Laboratory pH & DO Controller

The controller system in combination with the 90 FL-MV TPS is used in order to monitor and control the DO and pH. The controller system can read and record the pulp chemistry data from TPS through RS232 during the experiments. Also, it can change the pulp chemistry by purging oxygen or air in the automatic mode by the solenoid valve to achieve the DO set point and by adding pH modifier by the peristaltic pump to reach the pH set point in a particular time interval.