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    Picture of Frequency Difference Capacitive Liquid Level Switch Picture of Frequency Difference Capacitive Liquid Level Switch Picture of Frequency Difference Capacitive Liquid Level Switch

    Frequency Difference Capacitive Liquid Level Switch

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    SKU: SUCH-CLS-300PC
    $207.65
    ● Capacitive liquid level switch for industrial tanks ● Frequency-difference sensing for stable level detection ● IP67 316L stainless steel design for harsh environments ● G1/2 threaded connection with fast ≤100ms response
    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    This capacitive level switch is an industrial liquid level sensor for reliable point-level monitoring in tanks and process systems. It uses frequency-difference technology with 316L stainless steel wetted parts, PEEK insulation, IP67 protection, and fast ≤100ms response for stable operation. Suitable for petroleum, chemical, metallurgical, water treatment, and industrial automation applications.

    Feature

    • High Measurement Precision and Stability: The capacitive level switch delivers accurate, drift-free liquid level detection without mechanical components, ensuring dependable long-term performance in demanding operating environments.
    • Industrial-Grade Construction: Engineered with PEEK insulation, 316L wetted metal parts, and a 304 stainless steel housing, it offers exceptional corrosion resistance and robust durability for harsh industrial applications.
    • Advanced Intelligent Calibration: Integrated auto-calibration technology optimizes internal parameters in real time, minimizing manual configuration and enhancing commissioning efficiency.
    • Rapid Response: A fast reaction time (≤100 ms) combined with strong vibration tolerance (10G, 0–500 Hz) enables reliable performance in rapidly changing liquid level conditions.
    • Electrical Protections: Built-in reverse polarity, overload, and short-circuit safeguards ensure stable and secure operation within complex control systems.
    • Flexible Installation and System Integration: The capacitive liquid level sensor supports a G1/2" process interface, M12*1 electrical connector, and an 18-30 VDC supply range, enabling simple setup and broad compatibility with industrial equipment.
    • IP67 Environmental Protection: It maintains reliable operation against water immersion and dust ingress, making it suitable for rugged field environments.
    • Continuous Status Feedback: Designed for real-time liquid level measurement, the water level switch provides immediate output signals to enhance process visibility and control accuracy.

    Dimension (Unit: mm)

    Capacitive liquid level switch dimension

    Connection

    Capacitive liquid level switch connection

    Specs
    Process Connection G1/2" Male Thread
    Wetted Material PEEK, 316L Stainless Steel
    Housing Material 304 Stainless Steel
    Weight 300g
    Connection Type M12*1 Connector
    Supply Voltage 18 VDC to 30 VDC
    Wiring Protection Reverse Polarity, Overload, and Short-circuit Protection
    Protection Grade IP67
    Current Consumption ≤35 MA
    Response Time ≤100 MS
    Vibration Resistance 10G / 0~500Hz
    Shock Resistance 50G / 1 MS
    Vibration Frequency 300 ± 50Hz
    Process Pressure -1 to 40 BAR

     

    Application
    Capacitance type level switch for petroleum industry

    Petroleum Industry

    Capacitance type level switch for chemical industry

    Chemical Industry

    Capacitance type level switch for metallurgical industry

    Metallurgical Industry

    FAQ
    ❯

    Yes, this is one of the advantages of capacitive sensors. They can detect plastic granules, grain powder, feed, flour, cement powder, etc. Powder silos typically use side-mounted switch-type or top-mounted continuous capacitive probes. Note that dust accumulation can cause long-term capacitance shift; therefore, anti-adhesion probes should be selected or cleaned regularly.

    ❯

    The delay is very small, typically only a few hundred milliseconds. It is a fast-response sensor suitable for dynamic level monitoring, such as pump control and valve regulation. A buffering effect may occur when there is a large drop in powder volume in a soft silo; this is not a sensor delay but rather caused by the flow characteristics of the medium.

    ❯

    Temperature variations will cause a shift in the dielectric constant, but modern sensors typically have temperature compensation functions, so they will not cause significant errors. If the ambient temperature difference exceeds 50°C, it is recommended to choose a wide-temperature-range probe. If high temperatures cause the probe rod to expand, high-temperature resistant materials must be used.

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