages ■ Applicable standards: EN IEC 60079-0:2018 EN IEC 60079-7:2015 + A1:2018...
  • Page 101 App.2-3 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Yokogawa Electric Corporation ProSafe-RS FIO Model Instructions Title NKE044-A13 Page Revision (Continued) Classifications Model Ambient Temperature (*1) SCP451-E3 −20 to 70 °C Processor module SCP461-E1 −20 to 70 °C...
  • Page 102 App.2-4 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Yokogawa Electric Corporation ProSafe-RS FIO Model Instructions Title NKE044-A13 Page Revision (Continued) Classifications Model Ambient Temperature (*1) □ −20 to 70 °C STA4S- □...
  • Page 103 App.2-5 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Yokogawa Electric Corporation ProSafe-RS FIO Model Instructions Title NKE044-A13 Page Revision (Continued) Classifications Model Ambient Temperature (*1) L1SC70S-SA14110 −20 to 40 °C (*2) L1SC70S-FA14110 −20 to 70 °C (*3)
  • Page 104 EN 60079-19. Repairs of the equipment shall be carried out only by trained, experienced, skilled, knowledgeable and/or supervised personnel, or by the service engineers authorized by YOKOGAWA. Otherwise, the type of protection may be invalidated. Modifications shall not be made to the equipment which is operated in hazardous areas.

  • Page 105: Atex Ex "Ec" / Ukex Ex "Ec" Instruction Of Scu (S2Sc70) And N-Io Node Unit

    Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Appendix 2.2 ATEX Ex “ec” / UKEX Ex “ec” Instruction of SCU (S2SC70) and N-IO Node Unit Yokogawa Electric Corporation ProSafe-RS N-IO Instructions NKE052-A31 2021-12-17...
  • Page 106 App.2-8 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Yokogawa Electric Corporation ProSafe-RS N-IO Instructions NKE052-A31 Note: Suffix codes relevant to each equipment are specified in the spaces of Option codes are omitted from the models shown below...
  • Page 107 App.2-9 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Yokogawa Electric Corporation ProSafe-RS N-IO Instructions NKE052-A31 (Continued) Classifications Model Ambient Temperature (*1) Power supply Module S2PW504-S0130 -40 to 70 °C S2EN402-S0011 -20 to 70 °C S2EN404-S0011 -20 to 70 °C...
  • Page 108 EN 60079-19. Repairs of the equipment shall be carried out only by trained, experienced, skilled, knowledgeable and/or supervised personnel, or by the service engineers authorized by YOKOGAWA. Otherwise, the type of protection may be invalidated. Modifications shall not be made to the equipment which is operated in hazardous areas.

  • Page 109: Atex Ex "Ec" / Ukex Ex "Ec" Instruction Of N-Io Field Enclosure

    Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Appendix 2.3 ATEX Ex “ec” / UKEX Ex “ec” Instruction of N-IO field enclosure Yokogawa Electric Corporation Prosafe-RS N-IO field enclosure Model Instructions Title NKE0056-A011...
  • Page 110 Repairs of the equipment shall be carried out only by trained, experienced, skilled, knowledgeable and/or supervised personnel, or by the service engineers authorized by YOKOGAWA. Otherwise, the type of protection may be invalidated. Modifications shall not be made to the equipment which is operated in hazardous areas.

  • Page 111: Appendix 2.4 Atex Type "N" / Ukex Type "N" Information Of S2Bn4D

    App.2-13 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Appendix 2.4 ATEX Type “n” / UKEX Type “n” Information of S2BN4D Applicable Standards  EN IEC 60079-0:2018 EN 60079-15:2010 Markings  Baseefa15ATEX0240X II 3 G Ex nA IIC T4 Gc Applicable Models ...

  • Page 112: Appendix 2.5 Atex Ex "Ec"/ Ukex Ex "Ec" Information Of S2Bn5D

    App.2-14 Appendix 2 ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n” Appendix 2.5 ATEX Ex “ec”/ UKEX Ex “ec” Information of S2BN5D Applicable Standards  EN IEC 60079-0:2018 EN IEC 60079-7:2015 + A1:2018 EN 60079-11:2012 Markings ...

