SMC Networks 2-Wire Series manuale d’uso

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. 4501-03 FM Pending 4501-04 FM Pending 4501-05 FM Approved 4501-06 FM Pending 4501-08 4501-10 4501-12 4501-25 4501-26 Instruction Manual Part Number T13022 Rev. B[...]

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 [...]

Model 4501-XX Toxic Gas Sensor Module TABLE OF CONTENTS 1. PRODUCT DES CRIPTIO N ........................................................................................................... .................. 1 1.1 GENE RAL ................................................................................................................... ...........[...]

Model 4501-XX Toxic Gas Sensor Module 8. APPENDI CES .................................................................................................................... ........................... 19 8.1 APPENDIX A: SPECIFICAT IONS................................................................................................................. . 19[...]

Model 4501-XX Toxic Gas Sensor Module Page 1 of 33 1. PRODUCT DESCRIPTION 1.1 GENERAL 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 (if appropriate for gas type)  Non-intrusive [...]

Model 4501-XX Toxic Gas Sensor Module Page 2 of 33 Sierra Monitor electrochemical sensors provide improv ed reliability by allowing the gas to diffuse into the sensor through a capillary port, rather than diffusing th rough membranes. The result is an extremely stable sensor with very low temperature and pressure c oefficients and the capability to[...]

Model 4501-XX Toxic Gas Sensor Module Page 3 of 33 Figure 1-2 Model 4501-XX Hydrogen Sulfide Gas Sensor Module– Orientation Options Figure 1-1 Model 4501-05-AL or SS Hydrogen Sulfide Gas Sensor Module[...]

Model 4501-XX Toxic Gas Sensor Module Page 4 of 33 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 instructio[...]

Model 4501-XX Toxic Gas Sensor Module Page 5 of 33 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 [...]

Model 4501-XX Toxic Gas Sensor Module Page 6 of 33 4. INSTALLATION 4.1 SENSOR MODULE LOCATIONS The gas sensor module utilizes a diffusion type sensor which should be located 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 fl[...]

Model 4501-XX Toxic Gas Sensor Module Page 7 of 33 Figure 4-2 4-20 mA Connection 4.2 WIRING  Wire should be 18 AWG minimum at a maximum distanc e is 5,000 feet. Install conduit as required by local code or construc tion specifications.  See figure 4-2 for typical 2 terminal and 4 terminal connections. 4.3 ENCLOSURE INSTALLA TION To protect th[...]

Model 4501-XX Toxic Gas Sensor Module Page 8 of 33 4.4 TRANSMITTER A ND SENSOR INSTA LLA TION When all pre-wiring is complete: 1. Install sensor assembly in the open hub on the module enclosure. The sensor assembly thread must be fully seated into the hub and tightened to maintain explosion proof assembly. 2. Connect the sensor assembly cable to tr[...]

Model 4501-XX Toxic Gas Sensor Module Page 9 of 33 Figure 5-1 Face Plate w ith Operator Key pad 5. OPERATION 5.1 INTRODUCTION The 4501-XX Toxic Gas Sensor Module utilizes a visual menu system operated by means of a magnet with the cover in place. A magnet stick is supplied for th is purpose. Access the menu system to calibrate the sensor module, an[...]

Model 4501-XX Toxic Gas Sensor Module Page 10 of 33 Table 5-2 Key Operational Display 5.3 MA IN MENU Function Display Descr iption Referenc e M E  M E  ME   ME   M E  ME   ME   ME   4501-XX Starting Thir d screen at st art-up, will remain f or 60 seconds (4501-05) 4501-XX Version Sec ond screen at sta[...]

Model 4501-XX Toxic Gas Sensor Module Page 11 of 33 5.4 SETUP SUB-MENU The sensor module set-points menu is used to in itially set-up the range and 4-20 mA calibration.  Range: Once the Set-up menu is selected, press key [ ▼ ] twice and press [E] to activate the Range Set- up menu. Use the [ ▲ ] or [ ▼ ] keys to select Range menu and press[...]

Model 4501-XX Toxic Gas Sensor Module Page 12 of 33 Function Display Description Reference M E  ME   M E  M E  ME   ME   M E  ME   M E  M E  M E  M E  Enter H2S ACK Momentary Ac knowledge of new Set P oint Enter H2S 4mA Selects 4 mA Gas Range Adjustment Example Enter Range S.P [...]

Model 4501-XX Toxic Gas Sensor Module Page 13 of 33 5.5 MA INTENANCE SUB-MENU The maintenance menu enables the operator to view sensor and software versions. Sierra Monitor technical support has access to other values as needed. The ma intenance menu operation is described in Table 5-4. Function Display Description Reference M E  M E  M[...]

Model 4501-XX Toxic Gas Sensor Module Page 14 of 33 6. CALIBRATION 6.1 CA LIBRATION FREQUENCY The sensor module must be calibrated every 180 days at a minimum. Periodic functional tests are advisable for critical applications and hostile environments. The sensor module microprocessor software includes high-level self checking algorithms which provi[...]

Model 4501-XX Toxic Gas Sensor Module Page 15 of 33 6.5 CA LIBRATION SUB-MENU * 4501-03 – Oxygen Calibration: If area is know n to be safe with adequate air flow , you may use the surrounding air as the calibration gas . If Oxygen levels are unknow n, it is re commended to use a Zero Air gas standard. When calibrating an Oxygen module, there is n[...]

