Spectrex 20/20U (UB) - UV Flame Detector - Manual (Page 5)

Spectrex Inc. - SharpEye™ UV Flame Detector Manual – TM 20/20UB Rev. E, August 2004
I
T ABLE O F C ONTENTS
1. Scope................................................................................................................1
1.1 Product Overview ........................................................................................1
1.2 Document Overview ....................................................................................1
2. Technical Description........................................................................................2
2.1 Principles Of Operation ...............................................................................2
2.2 The Sensing Element ..................................................................................2
2.3 Detection Levels..........................................................................................2
2.4 Alarm Signal Delay......................................................................................3
2.5 Built-In-Test (BIT) Capabilities.....................................................................3
2.6 Detector Structure .......................................................................................3
2.7 System Configuration ..................................................................................3
2.8 Detector Types ............................................................................................4
3. Performance .....................................................................................................6
3.1 Detection Sensitivity ....................................................................................6
3.2 Cone Of Vision ............................................................................................7
3.3 False Alarms ...............................................................................................8
4. Operation ..........................................................................................................9
4.1 Visual Indications ........................................................................................9
4.2 Output Signals.............................................................................................9
4.3 Mode Selection..........................................................................................10
4.3.1 Function switch (SW1)........................................................................10
4.3.2 Alarm Delay Switch (SW2) – default 5 sec. ........................................12
4.4 Detector States..........................................................................................13
4.5 Built-In-Test (refer to 2.5) .........................................................................14
5. Technical Specifications .................................................................................16
5.1 Electrical Specifications.............................................................................16
5.2 Mechanical Specifications .........................................................................18
5.3 Environmental Specifications ....................................................................19
6. Installation Instructions ...................................................................................20
6.1 Introduction................................................................................................20
6.2 General Considerations.............................................................................20
6.3 Preparations For Installation......................................................................21
6.4 Conduit Installation....................................................................................21
6.5 Detector Mounting .....................................................................................22
6.5.1 Swivel Mount Kit .................................................................................22
6.5.2 Swivel installation (Figure 4a and 4b) .................................................22
6.6 Wiring (Refer to Fig. 5) ..............................................................................25
6.7 Terminal Wiring (Figures 6,7) ....................................................................26
6.8 Selection Of Operating Modes ..................................................................30
7. Operating Instructions.....................................................................................31
7.1 Scope ........................................................................................................31
7.2 Power-Up ..................................................................................................31
7.3 Reset.........................................................................................................31
7.4 Functional Testing .....................................................................................32