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Spectrex SharpEye 40I User Manual

Triple ir ir3 flame detector
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Model 40/40I
Triple IR (IR3) Flame Detector
User Guide
FM, CSA Approved:
ATEX, IECEx Approved
Class I Div. 1 Groups B, C, D
Ex II 2 GD, EExde IIB+ H2 T5 (75°C)
Class II/III Div. 1 Groups E, F, G
Document ref: TM 40/40I, Rev (1) September 2008
218 Little Falls Rd., Cedar Grove, NJ 07009, USA
Phone: +1 (973) 239 8398
Fax: +1 (973) 239 761
Web-Site: www.spectrex-inc.com; Email:
spectrex@spectrex-inc.com

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  • Page 1 Ex II 2 GD, EExde IIB+ H2 T5 (75°C) Class II/III Div. 1 Groups E, F, G Document ref: TM 40/40I, Rev (1) September 2008 218 Little Falls Rd., Cedar Grove, NJ 07009, USA Phone: +1 (973) 239 8398 Fax: +1 (973) 239 761 Web-Site: www.spectrex-inc.com; Email: spectrex@spectrex-inc.com...

  • Page 3: Legal Notice

    Spectrex Inc. reserves the right to make changes to any products described herein to improve reliability, function, or design, and reserves the right to revise this document and make changes from time to time in content hereof with no obligation to notify any persons of revisions or changes.

  • Page 4: Release History

    Release History Date Revision History Prepared by Approved by May 20, 2008 First Release Ian Buchanan Eric Zinn Sept 22, 2008 Second Release Ian Buchanan Eric Zinn...

  • Page 5: About This Guide

    About this Guide This guide describes the SharpEye Model 40/40I Triple IR (IR3) Flame Detector and its features and provides instructions on how to install, operate and maintain the detector. This guide includes the following chapters and appendixes:  Chapter 1, Introduction, provides a general overview of the product, principles of operation, and performance considerations.

  • Page 6: Abbreviations And Acronyms

    Abbreviations and Acronyms Abbreviation Meaning ATEX Atmosphere Explosives American Wire Gauge Built In Test Electromagnetic Compatibility End of Line Field of View HART Highway Addressable Remote Transducer- communication protocol Immune at Any Distance IECEx International Electrotechnical Commission Explosion Isopropyl Alcohol Infrared Jet Fuel Latching...

  • Page 7: Table Of Contents

    Table of Contents Model 40/40I Triple IR (IR3) Flame Detector User Guide ........ i Legal Notice ....................iii Warranty ......................iii Release History ....................iv About this Guide ....................v Abbreviations and Acronyms ................vi Introduction ....................1 Overview ....................1 Model and Types ..................
  • Page 8 Installation Cables ................23 2.5.1 Conduit Installation ................23 Installing the Tilt Mount (part no. 40/40-001) .......... 24 2.6.1 Tilt Mount Specifications ..............25 2.6.2 Tilt Mount Assembly ................25 Connecting the Detector ................ 27 2.7.1 Verifying the Detector Wiring ............... 28 Configuring your Detector ..............
  • Page 9 Wiring Instructions.................. 51 General Instructions for Electrical Wiring ..........51 Typical Wiring Configurations ..............53 RS-485 Communication Network ............. 57 RS-485 Overview .................. 57 Accessories ....................59 Long Range IR3 Fire Simulator ............... 59 D.1.1 Unpacking ..................60 D.1.2 Operating Instructions ..............60 D.1.3 Range ...................
  • Page 10 List of Figures Figure 1: Horizontal Field of View ................. 9 Figure 2: Vertical Field of View ................9 Figure 3: Indication LED: Indication LED .............. 11 Figure 4: Detector with Tilt Mount ............... 24 Figure 5: Tilt Mount Assembly ................25 Figure 6: Tilt Mount Assembly (dimensions in mm and inches) ........
  • Page 11 List of Tables Table 1: Wiring Options ..................3 Table 2: Sensitivity Range Levels ................. 8 Table 3: Fuel Sensitivity Ranges ................8 Table 4: Immunity to False Alarm Sources ............10 Table 5: Welding Immunity Distance ..............11 Table 6: LED Indications ..................11 Table 7: Available Output Types ................
  • Page 12 List of Tables...

