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

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 Name	Time	Type	Download
PT4000 pH/ORP Meter	Sep 26, 2025	PDF

Technical Parameters

Model	PT4000
Measuring Range	pH: 0-14pH ORP:－2000～＋2000mV Temperature: -10~150℃
Accuracy	pH: ±0.01pH/±0.02pH ORP: ±2mV/±5mV Temperature: ±0.3℃
Resolution	pH: 0.01pH ORP: 1mV Temperature: 0.1℃
Temperature Compensation Range	0～150℃
Temperature Compensation	Automatically or manually
Output	2-channels 0/4~20mA, 20~4mA
Communication	RS485 Modbus RTU
Relay Output	2 groups: 3A 250VAC, 3A 30VDC
Power Supply	85~265VAC; 9~36VDC
Installation Method	Embedded type or Wall mountd
Protection Class	Controller IP65

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