9
SBS-H2 Users Manual
Rev 1.4
January 6
th
2013
Terminal Connection Diagram:
Earth GND
Negative
+12 VDC OR
+14-48 VDC
Using the Mechanical Relays:
1. Remove the front cover of the detector by pulling straight off the body. This will reveal
the inner electronics of the alarm box.
2.
Locate items C and D, and determine which condition you would like to use the relay to
be related to. Use Relay C for the warning condition (1% H
2
) and relay D for the alarm
condition (2% H
2
).
3. Restore the front covering of the alarm box and re-secure the two removed screws.
8.0 Operation
Keep the detector on at all times. A Green LED indicates that the detector is powered on.
N
/C
N
/O
COM
N
/C
N
/O
COM
EARTH(GN
D
)
GN
D
(IS
O)
+
12
V
D
C
+14
-4
8
V
D
C
120VAC LINE
EARTH (GND)
NEUTRAL
1% Warning Contacts
2% Alarm Contacts
AC Power Supply Terminals
DC Power Supply Terminals
Pre-March 2016 Version
