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pH/ORP Transmitter and Controller with TFT color display


Item# PHCN-85

Please contact Technical Sales Team for assistance.
pH/ORP Transmitter and Controller with TFT color display PHCN-85 PHCN-85
  • The PHCN-85 is being replaced by the AM-2250 (controller) / AM-2250TX (transmitter)
  • 3.5', 320 × 240 TFT Color Display, Virtual Pointer or Digital Style, Multi-Parameter
  • Calibration with Automatic Buffer Recognition
  • Automatic or Manual Temperature Compensation

PHCN-85 Model Options

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Measurement Type
Supply Power
Output Type

The new PHCN-85 is the latest edition to the pH/ORP meters from OMEGA. This transmitter and controller offers a large TFT color display and 32-bit processor/ARM core operation system.

The PHCN-85 has two 4 to 20 mA outputs to control or retransmit the pH or ORP and temperature value. In addition, this powerful instrument has 3 relay outputs for pH, ORP, temperature or timing.

The PHCN-85 is also packed with standard features like RS485 communications, a calendar function and password protection. The power supply input even has automatic polarity detection.

Range: 0.00 to 14.00
Resolution: 0.01
Accuracy: ±0.1
Range: -1999 to +1999
Resolution: mV, 0.1mV
Accuracy: ±5 mV (display)
Range: 0 to 100°C (32 to 212°F)
Resolution: 0.1
Accuracy: ±0.5
Automatic Temperature Compensation: 0 to 50°C (32 to 122°F)
Temperature Input: 1000 Ω RTD
Current Outputs (2): Isolated, adjustable, reversible, 4 to 20 mA output, control or transmitter mode
Loop Resistance: 400 Ω maximum, DC 24V
Current Output: 4 to 20 mA
Resolution: ±0.1 mA
Relay Outputs (3): Contact photoelectric relay output, programmable; temperature, pH/ORP output can be set for pH/ORP/temperature or timing ON/OFF or PID control
Relay: Resistance load 50 mA maximum AC/DC 30V
Data Communication: RS485 Modbus protocol
Power Supply: DC 24V ±4V
Consumption: <5.5 W
Working Environment
Temperature: 0 to 50°C (32 to 122°F)
Relative Humidity: ≤85% RH (non-condensing)
Storage Temperature: -20 to 60°C (-4 to 140°F)
Relative Humidity: ≤85% RH (non-condensing)
Protection Level: NEMA 4 (IP65) with rear cover
Dimensions: 96 H × 96 W × 94 D mm (3.78 x 3.78 x 3.7")
Panel Cutout: 91 × 91 mm (3.58 x 3.58")
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Does anyone have the Modbus Register list PHCN-85. There is no information in the manual relating to the Modbus communication registers..

Asked by: NixieTubes
Thank you for your inquiry. Please e-mail and our Flow engineers will be able to assist you with this.
Answered by: AS Engineer
Date published: 2020-05-26
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