Capacitive proximity sensors

Capacitive proximity sensors measure the change in capacitance which is caused by the approach of an object into the electrical field of a capacitor.

Capacitive sensors as oposed to inductive sensors do not only detect all conductive materials such as metals, but because of their operating principle also detect non-conductive materials such as ceramics, wood, plastics, glass, liquids etc.

We provide capacitive sensors with the following characteristics:

Housing material: plastic, plastic thread, metal thread
Type: Μ12, M18, Μ30, Μ34, rectangular, special design.
Sensing range: 8 ... 60 mm non flush mountable
Connection: Cable, plug & socket, terminals
Protection: IP65, IP67
Operating voltage: 10 ... 55 V DC, 20 ... 250 V AC, AC/DC
Electrical Design: NO, NC, NO/NC progr., PNP, NPN
Wiring: 2, 2 and 3, 3, 4 wires
Operating temperature: -25 ... +80°C
With special features: Namur, increased immunity, optical setting aid, for hygienic areas, dry bulk materials and liquid detection, detection through/flush in vessel wall, level switches, AS-i interface and many more

M12 series with cable for factory automation:

Our standard series for industrial use. Halogen-free PUR cable with high resistance to alternate bending stress, PUR housing material, gold-plated contacts and protection rating IP68 guarantee long life in an oily and greasy environment.

M12 series with cable for the food industry:
A series specified for this market sector. High-quality PVC cable and housing materials, coupling nuts of high-grade stainless steel (316S12) as well as gold-plated contacts are ideal prerequisites for use in wet areas. Due to the high protection rating IP68 and IP69K the products withstand high-pressure steam cleaning or the most commonly used cleaning agents.

M12 series with cable for welding

Specially for use in automated welding systems, i.e. for welding robots several product features must be reliably met. This includes a long life of resistance to weld slag the connectors are continuously exposed to.

The irradiated halogen-free PUR cables that prevent the weld slag from burning into the cable and damage it provide an especially efficient protection. Teflon coated coupling nuts prevent the connector from being welded with the sensor and a special polyester fleece strip foil in the cable ensures a long life even if there is high torsional stress, e.g. in robot arms.

These advantages are complemented by the UL and CSA approval for acceptance on the world market which specially convinces customers in the export business

We offer sensors with 3 types of connectors

  • potted cable
  • plug and socket
  • terminal