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Moore SST User Manual

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Demand Moore Reliability
SSX/SST
User's Manual
Safety Series Isolator and Splitter
206-792-00G
May 2016
www.miinet.com

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  • Page 1 Demand Moore Reliability SSX/SST User’s Manual Safety Series Isolator and Splitter 206-792-00G May 2016 www.miinet.com...

  • Page 2: Customer Support

    We perform a sequence of stringent quality assurance checks on every unit we ship. If any Moore Industries product fails to perform up to rated specifications, call us for help. Our highly skilled staff of trained technicians and engineers pride themselves on their ability to provide timely, accurate, and practical answers to your process instrumentation questions.
  • Page 3 All Moore Industries instrumentation should only be used for the purpose and in the manner described in this manual. If you use this product in a manner other than that for which it was intended, unpredictable behavior could ensue with possible hazardous consequences.

  • Page 4: Table Of Contents

    Calibration .......................13 Calibration Procedure - SSX and SST Single Output Channel ..........14 SPAN and ZERO Adjustments - SSX and SST Single Output Channel ........14 Calibration Procedure - SST Splitter (Two Output channels) ............ 16 SPAN and ZERO Adjustments - SST Splitter ................16 Bench Check ......................18...
  • Page 5 Solve “Bucking” Power Supplies and Filter HART ..........35 Solving 4-Wire Transmitter Problems ..............36 Duplicate Signal to Two Legacy Systems ............37 Section 6 - SSX/SST in SIS Functional Safety Description ................38 Failure Rate Data ....................38 Product life ......................38 Configuration ......................38...

  • Page 6: Section 1 - Introduction

    This manual contains information needed to install, operate and maintain this product. When the SSX or SST are used in a SIL rated safety application, please refer to Section 6 SSX/SST in Safety Instrumented Systems. Safety and failure rate data for the SSX and SST are in the SSX/SST FMEDA report (Moore Industries’...
  • Page 7 Designed to meet NEMA 4X and IP66 ratings, the R-BOX is the perfect solution for protecting the SST/SSX in field and control room applications. Rugged and versatile, it delivers a high impact structure and resistance to ultraviolet rays and chemicals. The R-BOX mounts on a pipe, panel or surface, and comes in a variety of widths to economically accommodate several SSTs or SSXs.

  • Page 8: Model Numbers And Options

    Safety Series Isolator and Splitter May 2016 Model Numbers and Options The following section provides details of the Moore Industries model number and the available options for the SSX and SST. Moore Industries model numbers or SSX/SST are structured as follows:...

  • Page 9: Ssx 2-Wire Loop Powered Safety Isolator / Signal Convertor

    1-5V Input is chosen. POWER 12-42DC The SSX is a 2-wire, loop powered instrument. It is powered either by an external 12- 42Vdc power supply, or by a DCS (or PLC) input channel that provides power (12-42Vdc) to the loop.

  • Page 10: Sst 4-Wire Line/Mains Powered Safety Isolator/Signal Convertor (Single Output Channel)

    With this option the instrument is configured for no HART pass-through. (4-20mA input units only) HOUSING [DIN] Universal DIN-style housing mounts on a 32mm G-type rail (EN 50035) or on 35mm Top Hat rail (EN50022). [FLB] Flange mount bracket for wall mounting www.miinet.com - 10 - Moore Industries-International, Inc.

  • Page 11: Sst 4-Wire Line/Mains Powered Safety Isolator Splitter (Two Output Channels)

    It can be powered by either 24Vdc (+/- 10%), 117Vac, 50/60Hz (+/- 10%) or 230Vac, 50/60Hz (+/- 10%). The SST with two output channels consumes 5 watts maximum. Moore Industries-International, Inc. www.miinet.com - 11 -...
  • Page 12 20mA on both outputs. HOUSING [DIN] Universal DIN-style housing mounts on a 32mm G-type rail (EN 50035) or on 35mm Top Hat rail (EN50022). [FLB] Flange mount bracket for wall mounting. www.miinet.com - 12 - Moore Industries-International, Inc.

  • Page 13: Section 2 - Calibration And Bench Check

    Calibration We recommend that you check the calibration every year and re-calibrate only when necessary. To calibrate the SSX or the SST, set up the equipment listed in Table 1 as shown in Figures 2.2 thru 2.4, as appropriate. Table 1. Calibration Equipment for the SSX and SST...

