IM-P402-72 AB Issue 6
10
1
2
3
Termination
box
Screen
Brown
Red
Orange
Black
Flying leads supplied
with PA20
(
approximate 300 mm [12"]
)
*
*
See PA20 Installation and Maintenance Instructions
for sensitivity selection
10
11
IN 1
12
LC2300
controller
Fig. 7 Loop powered 4 - 20 mA input
10
11
12
+
-
ON
1 2
Fig. 5
+
5.4 Connecting to a 4 - 20 mA level transducer
The controller can be connected to a self-powered or loop powered 4 - 20 mA level transducer
instead of a capacitance probe.
Connect wiring as shown in the Figures 6 and 7.
Fig. 6 Self-powered 4 - 20 mA input
11
12
+
-
ON
1 2
5.3 Wiring diagram UL version
PA20 preamplifier and LP20 capacitance probe
(see PA20 and LP20 Installation and Maintenance Instructions)
Common
See CAUTION in Section 5.1.
Ensure resistance from probe body to
pipework / boiler shell is less than 1
W
.
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