IM-P402-84 AB Issue 6
7
Note
on 4-20 mA loops:
Steam and water meter inputs (terminals
3 and 10) are earthed via the level probe.
Ensure any equipment connected to the
loop will operate with these terminals
grounded (earthed).
LC2400
Water
meter
Steam meter
Level controller LC2000
Live
Neutral
Range
link
Test
Neutral
Capacitance
probe
IN1
IN2
IN1
2
3
4
5
6
7
8
9
1
10
11
12
2
3
1
4-20 mA
current
loop
+
-
1
2
3
4
5
6
7
8
9
10
11
12
4
5
6
+
1
3
LC2300 Level
controller
LC2400
Steam meter
Level
probe
Steam
Fig. 4 Three element level control
with pneumatic valve
Feedwater
LC2300 flow controller
Pneumatic
valve
For range link
see commissioning
instructions
Live
Neutral
Test
4-20mA
0-20mA
output
-
+
Live
IN2
+
+
4-20mA
0-20mA
input
-
8
10
9
11
12
7
+
+
-
-
4-20 mA
current
input
4-20 mA
current
input
Electropneumatic
positioner on valve
Water meter
LC2300 used as
a flow controller
Test
Live
Neutral
Controller
LC2300
2
Set point output
0-20 mA
4-20 mA
input