  • Page 14: Calibration Procedure - Ssx And Sst Single Output Channel

    1V, ±0.02V. Adjust the INPUT to 20mA. Adjust the SPAN pot on the SSX or SST front panel until the meter in the calibration setup reads 5V, ±0.02V. Note: SPAN and ZERO adjustments are non‑interactive as long as zero is set first.
  • Page 15 SSX/SST User’s Manual 206-792-00G Safety Series Isolator and Splitter May 2016 Figure 2.2. Setting up to Calibrate the SSX CURRENT/ VOLTAGE – CALIBRATOR VOLTMETER 250ohm – 4-20mA = 1-5V – 24Vdc Figure 2.3. Setting up to Calibrate the SST (Single Output Channel)

  • Page 16: Calibration Procedure - Sst Splitter (Two Output Channels)

    SPAN and ZERO Adjustments - SST Splitter Figure 2.4. SPAN and ZERO adjustments - SST Splitter SPAN SPAN meter Potentiometer Potentiometer Adjustment Adjustments ZERO meter Potentiometer Adjustment ZERO Potentiometer Adjustments www.miinet.com - 16 - Moore Industries-International, Inc. Moore industries-International, Inc.
  • Page 17 + – VOLTMETER VOLTMETER 117 or 230Vac 4-20mA = 1-5V 4-20mA = 1-5V -EP Option Wiring CURRENT/ VOLTAGE CALIBRATOR – – – 24Vdc Power SUPPLY 12-42V VOLT – METER VOLT METER 24Vdc Power Moore Industries-International, Inc. www.miinet.com - 17 -...

  • Page 18: Bench Check

    May 2016 Bench Check If you are using HART devices in conjunction with your SSX or SST we highly recommend that you perform a bench check of the devices prior to installing them in the field. Doing this will ensure that they are operating within your expectations or requirements.

  • Page 19: Bench Check Procedure

    Using your HART Communicator verify that you can read HART data on the Output side of the SSX. Note: If your SSX has the -0HART option verify that there is no HART data on the Output side of the SSX.
  • Page 20 250 ohms resistor should be added 4-20mA + HART in the loop. OPTIONAL – 24Vdc Power – HART DCS, COMMUNICATOR PLC, etc. * 117 or 230Vac www.miinet.com - 20 - Moore Industries-International, Inc. Moore industries-International, Inc.
  • Page 21 Master does not have an integral 4-20mA + HART termination resistor, then a 250 ohms resistor should be added in the loop. OPTIONAL – 24Vdc Power – HART DCS, COMMUNICATOR PLC, etc. * 117 or 230Vac Moore Industries-International, Inc. www.miinet.com - 21 -...
  • Page 22 250 ohms resistor should be added in the loop. OPTIONAL – 24Vdc Power – HART DCS, COMMUNICATOR PLC, etc. * 117 or 230Vac OPTIONAL – HART DCS, PLC, etc. * COMMUNICATOR www.miinet.com - 22 - Moore Industries-International, Inc. Moore industries-International, Inc.
  • Page 23 250ohms resistor should be added 4-20mA + HART in the loop. – OPTIONAL 24Vdc Power – DCS, HART PLC, etc. * COMMUNICATOR 117 or 230Vac OPTIONAL – DCS, HART PLC, etc. * COMMUNICATOR Moore Industries-International, Inc. www.miinet.com - 23 -...

  • Page 24: Section 3 - Installation And Wiring

    Page 3 of this manual to view and familiarize yourself with these safety message symbols. The SSX and SST housings accommodate both 32mm, DIN-style G-rail (EN50035) and 35mm Top Hat rail(EN50022). Figure 3.2, Figure 3.3, and Figure 3.4 show the dimensions of the housing for each type of isolator.

  • Page 25: Dimensions

    SSX/SST User’s Manual 206-792-00G Safety Series Isolator and Splitter May 2016 Dimensions Figure 3.2. Dimensions of Aluminum DIN-Housed SSX Isolator 136mm REF. (5.3 in) 131mm REF. (5.1 in) 119mm 25mm (4.7 in) (.99in) 53mm REF. (2.1 in) 100mm (3.94 in) 47mm REF.
  • Page 26 100mm (3.94 in) 47mm REF. (1.8 in) 124mm (4.8 in) Figure 3.5. The SST Splitter and the SST and SSX Isolators mounted with the FLB flange bracket and the bracket’s dimensions. 23mm 18mm (0.7 in) (0.9 in) (0.4 in) 2 mm (0.1 in)

  • Page 27: Electrical Connections

    All terminals are rated CAT I. Equipment Ratings The SSX and SST do not generate hazardous voltages, they provide a low current (4-20mA) or voltage (1-5V) input and a 4-20mA output. Products connected to the SSX or SST should be designed to receive this type of input.
  • Page 28 The maximum length of un-shielded input and output signal wiring should be 2 inches. Note: Some of Moore Industries’ instruments can be classified as receivers (IPT 2 , IPX 2 , etc.) and some can be classified as transmitters (TRX, TRY, etc.) while some are both a receiver and a transmitter (SPA 2 , HIM, etc).

