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CM18-3005NA IP54 5mm Adjustable M18 Capacitance Proximity Switch for Level Detection

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.

  • CM18-3005NA
  • YUMO

Capacitance proximity switch

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.


Technical Specifications

CM18 Capacitive proximity switch

Overall dimensions CM18
Detection distance

0-5mm

Flush

 6~36

VDC

 

 

90~250

VAC

 

NPN

NO

CM18-3005NA

NC

CM18-3005NB

NO+NC

CM18-3005NC

PNP

NO

CM18-3005PA

NC

CM18-3005PB

NO+NC

CM18-3005PC

SCR

NO

CM18-3005A

NC

CM18-3005B

Detection distance

0-8mm 

Non-flush

 6~36

VDC

 

90~250

VAC

 

NPN

NO

CM18-3008NA

NC

CM18-3008NB

NO+NC

CM18-3008NC

PNP

NO

CM18-3008PA

NC

CM18-3008PB

NO+NC

CM18-3008PC

SCR

NO

CM18-2008A

NC

CM18-2008B

Detected object

Conductor and dielectric body

Consumption current

DC<15mA, AC<10mA

Output current

DC:200mA AC:300mA

Output voltagc drop DC/AC

DC<3V AC<7V

DC/AC Response Frequency

DC:50Hz ; AC: 10HZ

Working environment temperature

-25℃ ~+70℃

Insulation resistance

50MΩ

Shell material

ABS Resin , Metal


 

 


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