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Univex IT Series manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    MODEL 5100-02-IT IT Series COMBUSTIBLE GAS SENSOR MODULE Version 2.00a APPLICABILITY & EFFECTIVITY Effective for all Model 5100-02-IT Modules manufactured after February 15, 2008. Instruction Manual Part Number T12019 Rev. B1[...]

  • Page 2

    Model 5100-02-IT Combustible Gas Sensor Module FM APPROVAL ONLY THE FOLLOWING ITEMS, FUNCTIONS AND OPTIONS ARE FM * APPROVED Model 5100-02-IT Combustible Gas Sensor Module Sensor Module Model 5100-02-IT Combustible Gas Sensor Module Model 5100-02-IT-SS Combustible Gas Sensor Module, 316SS Calibration Equipment Model 1200-26 Calibration Gas Delivery[...]

  • Page 3

    Model 5100-02-IT Combustible Gas Sensor Module Contents TABLE OF CONTENTS 1. PRODUCT DES CRIPTION ............................................................................................................ ................. 3 1.1 GENERAL ...............................................................................................................[...]

  • Page 4

    Model 5100-02-IT Combustible Gas Sensor Module Contents 6.2 ENCLOSURE REPLACEM ENT .................................................................................................................... 23 6.3 TRANSMITTER REPLACEM ENT ................................................................................................................. 24 6[...]

  • Page 5

    Model 5100-02-IT Combustible Gas Sensor Module Page: 3 1. PRODUCT DESCRIPTION 1.1 GENERAL The Model 5100-02-IT Catalytic Bead Combustible Gas Sensor Module is a member of the Sentry Information Technology ”IT” family of gas sensor transmitter modules. IT modules offer a broad array of features including: • Integral Alphanumeric display • 18[...]

  • Page 6

    Model 5100-02-IT Combustible Gas Sensor Module Page: 4 Figure 1-2 Model 5100-02-IT Combustible Gas Sens or Module Aluminum – Dimensions Figure 1-1 Model 5100-02-IT Combustible Gas Sensor Module Stainless Steel – Dimensions[...]

  • Page 7

    Model 5100-02-IT Combustible Gas Sensor Module Page: 5 1.4.2 MODBUS OPERA TION All IT gas sensor modules have a Modbus RTU RS-485 serial interface to allow direct connection to any standard PLC or DCS. The Module Address Switch (section 3.5) allows the user to select Modbus addresses 1 thru 15. Switch position “0” allows t he user to set addres[...]

  • Page 8

    Model 5100-02-IT Combustible Gas Sensor Module Page: 6 1.6 INTERCONNECT WIRING Not supplied with the sensor module, but necessary to the installation and operation is the multi conductor wiring which connects the module to its power source and controller. Before this wiring is installed it is important to read and understand the cont rol system ins[...]

  • Page 9

    Model 5100-02-IT Combustible Gas Sensor Module Page: 7 2. CAUTIONS & WARNINGS 2.1 INTRODUCTION Although IT Transmitter Modules are designed and construct ed for installation and operation in industrial applications including "hostile" environment s, caution should be taken to insure that the installation is made in compliance with thi[...]

  • Page 10

    Model 5100-02-IT Combustible Gas Sensor Module Page: 8 2.3.1 CA TALYTIC BEA D SENSOR MODULES Model 5100-02-IT Gas Sensor Modules are FM perfo rmance approved for detection of Combustible gas (methane and hydrogen). The sensor is cross sensitive to the combustible gases indicated in Table 2-1. Risk management planning should take into consideration [...]

  • Page 11

    Model 5100-02-IT Combustible Gas Sensor Module Page: 9 3. INSTALLATION NOTE All IT modules are factory pre-configured and calibrated. All modules are tagged to indicate the configuration including the sensor module number. Identify all components during unpacking and in stall using the factory configuration. 3.1 SENSOR MODULE LOCATIONS Select locat[...]

  • Page 12

    Model 5100-02-IT Combustible Gas Sensor Module Page: 10 3.3 ENCLOSURE INSTALLATION To protect the transmitter and sensor assembly they should be removed from the enclosure and preserved until final installation and wiring termination. Prior to installation and wiring. 1. Remove the transmitter from the module housing by: • Unscrew the two captive[...]

  • Page 13

    Model 5100-02-IT Combustible Gas Sensor Module Page: 11 6. Carefully return the transmitter to the enclosure installing it over the two standoffs. Tighten the retaining screws into the standoffs. P1 F UNCTION P2 F UNCTION 1 High Alarm Relay NC 1 Power 2 High Alarm Relay NO 2 Signal 3 High Alarm Relay COM 3 Ground 4 Low Alarm Relay NC 4 N/A 5 Low Al[...]

  • Page 14

    Model 5100-02-IT Combustible Gas Sensor Module Page: 12 Figure 3-2 Connector Locations 3.5 INSTALLATION CONFIGURATION Table 3-3 and Figures 3-1 through 3-4 provide location and installation details. N OTE For Sentry applications only sensor addresses 1-8 are allowed. If using Modbus output sensor addresses 1-15 are available. Position 0 allows the [...]

