LJA12 Long Cylindrical Inductive Proximity Switch

LJA12 Long Cylindrical Inductive Proximity Switch

LJA12 proximity switch is a displacement sensor with switching output. The output includes NPN, PNP, normally open, normally closed, relay, etc. It can detect transparent and opaque objects such as metal (such as iron, steel, copper), plastic, glass, wood, water, paper, magnets, etc. It can be controlled with PLC and servo Inverters, frequency converters, counters, and controllers are connected to realize automatic signal input.
Widely used in machinery, textile, light industry, papermaking, printing, packaging and other industries.
At the same time, it is divided into two series: C series high-end proximity switch and ordinary type according to the use requirements.
Inductive proximity switches detect metal objects (such as iron, steel, copper, etc.);

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Description

Output form			Embedded	Non-embedded
D C	NPN	NO	LJA12-2N1	LJA12M-2N1
		NC	LJA12-2N2	LJA12M-2N2
	PNP	NO	LJA12-2P1	LJA12M-2P1
		NC	LJA12-2P2	LJA12M-2P2
	2-wire	NO	LJA12-2D1	LJA12M-2D1
		NC	LJA12-2D2	LJA12M-2D2
A C	2-wire	NO	LJA12-2A1	LJA12M-2A1
		NC	LJA12-2A2	LJA12M-2A2
Detection distance ※1			2mm	4mm
Setting distance			0 ～ 1.7mm	0 ～ 3.4mm
Standard detection object			12121mm Iron
Response frequency ※2			N / P ：1200Hz、DC:200Hz、AC:25Hz
Return Difference			Less than 15 % of detection distance
Detectable objects			Magnetic metals (shorter detection distances for non-magnetic metals)
Supply Voltage			DC ：Rated voltage DC12~24V (use range voltage DC10~30V);AC：M8:AC90~250V,M12-M30:AC24~250V
Operating current			Load current ≤200mA
Residual voltage			NPN ：≤ 1.5V;PNP ：≤ 2.5V; DC 2-wire：≤ 4V; AC 2-wire：≤ 7V
Leakage current			When 24VDC, max 0.1mA
Protection circuit			DC: polarity, overcurrent protection; AC: surge absorption protection
Indicator light			Dual light display: power indicator green, action indicator red
Temperature range			Operating: -25 to +70°C (no icing, condensation); Storage: -40 to +85°C (no icing, condensation)
Humidity range			Operation, storage: 35～95% (no condensation）
Temperature effect (drift)			-25～+70℃ temperature range, the detection distance is within ±10% of the detection distance at +23℃.
Protective structure			IP67
Housing Material			Chrome Plated Brass
Sensing surface material			PBT

Overall dimensions	Embedded			Non-embedded

Item	Specification	a	b		C	d	e	f	g
Embedded	LJA8	41.7±0.5	35±0.5			3.5	M8×1	12	AF12
Non-embedded	LJA8M	45.2±0.5			4
Embedded	LJA12	51.6±0.5	40±0.5	40±0.5		4	M12×1	17	AF17
Non-embedded	LJA12M	54.0±0.5		35±0.5	8
Embedded	LJA18	51.8±0.5	52±0.5	40±0.5		4	M18×1	24	AF24
Non-embedded	LJA18M	58.0±0.5		35±0.5	12
Embedded	LJA30	52.0±0.5	52±0.5	40±0.5		4.7	M30×1.5	36.2	AF35.8
Non-embedded	LJA30M	61.0±0.5		35±0.5	15