CM37

Category: Capacitance Sensor Available
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Description



The induction surface of capacitance sensor is composed of two coaxial mental electctrodes, which from a capacitor and connected on RC oscillation circuit, just like an open capacitor electrode.

When connecting to power supply, RC oscillator does not work. When an object is clos eto capacitor electrode, the capacitor capacity will increase, and the oscillator will vibrate. Through the treatment of behind stage circuit, both signals of stop oscillation and oscillation will be converted to switch signs for checking the existence of object. this distance can be obtained, but to nonmetal object, the action distance is d etermined by material dielectric constant, the more dielectric constant, the more action distance will be obtained.





DETECTION DISTANCE 0-25mm


Flush

DC
6-36
VDC
 
AC
90-250
VAC

NPN

NO

CM37-3025NA

NC

CM37-3025NB

NO+
NC

CM37-3025NC

PNP

NO

CM37-3025PA

NC

CM37-3025PB

NO+
NC

CM37-3025PC

SCR
Control-
lable
silicon

NO

CM37-2025A

NC

CM37-2025B

Detectable object'

conductor and dielectric body

Consumption current

DC<15mA,AC<10mA

Controloutput

DC:200mA,AC:300mA

Output voltagc dropDC/AC

DC<3V,AC<7V

DC/AC Response frequency

DC:50Hz,AC:10Hz

Shell material

ABSPlastic

Working environment temperature

-25ºC~70ºC

Insulation resistance

50MΩ

Protection structure

IECstandard lp54







  1. Liquid level measurement-plastic or glass container
  2. Material level measurement
  3. Checking for broken board
  4. Count the bottles
  5. Detect the tightness of conveyor belt
  6. Counter and detect the material level

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