  • Page 15

    Model 5100-02-IT Combustible Gas Sensor Module Page: 13 Figure 3-3 4-20 mA Connection[...]

  • Page 16

    Model 5100-02-IT Combustible Gas Sensor Module Page: 14 Figure 3-5 Remote Alarm Reset Figure 3-4 Digital Interface Connections[...]

  • Page 17

    Model 5100-02-IT Combustible Gas Sensor Module Page: 15 Figure 4-6 HMI Sw itch Locations 4. INTRODUCTION – HUMAN-MACHINE INTERFACE SYSTEM The Combustible Gas Sensor utilizes a visual menu sy stem operated by means of a magnet. A magnet stick is supplied for this purpose. The menu system is used to configure alarm set-points, calibrate the sensor [...]

  • Page 18

    Model 5100-02-IT Combustible Gas Sensor Module Page: 16 4.2 MAIN MENU Table 4-1 describes the primary human-machine interface operation. Function D isplay Description Reference M E ST M E ST ME S T ME S T M E ST M E ST M E ST M E ST M E ST M E ST M E ST Key Mode Switch [M] Enter Switch [E] Up Switch [ ▲ ] Previous Menu Down Swit ch [ ▼ ] Next M[...]

  • Page 19

    Model 5100-02-IT Combustible Gas Sensor Module Page: 17 4.3 CONFIGURE SET-POINTS The sensor module set-points menu is used to initially set-up the alarm set points, relay actions, gas type and range, 4-20 mA action and RS-485/ Sentry address and baud rates (See Menu Key in Appendix J). • Alarm Set-points: Once the Set-up menu is selected, pre ss [...]

  • Page 20

    Model 5100-02-IT Combustible Gas Sensor Module Page: 18 Functio n Display Description Reference M E ST M E ST M E ST M E ST ME S T ME S T ME S T ME S T M E ST M E ST Use S or T keys to adjust to new set point ME S T M E ST M E ST ME S T M E ST ME S T ME S T Table 4-3A Set-Up Configura tion Down *Sentry High Alarm Relay set to Sentry Down Sentry NOT[...]

  • Page 21

    Model 5100-02-IT Combustible Gas Sensor Module Page: 19 M E ST M E ST M E ST M E ST M E ST M E ST M E ST M E ST ME S T M E ST M E ST M E ST M E ST M E ST M E ST M E ST M E ST M E ST M E ST M E ST M E ST ME S T M E ST Down Baud S.P. Function - RS-485 Baud Rate Adj ust Enter *Track * = Curr ent selection Table 4-3B Set-Up Configur ation Enter *38400 [...]

  • Page 22

    Model 5100-02-IT Combustible Gas Sensor Module Page: 20 4.4 MAINTENANCE FUNCTIONS The maintenance menu allows the operator to monitor ce rtain Sensor values, and select the required analog or digital communication interface. The maintenanc e menu operation is described in Table 4-4. Function Displa y Description Reference M E ST M E ST M E ST M E S[...]

  • Page 23

    Model 5100-02-IT Combustible Gas Sensor Module Page: 21 5. CALIBRATION 5.1 CA LIBRATION FREQUENCY The manufacturer specifies that sens or modules must be calibrated every 180 days. Periodic functional tests are advisable for critical applicat ions and hostile environments. The sensor module microprocessor software includes high le vel self checking[...]

  • Page 24

    Model 5100-02-IT Combustible Gas Sensor Module Page: 22 Functio n Display Description Reference M E ST M E ST M E ST M E ST M E ST M E ST M E ST ME S T ME S T M E ST ME S T M E ST Banner: Operate m ode Table 5- 1 Calibration Sub-Routine B - Select Spa n Sub-Routine C - Ca libration F a il 0%LEL Default Display Enter CAL-FAIL Operation: No c ali bra[...]

  • Page 25

    Model 5100-02-IT Combustible Gas Sensor Module Page: 23 6. SERVICE 6.1 SENSOR MODULE CONFIGURA TION The gas sensor module is comprised of the following sub-assemblies (Figure 6-1): 5100-02-IT Gas Sensor Module SPL21810 Alluminum Enclosure (SPL32178 316SS Enclosure) SPL21813 Transmitter Assembly 5200-02 Sensor Assembly There are no field serviceable[...]

  • Page 26

    Model 5100-02-IT Combustible Gas Sensor Module Page: 24 6.3 TRA NSMITTER REPLA CEMENT The transmitter assembly should be replaced when it is determined that it is unre liable, noisy or cannot be calibrated. This may occur due to age, corrosion or failed components. To replace the transmitter assembly: a. Remove the cover of the main enclosure b. Un[...]

