DPH-220 PH Digital Sensor

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DPH-220 is a basic digital pH sensor for routine water quality monitoring, using industrial online electrodes that are replaceable. The electrode design features a spherical structure, increasing measurement contact area compared to flat structures and providing faster response times and more accurate measurements. It also includes an internal temperature sensor for automatic temperature compensation, making it suitable for long-term online environmental monitoring use.

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DPH-220 PH Digital Sensor

DPH-220 is a basic digital pH sensor for routine water quality monitoring, using industrial online electrodes that are replaceable. The electrode design features a spherical structure, increasing measurement contact area compared to flat structures and providing faster response times and more accurate measurements. It also includes an internal temperature sensor for automatic temperature compensation, making it suitable for long-term online environmental monitoring use.

Category:

Digital Sensor

  • Product Description

    ■ Features

    ● Digital sensors, directly outputting RS-485 digital signals and supporting MODBUS/RTU.

    ● Built-in temperature sensor, can automatically compensate for temperature changes

    ● Double salt bridge, double high impedance design, strong anti-interference and stable data.

    ● The upper and lower installation threads of "NPT" are designed for easy installation.

    ● Low power consumption of sensors, and internal circuit design to resist interference

    ● The electrode is replaceable, supports complex water application and supports customized

     

    ■ Operating Specifications

    Name

    Parameters

    Output Signal

    Support RS-485, MODBUS/RTU protocol

    Measurement Method

    Ion-selective method

    Range

    0 ~ 14 pH

    Accuracy

    ±0.1 pH

    Resolution

    0.01 pH

    Working Conditions

    Default 0 ~ 65°C; <0.2 MPa; other customization available

    Calibration Mode

    Two-point calibration

    Response Time

    10 seconds T90

    Temperature Compensation

    Automatic temperature compensation (NTC)

    Power Supply

    12 or 24 VDC +/- 10%, 10 mA;

    Dimensions

    Diameter 30 mm; Length 189 mm;

    Protection Grade

    IP68; Water depth up to 20 meters; other customizations available

    Lifespan

    Sensor lasts for more than one year

    Cable Length

    5 m (default), customizable

    Sensor Housing Material

    PVC; customizable

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