M12 Non-Flush Capacitive Proximity Sensor
✨Features
Product Introduction
The M12 Non-Flush Proximity Sensor is a versatile and reliable detection solution for industrial automation. Featuring a standard M12 threaded housing with a 50mm body length, it integrates easily into existing mounting brackets.
With a 4mm sensing distance, this non-flush model provides reliable detection of metal targets. It stands out with its PTFE (Teflon) housing option, making it the perfect choice for chemical processing, electroplating, or food industry wash-down zones where corrosive agents are present. Rated IP67 and operating on 10-30 VDC, it delivers consistent NPN or PNP switching performance in demanding environments.
Size and Structure
Circuit diagram
| Parameter | Specification |
|---|---|
| Housing Size | M12 x 50 mm |
| Mounting | Non-Flush (Non-Shielded) |
| Sensing Distance (Sn) | 4.0 mm |
| Output Configuration | NPN / PNP (Selectable) |
| Switching Logic | NO / NC (Selectable) |
| Operating Voltage | 10 ... 30 VDC |
| Load Current | <= 200 mA |
| Current Consumption | <= 15 mA |
| Residual Voltage | <= 2.5 V |
| Switching Frequency | 100 Hz |
| Switching Point Drift | <= +/- 10% |
| Hysteresis | 3 ... 20% |
| Repeat Accuracy | <= 3% |
| Protection Circuit | Surge, Overload, Short-circuit, Reverse Polarity |
| Housing Material | Metal / Plastic / PTFE (Selectable) |
| Connection | 2m PVC Cable |
| Indicator | Yellow LED |
| Ambient Temperature | -25 C ... +60 C |
| Ambient Humidity | 35 - 95% RH |
| Protection Degree | IP67 |
FAQ
Q：What are the installation requirements for a "Non-Flush" sensor?
A：Since this is a Non-Flush (Non-Shielded) sensor, the sensing cap protrudes from the metal housing. You cannot bury it completely in a metal bracket. You must leave a "Clear Zone" (metal-free area) around the sensing head—typically 2 to 3 times the sensing distance—to prevent the bracket itself from triggering the sensor.
Q：When should I select the PTFE housing instead of Metal?
A：You should select the PTFE (Teflon) housing if the sensor will be exposed to strong acids, alkalis, or solvents. Standard Nickel-Plated Brass or even Stainless Steel can corrode over time in these environments, whereas PTFE is chemically inert and will ensure a longer service life.
Q：Why is the range 4mm? I have seen M12 sensors with shorter ranges.
A：4mm is the standard range for a Non-Flush M12 sensor. A Flush (Shielded) M12 sensor typically has a range of only 2mm. The Non-Flush design sacrifices the ability to be embedded in metal in exchange for double the sensing distance, which is useful for targets that cannot pass very close to the sensor face.
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