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M18 High Temperature Flush Capacitive Proximity Sensor

Capacitive proximity sensor

M18 High Temperature Flush 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 detect any object without contact. Capacitive proximity switches can detect metallic and 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 of liquids, powders and other materials can be indirectly detected. Almost all materials can be recognised.

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.

参数

Technical parameter

Size

M18*55mm

Mounting

Flush

Sensing Distance SN [mm]

5mm

Housing material

PTFE

Operating voltage

10-36VDC

Ripple

<10%

No Load Current

<10mA

Max.Load Current

200mA

Leakage Current

<0.01mA

Voltage Drop

<2V DC

Switching Frequency

100Hz

Response Time

1.5ms

Switching Hysteresis

<±15%(Sr)

Repeat Accuracy

<±5%(Sr)

Protection Degree

IP67

Temperature range

-25℃-120℃ 

Temperature Drift

<10%(Sr)

Short Circuit Protection

Yes

Overload Trip Point

120mA



外观尺寸

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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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