Spectrex 20/20SH - Hydrogen Flame Detector - Manual (Page 5)

Spectrex Inc. - SharpEye TM Hydrogen (SH) Flame Detector Manual – TM 784600, Rev. A, May 2005
I
T ABLE OF CONTENTS
1. Scope .................................................................................................... 1
1.1 P RODUCT O VERVIEW .....................................................................................1
1.2 D OCUMENT O VERVIEW ...................................................................................1
2. Technical Description .......................................................................... 2
2.1 P RINCIPLES O F O PERATION ............................................................................3
2.1.1 Hydrogen fire detection.........................................................................3
2.1.2 Identifying the H
2
O peak .......................................................................3
3. Performance ......................................................................................... 5
3.1 D ETECTION S ENSITIVITY .................................................................................5
3.2 C ONE O F V ISION ...........................................................................................6
3.3 F ALSE A LARMS P REVENTION ..........................................................................7
4. Operation .............................................................................................. 8
4.1 V ISUAL I NDICATIONS ......................................................................................8
4.2 O UTPUT S IGNALS ..........................................................................................9
4.2.1 Optional latching .................................................................................10
4.2.2 Built-In-Test (BIT) ...............................................................................10
4.2.3 Accessory Relay as EOL ....................................................................10
4.3 D ETECTOR M ODE S ETUP ..............................................................................11
4.3.1 Function Setup....................................................................................12
4.3.2 Sensitivity Ranges ..............................................................................12
4.3.3 Alarm Delay ........................................................................................13
4.3.4 Addresses Setup ................................................................................13
4.4 B UILT I N T EST .............................................................................................14
5.Technical Specifications..................................................................... 16
5.1 E LECTRICAL S PECIFICATIONS .......................................................................16
5.2 M ECHANICAL S PECIFICATIONS ......................................................................20
5.3 E NVIRONMENTAL S PECIFICATIONS .................................................................21
6. Installation Instructions ..................................................................... 22
6.1 S COPE ........................................................................................................22
6.2 G ENERAL C ONSIDERATIONS .........................................................................22
6.3 P REPARATIONS FOR I NSTALLATION ................................................................23
6.4 C ONDUIT I NSTALLATION ................................................................................23
6.5 D ETECTOR M OUNTING .................................................................................24
6.5.1 Swivel Mount Kit: ................................................................................24
6.5.2 Swivel installation (Figs. No. 8 and 9): ................................................24
6.6 W IRING (R EFER TO F IG . 12) .........................................................................27
6.7 T ERMINAL WIRING (S EE F IG . N O .10 AND N O .11.)...........................................28
6.8 O PERATION M ODE .......................................................................................32
7. Operating Instructions ....................................................................... 33
7.1 S COPE ........................................................................................................33
7.2 P OWER -U P .................................................................................................33
7.3 R ESET ( IF OPTIONAL LATCHING OPERATION SELECTED ) ...................................33
7.4 F UNCTIONAL TESTING ...................................................................................33
7.4.1 Manual BIT Test .................................................................................34