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The 112pH is an online dual-limit pH controller by Countronics. Large 0.8″ red LED display, two independent relay outputs, auto temperature compensation via PT100, and isolated 4-20mA output for SCADA/PLC integration.
Two independently settable set points, each with its own relay. Set Limit 1 activates acid dosing when pH rises too high; Set Limit 2 activates alkali dosing when pH falls too low — enabling fully automatic two-stage pH control.
Yes. Both relay outputs can directly control dosing pump contactors or solenoid valves. Each relay has an independently settable set point and hysteresis for precise automatic pH control.
STP, ETP, water treatment, swimming pools, pharmaceutical manufacturing, food processing, and chemical plants — any process where pH must be automatically maintained within a set range using dosing pumps or valves.
121pH is display-only — no relay or control. 112pH is a full dual-relay controller with 4-20mA output. Choose 121pH for monitoring only; 112pH when automatic dosing control is needed.
Yes. The isolated 4-20mA output transmits pH proportionally to PLCs, SCADA, chart recorders, or data loggers — enabling remote monitoring alongside local display and relay control.
Manufactured by Countronics, ISO 9001:2015 certified, established 1978, Ghaziabad, India. Contact: +91-9810536887, countronindia@gmail.com.
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| Weight | 700 lbs |
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