Cjm18m

Basic Info.

Model NO.	CJM18M-8N2
Certification	CCC
Transport Package	Canton Box
Specification	diameter 18mm
Trademark	C-lin
Origin	China
HS Code	8536500000
Production Capacity	50000/ Year

Product Description

CJM18M-8N2 Capacitive type Cylindrical Proximity Switch M18 Threaded Metal housing

Description
C-lin Brand proximity sensor switch is a displacement sensor with switching output, output mode have NPN, PNP, NO, NC and relay etc, it can be detect metal (such as iron, steel, copper) object, plastic, glass, wooden, water, paper, magnetic etc. transparent or opaque objects, can be connect with PLC, servo controller, frequency inverter, counter, controllers to achieve the purpose of automatic signal input control. It is widely used in the field of machinery, textile, light industry, papermaking, printing, packing industries. Meanwhile as per to market demand, we developed C series high class proximity sensor and normal class proximity sensor.
Inductive type Proximity Sensor can detect metal object ( such as Iron, Steel, Copper etc)
Capacitive type proximity sensor can detect any object (such as glass, metal,water, oil, paper etc.)
Product Features
Stable performance
Inside element with SMT process technology
With stable performance and reliable quality
Circuit protection
Reverse polarity protection to avoid un-correct wiring
Safety and reliable
Adopt imported emitter and receiver, high accuracy of sensing distance.

Model meanings

Specifications

Model			CJM18M Series	CJM20M Series	CJM24M Series	CJM30M Series	CJM34M Series
DC Type	NPN	NO	CJM18M-8N1	CJM20M-10N1	CJM24M-10N1	CJM30M-15N1	CJM34M-25N1
		NC	CJM18M-8N2	CJM20M-10N1	CJM24M-10N2	CJM30M-15N2	CJM34M-25N2
	PNP	NO	CJM18M-8P1	CJM20M-10P1	CJM24M-10P1	CJM30M-15P1	CJM34M-25P1
		NC	CJM18M-8P2	CJM20M-10P2	CJM24M-10P2	CJM30M-15P2	CJM34M-25P2
AC Type	2-wire	NO	CJM18M-8A1	CJM20M-10A1	CJM24M-10A1	CJM30M-15A1	CJM34M-25A1
		NC	CJM18M-8A2	CJM20M-10A2	CJM24M-10A2	CJM30M-15A2	CJM34M-25A2
Sensing distance			8mm±15%	10mm±15%	10mm±15%	15mm±15%	25mm±15%
Response frequency		DC	0.2KHz
		AC	25Hz
Detectable object			Any object: Metal, plastic, glass, wooden, water, oil etc.
Differential travel			Within 1%-10% of the sensing distance
Power supply voltage			DC type: DC12-24V;
			AC type: AC90-250V 50/60Hz
Current consumption			DC type:≤8mA/12V, 15mA/24V; AC type:<5mA;
Control output			Max 300mA
Protection circuit			DC type: Reverse polarity, short circuit protection; AC type: surge supprossor

Dimensions

CJM18M, CJM24M, CJM30M Serial (Metal case)				CJM20M, CJM34M Series (Plastic Case)
Case Material	Models	a	b	c	d	e	f	g
Metal case	CJM18M	M18x1	78±0.5	45	9	4	24	(30)
	CJM24M	M24x1.5	80±0.5	45	10	4.5	30	/
	CJM30M	M30x1.5	85±0.5	45	12.5	4.5	36.2	/
Plastic case	CJM20M	Φ20	84±0.5	54	/	20	(40)	44
	CJM34M	Φ34	94±0.5	60	/	20	(55)	59

Output Classification

Maintenance and overhaul
In order to ensure long-term stable operation of the proximity switch, please carry out the following periodic inspections;
1. Check that the installation position of the detection object and the photoelectric switch is offset, loose, and deformed.
2. Check the wiring, whether the connection part is loose or not, and the contact is broken.
3. Check for any deposits such as sticky metal dust.
4. Check the operating temperature and whether there are any abnormalities in the surrounding environment.