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Sierra Monitor Corporation 2-Wire Series manual

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Table of contents for the manual

  • Page 1

    MODEL 4501-XX 2-Wire Series TOXIC GAS SENSOR MODULE APPLICABILITY & EFFECTIVITY Effective for all Model 4501-XX Modules ma nufactured after September 1, 2006. 4501-04 FM Pending 4501-05 FM Approved 4501-06 FM Pending Instruction Manual Part Number T13022 Rev. A[...]

  • Page 2

    Model 4501-XX Toxic Gas Sensor Module FM PERFORMANCE APPROVAL ONLY THE FOLLOWING ITEMS, FUNCTIONS AND OPTIONS ARE FM * APPROVED Model 4501-05 Hydrogen Sulfide Gas Sensor Module Sensor Module Model 4501-05 Sensor Module - Hydrogen Sulfide Calibration Equipment Model 1250-01 Gas Sensor Calibration Kit, Type A Model 1260-05 Hydrogen Sulfide in N2, 25 [...]

  • Page 3

    Model 4501-XX Toxic Gas Sensor Module TABLE OF CONTENTS 1. PRODUCT D ESCRIPTION ......................................................................................................... .................... 1 1.1 GENE RAL .................................................................................................................... ...........[...]

  • Page 4

    Model 4501-XX Toxic Gas Sensor Module Contents 7.4.2 CABLING INSTALLA TION ..................................................................................................... ................16 7.4.3 SENSOR MODUL E INSTALLATION ............................................................................................... ......16 7.4.4 MOISTURE [...]

  • Page 5

    Model 4501-XX Toxic Gas Sensor Module 1. PRODUCT DESCRIPTION 1.1 GENERA L The Model 4501-XX Toxic Gas Sensor Module is a 2-wire transmitter with 4-20 mA output and it offers a broad array of features including: • 2-wire loop powered • 180 day calibration interval • Selectable ranges • Non-intrusive one-person calibration • Integral LCD 2-[...]

  • Page 6

    Model 4501-XX Toxic Gas Sensor Module Page: 2 1.4 MECHA NICA L The sensor module is comprised of the following three primary components: 1.4.1 ENCLOSURE Explosion proof, rain-tight stainless steel electr ical housing with three ¾” FNPT conduit hubs. The enclosure cover has a viewing window. The 3 conduit hubs combined with the rotatable faceplat[...]

  • Page 7

    Model 4501-XX Toxic Gas Sensor Module Figure 1-1 Model 4501-05 Hydrogen Sulfide Gas Sensor Module– Dimensions Figure 1-2 Model 4501-05 Hydrogen Sulfide Gas Sensor Module– Orientation Options Page: 3[...]

  • Page 8

    Model 4501-XX Toxic Gas Sensor Module 2. CAUTIONS & WARNINGS 2.1 INTRODUCTION Although the 4501-XX Gas Sensor Module is designed and constructed for installation and operation in industrial applications including hostile environments, caution should be taken to insure that the installation is made in compliance with this instruction manual and [...]

  • Page 9

    Model 4501-XX Toxic Gas Sensor Module 3. QUICK START 3.1 OVERVIEW The gas sensor module has been supplied factory ca librated and ready for immediate installation and operation. An installer familiar with installation and oper ation of gas detection products can use this section to begin immediate use of the module. 3.2 WIRING Provide two conductor[...]

  • Page 10

    Model 4501-XX Toxic Gas Sensor Module 4. INSTALLATION 4.1 SENSOR MODULE LOCA TIONS The gas sensor module utilizes a diffu sion type sensor which should be loca ted close to either the expected source or destination of the gas hazard. If the gas is heavier than air, the sensor module should be installed within 24 inches of the ground or floor. If it[...]

  • Page 11

    Model 4501-XX Toxic Gas Sensor Module 1. Remove the transmitter from the module housing by: • Unscrew the two captive panel screws on the faceplate. • Lift the transmitter out of the enclosure. • Unplug the sensor cable fr om transmitter connector J1. • Remove the sensor assembly from the enclosure hub. 2. Install the module enclosure onto [...]

  • Page 12

    Model 4501-XX Toxic Gas Sensor Module 5. OPERATION 5.1 INTRODUCTION The 4501-XX Toxic Gas Sensor Module utilizes a vis ual menu system operated by means of a magnet. A magnet stick is supplied for this purpose. The menu sy stem is used to calibrate the sensor module, and for maintenance and diagnostic procedures. The following adjustments can be ma[...]

  • Page 13

    Model 4501-XX Toxic Gas Sensor Module 5.3 MA IN MENU Function Display Description Reference M E ST M E ST ME S T ME S T M E ST M E ST ME S T ME S T W arm 148 XX.XXaA Second scree n at start-up, c ount down of W arm - up H2S XXX.PP M Default Displa y (exam ple 4501-05) Key Mode Switch [M] Enter Switch [E] Up Switch [ ▲ ] Previous M enu Down Switch[...]

