OEM/ODM Supplier Cooling Tower Water Conductvity Controller - PH ORP Controller – JIRS

Character & Application: ■ Industrial online PH/ORP Monitoring and controlling instrument. ■ Three-point calibration function, automatic identification of calibration liquid and the error calibration. ■ High input impedance, the adaptation of various types of PH /ORP electrode. ■ The upper limit and low limit alarm relay control output functions, alarm return difference setup by keyboard, to form automatic closed-loop control system is more flexible and convenient. ■ Modbus RTU RS485 output.


PH/ORP-600 - Single channel PH or ORP Controller


0.00~14.00pH, ORP: -1200~+1200 mV


pH: ±0.1 pH, ORP: ±2mV

Temp. Comp.

0–100 ℃, manual / automatic

 ( PT1000, NTC 10k, RTD )

Operation Temp.

0~60℃(normal) , 0~100℃(optional)


The composite electrode (Sewage, Pure water)


4.00; 6.86; 9.18 Three Calibration


LCD display 

Control output signal

High and low limit alarm contact each group(3A/250 V AC)

Current output signal

Isolation, Reversible Transferable 4-20mA signal output,

max circle resistance 750Ω

Communication signal

Modbus RS485, baud rate: 2400, 4800, 9600 (Optional)

Power supply

AC 110/220V±10%, 50/60Hz

Working environment

Ambient Temp. 0~50℃, Relative Humidity ≤85%

Overall dimensions

48×96×100mm (H X W X D)

Hole dimensions

45×92mm (H X W)

Application: Widely used for water treatment, environmental protection, Industrial waste water, chemical process detection and control of PH value.