PHS-500-12

PH sensor with RS-485/Modbus and 4-20 mA interfaces

The PH sensor PHS-500-12 is used for precise and low-maintenance measurement of the PH value of (waste)water.

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The sensor can be used for continuous measurement of the PH value of waste water. It is suitable for agriculture, sewage treatment plants, chemical industry, printing and dyeing, paper making, pharmacy, electroplating and general environmental protection.

The sensor can be used universally via a 4-20 mA analog output and a digital RS485 interface with the industry standard Modbus RTU protocol.

Technical Data

  • Measuring range: PH 0-14
  • Resolution: 0.01 PH
  • Accuracy: ±0.05 PH
  • Maintenance interval: 6 months (3 months for very polluted water)
  • Interface: RS-485 / Modbus
  • Interface: 4-20 mA
  • Power supply: 7-30 V DC

Mechanical data

  • Protection class: IP68
  • Dimensions: 155 x 27.5 mm (L x D)
  • Operating conditions: 0 - 80℃ (max. 0.6MPa)
  • Storage conditions: 10 - 60℃ (20-90% RH)