CM37 M37 Capacitive Proximity Sensors Electrical Appliance

◆Introduction

Detection of metallic and non-metallic objects

Sometimes you need to know what is hidden beneath a surface. Behind a wall, for example, inside a storage container, inside a shipping container, or behind a cover. Capacitive proximity sensors are ideal for level and feed monitoring. From solid material, such as paper or wood, to granules or liquids, they can be relied upon to detect what is happening in the production process and during final inspection. Is there something behind that cover? Is the finished package really full? How much paint is still left in the tank? For capacitive proximity sensors, these are easy questions to answer. SICKs capacitive proximity sensors are never far from the action. Sensing ranges between 1 and 25 mm allow them to be used in nearly all installation situations, making them extremely adaptable for a wide range of applications. These sensors are also remarkably resistant to interference. Impurities, contamination, dust, and airborne spray particles have little effect on them, nor does electromagnetic interference. No wonder they are installed in a wide range of industries, such as food and automotive, or in storage and conveyor systems.

◆Feature

• Metal, nonmetal solid and liquid sensing capability

• Shielded metal (875C) and unshielded plastic (875CP) models

• Adjustable sensing distance

• 2- or 3- wire operation

• PVC cable or quick disconnect versions

• 10...48V DC or 24...240V AC

• Normally open or normally closed output

• Short circuit, overload, reverse polarity, transient noise protection

◆Application

• Detection of solar wafers in the solar and electronics industry

• Detection of aluminum, cardboard, and paper in the packaging industry

• Detection of wood in wood processing machines

• Detection of rubber and plastic granulates in the plastics industry

• Detection of various liquids in the pharmaceuticals and chemicals industry

◆Benefit

• Even functions reliable in harsh industrial environments, which reduces machine maintenance costs and downtimes

• Quick and easy adjustment can be made via the potentiometer or teach button to save valuable time during commissioning

• Highly flexible range of applications thanks to compact housing and universal mounting systems

• High shock and vibration resistance and minimal sensitivity to dust and moisture ensure reliable object detection and reduce machine maintenance costs

• Optical adjustment indicator ensures reliable object detection to minimize potential machine failures

◆Technical Parameter

OVERALL DIMENSIONS
DETECTION DISTANCE
F l u s h	DC 6- 36 VDC   AC 90- 250 VAC	NPN	NO
			NC
			NO+NC
		PNP	NO
			NC
			NO+NC
		SCR Control- lable silicon	NO
			NC
DETECTION DISTANCE                           0-25mm
F l u s h	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				(NPN PNP) DC12V8mA，24V  DC<15mA、AC<10mA
Controloutput				200mA，300mA
Output voltagc dropDC/AC				（NPN PNP）DC<3V、AC<7V
DC/AC Response frequency				50Hz，10Hz
Shell material				ABS  Plastic
Working environment temperature				-25℃～70℃
Insulation resistance				50MΩ
Protection structure				IEC  IP54 IECstandard lp54
Altemative model at home and abroad