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Capacitive sensors detect both metal and non-metal objects, can sense through insulating materials, and are often used to detect fill levels of liquids, pellets, and powders through container walls. They are available in round (tubular) or rectangular shapes, with sensing distances up to 40mm.
Capacitive Proximity Sensors
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Capacitive proximity sensors are non-contact sensors that generate an electrostatic field to detect metal and non-metal objects. Using two conduction plates, they sense the change in capacitance when an object moves within their sensing range. They can even sense through insulating materials, such as wood or plastic, and offer an ideal solution for non-invasive detection of liquid, pellet, and powder levels as they can be mounted externally and sense through storage container walls. Flush-mounted sensors are embeddable, while non-flush sensors allow longer sensing distances, are non-embeddable, and their sensing face must protrude from the mounting substrate.
- Sensing distances range from 1.5 to 15 mm (flush mount) and 2 to 40 mm (non-flush (extended sensing face))
- Normally open or normally closed, NPN and PNP logic outputs available
- LED status indicators verify operation at the sensor
For part listings and specifications, go to Shop Now
8mm Round
8mm round stainless-steel housed capacitive proximity sensors offer sensing distances up to 3mm (depending on mounting style) and easy potentiometer adjustment.
- 1.5mm (flush) and 3mm (non-flush) sensing distances
- N.O. or N.C. output options
- PNP and NPN models
- 100 Hz switching frequency
- 11 to 30 VDC operating voltage
- 2m axial cable or M8 quick disconnect
- IP65 protection rating
12mm Round
12mm round stainless-steel housed capacitive proximity sensors offer sensing distances up to 12mm (depending on mounting style), with easy potentiometer adjustment.
- 6mm (flush) and 12mm (non-flush) sensing distances
- N.O. PNP output
- 50 Hz switching frequency
- 10 to 36 VDC operating voltage
- M12 quick-disconnect connection (purchase cable separately)
- IP65 protection rating
18mm Round
18mm round plastic-housed capacitive proximity sensors, many with IP69K rating, offer sensing distances up to 15mm (depending on mounting style), with potentiometer or pushbutton adjustment.
- 8mm (flush), 12mm (non-flush), and 15mm (non-flush) sensing distances
- N.O., N.C., and N.O./N.C. selectable output models available
- NPN or PNP options
- 10 or 30 Hz switching frequency
- 10 to 36 VDC or 10 to 30 VDC operating voltage
- M12 quick-disconnect, purchase cable separately
- IP65/67/69K ratings available
30mm Round
30mm round capacitive proximity sensors, with metal or plastic housings, offer sensing distances up to 40mm (depending on mounting style), with potentiometer or pushbutton adjustment and protection ratings up to IP69K.
- 15mm (flush), 20mm (non-flush), and 40mm (non-flush) sensing distances
- N.O., N.C., and N.O./N.C. selectable output models available
- 10 or 100 Hz switching frequency
- DC models operate with 10 to 36 VDC or 10 to 30 VDC
- AC/DC model operates with 20 to 250 VDC/30 to 250 VAC
- 2m axial cable, M12 quick-disconnect, or 1/2in Micro AC quick-disconnect (AC/DC model only), purchase cable separately
- IP65/67/69K protection ratings available
Small Rectangular
Small rectangular capacitive proximity sensors have a low-profile (20 x 14 x 48mm) plastic housing, ideal for sight glass applications, and offer a sensing distance of 12mm with pushbutton teach for easy setup.
- 12mm sensing distance
- N.O./N.C. selectable output
- 10 Hz switching frequency
- 10 to 36 VDC operating voltage
- 2m axial cable
- IP65/67 protection rating
Capacitive Proximity Accessories
A variety of mounting brackets and adapters are available for affixing capacitive proximity sensors including axial, right-angle, and swivel-mount brackets with plastic, plated-steel, or stainless-steel constructions. Spare hex nuts are also available.
Sensor Tester
Sensor testers save time by determining if a sensor is functional before installation. This unit is lightweight and compact so it can be stored in a desk drawer and carried in a pocket. It includes a rechargeable battery and micro-USB charging cable.
- Fast field check of various DC sensor types
- LED and acoustic indicator
- 24 VDC sensor supply voltage
- Current supply to 100 mA
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