Online pH/ORP Meter

pHI01 Online pH/ORP Meter

CeYeKo pHI01 ph Metre - pH Meter-2

pHI01 Online pH/ORP Meter

pHI01, pH meter is a true multivariable analyzer used for measuring/controlling the pH with temperature and ORP (The function is switchable on the device itself). Depending on the measured variable, combination electrodes (e. g. pH sensors) or split versions (glass electrodes with a separate reference electrode) can be readily connected.

Truly unique is the pH meter in the Human Machine Interface. The high resolution digital display and LCD screen make the measurements are clearly legible and the keyboard operation make it easier for the user to configure the device. The instructions on screen assure that the best configuration for the application is obtained.

Universal application in water and waste water engineering, service/process water and drinking water and well/surface water, leakage monitoring in refrigeration plant.



  • Measure Range: pH(0-14);ORP(-1000~+1000mV)
  • Resolution: pH: 0.01 ORP: 1mV
  • Stability: pH:≤0.02pH/24H; ORP: ≤3mV/24H
  • Accuracy: pH: ±0.02pH; ORP:±1mV
  • Input Impedance: ≥10^12
  • Temperature Compensation: NTC 10K or

         PT1000 -10-130°C

  • Power Supply: AC220V±10%, 50Hz or DC 24V

Output Signal:

  • Communication:RS485, MODBUS-RTU
  • Transmission Signals: 4-20 mA
  • Process Alarm:High/Low process alarms, selected from pH, ORP+
  • Relay Output: AC250V, 3A


  • Panel Front Size (mm) : 96(W) x 96(H) x Approx.112 (D)
  • Panel Cutout Size (mm): 92(W) x 92(H) x Approx.112 (D)
  • Converter Weight : Approx. 1 kg
  • Display: LCD with back lights in English
  • Calibration: Semi-automatic 3 points calibration using pre-configured buffer tables 4, 7 & 10, or 4, 6.18 & 9.18
  • Color: Black
  • Ambient Temperature : -20 to +55ºC (-5 – 130 ºF).
  • Storage Temperature : -30 to +70ºC (-20 – 160 ºF).
  • Humidity : 10 to 90% RH at 40ºC (100 ºF)




  • Easy operation
  • NEMA enclosure for field mounting and panel mounting
  • Automatically Temperature Compensation
  • Directly switchable to PH or ORP
  • Large LCD display with background lighting
  • pH or ORP sensors can be connected thanks to the sensor supply integrated in the output
  • Using the setup program: user-friendly programming
  • 4-20mA analog output
  • RS485 communication
  • Relay output


  • Sewage Treatment,
  • Acid Alkali Waste Tower,
  • Food Processing,
  • Aquaculture, etc…