A-level LHM18 A-Levelinductive Proximity Switch
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Explanation of The Meaning Of Proximity Switch Model

A proximity switch is a position sensor that can detect the presence of obiects without direct contact, it is widely used in various industrial automation and control systems for control the movement of mechanical equipment, monitoring the position of items on the production line, counting, etc, Proximity switches can provide fast and reliable detection functions, and as they do not require physical contact, they can reduce wear and tear damage, extend service life. Proximity switches can be mainly divided into the following categories based on their working principles:

1. inductive proximity switch: detects obiects by utilizing their influence on the electromagnetic field. When a metal object approaches, it will change the electromagnetic field around the switch, triggering the switch action, This type of proximity switches are commonly used to detect metal obiects.

2. Capacitive proximity switch: achieves detection by detecting the influence of objects on the electric field. when an object approaches, it will change the capacitance between the two plates of the capacitor, triggering the switch. Capacitive approach the switch can be used to detect both metallic and non-metallic objects.

3. Hall type proximity switch: a device that identifies objects approaching by detecting changes in magnetic fields. When a magnetic object approaches a sensor, it changes the magnetic field around the sensor. Due to the changes in the magnetic field. A voltage diference is generated on both sides of the hall sensor, and the Hall voltage is converted into an electronic signal. This type of proximity switch is usually used to detect magnetic objects.

 

Model A-level LHM18
Dimension
Sense distance 5mm±10%
Flush type DC10~30VDC NPN NO LHM18-3005NA
NC LHM18-3005NB
NO+NC LHM18-3005NC
PNP NO LHM18-3005PA
NC LHM18-3005PB
NO+NC LHM18-3005PC
Two-wire system NO LHM18-3005LA
NC LHM18-3005LB
AC90~250VAC NO LHM18-2005A
NC LHM18-2005B
NO+NC LHM18-2005C
Sense distance 8mm±10%
Non-flush type DC10~30VDC NPN NO LHM18-3008NA
NC LHM18-3008NB
NO+NC LHM18-3008NC
PNP NO LHM18-3008PA
NC LHM18-3008PB
NO+NC LHM18-3008PC
Two-wire system NO LHM18-3008LA
NC LHM18-3008LB
AC90~250VAC NO LHM18-2008A
NC LHM18-2008B
NO+NC LHM18-2008C
Output current DC 200mA
AC 300mA
Output voltage peak DC type below 3V、Two wire type below 3.9V、 AC below l0V DC<3V, AC<10V
Consumption current DC type 8mA at 12V, 15mA at 24V, AC below 10mA DC<15mA, AC<10mA
Standard detected object 20×20×1 (A3 iron)
Repeatability 0.05
Response frequency 200Hz/25Hz
Ambient temperature -25℃-+75℃
Insulation resistance 50MΩ
Shell material Metal
Protection grade IP67
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