Capacitance Level Sensors

    Fully insulated capacitance technology for reliable level and interface measurement in conductive liquids and challenging media with buildup

    ±0.5% AccuracyBuildup ImmuneInterface DetectionNo Calibration

    Liquicap FMI5x Product Family

    Advanced capacitance sensors with fully insulated probes for every application

    Liquicap FMI5x Series

    Fully Insulated Capacitance Technology

    Capacitance probes for continuous level and interface measurement in conductive and non-conductive liquids with active buildup compensation

    Liquicap FMI51

    Standard capacitance probe for continuous level measurement

    Accuracy: ±0.5% of range

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    Key Features
    • Fully insulated probe design
    • No calibration for water-based media
    • Active buildup compensation
    • Rod or cable probe options
    Technical Specifications
    Measuring Range:
    Up to 6 m (rod/cable)
    Temperature Range:
    -80°C to +200°C
    Pressure Rating:
    Up to 100 bar
    Dielectric Constant:
    εr ≥ 1.5

    Liquicap FMI52

    Advanced capacitance with extended diagnostics and interface capability

    Accuracy: ±0.5% of range

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    Key Features
    • Interface measurement capability
    • Heartbeat Technology verification
    • FDA-approved materials available
    • Advanced coating compensation
    Technical Specifications
    Measuring Range:
    Up to 10 m
    Temperature Range:
    -80°C to +200°C
    Process Connection:
    Thread or flange
    Communication:
    4-20 mA, HART

    Liquicap T FMI21

    Compact capacitance switch for point level detection

    Accuracy: ±5 mm switching point

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    Key Features
    • Partially insulated probe
    • Adjustable switching point
    • Compact design for small tanks
    • LED status indication
    Technical Specifications
    Probe Length:
    Up to 3 m
    Temperature:
    -40°C to +100°C
    Pressure:
    Up to 25 bar
    Output:
    PNP/NPN or relay

    Ideal Applications

    Capacitance technology excels in challenging media and interface detection

    Adhesive Liquids

    Reliable measurement in sticky media with active buildup compensation

    Interface Detection

    Continuous measurement of interface between conductive liquids

    Small Tanks

    Compact probe design ideal for vessels with limited space

    Conductive Liquids

    Direct measurement of water-based and conductive media

    Capacitance Technology Benefits

    Why Liquicap sensors deliver reliable measurement in difficult applications

    Fully insulated probe eliminates effects of buildup and condensation

    No calibration required for water and water-based media

    Active buildup compensation maintains accuracy with coating

    Suitable for both conductive and non-conductive liquids

    FDA-approved materials available for food and pharmaceutical applications

    Wide temperature range from -80°C to +200°C for diverse applications

    Master Challenging Level Applications

    Discover how Liquicap capacitance technology solves your toughest measurements