Conductivity Control System

CONSTRUCTION

  1. The conductivity control system is mainly consists of a electrolytic tank.

  2. The electrodes(sensor) are placed in the tank, which senses the conductivity.

  3. The electrodes are connected to transmitter through the cable wire.

  4. The transmitter is connected to the controller, which controls the control valve.

  5. The controller is connected to the control valve.

WORKING

If the level of the tank is increased above the set point value, that level will be sensed by the electrodes(sensor). Then the conductivity of the liquid is converted into electrical signal. That signal is processed to transmitter for the amplification purpose.

That amplified signal is further processed to the controller, where the present signal is measured and compared with the set point value. Then the control valve will be closed and the conductivity level is decreased through the outlet pipe, until the conductivity reaches near the set point value.


If the level of the tank is decreased below the set point value, that level will be sensed by the electrodes(sensor). Then the conductivity of the liquid is converted into electrical signal. That signal is processed to transmitter for the amplification purpose.

That amplified signal is further processed to the controller, where the present signal is measured and compared with the set point value. Then the control valve will be opened and more electrolyte solution will be filled in the tank so as to increased the conductivity of the liquid.

Author: Laxmi Omprakash Singh