Capacitive sensors
Capacitive sensors

Reliably detect objects and fill levels

Capacitive sensors detect objects and the fill level of all non-conducting materials, liquids, pellets, and powders directly or through a container wall.

The patented Smart Level technology of the sensors compensates for moisture, foam and adhesion of all sorts – even through glass and plastic walls up to 10 mm thick. This makes the sensors ideal as fill level sensors for conductive media. And guarantee you high application security.

Our sensors are available in diverse designs, even especially small ones. As adhesive sensors, they fit flexibly to the housing shape and are easily removable.

The benefits

  • Contact-free and therefore wear-free
  • Shock-free output signal
  • Foam and deposit compensation thanks to Smart Level technology

Product families

  • Capacitive sensors for object detection

    Reliable results even over a long distance

    Our capacitive sensors detect objects even over a long distance. They are suitable for non-contacting detection of both solid bodies made of glass, wood, metal, plastic, or composite materials as well as liquids and bulk materials. This is achieved through plastic walls or through non-metallic packaging.

    In the process, our capacitive sensors are not be affected by color, dust, and reflective, glossy, or transparent surfaces.

    The capacitive sensors from Balluff are available in various configurations with a wide variety of plug and cable variants. With switching or analog output or with IO-Link interface. In addition, particularly economical versions are also available.

    Features

    • Capacitive sensors in plastic and stainless steel versions for detecting media with a low dielectric constant over a long distance
    • In compact configurations from Ø 6.5 mm and flat configurations, such as disc configurations, with switching distances of up to 25 mm
    • Flush mountable and adjustable via potentiometer or cable
    • IO-Link available
    Capacitive sensors for object detection
    Capacitive sensors for object detection

  • Capacitive level sensors without media contact

    Non-contacting detection of liquids or bulk materials

    You want to detect and monitor fill levels in containers, pipes, or tanks without contacting the media through non-metallic container walls? This is not a problem for our capacitive level sensors without media contact. These devices detect the fill level of liquids and bulk materials and deliver reliable results.

    They are suitable for a wide variety of applications, as they are available in a wide range of versions: In especially compact and flat cylindrical, cubic, or disc configurations as well as in pressure-rated versions and with a variety of plug and cable variants.

    Of particular interest to users: Equipped with our patented Smart Level technology, the capacitive sensors from Balluff compensate for moisture, foam, and adhesion of any kind – even through glass and plastic walls up to 10 mm thick. This makes the sensors ideal as fill level sensors for conductive media. And guarantees you high application reliability.

    Features

    • For fill level detection of liquids and bulk materials
    • Large selection of configurations and housing materials as well as cost-effective versions
    • Easy adjustment and setup, also via IO-Link
    • Patented Smart Level technology compensates for adhesion, moisture, and foam through glass and plastic walls up to 10 mm thick
    Capacitive level sensors without media contact
    Capacitive level sensors without media contact

  • Capacitive level sensors with media contact

    Designed for media-contacting detection of liquids or bulk materials

    You want to detect and monitor fill levels in containers, pipes, or tanks while in contact with the media? This is not a problem for our capacitive level sensors with media contact. These detect the fill level of granulate materials, powdery, viscous, or liquid media, as well as bulk materials. They are suitable for a wide variety of applications, as they are available in a wide range of versions. In cylindrical configurations and as immersion probes, for hole or flange mounting, and in pressure-rated versions as well as with a wide variety of plug and cable variants. In addition, their diverse range of housing materials, such as stainless steel, PTFE, and PEEK, ensure the best possible chemical resistance.

    Of particular interest to users: Equipped with our patented Smart Level technology, the capacitive sensors from Balluff compensate for moisture, foam, and adhesion of any kind. This ensures high application reliability.

    Features

    • For fill level detection of plastic granules, grains, feed and wood pellets, oils, aqueous liquids, acids, lyes, conductive powders, etc.
    • Large selection of configurations and housing materials as well as cost-effective versions
    • Easy adjustment and setup, also via IO-Link
    • Patented Smart Level technology to compensate for adhesion, foam, and moisture
    Capacitive level sensors with media contact
    Capacitive level sensors with media contact

  • Capacitive sensor heads for amplifiers

    Small, flexible, robust, and with separate processor unit

    Wherever a sensor with integrated electronics would not work optimally due to its environment, the capacitive sensor heads from Balluff offer you the precision to keep your system running. These are suitable for detecting liquid, paste-like, and powdery media – in direct contact or even through up to 4 mm thick container walls made of glass and plastic.

    Thanks to the compact design, our solutions work exceptionally well in tight spaces. Because the electronics are separated from the sensor head.

    Choose between versions in PTFE or stainless steel housings, for use in extreme temperatures or at the highest pressures. You also get the amplifier with either a switching or analog output or an IO-Link interface. Thus solving your individual requirements even more effectively.

    Features

    • Capacitive sensor heads made of PTFE material and in stainless steel housings for very extreme temperatures, the highest pressures, and tight spaces
    • Operation via a separate remote amplifier, optionally with switching signal – analog or with IO-Link
    • Quick, easy, and cost-effective installation
    • Especially environment-resistant and robust variants available
    Capacitive sensor heads for amplifiers
    Capacitive sensor heads for amplifiers

  • Amplifiers for capacitive sensor heads

    The right setup for every application

    Balluff remote amplifiers enable our capacitive sensor heads to be setup and evaluated easily. Compact evaluation units with switching signals, analog values, or IO-Link functionality for top-hat rail mounting are available for this purpose.

    Adjustable beyond critical environments, various setting options provide extended functionality for almost all capacitive sensor heads from Balluff.

    Features

    • For easy setup and evaluation of almost all capacitive sensor heads from Balluff
    • With comfort or IO-Link evaluation unit for top-hat rail mounting
    • Adjustment possible beyond critical environment conditions
    • Compact configurations and various functional modes
    Amplifiers for capacitive sensor heads
    Amplifiers for capacitive sensor heads

  • Capacitive sensors with special properties

    Pressure- and temperature-resistant even in demanding environments

    At Balluff, your requirements determine our range of products. Therefore, our portfolio also includes capacitive sensors specifically for high technical requirements, such as for pressure or high temperatures. As self-adhering variants, they adapt very easily to the surface they are to be attached too in a flexible manner. Housing materials such as stainless steel, plastic, or PTFE make them ideal for use in tough environments. In addition, they feature a wide range of operating voltages and are available in particularly small configurations.

    For use at extremely high temperatures or when space is limited, we even offer sensor heads with remote electronics. As a result, these can also be installed in hard-to-reach places and fine-tuned easily. Since their amplifiers are available with switching or analog output or with IO-Link interface, you can use the sensors across a wide range of applications. Depending on which output you choose, you can use it to detect a limit level, for example, or to set up continuous fill level detection.

    Features

    • Capacitive sensors with stainless steel, plastic, or PTFE housing
    • High temperature resistance of up to 250 °C and at 180 °C, pressure-rated of up to 6 bar as well as high pressure-rated for up to 150 bar
    • Sensor heads for use with separate amplifier, IO-Link capable
    • Self-adhering variants for easy and flexible attachment
    Capacitive sensors with special properties
    Capacitive sensors with special properties