Crowcon Gasmaster - Page 13

Crowcon Gasmaster Installation
9
+
-
DETECTOR
Channel Link Settings
Gasmaster
Detector Input
Terminals
I.S. Link Settings
S
-
DETECTOR
Channel Link Settings
Gasmaster
Detector Input
Terminals
+
I.S. Link Settings
0V
SIG
SCR
PWR
78
12
Z728
I.S. Earth
-
+
Gas Detector
Hazardous Area
Channel Link Settings
Safe Area
4-20mA Current Sink
P&F Z728 Zener Barrier
Crowcon Part Number: C03317
Crowcon Part Number: C03317
P&F Z728 Zener Barrier
Safe Area
Hazardous Area
Channel Link Settings
I.S. Earth
Z728
ORBIS Smoke or Heat Detectors
SOURCE
FIRE
SINK
I.S. Link Settings
I.S. Link Settings
Figure 2.7 Typical connections for 2 wire I.S. detector with Zener barrier, 4-20mA/Fire input module Set channel link
to SINK (see figure 2.5) and configuration to DET4-20 SINK (see Menu System Overview section, page 25 and 33.
Refer to earth connection requirements on Figure 2.5, page 7
SAFE
AREA
HAZARDOUS
AREA
0V
SIG
SCR
PWR
+
–
+
–
Detector
Detector
MTL
5541
Pepper
l&
Fuchs
KFD2-STC4-Ex1.H
1
2
1
1
12
13
14
–
+
20-35Vd
c
suppl
y
3
1
7
8
15
1
4
–
+
20-35Vd
c
suppl
y
0V
SIG
SCR
PWR
Channel Link Settings
FIRE
SINK
SOURCE
I.S. Link Settings
Figure 2.8 Typical connections for 2 wire I.S. detector with Galvanic Isolator, 4-20mA/Fire input module. Set channel
link to SRCE (see figure 2.5) and configuration to DET4-20 SRCE (see Menu System Overview section, page 25 and 33.