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

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
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