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Chapter 1. Installation and Wiring
1.11 Connecting an Auxiliary Device
moisture.IQ can power an auxiliary device (such as a loop power transmitter) in which the connection is +24V to Aux
1 or 2. For external power devices with output directly connected to the auxiliary device, you can use aux 1 or 2 with
respect to RTN (pin 5). Make the connections to the right-side group of probe connections (
that are rated for non-hazardous area use. Users set the voltage/current for the auxiliary input and the electronics will
automatically switch the circuits, so the moisture.IQ has no physical switch to toggle. Figure 23 and Figure 24 below
show the connections and wiring for auxiliary devices.
Note: If you are connecting the oxy.IQ to AUX-IN, the oxy.IQ's shield needs to be terminated to the moisture.IQ via
RTN (pin 5). In order to expose the shield wire, strip back the cable jacket.
28
Auxiliary Connections
Figure 23: Auxiliary Connections
ANALOG OUT
1
2
3
4
5
+
-
+
-
Analog Out
Analog Out
Volt/Current
Volt/Current
A
B
5
Figure 24: Auxiliary Device Wiring Diagram
AUX IN
External Power Mode
6
7
8
.
-
+
+
+
-
+
-
Aux In 1
Aux In 2
OR
Loop Powered Mode
6
7
8
.
-
-
+
+
-
+
-
Aux In 1
Aux In 2
AUX IN/OUT
ALARMS
and
moisture.IQ User's Guide
)
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