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    Ammonian (NH3) Gas Sensor, 0-100ppm

    $211.69
    The ammonian (NH3) gas sensor is a highly accurate detector for domestic and industrial use, detecting NH3 in the range of 0-100ppm. It utilizes electrochemical three-electrode technology, with a resolution of 1ppm, an error of ≤±3%, a repeatability of ≤±1%, a DC 5V power supply, a power consumption of ≤1W, and a fast response time of 90 seconds, as well as reliable Modbus-RTU communication. With 90 seconds fast response and reliable Modbus-RTU communication, it is an ideal choice for home/ industry gas detection.
    SKU: ATO-GS-NH3
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    The high quality NH3 gas sensor is designed for accurate detection in the 0-100ppm range. The gas sensor operates at 5V ± 0.5V DC and consumes as little as ≤1W, making it ideal for domestic and industrial gas detection. It operates efficiently over a wide temperature range of -20°C to 50°C and relative humidity of 15% to 95% without condensation. Utilizing natural diffusion and an electrochemical tri-electrode, it has a resolution of 1 ppm and an error of ≤±3%. Communication is via the UART interface at a baud rate of 9600 in accordance with the Modbus-RTU protocol and features a 0-2V analog output. The gas sensor is lightweight (10 grams) and requires only 30 seconds to warm up, ensuring reliable and efficient detection of ammonia.

    Module Features

    • NH3 gas sensor can be operated with electric hotplugging and unplugging.
    • Factory calibrated accurately, no need to re-calibrate for use.
    • Simultaneous digital (UART) and analog outputs for ease of use.
    • Standard MODBUS communication protocol.
    • Compatible with infrared, electrochemical, catalytic, semiconductor and other sensors.

    Specification

    Model ATO-K-5S-NH3-100
    Detecting Gas Ammonia (NH3)
    Detecting Range 0-100ppm
    Working Voltage DC 5V±0.5V
    Power Consumption ≤1W
    Working Temperature -20℃~50℃
    Humidity 15%~95%RH (no condensation)
    Working Pressure 86~106Kpa
    Adoption Method Natural diffusion
    Detection Unit ppm
    Resolution 1ppm
    Technical Principle Electrochemical three electrodes
    Tolerance ≤±3%
    Repeatability ≤±1%
    Response Time ≤90s
    Communication Format UART baud rate 9600, data bit: 8; stop bit: 1; check bit: none
    Communication Protocol Modbus-RTU communication protocol
    Analog Output 0~2V
    Warm-up Time 30s (user adjustable)
    Lifetime 2 years
    Weight 10g


    Structure

    NH3 gas sensor structure

    Note: Tolerance range ±0.25mm

    Working Principle

    Gas sensor module functional block diagram

    Application

    NH3 gas sensor application

    Tips: How to maintain the ammonia (NH3) gas sensor?

    1. Turn Off the Power: For safety, always turn off the power before starting maintenance.
    2. Periodic Calibration: Calibrate the sensor periodically to maintain accuracy. Follow the manufacturer's instructions for calibration procedures.
    3. Clean Environment: Keep the sensor free of dust and contaminants. Use a soft brush or compressed air to clean the sensor surface.
    4. Check Connections: Check electrical connections for any signs of wear or corrosion. Make sure all connections are secure.
    5. Avoid Moisture: Ensure that the sensor is not exposed to excessive moisture during maintenance to prevent damage.
    6. Replacement Parts: Use only genuine replacement parts recommended by the manufacturer to ensure compatibility and reliability.
    7. Documentation: Keep a log of maintenance activities, including calibration dates and any repairs performed.

    Following these steps will help ensure the longevity and accuracy of your NH3 gas sensor.

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