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Kapazitiver Sensor in Gewinderohr Bauform mit Teach Funktion | Capacitive Sensors with Teaching Function
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Alexander Burgherr
Product manager

Capacitive Sensors

Capacitive sensors reliably detect conductive and non-conductive materials – from liquids and bulk goods to solid objects. They operate contactlessly and wear-free, making them ideal for demanding industrial environments. With modern IO-Link technology and an integrated teach function, they can now be parameterised more easily and integrated seamlessly into existing control systems.

Discover capacitive sensors

What is a capacitive sensor?

Capacitive sensors work on the physical principle of a capacitor. They react to changes in the electric field caused by the approach of an object or medium. This enables them to detect both conductive and non-conductive materials – even through glass or plastic.

Typical applications include level detection, object recognition and limit level monitoring in tanks and systems. In industrial automation, capacitive sensors ensure process reliability and efficient material flows.

New generation of digital sensors with teach function and IO-Link

More intelligence. More flexibility. More efficiency. The new capacitive sensors with dynamic teach function and IO-Link technology offer reliable and precise detection – even in demanding applications. Data communication and parameterisation are carried out directly via IO-Link or the free TAS software, simplifying condition monitoring and maintenance.

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Kapazitiver Sensor in Gewinderohr Bauform mit Teach Funktion

Advantages of the digital sensors

Precise adjustment of the target medium via dynamic teach function

Adjustable switching points for different media

Direct integration into IO-Link networks

Simple configuration via Turck TAS software

Process and diagnostic data for condition monitoring

High repeatability and stability

Classic and analogue sensors – proven and robust

Our capacitive sensors are available in various form factors – matched to installation situation, environment and application. ATEX zones can also be served.

Kapazitiver Sensor in Gewinderohr Bauform

Capacitive sensors in threaded barrel design

Compact and robust for universal use – ideal for level detection and object recognition in systems. Versatile portfolio for specific applications:

  • Compact and robust for universal use – ideal for level and object detection in systems. Available in M8, M12, M18 and M30.
  • Teach and/or potentiometer adjustment
  • IO-Link versions available
  • Sensors for critical, adhesive media
  • Limit level sensors with EHEDG approval for hygienic use with food or pharmaceutical products
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Capacitive sensors in smooth barrel design

For applications with higher cleanliness requirements. Smooth plastic housing, IP67 protection and easy to clean.

  • Reduced adhesives thanks to smooth housing
  • Ideally suited for powder applications
  • Switching point adjustable via potentiometer
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Kapazitiver Sensor in Quader-Bauform

Capacitive sensors in rectangular design

Ideal for flat mounting surfaces and tight installation spaces – e.g. on conveyors, on tanks or mounted directly on a pipe. Flexible fastening and reliable detection.

  • Compact design, easy installation
  • High repeat accuracy
  • Switching point adjustable via potentiometer
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Key functions at a glance

Teach function

For simple sensitivity adjustment for different media.

IO-Link communication

Transfers process and diagnostic data directly to the control system.

High protection classes IP67/IP69K

For reliable operation even under harsh conditions.

Flush or non-flush mounting

Flexibly adaptable to different installation requirements.

Material variants: plastic, stainless steel, PTFE

Resistant to chemicals and cleaning agents.

Application areas

  • Level detection in tanks and containers
  • Detection of bulk materials and powders
  • Position detection on conveyor systems
  • Use in the food, chemical and plastics industries – discover our range.

Frequently asked questions about capacitive sensors

What is the difference between capacitive and inductive sensors?

Inductive sensors detect only metals. Capacitive sensors additionally detect non-metallic materials, liquids and bulk materials – even through glass or plastic.

Yes, with glass or plastic containers – depending on wall thickness and medium.

Flush sensors are installed on the same level with the mounting surface and therefore have a shorter sensing distance. Non-flush sensors require a free zone around the sensing face but offer longer sensing distances.

The teach function allows the sensitivity to be adapted to a specific medium – manually on the sensor or via TAS software.

They can also be operated as standard switching sensors if no IO-Link master is available.