Simar manufactures online ph systems. It is used for controlling ph levels to ensure that the environmental effects of effluents are minimized. This also helps optimize productivity and quality. Many regulatory bodies demand that ph levels be controlled and recorded. Proper control of ph involves more than just a controller. Many other devices are incorporated in the system to ensure that the ph is measured correctly, long term record maintained, and that chemical is added and mixed. The system includes an industrial online self cleaning ph electrode having unique double junction electrodes with atc element. The flat surface does not collect suspended solids fluid flow across the electrode and provides a cleaning action that extends electrode life and improves performance. The electrode assembly is available for pipeline or submerged applications. The ph transmitter accommodates virtually all ph or orp 2-wire applications+f1491, for ph range from 0.00 to 114.00 and -700 to +700 mv for orp. The transmitter accepts output of one ph electrode and gives output to feed controller or recorder. Digital controllers accept output from ph transmitter and gives output to solenoid valves/pumps to neutralize ph level.