  • Page 13: Introduction

    Introduction ➣ In this chapter… Overview page 1 Model and Types page 2 Features and Benefits page 4 Principles of Operation page 4 Performance Considerations page 7 Internal Detector Tests page 14 Overview The SharpEye 40/40I is a flame detector that utilizes improved IR3 technology to provide state-of-the-art fire protection.

  • Page 14: Model And Types

    SharpEye IR3 Flame Detector User Guide Model and Types The 40/40I is provided in various configurations depending on:  Wiring options  Temperature ranges  Type of cable entries  Housing type  Required approval The configuration detail is included in the product part number on the product label and takes the form: 40/40I XXXXX, where XXXXX defines the model according to the above requirements.

  • Page 15: Table 1: Wiring Options

    TM 40/40I, Rev. (1) September 2008 Table 1: Wiring Options Wiring Connections Provided Option Fault Alarm Manual 4-20mA Power Relay Relay RS-485 Sink Fault Alarm Manual 4-20mA Power Relay Relay RS-485 Source Fault Alarm Manual 4-20mA Power Relay Relay RS-485 Source Fault Alarm...

  • Page 16: Features And Benefits

    SharpEye IR3 Flame Detector User Guide Features and Benefits  Detection Range: Up to 215 ft (65m) for a 1 ft (0.1m ) n-heptane fire.  Ultra High Immunity to False Alarms: See Table 4 on page 10.  Advanced Digital Processing of the Dynamic Characteristics of Fire: Flickering, threshold correlation and ratio.

  • Page 17: Heated Optics

    TM 40/40I, Rev. (1) September 2008 The original IR3 technique (such as implemented in the SharpEye 20/20I flame detector) utilizes three infrared sensors, each sensitive to its own wavelength range. The first sensor is sensitive to wavelengths within the emission peak of hot CO .

  • Page 18: Rs-485 Modbus

    SharpEye IR3 Flame Detector User Guide 1.4.4 RS-485 Modbus For more advanced communications, the 40/40 detector has an RS 485 Modbus-compatible output that provides data communication from a network (up to 247 detectors) to a host computer or universal controller for central monitoring.

  • Page 19: Performance Considerations

    TM 40/40I, Rev. (1) September 2008  For more details and guidelines for configuring, installing, operating and service – see SIL-2 Features on page 67 and TÜV Report No. 968/EZ326.00/008. 1.4.5.4 EN54-10 The 40/40I Flame Detector is certified to EN54-10 and CPD. ...

  • Page 20: Table 2: Sensitivity Range Levels

    SharpEye IR3 Flame Detector User Guide Table 2: Sensitivity Range Levels Level Response Time (sec) Sensitivity Range- ft (m) 50 (15) 2 Default 100 (30) 150 (45) 215 (65) For some typical ambient conditions the Zeta parameter as defined in NFPA 72 for the detector is 0.005 (1/meter).

  • Page 21: Cone Of Vision

    TM 40/40I, Rev. (1) September 2008 1.5.2 Cone of Vision  Horizontal: 100° Figure 1: Horizontal Field of View  Vertical: +50° (down) , -45° (up) Figure 2: Vertical Field of View Performance Considerations...

  • Page 22: False Alarms Prevention

    SharpEye IR3 Flame Detector User Guide 1.5.3 False Alarms Prevention To prevent false alarms, the detector will not alarm or react to the radiation sources specified in Table 4. Table 4: Immunity to False Alarm Sources Immunity Radiation Source Distance ft (m) Indirect or reflected sunlight Vehicle headlights (low beam) conforming to MS53023-1...

  • Page 23: Visual Indicators

    TM 40/40I, Rev. (1) September 2008 Table 5: Welding Immunity Distance Sensitivity Setting Detection Range Immunity Distance 50 ft (15m) >6 ft (2m) 100 ft (30m) >12 ft (4m) 150 ft (45m) >17 ft (6m) 215 ft (65m) >25 ft (7.5m) 1.5.4 Visual Indicators One 3-color LED indicator is located inside the detector window, as shown in...

  • Page 24: Output Signals

    SharpEye IR3 Flame Detector User Guide 1.5.5 Output Signals Outputs are available according to the default configuration or the wiring options selected for the 40/40I IR3 Detector. Determine the outputs for your model according to Table 7. The detector incorporates several types of output suitable to different control systems: ...

  • Page 25: Detector Status

    TM 40/40I, Rev. (1) September 2008 1.5.6 Detector Status The possible detector function statuses are listed in Table 8. A more detailed fault analysis can be seen via HART or RS485. Table 8: Detector Status Status Description Normal Normal operation. Built-In-Test being performed.

