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DETECTION DISTANCE | |||||||
Flush | DC 10-30V | NPN | NO | ||||
NC | |||||||
NO+NC | |||||||
PNP | NO | ||||||
NC | |||||||
NO+NC | |||||||
two wire system | NO | ||||||
NC | |||||||
AC 90-250V | SCR Control-lable silicon | NO | |||||
NC | |||||||
NO+NC | |||||||
Relay output | |||||||
DETECTION DISTANCE 25MM | |||||||
Non-Flush | DC 10-30V | NPN | NO | LMF55-3025NA | |||
NC | LMF55-3025NB | ||||||
NO+NC | LMF55-3025NC | ||||||
PNP | NO | LMF55-3025PA | |||||
NC | LMF55-3025PB | ||||||
NO+NC | LMF55-3025PC | ||||||
two wire system | NO | LMF55-3025LA | |||||
NC | LMF55-3025LB | ||||||
AC 90-250V | SCR Control-lable silicon | NO | LMF55-2025A | ||||
NC | LMF55-2025B | ||||||
NO+NC | LMF55-2025C | ||||||
Relay output | |||||||
Controloutput | DC | 200mA | |||||
SCR/ Relay | 300mA/2A | ||||||
Output voltagc dropDC/AC | NPN/PNP< 3V, Two wire< 3.9V, AC< 10V | ||||||
Consumption current | DC< 15mA, AC< 10mA | ||||||
Standard detected object | 70*70*1(A3 iron) | ||||||
Repeated precision | 0.2 | ||||||
DC/AC | 200HZ/10HZ | ||||||
Working environment temperature | -25~+70º C | ||||||
Insulation resistance | 50MΩ | ||||||
Shell material | ABS Resin | ||||||
Protection grade | IP67 | ||||||
Altemative model at home and abroad | HE-/HD- |
Model explanation of proximity switch
LM 18 30 05 N A □ / L
—— —— - —— —— —— —— —— ——
1 2 3 4 5 6 7 8
Switch category | Output form |
| N: Three-wire Dc NpN Output |
Outward appearance code | Output state |
| |
Working voltage | Subsidiart functions |
| T: with aviation connector |
Detection distance | Long-distance |
| L: Long-distance |
Working priciple inductive proximity switch
Inductive proximity switch is composed of three parts:oscillator,switch circuit and magnified output circuit.The oscillator will generate an alternating electric field.When hemetal object approaches this electric field and reaches the induction distance, whirlpool will generate in metal object, resulting in attenuation of vibrati on and then stop.The changeof vibration and stop of oscillator is treated by begid stage magnified circuit and convertedto switching sign,triggering driving con-contact detection.
Current consumption of inductive proximity switch decreases proportional to the metal object distance.
Application illustration of proximity switch
1 . Spacing detection
2 . Arm location detection of robot
3 . Inspection of the exiating of milk inside the paper package
4 . Stopper detection of grinding machine
5 . Bottle lid detection
Dimension
Product Picture