Spectrex 20/20SI Triple IR (IR3) Flame Detector - Manual (Page 5)

Spectrex Inc. - SharpEye TM IR3 Flame Detector Manual – TM 20/20I, Rev. (6) August 2004
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 ............................................................................2
2.1.1 Hydrocarbon fire detection....................................................................2
2.1.2 Identifying the CO
2
peak .......................................................................2
2.1.3 The limitations of IR-IR flame detectors ................................................2
2.1.4 The advantages of IR3 technology .......................................................2
3. Performance ......................................................................................... 5
3.1 D ETECTION S ENSITIVITY .................................................................................5
3.2 C
ONE
O
F
V
ISION
...........................................................................................7
3.3 F ALSE A LARMS P REVENTION ..........................................................................8
4. Operation .............................................................................................. 9
4.1 V ISUAL I NDICATIONS ......................................................................................9
4.2 O
UTPUT
S
IGNALS
........................................................................................10
4.2.1 Optional latching .................................................................................11
4.2.2 Built-In-Test (BIT) ...............................................................................11
4.2.3 Accessory Relay as EOL ....................................................................11
4.3 M
ODE
S
ELECTION
........................................................................................11
4.3.1 Function switch (SW1): .......................................................................12
4.3.2 Address switch (SW2) (Optional): .......................................................13
4.3.3 Alarm Delay switch (SW3): .................................................................14
4.4 B
UILT
I
N
T
EST
.............................................................................................15
5.Technical Specifications..................................................................... 18
5.1 E LECTRICAL S PECIFICATIONS .......................................................................18
5.2 M
ECHANICAL
S
PECIFICATIONS
......................................................................21
5.3 E
NVIRONMENTAL
S
PECIFICATIONS
.................................................................22
6. Installation Instructions ..................................................................... 23
6.1 S COPE ........................................................................................................23
6.2 G
ENERAL
C
ONSIDERATIONS
.........................................................................23
6.3 P REPARATIONS FOR I NSTALLATION ................................................................24
6.4 C
ONDUIT
I
NSTALLATION
................................................................................24
6.5 D ETECTOR M OUNTING .................................................................................25
6.5.1 Swivel Mount Kit: ................................................................................25
6.5.2 Swivel installation (Figs. No. 8 and 9): ................................................25
6.6 W
IRING
(R
EFER TO
F
IG
. 12) .........................................................................28
6.7 T
ERMINAL WIRING
(S
EE
F
IG
. N
O
.10
AND
N
O
.11.)...........................................29
6.8 M ODE S ELECTION ........................................................................................33
7. Operating Instructions ...................................................................... 34
7.1 S
COPE
........................................................................................................34
7.2 P OWER -U P .................................................................................................34
7.3 R
ESET
........................................................................................................34
7.4 F UNCTIONAL TESTING ...................................................................................34