Sick
Sick VTF18-3F5140 Photoelectric Proximity Sensor PNP M18 45mm IP67
A cylindrical photoelectric proximity sensor with PNP output, 45 mm sensing range, M18 thread and IP67 enclosure
- Detects objects up to 45 mm with focused infrared LED
- PNP light-switching output delivers 100 mA at 250 Hz
- IP67 nickel-plated brass housing withstands –25 °C to +70 °C
- M12 4-pin connector enables quick installation on M18 thread
- Background blanking ignores objects beyond the 50 mm maximum range
Industrial sensing fit
The Sick VTF18-3F5140 is a cylindrical photoelectric proximity sensor with background blanking for reliable detection in automation tasks. Its M18 x 1 threaded metal housing suits panel or bracket mounting where a compact axial optic is required. The PNP light-switching output integrates directly into 10 V DC to 30 V DC control systems. It serves engineers who need a focused infrared beam for precise presence checks.
Thermal and electrical profile
The sensor draws a maximum of 30 mA from the supply with a 10 % ripple tolerance. Switching response is 2 ms at up to 250 Hz, keeping power dissipation low in continuous operation. The nickel-plated brass body and PMMA optics are rated IP67, so the electronics stay sealed against dust and temporary immersion from –25 °C to +70 °C. No active cooling is needed.
Upgrade context
This model replaces older diffuse sensors that lack background blanking and therefore trigger on objects beyond the intended zone. The 45 mm sensing range with a 3 mm spot at 25 mm suits applications needing tighter focus than standard wide-beam units. It is not suited for long-range detection beyond 50 mm or for environments requiring adjustable sensitivity. The fixed M12 4-pin connector also means cable length cannot be changed on site.
Highlights
- Detects objects up to 45 mm with focused infrared LED
- PNP light-switching output delivers 100 mA at 250 Hz
- IP67 nickel-plated brass housing withstands –25 °C to +70 °C
- M12 4-pin connector enables quick installation on M18 thread
- Background blanking ignores objects beyond the 50 mm maximum range
Specifications
| Brand | sick |
|---|---|
| Model | VTF18-3F5140 |
Questions about this item
How do I mount the M18 cylindrical housing and wire the M12 4-pin connector, and what step do installers often miss?
Screw the sensor into an M18 x 1 threaded hole or nut, tighten to the recommended torque, then plug the 4-pin M12 cable. The step often missed is confirming the supply voltage is between 10 V DC and 30 V DC with ripple below 10 % before powering up.
What maintenance or replacement will the VTF18-3F5140 need over time?
The sensor has no user-serviceable parts. Keep the PMMA optics clean from dust or oil; if the housing or cable is damaged, or the output fails after long exposure beyond –25 °C to +70 °C, replace the entire unit.
What limit appears first during continuous operation at the 250 Hz switching frequency?
The 2 ms response time and 250 Hz switching frequency set the speed ceiling; sustained rapid cycling will hit the 100 mA output current limit before thermal or voltage limits are reached.
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