IM-P402-72 AB Issue 6
9
Links on
preamplifier provide
sensitivity selection
- see preamplifier IMI
A
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12
Select
voltage
internally
3 A max.
Mains
L
N
0 - 20 mA / 4 - 20 mA
Test output
0 - 20 mA / 4 - 20 mA
Output
PA20 /LP20
Capacitance
probe
+
-
IN 2
+
IN 2
Fuse
Brown
Red
Black
LC2300 controller
Screen
Screen
Fig. 4
5.2 Wiring diagram standard version
4- 20 mA Test:-
Connect ammeter between Terminals 5 and 6.
Do not disconnect loop.
This earth terminal is internally connected
to the PA20 body and earthed
by the LP20 probe.
Do not connect this earth terminal or
LC2300 terminal 20 to other earths.
Ensure resistance from probe body to
pipework / boiler shell is less than 1
W
.
Common
Common
Test
See CAUTION in Section 5.1.
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