  • Page 26: Auxiliary Relay As End-Of-Line Resistor

    SharpEye IR3 Flame Detector User Guide The detector will remain in BIT Fault state until it has passed a successful BIT. The Auxiliary Relay can be activated at the Warning level or Alarm level, depending on programmed function. The outputs depend on the wiring options. 1.5.6.1 Optional Latching Alarms are set as non-latching by default.

  • Page 27: Built-In-Test (Bit)

    TM 40/40I, Rev. (1) September 2008  Processor Watch dog  Software  Memory  Oscillator frequency Response to Fault Indication If a failure is found, the detector indicates by:  Fault relay:  Opens in wiring option 1, 2, and 4 ...

  • Page 28: Table 10: Results Of A Successful Bit

    SharpEye IR3 Flame Detector User Guide 1.6.2.2 Automatic BIT The detector automatically performs a BIT every 15 minutes. A successful BIT sequence does not activate any indicator. The results of a successful and unsuccessful BIT are listed in Table 10 and Table 11.

  • Page 29: Table 12: Results Of A Successful Manual Bit

    TM 40/40I, Rev. (1) September 2008 Table 12: Results of a Successful Manual BIT Output Result FAULT relay Wiring options 1, 2, and 4: remains CLOSED (Normal)  Wiring options 3 and 5: remains OPEN (Normal)  ALARM relay Activated for 3 sec (only when the function Alarm BIT is set to YES) AUXILIARY For wiring options 4 and 5: is activated for 3 sec (only...
  • Page 30 SharpEye IR3 Flame Detector User Guide Internal Detector Tests...

  • Page 31: Installing The Detector

    Installing the Detector ➣ In this chapter… General Guidelines page 19 Unpacking the Product page 20 Required Tools page 21 Certification Instructions page 22 Installation Cables page 23 Installing the Tilt Mount (part no. 40/40-001) page 24 Connecting the Detector page 27 Configuring your Detector page 29...

  • Page 32: Unpacking The Product

    SharpEye IR3 Flame Detector User Guide  Aiming the Detector:  The detector should be aimed toward the center of the detection zone and have a completely unobstructed view of the protected area.  Whenever possible, the detector face should be tilted down at a 45º angle to maximize coverage and prevent accumulation of dust and dirt.

  • Page 33: Required Tools

    TM 40/40I, Rev. (1) September 2008 Required Tools The detector can be installed using general-purpose common tools and equipment. Table 14 lists the specific tools required to install the detector. Table 14: Tools Tool Function Hex Key inch Mount the detector on the tilt mount. ...

  • Page 34: Certification Instructions

    SharpEye IR3 Flame Detector User Guide Certification Instructions Warning: Do not open the detector, even when isolated, when flammable atmosphere present. Use the following certification instructions:  The cable entry point may exceed 167°F (75°C). Suitable precautions should be taken when selecting the cable. ...

  • Page 35: Installation Cables

    TM 40/40I, Rev. (1) September 2008 Installation Cables Follow the following guideline for the cable installation:  All cables to the detector must be well shielded in order to comply with EMC requirement (see Technical Specifications on page 62).  Ground the detector to the nearest ground point (not more than 3m from the detector location).

  • Page 36: Installing The Tilt Mount (Part No. 40/40-001)

    SharpEye IR3 Flame Detector User Guide Installing the Tilt Mount (part no. 40/40-001) The Tilt Mount enables the detector to be rotated up to 60º in all directions. Figure 4 shows the Detector mounted on the Tilt Mount. Figure 4: Detector with Tilt Mount Installing the Tilt Mount (part no.

  • Page 37: Tilt Mount Specifications

    TM 40/40I, Rev. (1) September 2008 2.6.1 Tilt Mount Specifications Table 15: USA Version Item Type Location Tilt Mount 40/40-001 Screw ¼" 20 UNC x ¾" Detector – Holding plate Spring Washer No. ¼" Detector - Holding plate Table 16: European Version Item Type Location...

  • Page 38: Figure 6: Tilt Mount Assembly (Dimensions In Mm And Inches)

    SharpEye IR3 Flame Detector User Guide Figure 6 shows the Tilt Mount Assembly with dimension in both millimeters and inches. Figure 6: Tilt Mount Assembly (dimensions in mm and inches) ➣ To install the Tilt Mount and Detector: Place the tilt mount in its designated location and secure it with four (4) fasteners through four (4) holes 7 mm in diameter.