  • Page 14

    Model 4501-XX Toxic Gas Sensor Module 5.4 MA INTENANCE SUB-MENU Function Display Description Refere nce M E ST ME S T M E ST M E ST ME S T M E ST M E ST ME S T ME S T M E ST M E ST Enter 4mA DONE Ack nowledges 4m A ca libration or Sub-Rou tine A M- Range 100 PPM Enter Cal ibrati on Range Menu Banner: Use [ S ] o r [ T ] to chan ge range, [E] when d[...]

  • Page 15

    Model 4501-XX Toxic Gas Sensor Module 5.5 DIA GNOSTICS SUB-MENU Function Display Description Reference M E ST M E ST ME S T ME S T M E ST M E ST M E ST ME S T M E ST M E ST ME S T M E ST M E ST ME S T M E ST M E ST ME S T M E ST M E ST ME S T M E ST ME S T ME S T ME S T ME S T ME S T M E ST M E ST FactInit Done Factory initialization completed Ente[...]

  • Page 16

    Model 4501-XX Toxic Gas Sensor Module 5.5.1 NOTES When selecting the output current requested, an acknowledge message will appear on the screen. Select [E] to accept this message. Whenever a message appears on the screen, select [E] to accept the message. No other action can be taken with messages. Except for the FactInit Menu, the sub-menus in t h[...]

  • Page 17

    Model 4501-XX Toxic Gas Sensor Module 6. CALIBRATION 6.1 CA LIBRA TION FREQUENCY The sensor module must be calibrated every 180 days. Periodic functional tests are advisable for critical applications and hostile environments. The sensor module microprocessor software includes high-level self checking algorithms which provide continuous sensor diagn[...]

  • Page 18

    Model 4501-XX Toxic Gas Sensor Module 6.3 DIA GNOSTICS SUB-MENU Functio n Display Description Reference M E ST M E ST M E ST M E ST M E ST ME S T M E ST M E ST Tabl e 6-1 Calibration S ub-M enu Sub-Routine A - A bort Calibration H2S XXX PPM Defau lt Di spl ay H2S CAL-FA IL Calibration Failed Sub-Routine C - Cali bration Fail Enter READ MANUAL Opera[...]

  • Page 19

    Model 4501-XX Toxic Gas Sensor Module 7. SERVICE 7.1 SENSOR MODULE CONFIGURATION The gas sensor module is comprised of the following sub-assemblies (Figure 7-1): 4501-XX Gas Sensor Module SPL27077 Enclosure SPM27071 Transmitter Assembly XXXXXXX Sensor Assembly (see Appendix B) XXXXXXX Sensor (see Appendix B) There are no field serviceable component[...]

  • Page 20

    Model 4501-XX Toxic Gas Sensor Module TRANSMITTER REPLACEMENT The transmitter assembly should be replaced when it is determined that it is unre liable, noisy or cannot be adjusted for calibration. This may occur due to age, corrosion or failed components. To replace the transmitter assembly: a. Remove the cover of the main enclosure b. Unscrew the [...]

  • Page 21

    Model 4501-XX Toxic Gas Sensor Module • Wiring terminations clean and correct. 7.1.4 MOISTURE TRA PS A ND 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 electrical condu[...]

  • Page 22

    Model 4501-XX Toxic Gas Sensor Module 8. APPENDICES APPENDIX A: SPECIFICATIONS Specifications: Sensor: 4501-04 4501-05 4501-06 Max. Range (1) 0-1200 PPM 0-100 PPM 0-10 PPM Zero Drift +/- 1 PPM +/- 0.5 PPM +/- 0.5 PPM Repeatability +/- 1 PPM +/- 1 PPM +/- 0.5 PPM Linearity +/- 1 PPM +/- 1 PPM +/- 0.5 PPM Resolution 0.5 PPM 0.1 PPM 0.1 PPM Response T[...]

  • Page 23

    Model 4501-XX Toxic Gas Sensor Module Page: 19 Warranty: Limited warranty : 2 y ear specificat ions subject to change without notice Model Number Gas Type CO H 2 S CI 2 H 2 SO 2 NO 2 NO HCI HCN C 2 H 4 4501-04-IT CO 100 5 0 <20 0 0 6 0 0 <50 4501-05-IT H 2 S <2 100 -20 <0.1 <15 -15 0 0 0 0 4501-06-IT C1 2 0 <-10 100 0 0 105 0 0 0 [...]

  • Page 24

    Model 4501-XX Toxic Gas Sensor Module APPENDIX B: MODEL NUMBERS & PARTS LIST Sensor Module 4501-04 Sensor Module 2-w ire, CO 4501-05 Sensor Module 2-w ire, H2S 4501-06 Sensor Module 2-w ire, CI 2 Options 5394-52 Remote Sensor/Display Option 5311-00 Rainshield Calibration Items 1250-01 Gas Sensor Calibration Kit, Type A (CO , H 2 S) 1250-03 Gas [...]

  • Page 25

    Model 4501-XX Toxic Gas Sensor Module Page: 21 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 shipment. SMC will repair or replace without charge any equipment found to be defective during the warrant y period[...]