  • Page 29: Installation In Hazardous Locations

    Classe I, Division 2. Special Conditions of Use The following instructions must be adhered to when the SSX/SST is used in hazardous locations and potentially explosive atmospheres. The SSX/SST shall be installed in compliance with the enclosure, mounting, spacing and segregation requirements of the ultimate application.

  • Page 30: Section 4 - Operation And Maintenance

    Safety Series Isolator and Splitter May 2016 Section 4 - Operation and Maintenance When the SSX or SST are used in a SIL rated safety application, please refer to the Safety Instrumented Systems section of this manual before operating your unit. Operation Once calibrated, installed, and supplied with the correct power, the SSX/SST begins to operate immediately.

  • Page 31: Section 5 - Applications

    When HART data is required for diagnostics, maintenance or calibration the SSX is able to isolate and pass HART data from the transmitter to the host system (See Figure 5.1). Figure 5.1. The SSX passes HART data to asset management systems or other host control and monitoring systems. HART Valve Positioner...

  • Page 32: Isolate And Power A 2-Wire Transmitter

    Note: For the HART signal to operate, there needs to be a loop resistance of 250 to 1100 ohms. If a HART Master does not have an integral termination resistor, then a 250 ohms resistor should be added in the loop. www.miinet.com - 32 - Moore Industries-International, Inc.

  • Page 33: Isolation Of Safety Systems

    Dangerous failures for the SSX in this application are <5FITS (See FMEDA report for specific failure rates of all models and configurations). Figure 5.3. The SSX provides area isolation for your safety system and still allows maintenance on the output side of the loop.

  • Page 34: Sharing" Or "Splitting" Process Signals

    Note: For the HART signal to operate, there needs to be a loop resistance of 250 to 1100 ohms. If a HART Master does not have an integral termination resistor, then a 250 ohms resistor should be added in the loop. www.miinet.com - 34 - Moore Industries-International, Inc.

  • Page 35: Solve "Bucking" Power Supplies And Filter Hart

    SSX with option code -0HART and the SSX will filter the HART signal (See Figure 5.5). Figure 5.5. The SSX solves bucking power supplies. Also, when used with the -0HART option, the SSX acts as a current isolator that stops a HART signal from reaching a PLC, DCS or other receiving device.

  • Page 36: Solving 4-Wire Transmitter Problems

    Note: For the HART signal to operate, there needs to be a loop resistance of 250 to 1100 ohms. If a HART Master does not have an integral termination resistor, then a 250ohms resistor should be added in the loop. www.miinet.com - 36 - Moore Industries-International, Inc.

  • Page 37: Duplicate Signal To Two Legacy Systems

    Figure 5.7. Connecting the SST Splitter with -EP and -0HART options 2-Wire HART Transmitter – PS 602.78 ADDR + PS – 24Vdc Power – SIS LOGIC SOLVER 110 or 220Vac – DCS or Asset Management HART System COMMUNICATOR Moore Industries-International, Inc. www.miinet.com - 37 -...

  • Page 38: Section 6 - Ssx/Sst In Sis

    IEC61508:2010 for systemic integrity up to SIL 3 ® and random integrity up to SIL2 in a low demand application. This means that the SST and SSX are approved for single use in Safety Instrumented Systems (SIS) up to SIL2 for Hardware Fault Tolerance (HFT) of zero (0).

  • Page 39: Process Safety Time

    SSX/SST’s input is compatible. Broken Wire Detection When the input to an SSX (2 Wire) is broken, the output is driven to <3mA. When the input to an SST (4 Wire) is broken, the output will be driven to <1mA.
  • Page 40 Verify that the measured resistance is greater than 1 M . This tests for shorts between the power Connect SSX input in series to DCS/PLC to Transmitter loop. Be sure to observe polarity. or ground to the case Connect SSX output in series with 250 resistor and 24Vdc power supply.

  • Page 41: Section 7 - Specifications

    Exceeds 90db for current Stability: ±0.2% of reading per input units Load Capability: year Isolation: Continuous: SSX: SSX: 500Vrms between Input, Vs – 12Vdc 20mA Output and Case; SST: 500Vrms Between Input, Output, Case and SST: 1000 ohms Power SST-Splitter: 600 ohms per...

  • Page 42: Section 8- Ordering Information

    When ordering, specify: Unit / Input / Output / Power / -Option [Housing] Model number examples: SST / 4-20MA / 2X4-20MA / 24DC / -EP [DIN] SSX / 4-20MA / 4-20MA / 12-42DC / -IZ250 [DIN] *HART Pass Through not available for 1-5V Input models...

  • Page 43: Warranty Disclaimer

    Return Policy For a period of thirty-six (36) months from the date of shipment, and under normal conditions of use and service, Moore Industries (“The Company”) will at its option replace, repair or refund the purchase price for any of its manufactured products found, upon return to the Company (transportation charges prepaid and otherwise in accordance with the return procedures established by The Company), to be defective in material or workmanship.

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