PH controller (APR2)

The automatic pH controller is suitable for the automatic regulation of the degree of acidity (pH value) in a continuous flow or in a tank. The controller adds depending on the pH value more or less diluted or concentrated acid or base. The controller has the following characteristics:
simple operation with the aid of four pushbuttons and read-out on digital display,
the controller can be fitted with one or two pH electrodes (probes)
when using two pH electrodes the average value of both is used for the control. The second electrode serves at the same time to check the first,
equipped as standard to actuate, if desired a motorized valve (modulated), a flow, electrically or pulse controlled pump
via an external signal a second set of control settings (incl. 2nd set point) can be activated if temporarily an other control characteristic is desired
alarm or fault in the controller or pH electrode can be processed via a de-energized contact externally
provided with 2 BNC-connectors for direct connection of the pH electrode.