HS-2000 Intelligent External Ultrasonic Liquid Level Meter

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    The HS-2000 intelligent external ultrasonic liquid level meter (hereinafter referred to as “liquid level meter” or “meter”) can measure liquid levels outside a tank consistently and without the need for drilled holes. This allows for quick, simple installation that does not interrupt the tank’s operation or replacement for updated meters. The meter can also acquire accurate liquid level measurements for high-pressure hermetical tanks containing toxic, highly acidic or alkaline, and other various types of pure liquids. It is designed to be explosion proof, allowing the product to be used in a variety of additional applications with anti-explosion requirements. 

    Non-Contact Liquid Level Measurement
    The ultrasonic sensor (probe) is designed to be installed on an external surface of a tank wall without the need to drill holes on the measured tank.
    This function eliminates accuracy loss due to long term usage.
    Infrared Debugging During Operation   
    This function is especially suitable for conditions where it is dangerous to open the meter cover to debug, making the debugging process simple.
    The liquid level meter can self-test its own operating status and hardware conditions, ensuring reliability and stability.
    One-Key Recovery
    If the liquid level meter is not functioning properly, the user can press the one-key recovery button on the remote control to allow the liquid level meter to return to normal working condition.
    On-Site Display and Remote Transmitting
    The liquid level meter can not only display data on site, but also transmit data to a control room located away from the site via signal wire.

    Application Requirement
    1 Medium Purity Degree
    Liquids should not contain dense foam 

    There should be minimal suspended objects in the liquid, such as crystallized particles, etc.

    There should be minimal precipitation in the tank, such as mud, sand, etc.

    2、Tank Material:carbon steel, stainless steel, various hard metals, glass fiber-reinforced plastics, epikote, rigid plastics, ceramics, glass, ebonite, other composite materials. 

    3、Tank Shape:Spherical, horizontal and vertical tanks are permitted.

  • The HS-2000 external ultrasonic liquid level meter utilizes ultrasonic echo measuring principles and a high-speed signal processing chip. Its signal penetrates the wall of the tank and achieves non-contact and accurate measurement of liquid levels in tanks. In addition, the liquid level meter can output a 4~20mA standard signal or transmit measurement results to a computer (or secondary meter) via an RS-485 interface. 


  • Parameters

    Measuring range

    3m, 5m, 10m, 20m, 30m

    Display resolution


    Short time repetition


    Measurement error

    ±1‰FS (Excessive wall thickness and   temperature/pressure instability may affect measurement precision.)

    Span shift

    ±10 m

    Current output

    420mAMax   load 750Ω

    Communication interface

    RS-485,    IrDA

    Operating ambient temperature for liquid level meter


    Operating ambient temperature for ultrasonic probe


    (Probes with a wider temperature range can be provided upon request

    Operating ambient humidity


    Explosion proof mark

    Ex d ⅡC T6 Gb


    Housing ingress protection

    IP 67

    Volume percentage display

    4-digit OLED display

    Blind area

    There is a small blind area for the   liquid level meter that should be noted


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