IM-P402-93 AB Issue 7
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2.1 General
The LC2610 controller is a panel-mounted instrument for controlling the level of conductive liquids.
The minimum conductivity when used with the LP20/PA20 is 5 µS/cm or 5 ppm.
All options (apart from the voltage) are selected from a menu on the LCD display using the three
buttons on the controller front panel. The buttons are also used to select and set operating
parameters.
Direction arrows are displayed, indicating which button to press to select a particular option.
Note: For additional information see the LC2610 Technical Information Sheet.
2.2 Inputs
The LC2610 controller can accept a signal from a level probe or transmitter and can be configured
to operate with voltage or current devices.
Note: The probe must be long enough to sense over the complete level range.
The LC2610 incorporates automatic compensation for the 'wave motion' that can occur in steam
boilers. (The wave height is measured approximately every 2 minutes and an appropriate dead
band is included in the control loop to minimise valve movement).
In addition the LC2610 can accept signals from steam and water meters for two and three element
control applications (see Section 3).
2.3 Function
The LC2610 compares the signal it receives (from the level probe and steam / water meter) with
the set point selected by the user. It then changes its output signal to control the water level in the
boiler or tank.
2.4 Outputs
The LC2610's 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 a 4 - 20 mA
retransmission output.
LC2610
50% LEVEL
50% VALVE
Fig. 1
2. General product information