  • Page 113: Appendix 3. Iecex Ex "Ec"/ Iecex Type "N" Of S2Bn4D / S2Bn5D

    App.3-1 Appendix 3. IECEx Ex “ec”/ IECEx Type “n” of S2BN4D / S2BN5D Appendix 3. IECEx Ex “ec”/ IECEx Type “n” of S2BN4D / S2BN5D Appendix 3.1 IECEx Type “n” Information of S2BN4D Applicable Standards  IEC 60079-0:2011 IEC 60079-15:2010 Markings ...
  • Page 114 App.3-2 Appendix 3. IECEx Ex “ec”/ IECEx Type “n” of S2BN4D / S2BN5D • The I/O modules fitted to the backplane do not form part of the certification and must be separately appropriately certified. • Provision shall be made (whether part of the certified I/O modules fitted to the backplane or externally fitted) to provide transient protection on the supply terminals to be set at a level not exceeding 140% of the peak rated voltage value of 85V.

  • Page 115: Iecex Ex "Ec"/ Intrinsic Safety/Ecas-Ex Ex "Ec" Information Of S2Bn5D

    App.3-3 Appendix 3. IECEx Ex “ec”/ IECEx Type “n” of S2BN4D / S2BN5D Appendix 3.2 IECEx Ex “ec”/ Intrinsic Safety/ ECAS-Ex Ex “ec” Information of S2BN5D Applicable Standards  IEC 60079-0 Ed. 7.0 (2017) IEC 60079-7 Ed. 5.1 (2017) IEC 60079-11 Ed.6.0 (2011) Markings ...
  • Page 116 App.3-4 Appendix 3. IECEx Ex “ec”/ IECEx Type “n” of S2BN4D / S2BN5D Specific conditions of use  All the devices must be installed in the hazardous area in accordance with the marking shown on each device. When the equipment consists of several devices, ensure that the equipment consists only of the devices which can be used in the same hazardous environment.

  • Page 117: Revision Information

    June 2007/2nd Edition Addition of new compliant products to FM NI and Type “n”. June 2008/3rd Edition Complied standard number in the table “Explosion Protection Standards that ProSafe-RS Complies” was revised. Sample in the title “Example” was changed into SAI143 from AAI141.
  • Page 118 Appendix 2. ATEX was added in front of Type “n”. Nov. 2015/14th Edition Type “i” of “Table Explosion Protection Standards that ProSafe-RS Complies” was added. “Overview of Connecting N-IO Components” was added. S2BN5D of ATEX Type “n” was added. IECEx Type “n” was added.
  • Page 119 Option code /NTRY for Terminal Board is added. Clerical error correction. Appendix 4 “US (FM) NI/Canada (FM) NI Control Drawing for ProSafe-RS N-IO” is revised. June 2017/18th Edition Canada (FM) standard number was revised. Canada (FM) standard number was revised.
  • Page 120 “US (FM) NI/Canada (FM) NI Control Drawing for ProSafe-RS FIO” was revised. July 2020/25th Edition Compliance with ECAS-Ex Type “n” ECAS-Ex Type “n” was added to table of Explosion Protection Standards that ProSafe-RS Complies. ECAS-Ex Type “n” was added. Appendix 1.1 Note for SPW482 of table US (FM) NI Approved Products was revised.
  • Page 121 N-IO field enclosure was added. Appendix 2.2 N-IO field enclosure was added. Appendix 4 “US (FM) NI/Canada (FM) NI Control Drawing for ProSafe-RS N-IO” is revised. May 2021/27th Edition US (FM) standard number was revised. Canada (FM) standard number was revised.
  • Page 122 Written by Yokogawa Electric Corporation Published by Yokogawa Electric Corporation 2-9-32 Nakacho, Musashino-shi, Tokyo 180-8750, JAPAN Subject to change without notice.

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