pH Sensor and Meter

ph meter with temperature compensation is an instrument used to measure acidity or alkalinity of a solution – also know as pH. pH is the unit of measure that describes the degree of acidity or alkalinity. It is measured on a scale of 0 to 14. Ph Sensor and Meter as a critical tool in water quality monitoring, widely used in drinking water, wastewater treatment and in the fields including mining and smelting, papermaking, paper pulp, textiles, fisheries, petrochemical industry, process of semiconductor electronic industry, and downstream engineering of biotechnology.

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Pokcenser Automation Technology Co., Ltd

Mobile: +86 181 7515 5326

Email: info@pokcenser.com

Tel: +86-731-8229 9492

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PT4000 pH/ORP Meter

Features

  • LCD color display
  • Intelligent menu operation
  • 4-20mA/RS485 output
  • Two relay control switches
  • Manual and automatic temperature compensation
  • High & Low alarm and hysteresis control
PT4000 pH/ORP Meter

Applications

  • Power Plants
  • Petrochemicals
  • Metallurgy and Electronics
  • Mining
  • Papermaking
  • Biological Fermentation Engineering
  • Medicine
  • Food And Beverage
  • Environmental Water Treatment
  • Aquaculture
  • Modern Agricultural Planting
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Advantages

  • Multiple automatic calibration functions
  • Same interface display of pH/ORP, temperature, status, etc.
  • Password protection to prevent non-staff from misoperation

Industrial online PH/ORP meter is an online water analysis monitoring system. The instrument is equipped with different types of pH electrodes or ORP electrodes and is widely used in various industries. Water analysis instrument with probe kit is an ideal industrial water analysis system solution.

Resources

Datasheet

File NameTimeTypeDownload
PT4000 pH/ORP MeterSep 26, 2025PDF

Technical Parameters

ModelPT4000
Measuring RangepH: 0-14pH
ORP:－2000～＋2000mV
Temperature: -10~150℃
AccuracypH: ±0.01pH/±0.02pH
ORP: ±2mV/±5mV
Temperature: ±0.3℃
ResolutionpH: 0.01pH
ORP: 1mV
Temperature: 0.1℃
Temperature Compensation Range0～150℃
Temperature CompensationAutomatically or manually
Output2-channels 0/4~20mA, 20~4mA
CommunicationRS485 Modbus RTU
Relay Output2 groups: 3A 250VAC, 3A 30VDC
Power Supply85~265VAC; 9~36VDC
Installation MethodEmbedded type or Wall mountd
Protection ClassController IP65

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