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B40 Flush Square Type Capacitive Proximity Sensor

Capacitive proximity sensor

B40 Flush Square Type Capacitive Proximity Sensor

  • ●Capacitive sensors in stainless steel, plastic or PTFE housings:
  • ●Wide range of configurations, enclosure materials and inexpensive specifications available Simple matching and set-up:
  • ●Self-adhesive model, easy and flexible fixing:
  • ●For detecting the filling level of materials such as plastic pellets, grains, feed/wood pellets, oils, aqueous liquids, acids, alkalis, conductive dusts, etc.:
  • Product Detail

KJT Capacitive Proximity Sensors

 Capacitive proximity sensors can be used to detect any object without contact. Capacitive proximity switches can detect metallic as well as non-metallic objects, regardless of the colour and surface condition of the object to be detected, whether transparent or not, can be reliably detected, the sensitivity can be adjusted knob, the closed non-metallic containers can be indirectly detected for liquids, powders and other materials. Almost all materials can be identified.

       Principle of operation

Capacitive proximity switch also belongs to a kind of position sensor with switching output, first of all need to measure the capacitance between the sensor sensing surface electrode and the circuit potential electrode, a close object affects the electric field between the two poles of this capacitor. This principle applies not only to metallic but also to non-metallic objects. Capacitive sensors generally operate via an RC oscillator, where even a small change in capacitance affects the amplitude. An integrated circuit then converts the amplitude into a switching signal, the sensitivity of which can be adjusted by means of a potentiometer.

Technical parameter

Size

118*40*40

Mounting

Flush

Sensing Distance SN [mm]

15mm

Operating voltage

10-30VDC

Output

PNP/NPN NO/NC

On-off level 100Hz
Switch point offset ≤±10%
Return range 3...20%
Repeat accuracy ≤3%
Load current ≤200MA
Residual voltage ≤2.5V
Current consumption ≤15MA
protection circuit Surge overload short circuit, reverse polarity protection
Output instructions Yellow LED
ambient temperature -25-60℃
environment humidity 35-95%
Protection level IP67
Shell material PBT
Wiring 2M PVC cable


参数

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Liquids, powders, non-metals, and metals can all be detected. The sensing distance and sensitivity can be adjusted, and the detection of liquids is not affected by bubbles and liquid color. The detection distance is greatly affected by the size, thickness and conductivity of the object being detected. The larger and thicker the object being detected, the better its electrical conductivity. The greater the product detection distance, the smaller the detection distance.


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