Spectrex Inc. - SharpEyeTM Mini IR3 Flame Detector Manual – TM 787100, Rev. D April 2011
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TABLE OF CONTENTS
1. Scope.....................................................................................................1
1.1 PRODUCT OVERVIEW .....................................................................................1
1.2 DOCUMENT OVERVIEW...................................................................................2
2. Technical Description.............................................................................3
2.1 PRINCIPLES OF OPERATION............................................................................3
2.1.1 Hydrocarbon fire detection....................................................................3
2.1.2 Identifying the CO2peak.......................................................................3
2.1.3 The limitations of IR-IR flame detectors................................................3
2.1.4 The advantages of IR3 technology .......................................................3
2.1.5 Modbus RS-485....................................................................................4
2.1.6 Use in Hazardous Atmosphere.............................................................4
2.1.7 Types and Models ................................................................................5
3. Performance...........................................................................................9
3.1 DETECTION SENSITIVITY.................................................................................9
3.2 CONE OF VISION .........................................................................................11
3.3 FALSE ALARMS PREVENTION ........................................................................12
4. Operation .............................................................................................14
4.1 VISUAL INDICATIONS ....................................................................................14
4.2 OUTPUT SIGNALS ........................................................................................15
4.2.1 Optional latching.................................................................................16
4.2.2 Built-In-Test ........................................................................................16
4.3 Detector Mode Setup.............................................................................16
4.3.1 Detector setting...................................................................................16
4.3.2. Detector’s various functions...............................................................16
4.3.3. Detector Default Set Up.....................................................................18
4.4 BUILT IN TEST .............................................................................................18
4.4.1. General..............................................................................................18
4.4.2. Principles...........................................................................................19
4.4.3. Automatic & Manual BIT....................................................................19
4.4.4. Manual BIT only.................................................................................19
5.Technical Specifications........................................................................20
5.1 ELECTRICAL SPECIFICATIONS .......................................................................20
5.2 MECHANICAL SPECIFICATIONS ......................................................................21
5.3 ENVIRONMENTAL SPECIFICATIONS.................................................................22
6. Installation Instructions.........................................................................23
6.1 SCOPE........................................................................................................23
6.2 GENERAL CONSIDERATIONS .........................................................................23
6.3 PREPARATIONS FOR INSTALLATION................................................................24
6.4 CERTIFICATION INSTRUCTIONS......................................................................25
6.5 CONDUIT INSTALLATION................................................................................26
6.5.1 Tilt Kit P/N 787639..............................................................................26
6.5.2 Tilt installation (Figs. No. 6 and 7) ......................................................26
6.6 DETECTOR MOUNTING .................................................................................29
6.7 WIRING FUNCTION .......................................................................................29