HS-ULC External Ultrasonic Liquid Level Controller

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    External ultrasonic liquid level controller (referred to as "external liquid level switch") is a new type of liquid level measurement alarm device. It is mainly used to detect the liquid level of the tank, realize the upper and lower limit alarm or monitor whether there is liquid in the pipeline (dry state protection). The tank material can be all kinds of metal, non-metal or non foaming plastic, and the wall thickness can reach 70mm. This technology is not affected by medium density, dielectric constant, conductivity, reflection coefficient, pressure, temperature, precipitation and other factors, so the level controller is suitable for all kinds of liquid level engineering control in medicine, petroleum, chemical industry, power, food and other industries. This product is an ideal choice for the detection of toxic, strong corrosion and dangerous goods.

  • 外测液位开关工作原理

    The sensor of the liquid level controller couple the high frequency ultrasonic pulse to the container wall through the coupling agent. The pulse will propagate in the container wall and the liquid, and will be reflected by the inner surface of the container. Through the detection and calculation of the reflected signal characteristics, it can be determined whether the liquid level is at the installation position of the controller. The liquid level controller can output relay signal, which is convenient for the detection and control of liquid level.

  • 【Advantages】
    1. Wide Application: It can be used to measure all kinds of liquid medium in highly toxic, highly corrosive, high pressure, various complex working conditions and explosive gas environment.
    2. It can be installed without stopping production, tank cleaning and no fire, easy to install and operate.
    3. Reliable operation, stable performance and strong anti-interference ability.
    4.The instrument does not need to be maintained by the user and has a long service life.

    【 Application Conditions】
    1. Medium: Pure liquid, emulsion liquid, suspension liquid, etc.
    2. Vessels: The wall of the vessel where the ultrasonic probe is installed shall be made of hard materials which can transmit signals well. For example: carbon steel, stainless steel, various metals, FRP, epoxy resin, hard plastic, ceramics, glass, hard rubber and other materials or other conforming materials. The internal and external surfaces of the vessel walls shall be flat. If the vessel wall is multi-layer material, each layer shall be in close contact without bubbles or other interlayer. For example: Vulcanized hard rubber lining, epoxy resin lining, stainless steel lining, titanium lining, etc.

    【Technical Parameters】

    Item

    Standard   Explosion-proof Type

    Two Point   Monitoring Explosion-proof Type

    Intrinsically   Safe Type

    Two Point   Monitoring Intrinsically Safe Type

    Accuracy

     ±2mm

     ±2mm

     ±2mm

     ±2mm

    Measurable   Wall Thickness

    Max. 70mm

    Max. 70mm

    Max. 70mm

    Max. 70mm

    Output Signal

    Relay Output(1组单刀双掷,触点为无源节点)

    继电器输出(2组单刀双掷,触点为无源节点)



    Relay Capacity

    DC 30V 6A/AC   250V 6A

    DC 30V 6A/AC   250V 6A

    /

    /

    Power Supply

    DC 24V(AC 220V   Optional)

    DC 24V(AC 220V   Optional)

    DC 24V

    DC 24V

    Power

    1w

    1w

    1w

    1w

    Electrical Interface   Specifications

    Configuration   according to actual selection

    根据实际选型配置

    根据实际选型配置

    根据实际选型配置

    Diameter of   Threading Hole

    Φ8mm(Adapter cable   diameterΦ6~8mm)

    Φ8mm(适配电缆直径Φ6~8mm)

    Φ8mm(适配电缆直径Φ6~8mm)

    Φ8mm(适配电缆直径Φ6~9mm)

    Explosion-proof   Mark

    Ex d II CT6 Gb

    Ex d II CT6 Gb

    Ex ia II C T6   Ga

    Ex ia II C T6   Ga

    Shell Material

    Cast aluminum

    铸铝

    铸铝

    铸铝

    Protection   Level

    IP67

    IP67

    IP67

    IP67

    Applicable   Site

    Explosive gas   environment other than coal mine

    除煤矿外的其他爆炸性气体环境

    除煤矿外的其他爆炸性气体环境

    除煤矿外的其他爆炸性气体环境

    Applicable Ambient   Temperature of Main Engine

     -50℃~+60℃

     -50℃~+60℃

     -50℃~+60℃

     -50℃~+60℃

    Applicable Ambient   Humidity of Main Engine

     15%~100%RH

     15%~100%RH

     15%~100%RH

     15%~100%RH

    Working   Temperature of Ultrasonic Probe

    Common Type:-50℃~+80℃;High   temperature type:Up to 250℃

    Main Engine   Size

    186L*125W*171.5Hmm

    186L*125W*171.5Hmm

    236L*125W*171.5Hmm

    236L*125W*171.5Hmm

    Main Engine   Weight

    2.5kg

    2.5kg

    2.5kg

    2.5kg

    Intrinsically   Safe Parameter

    Ui:28VDC     Ii:93mA   Pi:0.65W   Ci:44nF     Li:11uH 

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