  • Page 39: Connecting The Detector

    TM 40/40I, Rev. (1) September 2008 Connecting the Detector This section describes how to connect the electric cabling to the detector (Figure 7). ➣ To connect the detector to the electrical cables Disconnect the power. Remove the back cover of the detector by removing four (4) socket head-screws in the cover bolts.

  • Page 40: Verifying The Detector Wiring

    SharpEye IR3 Flame Detector User Guide Check the wires for secure mechanical connection and press them neatly against the terminal to prevent them from interfering while closing the back cover (Figure 7). Place and secure the detector‟s back cover by screwing the four (4) socket-head-screws in the Cover Bolts (Figure 4).

  • Page 41: Configuring Your Detector

    You can reprogram the function setup using the RS-485 connection or using the Hart Protocol as follows:  Spectrex Host Software: The Spectrex Host Software is for use on a PC or laptop. Refer to Manual TM777050 for programming instructions. The Host software enables you to change the functions.

  • Page 42: Sensitivity

    SharpEye IR3 Flame Detector User Guide  Alarm BIT – No  Auxiliary BIT – No  EOL – No  Heated Optics – Auto  Temperature – 20 2.8.1 Sensitivity The detector offers four (4) sensitivity settings. The settings refer to an n-heptane or gasoline fire of 1ft²...

  • Page 43: Function Set-Up

    TM 40/40I, Rev. (1) September 2008 2.8.4 Function Set-up You can select the desired functions as detailed in the following table. Table 19: Functions Function Setting Alarm Latch Yes: Enable Alarm latching.  No: Disable Alarm latching (default).  Auxiliary Relay** Yes: Activate Auxiliary Relay at Warning level.
  • Page 44 SharpEye IR3 Flame Detector User Guide Configuring your Detector...

  • Page 45: Operating The Detector

    Operating the Detector ➣ In this chapter… Powering Up page 33 Safety Precautions page 34 Testing Procedures page 36 This chapter describes how to power up and test the detector. It also includes some very important safety checks that you should make before operating the detector.

  • Page 46: Safety Precautions

    (in degrees Celsius).  In order to change the default function use:  P.C with Spectrex software, refer to Manual 777050 for instructions.  Handheld unit, refer to Manual 777060 for instructions. Safety Precautions...
  • Page 47 TM 40/40I, Rev. (1) September 2008  USB cable with 485 converter (1 m) part number 794079-5.  HART Protocol, refer to Manual 777030 for instructions. Safety Precautions...

  • Page 48: Testing Procedures

    This section describes the proof testing procedure for proper operation of the detector. The detector can be tested using the Manual Built-in-Test or the Spectrex IR3 Fire Simulator - 20/20-310. The detector performs internal test continuously and automatic BIT test every 15 minutes for more details refer to Built-In-Test (BIT) on page 15.

  • Page 49: Table 21: Results Of Successful Fire Simulator Test

    TM 40/40I, Rev. (1) September 2008 Aim the Spectrex Fire Simulator Model 20/20-310 at the target point of the detector (Figure 14), in a way that the radiation emitted by it is facing directly towards the detector. (See Long Range IR3 Fire Simulator on page 59).
  • Page 50 SharpEye IR3 Flame Detector User Guide Testing Procedures...

  • Page 51: Maintenance And Troubleshooting

    This chapter deals with preventive maintenance, describes possible faults in detector operation and indicates corrective measures. Ignoring these instructions may cause problems with the detector and may invalidate the warranty. Whenever a unit requires service, please contact Spectrex or its authorized distributor for assistance. Maintenance...

  • Page 52: Periodic Procedures

    Serial and tag no.  Entries for every maintenance operation performed, including the description of the operation, date and personnel ID. If a unit is sent to Spectrex or a distributor for service, a copy of the maintenance records should accompany it. Maintenance...

  • Page 53: Troubleshooting

    TM 40/40I, Rev. (1) September 2008 Troubleshooting This section is intended to be a guide to correct problems which may happen during normal operation. Table 22: Troubleshooting Table Problem Cause Corrective Action LEDs Off No power at the Check that the correct power ...
  • Page 54 SharpEye IR3 Flame Detector User Guide Troubleshooting...

  • Page 55: Appendices

    Appendices Appendices...
  • Page 56 SharpEye IR3 Flame Detector User Guide Appendices...

