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NHN-220 Ammonia Nitrogen Sensor

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NHN-220 is a basic digital ammonia nitrogen sensor for routine water quality monitoring. It uses an industrial online electrode and a PVC membrane ammonium ion-selective electrode to selectively test the content of ammonium ions in water, with fast response speed and accurate measurement. An internal temperature sensor allows automatic temperature compensation, making it suitable for long-term online environmental monitoring use.

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NHN-220 Ammonia Nitrogen Sensor

NHN-220 is a basic digital ammonia nitrogen sensor for routine water quality monitoring. It uses an industrial online electrode and a PVC membrane ammonium ion-selective electrode to selectively test the content of ammonium ions in water, with fast response speed and accurate measurement. An internal temperature sensor allows automatic temperature compensation, making it suitable for long-term online environmental monitoring use.

Category：

Digital Sensor

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  • 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

    ● The innovative ammonium ion membrane head is replaceable, and the cost of maintenance with a replacement membrane head is low.

    ● 3/4" NPT up and down installation thread design, convenient for installation.

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

    ● Optional: compensation for pH and potassium ions to reduce interference in testing.

    Note: Select pH and potassium ion compensation according to medium PH and ion interference.

     

    ■ Operating Specifications

    Name

    Parameters

    Output Signal

    Support RS-485, MODBUS/RTU protocol

    Measurement Method

    Film ion selective method

    Range

    0 ~ 10.0 mg/L or 0 ~ 100.0 mg/L (pH range 4 ~ 10)

    Accuracy

    ±5% F.S. or ±3 mg/L whichever is greater

    Resolution

    0.1 mg/L

    Working Conditions

    0 ~ 40 C°; <0.2 MPa;

    Calibration Mode

    Two-point calibration

    Response Time

    30 seconds T90

    Temperature Compensation

    Automatic temperature compensation (Pt100)

    Power Supply

    12 or 24 VDC ±10%, 10 mA;

    Protection Grade

    IP68; Water depth of 20 meters;

    Service Life

    Sensor for more than one year; Membrane head for six months

    Cable Length

    Default length of 5 meters, customizable

    Sensor Housing Material

    POM; Customizable

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Shanghai ChiMay Tech ltd.

Address: 
Block 8, No 8188, DaYe Road, Fengxian District, Shanghai, 201409, China
Telephone: 
+86 13817226169

WhatsApp:

+86 13817226169
Email: 

chimay@chimaycorp.com

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