  • Page 27

    Model 5100-02-IT Combustible Gas Sensor Module Page: 25 • Wiring terminations clean and correct. 6.5.4 MOISTURE TRA PS AND RA INSHIELDS • Conduit seals and drains installed to avoid moisture build up in electronics enclosure. Water accumulation in sensor module enclosures is a major cause of damage and system failures - take precautions to seal[...]

  • Page 28

    Model 5100-02-IT Combustible Gas Sensor Module Page: 26 7. APPENDICES 7.1 APPENDIX A: SPECIFICATIONS Specifications: Sensor: Type: Catalytic Bead Range: 0-100% LEL Combustible Repeatability: +/-1% LEL Response time: < 12 sec to 60% full scale Accuracy : +/- 1% for 0-50% LEL range +/- 2% for 51-100% LEL range Sensor Life: Typically >3 years Ou[...]

  • Page 29

    Model 5100-02-IT Combustible Gas Sensor Module Page: 27 7.2 APPENDIX B: MODEL NUMBERS & PARTS LIST Sensor Module 5100-02-IT-AL Sensor Module, Co mbustible, Aluminum housing 5100-02-IT-SS Sensor Module, Combustible, 316SS housing Options 5311-00 Rainshield 5394-51 Remote Sensor/Display Option 5394-61 Auxiliary Connection Assembly 5394-62 Auxilia[...]

  • Page 30

    Model 5100-02-IT Combustible Gas Sensor Module Page: 28 7.3 APPENDIX C: LIMITED WARRANTY SIERRA MONITOR CORPORATION warrant s its products to be free from defec ts in workmanship or material under normal use and service for two years after date of sh ipment. SMC will repair or replace without charge any equipment found to be defective during the wa[...]

  • Page 31

    Model 5100-02-IT Combustible Gas Sensor Module Page: 29 7.4 APPENDIX D: REMOTE SENSOR DRAWING 5394-50[...]

  • Page 32

    Model 5100-02-IT Combustible Gas Sensor Module Page: 30 7.5 APPENDIX E: AUXILIARY RELAY ASSEMBLY 5394-62[...]

  • Page 33

    Model 5100-02-IT Combustible Gas Sensor Module Page: 31 7.6 APPENDIX F: AUXILIARY CONNECTION ASSEMBLY 5394-61[...]

  • Page 34

    Model 5100-02-IT Combustible Gas Sensor Module Page: 32 7.7 APPENDIX G: AUXILIARY RS-485 MULTIDROP ASSEMBLY 5394-64[...]

  • Page 35

    Model 5100-02-IT Combustible Gas Sensor Module Page: 33[...]

  • Page 36

    Model 5100-02-IT Combustible Gas Sensor Module Page: 34 7.8 APPENDIX H: MODBUS MEMORY MAP Read Register Table Register Description Comments 40001 Concentration Gas Concentration multiplied by 100 40002 Temperature Temperature in degrees Celsius scalled by a factor of 100 40003 High Alarm Relay Boolean indicating the High Alarm Status, 0 No Alarm, 1[...]

  • Page 37

    Model 5100-02-IT Combustible Gas Sensor Module Page: 35 7.9 APPENDIX I: COMBUSTIBLE GAS SCALING FACTORS For combustible gas monitoring, a calibration standar d of Methane may be used in conjunction with scaling factors to cause Sentry concentration display and alar m function in %LEL scale of another gas as follows: GAS METHANE FACTOR Acetaldehyde [...]

  • Page 38

    Model 5100-02-IT Combustible Gas Sensor Module Page: 36 7.10 APPENDIX J: Menu Key for 5100-02-IT Gas Sensor Module • Key M : MODE • Key E : ENTER • Key ▲ UP (+) • Key ▼ DOWN (-) MAIN MENU Use the M key to access each of the 4 main sections of the menu. M M M M M | | | | | |- A LMRSET : |- CA LIB : |- SETUP : |- MA INT : |- EXIT? ALARM R[...]

  • Page 39

    Model 5100-02-IT Combustible Gas Sensor Module Page: 37 SETUP MENU Once in the SETUP menu u se the ▲ or ▼ keys to access each of the 5 ma in sections of the SETUP menu. ▼ ▼ ▼ ▼ ▼ | | | | | |- A larms : |- Relays : |- GasFactr : |- 4-20mA : | - RS-485 SETUP: | E – Alarms (Alarms Set-Point Adjustment) | | | E – H.Alarm (High Alarm S[...]

  • Page 40

    Model 5100-02-IT Combustible Gas Sensor Module Page: 38 | |---- ▼ 4-20mA (Verifies 4mA or 20mA output and se lects condition of output during calibration) | | | ▼ -------or--------------- E Calib | | | | | |- Out: 4mA | | | | | ▼ --or— E (To calibrate analog output 4mA, | ▲ or ▼ to adjust level, | | | then E t o accept) | | |- Out : 20 [...]

  • Page 41

    Model 5100-02-IT Combustible Gas Sensor Module Page: 39 THIS PAGE INTENTIONALLY LEFT BLANK[...]