Boiler house
Level controls
2.3.55
LC2650
100
50
%
0
SP
PV
AL
OK
Clamping
screw
Graphic
display
5 button
display
Clamping
screw
Applications
The product can be configured to control the level of a boiler, tank or vessel, by operating a pump, valve or solenoid. Typical applications:
On / off control:
-
Pump control.
-
Two alarm outputs.
-
4 - 20 mA level output (isolated).
Note: A solenoid valve may be used instead of a pump.
Modulating control:
Modulating valve control using valve motor drive or 4 - 20 mA control signals.
-
Two alarm outputs.
-
4 - 20 mA level output (isolated).
Two or three element modulating control:
Modulating valve control using a valve motor drive or 4 - 20 mA control signal.
-
Two alarm outputs.
-
4 - 20 mA level output (isolated).
-
Feedback from steam flowmeter.
-
Feed forward from water flowmeter.
Inputs / Function
The product compares the input signals with the set point selected by the user. It then changes its output signal to control the water
level in the boiler or tank.
Outputs
The product control signal can be configured / wired to work with a pump or a modulating control valve. It also provides relay outputs
for high and low level alarms and can provide an isolated
0 - 20 mA or 4 - 20 mA retransmission output.
Parameters can be remotely accessed via the RS485 / MODBUS communications.
Other features
An additional filter can be selected to increase the damping effect for turbulent conditions.
Page 2 of 6
TI-P402-134 EMM Issue 6
LC2650 Level controller
