PureAire Monitoring Systems, Inc.
12
3.3 Wiring
The
CO
2
monitor requires a single, 3-wire shielded cable for analog output and 24
VDC power input. A three-wire shielded cable; 3-conductor, 18 AWG stranded General
Cable E2203S.30.860, or equivalent
is recommended for the connection. The analog
out and VDC power in connections are made on the terminal block inside the
transmitter housing.
These connections are made as follows:
Pin #
Connection
Description
-
Common (Signal Ground)
0V
-
Common (Signal Ground)
0V
MA
Signal Out
DC 4-20mA Output
+
Power
DC + 24V Input
+
Power
DC + 24V Input
NOTE:
PureAire has added additional contacts for +24VDC power and Common to
accommodate additional wiring for remote horns and strobes
-
Common
-
Common
mA
4-20mA signal
output to PLC
+
24VDC Power
+
24VDC Power
Identification Legend
