pH ORP Digital Controller with Sensor Check

pH ORP Digital Controller with Sensor Check

Product Details:


Product Description

In this field we are recognized amongst trusted manufacturers and suppliers of pH ORP Digital Controller with Sensor Check. To manufacture this device, we use superior quality materials and components.  The instrument has a full auto diagnostic procedure with automatic temperature compensation of pH. We check this device on defined quality parameters to provide the flawless range to clients. Clients can avail this pH ORP Digital Controller with Sensor Check from us in different specifications as per their requirements.


  • Real time status monitoring
  • Light in weight
  • Compact design

Further Details:

HI 504 is a PID, PI, proportional or on/off pH/ORP controller with one or two set points. The measurement configuration settings and control of pH and ORP are saved separately and permits users to switch between pH and ORP without losing settings. The pH channel can be calibrated in 2 calibration points. The instrument has a full auto diagnostic procedure. Sensor Check is also available for pH and ORP probes.

The temperature is continuously monitored using a temperature sensor (Pt100 or Pt1000 type) with automatic temperature compensation of pH. One or two analog controller outputs (0-20 or 4-20 mA) can be configured for pH/ORP recording or controlling (only for models with PID), and relays can be used to control the process or be connected with alarm status.

Product Details:

  • PID, PI, proportional or ON/OFF control of pH or ORP for one or two set points
  • Sensor Check for a real-time pH/ORP electrode status monitoring
  • Digital transmitter or direct connection of the probe
  • Matching PIN to eliminate the ground loop effect
  • Automatic temperature compensation for pH
  • Logging of up to 100 system events and up to 6000 readings (pH, ORP, T)
  • Control performed with up to 4 relays or analog output in 0-20 or 4-20 mA
  • Automatic probe cleaning from alarm or user request

 Technical Specification


0 to 50 Deg C (32 to 122 Deg F); RH max 85% Non-condensing

IP Rating

IP20 (housing); IP54 (front panel)



Over Current Protection

400 mA 250V quick blow fuse

Power Consumption

10 VA

Power Supply

24 VDC/AC, 115 VAC +/-10%, 230 VAC +/-10% or 100 VAC +/-10%; 50/60 Hz


1.6 kg (3.5 lb.)


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