Sick
Sick VTF18-3E5740 Photoelectric Proximity Sensor NPN
Detects objects up to 50 mm using infrared light with an NPN output and IP67-rated plastic housing
- Detects objects up to 50 mm with infrared LED
- Adjustable sensing range via potentiometer for precise setup
- NPN light-switching output integrates with PLC systems
- IP67-rated plastic housing withstands dust and water jets
- Operates reliably from –25 °C to +70 °C ambient temperature
SICK VTF18-3E5740 Proximity Sensor
The SICK VTF18-3E5740 is a cylindrical photoelectric proximity sensor with an NPN switching output. It is designed for industrial automation tasks that require object detection within a short range. The sensor operates on a 10 V DC to 30 V DC supply voltage. This unit suits engineers integrating presence detection into machinery or conveyor systems.
Thermals Noise and Power Draw
The sensor consumes a maximum of 30 mA during normal operation. Its plastic housing is rated IP67, protecting internal electronics from dust and water ingress. The unit functions reliably across an ambient operating temperature range of –25 °C to +70 °C. No active cooling or fan is required for this low-power device.
45 mm Sensing Range Decides Fit
The maximum sensing range reaches 45 mm using infrared LED light emission. Detection distance is adjustable via a built-in potentiometer for precise application tuning. A response time of 2 ms supports high-speed detection cycles. Buyers needing a sensing distance beyond 45 mm should select a different sensor model.
Highlights
- Detects objects up to 50 mm with infrared LED
- Adjustable sensing range via potentiometer for precise setup
- NPN light-switching output integrates with PLC systems
- IP67-rated plastic housing withstands dust and water jets
- Operates reliably from –25 °C to +70 °C ambient temperature
Specifications
| Brand | Sick |
|---|---|
| Model | SICK VTF18-3E5740 |
Questions about this item
How do I install the Sick VTF18-3E5740 sensor and what step is often missed?
Mount the cylindrical housing with its 78 mm dimension, connect the 4-pin M12 male connector, and supply 10 V DC to 30 V DC with ripple below 10 %. The step often missed is setting the potentiometer so the sensing range stays within 0 mm to 45 mm for reliable detection.
What maintenance or replacement will the Sick VTF18-3E5740 need over time?
The IP67-rated plastic housing and PMMA optics resist dust and water, but the infrared LED and potentiometer can drift after prolonged exposure to the –25 °C to +70 °C operating range. Plan to verify the 2 ms response time annually and replace the unit if the NPN light-switching output becomes unstable.
What limit appears first when the Sick VTF18-3E5740 runs continuously?
The 30 mA power consumption at 10 V DC to 30 V DC generates internal heat. In a sealed IP67 enclosure at the upper 70 °C ambient temperature, thermal stress on the plastic housing and LED reaches its limit before the 2 ms response time or 50 mm maximum sensing range degrades.
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