1 Purpose and Functions
The FOTEK PL-05N inductive proximity sensor is a professional electronic device designed for the non-contact detection of metal objects within its operating range. Thanks to the use of inductive technology, the sensor does not require physical contact with the detected object, which eliminates mechanical wear and significantly extends the service life of the device. The product is widely used in industrial automation for positioning machine components, in counting systems, and in security and alarm systems (e.g., signaling the opening of windows or gates).
Main features:
- ✔ Solid workmanship from the renowned Taiwanese company FOTEK
- ✔ High-quality materials used to ensure durability
- ✔ Built-in LED indicating correct operation and switching state
- ✔ Absence of mechanical switching elements increasing reliability
- ✔ High response frequency of 800Hz
- ✔ Compact FLUSH type housing (integrated front)
Wiring instructions:
The sensor is equipped with a 3-core cable with a length of 1 meter. Connection should be made according to the following color scheme:
- Brown: Positive power supply (+) 10-30V DC
- Blue: Negative power supply (-) Ground / GND
- Black: Signal output (NPN NO)
2 Technical Specification
| Model | FOTEK PL-05N |
| Output type | NPN NO (Normally Open) |
| Detection distance | 5 mm |
| Supply voltage | 10-30V DC |
| Response frequency | 800 Hz |
| Maximum load | 150 mA |
| Hysteresis | < 10% of detection distance |
| Cable length | 1 m |
| Sensor dimensions | 17 x 17 x 35 mm |
| Mounting holes | 3.2 mm (pitch 10.5 mm) |
| Housing color | Red |
| Certificates | CE, RoHS |
| Weight with packaging | 34 g |
3 Installation and Assembly
FLUSH installation principles:
The PL-05N model is a sensor designed for flush mounting. This means it can be embedded into metal material until its active surface (face) is flush with the surface of that material. Such a design does not degrade the device's operational characteristics.
Installation tips:
- Free space must be provided between the active surface of the sensor and the detected material to avoid mechanical damage.
- During installation, the factory-made 3.2 mm diameter mounting holes should be used.
- In case of mounting multiple sensors next to each other, appropriate distances must be maintained to avoid mutual electromagnetic interference.
4 Safety and Maintenance
Warning:
The device operates at 10-30V DC voltage. Installation work should be carried out by a person with appropriate electrical qualifications.
- Power supply: Do not exceed the maximum supply voltage of 30V DC. Using alternating current (AC) will cause irreversible damage to the sensor.
- Polarity: Before switching on the power, make sure the brown (+) and blue (-) wires are connected correctly.
- Load: Do not exceed the maximum output load current (150mA). Exceeding this value may lead to burning out the output transistor.
- Environment: Despite the solid housing, protect the sensor from direct exposure to strong acids and extremely high temperatures outside the operating range.
- Maintenance: The sensor does not require regular mechanical maintenance. One should only take care to keep the active surface (face) clean, as thick layers of metallic contaminants can affect detection precision.
5 Package Content
- ✔ 1x FOTEK PL-05N inductive proximity sensor with 1m cable