Controllers are ideal for industries that require accurate and precise pH or ORP control. The 1/2-DIN wall mount model is IP66 (NEMA 4X)-rated and suitable for wall, panel, or pipe mounting. Large backlit display provides easy reading of pH/mV and temperature measurements, even in low light conditions. Universal power supply input from 80 to 250 VAC/DC allows for use at multiple sites.

The pH 2000 controllers feature removable terminal strips for simple installation. The controller allows asymmetrical or symmetrical electrode inputs and operation. Symmetrical mode eliminates electrical noise problems when used with a potential matching pin as a solution ground.

Two programmable relay outputs for set points, delay, hysteresis, or control functions, and separate programmable alarm relay provide multiple options for control. Individually adjustable high and low set point dead bands prevent rapid contact switching if the value fluctuates near the set point. Programmable relay delay minimizes false alarms caused by minor fluctuations. Both models feature two galvanically isolated and scaleable 0 to 20/4 to 20 mA outputs for pH/ORP and temperature.