Model 4501-XX Toxic Gas Sensor Module Page 16 of 33 Figure 7-1 Module Components 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 Stainless Steel Enclosure (SPL 27085 for Aluminum Enclosure) SPM27071 Transmitter Assembly XXXXXXX Sensor Asse[...]

Model 4501-XX Toxic Gas Sensor Module Page 17 of 33 7.3 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 enclosu[...]

Model 4501-XX Toxic Gas Sensor Module Page 18 of 33 7.5.4 MOISTURE TRAPS 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 conduits and provide moisture traps[...]

Model 4501-XX Toxic Gas Sensor Module Page 19 of 33 8. APPENDICES 8.1 APPENDIX A: SPECIFICATIONS Sensor: Type: Electrochemical (1) Optional ranges available (2) Response time to 90% full signal value for applied concentration (3) Sensor life typical for use at st andard temperature and pressure w ith occa sional exposure to gas of interest (4) Sens[...]

Model 4501-XX Toxic Gas Sensor Module Page 20 of 33 Enclosure: Dimensions: 7.0 x 3.6 x 4. 0 inches (H x W x D) (17.8 x 9.1 x 11.2 cm) Weight: 2.2 lb. (1.0Kg) Al 4.6 lb. (2.1 Kg) SS Material of Construction: 316 Stainless Steel, Aluminum Housing: NEMA 4X, NEMA 7 Electrical A pprovals: Factory Mutual (FM): Hazardous Locations: FM Standards 3600, 3615[...]

Model 4501-XX Toxic Gas Sensor Module Page 21 of 33 Cross Sensitivity Data: 4501-10 Sulfur Dioxide Gas Conc. Response H 2 S 15 PPM 0 PPM NO 35 PPM -7 to 0 PPM NO 2 5 PPM -5 PPM Cl 2 5 PPM -1.5 to 0 PPM NO 2 5 PPM ~5 PPM H 2 100 PPM 0 PPM HCN 10 PPM <5 PPM HCl 5 PPM 0 PPM C 2 H 4 100 PPM 0 PPM 4501-04 Carbon Monoxide Gas Conc. Response H 2 S 15 P[...]

Model 4501-XX Toxic Gas Sensor Module Page 22 of 33 8.2 APPENDIX B: MODEL NUMBERS & PARTS LIST Sensor Module 4501-03 Sensor Module 2-wire, O 2 4501-04 Sensor Module 2-wire, CO 4501-05 Sensor Module 2-wire, H2S 4501-06 Sensor Module 2-wire, CI 2 4501-08 Sensor Module 2-wire, ClO 2 4501-10 Sensor Module 2-wire, SO 2 4501-12 Sensor Module 2-wire, [...]

Model 4501-XX Toxic Gas Sensor Module Page 23 of 33 SPL27077 Module Enclosure SS[...]

Model 4501-XX Toxic Gas Sensor Module Page 24 of 33 8.3 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 shipment. SMC will repair or replace without charge any equipment found to be defective during the warrant[...]

Model 4501-XX Toxic Gas Sensor Module Page 25 of 33 Figure 8-1 Module Components 8.4 APPENDIX D: 4501-25 & 4501-26 GAS SENSOR MODULE 1. Calibration of 4501-26 (Follow instructions in Section 6) 2. Calibration of 4501-25 (See below ) 3. Equipment Required The following tools and equipment will be required for calibration: - Permeation Device Cal[...]

Model 4501-XX Toxic Gas Sensor Module Page 26 of 33 Electrolyte/Membrane Replacement (See Fig. 8-2) – Models 4501-25 and 4501-26 The electrolyte needs to be replaced at least every six months, or if there is evidence of low sensor output. The membrane and O-Ring should be replaced at the same time that the electrolyte is replaced. 1. Equipment Re[...]

Model 4501-XX Toxic Gas Sensor Module Page 27 of 33 i. Replace the pressure compensation screw into the electrolyte supply port. j. Replace the sensor housing cover. k. Install the sensor assembly in to the enclosure hub and tighten firmly. l. Reconnect the sensor harness to the transmitter, carefully install the transmitter into the housing and re[...]

Model 4501-XX Toxic Gas Sensor Module Page 28 of 33 Figure 8-4 Model 4501-25-SS and Model 4501-26-SS Figure 8-3 Model 4501-25-AL and Model 4501-26-AL[...]

Model 4501-XX Toxic Gas Sensor Module Page 29 of 33 8.5 APPENDIX E: US FM APPROVAL .[...]

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Model 4501-XX Toxic Gas Sensor Module Page 31 of 33 8.6 APPENDIX F: CANADIAN FM APPROVAL .[...]

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Model 4501-XX Toxic Gas Sensor Module Page 34 of 33 INDEX 4-20MA 11 AMMONIA 24 CALIBRATION 4, 14 DATA ENTRY KEYPAD 9 ENCLOSURE 2, 7, 16 FM 1, 28, 30 INSTALLATION 5, 17 MAINTENANCE 13 MOUNTING 1 POWER 2 RANGE 11 SENSOR 2, 4, 6, 14, 16, 17 SET-UP 11 SPECIFICATIONS 19 THEORY OF OPERATION 1 TRANSMITTER 2, 5, 8, 17 TROUBLESHOOTING 18 WIRING 4, 5[...]