  • Page 57: Technical Specifications

    Technical Specifications ➣ In this appendix… Electrical Specifications page 45 Mechanical Specifications page 47 Dimensions page 48 Weight page 48 Environmental Specifications page 48 Electrical Specifications Operating 18-32 VDC Voltage Power Without Heated Optic:  Consumption Max. 100 mA in Standby Max.

  • Page 58: Table 23: Contact Ratings

    SharpEye IR3 Flame Detector User Guide Electrical Dry Contact Relays  Outputs Table 23: Contact Ratings Relay Type Normal Maximum Name Position Ratings Alarm DPST N.O., N.C. 2A at 30 VDC or 0.5A at 250 VAC Auxiliary SPST N.O. 5A at 30 VDC or 250 VAC Fault *...

  • Page 59: Mechanical Specifications

    TM 40/40I, Rev. (1) September 2008 Perform detector diagnostics  Troubleshoot  For more details refer to HART Manual 777030. Communication Network: The detector is equipped  with an RS-485 communication link that can be used in installations with computerized controllers. The communications protocol is Modbus compatible.

  • Page 60: Dimensions

    SharpEye IR3 Flame Detector User Guide Dimensions 5" x 4.5" x 6.4" (127 x 117 x 156 mm) Weight Stainless Steel: 5.5 lb (2.5 kg) Aluminium: 2.5 lb (1.2 kg) Environmental Specifications The SharpEye 40/40I is designed to withstand harsh environmental conditions.
  • Page 61 TM 40/40I, Rev. (1) September 2008 Electromagnetic This product is in conformance with EMC directive Compatibility (EMC) 89/336/EC: Conducted Disturbances: IEC/EN61000-4-6  ESD: IEC/EN61000-4-2  Burst: IEC/EN61000-4-4  Surge: IEC/EN61000-4-5  Immunity to main supply voltage variations:  MIL-STD-1275B Radiated Immunity – IEC/EN61000-4-3 ...
  • Page 62 SharpEye IR3 Flame Detector User Guide Environmental Specifications...

  • Page 63: B Wiring Instructions

    Wiring Instructions ➣ In this appendix… General Instructions for Electrical Wiring page 51 Typical Wiring Configurations page 53 General Instructions for Electrical Wiring Follow the instructions detailed in this section for determining the correct wire gauge to be used for the installation. Use Table 25 to determine the required wire gauge /size for general wiring, such as relay wiring.

  • Page 64: Table 26: Wiring Length In Feet (Meter)

    SharpEye IR3 Flame Detector User Guide Table 26: Wiring length in feet (meter) Power Number Supply Recommended Wire Diameter (AWG) Range Detectors (VDC) 22-32 22-32 22-32 20-32 20-32 4 and less 20-32 Ft (m) (50) (100) (150) (200) (240) Max. Length from Power Supply to Last Detector Typical Wiring Configurations...

  • Page 65: Typical Wiring Configurations

    TM 40/40I, Rev. (1) September 2008 Typical Wiring Configurations This section describes examples of typical wiring configurations. Figure 8: Wiring Terminals Typical Wiring Configurations...

  • Page 66: Figure 9: Typical Wiring For 4 Wire Controllers (Using Option 1 Or 2 Wiring)

    SharpEye IR3 Flame Detector User Guide Table 27: Wiring Connections Wiring Detector Terminals Option Model 40/40I- Fault Relay 0-20mA 0-20mA 1XXXX (N.C) (Sink) (Sink) 40/40I- Fault Relay Alarm Relay 0-20mA Duct 2XXXX (N.C) (N.C) Source 40/40I- Fault Relay Alarm Relay 0-20mA Duct 3XXXX (N.O)

  • Page 67: Figure 10: 0-20Ma Wiring (Sink) 4-Wire Connection

    TM 40/40I, Rev. (1) September 2008 Figure 10: 0-20mA Wiring (Sink) 4-Wire Connection (For Source version, link Terminals 1 and 8) Figure 11: 0-20mA Wiring (Source) 3-Wire Connection Notes: The detectors are supplied as:  Isolated 0-20mA – Sink in wiring option 1. ...
  • Page 68 SharpEye IR3 Flame Detector User Guide Typical Wiring Configurations...

