How does an online pH controller control the metering dosing pump via 4-20mA?
Delfino online pH controller has two 4-20mA current outputs. It can not only realize the output of pH values, but also control the metering pump to realize the dosing of acid or base. This video shows how to connect the controller with the dosing pump, how to set the current on the pH controller. If you are interested in the online pH controller, do not hesitate to contact: info@delfino.hk