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Help CenterWinston Dustproof Inductive Proximity Sensor IP67 , 3 Wire Proximity Switch PR12
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Certification:CE,FCC,MSDS
| Dimension | M12 | |||
| Mounting way | Non-screen shield | |||
| Type | DC type | NPN | NO | PR12-4DN |
| NC | PR12-4DN2 | |||
| NO+NC | ||||
| PNP | NO | PR12-4DP | ||
| NC | PR12-4DP2 | |||
| NO+NC | ||||
| Two wire | NO | PR12-4DO | ||
| NC | PR12-4DC | |||
| AC type | Two wire | NO | PR12-4AO | |
| NC | PR12-4AC | |||
| Three wire | NO+NC | |||
| Dectection distance | 4mm±10% | |||
| Set distance | 0~3.2mm | |||
| Standard detection object | iron 15*15*1mm | |||
| Response frequency | DC 0.5kHz AC:25Hz |
|
Consumption current |
N.P Type: < 13mA ; DC type: <0.8mA; AC type: <1.7mA |
|
Power supply |
DC type: DC12-24V AC type:AC110-220V |
|
Response frequency |
DC: 0.5kHz AC:25Hz |
|
Ambient temperature |
-25 ~+65 |
|
Insulation resistance |
≥ 50MΩ |
|
Protection grade |
IP67 |
Features:
1 . Improved the noise resistance with dedicated IC
2 . Built-in reverse polarity protection circuit (DC 3-wire type)
3 . Built-in overcurrent protection circuit(DC type)
4 . Long life cycle and high reliability, and simple operation
5 . Replaceable for micro switches and limit switches
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 . Stopper detection of grinding machine
3 .
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