Working principle 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.
Main features
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Compact volume
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High precision of repeated location
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Diversified exterior structures
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Good performance of anti-interference
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Many output forms
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High on-off frequency
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Wide voltage range
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Dust proof, vibtation proof, water proof and oil proof
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With short-circuit protection and inverted connecting protection
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Long service life
| Structural category | Plane installation type | |||
| Non-flush | Detection distance | 1 -50mm | ||
| 10-30 VDC | NPN | NO | LMF39-3050NA | |
| NC | LMF39-3050NB | |||
| NO+NC | LMF39-3050NC | |||
| PNP | NO | LMF39-3050PA | ||
| NC | LMF39-3050PB | |||
| NO+NC | LMF39-3050PC | |||
| Two wire system | NO | LMF39-3050LA | ||
| NC | LMF39 -3050LB | |||
| 90~ 250 VAC | SCR Controllable silicon | NO | LMF39 -2050A | |
| NC | LMF39-2050B | |||
| NO+NC | LMF39 -2050C | |||
| Relay output | LMF39-2050JC | |||
| Control output | DC | 200mA | ||
| SCR/Relay | 300mA/ 2A | |||
| Output voltage dropDC/AC | DC<3V , AC<10V | |||
| Consumption current | DC<15mA , AC<10mA | |||
| Standard detected object | 120×120×1(A3iron) | |||
| Repeated precision | 0.5 | |||
| DC/AC Response frequency | 50Hz/10Hz | |||
| Working environment temperature | -25℃~ +75℃ | |||
| Insulation resistance | 50MΩ | |||
| Shell material | ||||
| Protection grade | IP67 | |||
Dimensions(mm)