  • Page 69: Crs-485 Communication Network

    247 on the same four (4) wires. When using the RS-485 network, it is possible to read each detector status (FAULT, WARNING, and ALARM) and to initiate a BIT to each detector individually. For more details, consult Spectrex. Figure 12: RS-485 Networking RS-485 Overview...
  • Page 70 SharpEye IR3 Flame Detector User Guide RS-485 Overview...

  • Page 71: Accessories

    Accessories ➣ In this appendix… Long Range IR3 Fire Simulator page 59 Tilt Mount - P/N 40/40-001 page 62 Weather Protection - P/N 777163 page 63 Laser Detection Coverage Pointer - P/N page 64 777166 Air Shield - P/N 777161 page 65 This appendix describes the accessories that can help you maximize fire detection with the SharpEye IR3 flame detector:...

  • Page 72: Unpacking

    SharpEye IR3 Flame Detector User Guide D.1.1 Unpacking Verify that you have received the following contents:  Delivery form  Fire Simulator with integral batteries  Battery charger  Optional Beam Collimator  Storage case D.1.2 Operating Instructions Warning: Do not open the Fire Simulator to charge the batteries or for any other reason in a hazardous area.

  • Page 73: Range

    TM 40/40I, Rev. (1) September 2008 D.1.3 Range Table 28: Sensitivity Ranges Sensitivity Detection Standard Test Extended Test Range (ft / m) Range (ft / m) Range (ft / m) 1 (Low) 50 / 15 3.8 / 1.2 7 / 2.2 100 / 30 7 /2.2 14.5 / 4.5...

  • Page 74: Technical Specifications

    SharpEye IR3 Flame Detector User Guide D.1.5 Technical Specifications Explosion Proof Enclosure: Mechanical  NFPA (designed to meet)  Class I, Division 1 & 2 Groups B, C and D  Class II, Division 1 & 2 Groups E, F and G ...

  • Page 75: Weather Protection - P/N 777163

    TM 40/40I, Rev. (1) September 2008 Weather Protection - P/N 777163 The weather protector protects the detector from different weather conditions, such as snow and rain. Figure 16: Weather Protection Weather Protection - P/N 777163...

  • Page 76: Laser Detection Coverage Pointer - P/N 777166

    SharpEye IR3 Flame Detector User Guide Laser Detection Coverage Pointer - P/N 777166 The Laser Detection Coverage Pointer evaluates detector coverage on-site. The device is an add-on accessory that enables designers and installers to optimize detector location and assess the actual coverage of installed detectors.

  • Page 77: Air Shield - P/N 777161

    TM 40/40I, Rev. (1) September 2008 Air Shield - P/N 777161 The Air Shield enables you to install the detector in dirty areas and using compressed air, keep the window clean. This prevents the accumulation of dirt on the window and enables the detector to continue to operate under harsh conditions.
  • Page 78 SharpEye IR3 Flame Detector User Guide Air Shield - P/N 777161...

  • Page 79: Sil-2 Features

    SIL-2 Features ➣ In this appendix… 40/40I Flame Detector page 67 40/40I Flame Detector This appendix details the special conditions to comply with the requirements of EN 61508 for SIL 2. The 40/40I Flame Detector can only be used in low or high demand mode applications, see IEC 61508.4, Chapter 3.5.12.
  • Page 80 SharpEye IR3 Flame Detector User Guide E.1.2.1 Conditions for Safe Operating The flame detector shall consist only of the approved hardware and software modules. The 24V power supply must fulfill the requirements for PELV / SELV of EN 60950. The automatic BIT (Built-In-Test) must be activated. The set-up parameters must be verified (as described in Using the 4- 20mA Interface for Alerting on page 68, point 1 and in Using the Alarm Relay Contact for Alerting on page 68, point 1) and the function of the...
  • Page 81 TM 40/40I, Rev. (1) September 2008 E.1.2.4 Other The complete function of the flame detector (flame detection, function of the 4-0mA interface, the relays) must be examined at least every six or twelve months (see Safety Relevant Parameters on page 67, when the flame detector must be switched OFF and ON.

  • Page 82: Technical Support

    Tel: (973) 239 8398 Fax: (973) 239 7614 Email: spectrex@spectrex-inc.com Web-site: www.spectrex-inc.com Your Local Authorized Distributor: SPECTREX INC. New Jersey (USA) Key Person: President: Mr. Eric Zinn 218 Little Falls Road. Cedar Grove, NJ 07009 +1 (973) 239 8398 +1 (800) 452 2107...

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