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Cylindrical M18 photoelectric sensor with radial lens and M12 connector

Sick

Sick VTF18-4P1940 Photoelectric Proximity Sensor PNP

SKU CH-DCJS-KYCHY

Cylindrical M18 photoelectric proximity sensor with background blanking, 3–90 mm sensing range, PNP output and IP67-rated plastic housing

  • Detects objects 3 mm to 90 mm away using focused infrared LED
  • Background blanking ignores reflections behind the target for reliable sensing
  • Adjustable sensing range via 270° potentiometer for precise setup
  • IP67-rated plastic housing withstands dust, water and –25 °C to +70 °C
  • PNP output with selectable light/dark switching at 250 Hz response

Sick VTF18-4P1940 proximity sensor

The Sick VTF18-4P1940 is a cylindrical photoelectric proximity sensor with background blanking and a radial optical axis. It delivers a PNP switching output selectable between light and dark operation via an external control cable. The sensor suits automation engineers who need reliable object detection at short range in a compact M18 housing. It is not for applications requiring sensing distances beyond one hundred millimetres or analogue output signals.

Integration into a control system

The sensor operates on ten to thirty volts DC with a maximum ripple of ten percent and draws thirty milliamps. A four-pin M12 male connector provides the electrical interface while the focused infrared LED produces a three millimetre spot at fifty millimetres. Potentiometer adjustment over two hundred seventy degrees sets the sensing range between three and ninety millimetres. The IP67-rated PBT/PC housing and PMMA optics withstand wash-down environments.

Thermals and power in normal use

Power consumption remains at thirty milliamps with a switching frequency of two hundred fifty hertz and a response time of two milliseconds. The output handles up to one hundred milliamps and includes circuit protection classes A through D. Ambient operating temperature spans minus twenty-five to plus seventy degrees Celsius. The unit weighs one hundred grams and carries UL file number NMFT2.E175606.

Highlights

  • Detects objects 3 mm to 90 mm away using focused infrared LED
  • Background blanking ignores reflections behind the target for reliable sensing
  • Adjustable sensing range via 270° potentiometer for precise setup
  • IP67-rated plastic housing withstands dust, water and –25 °C to +70 °C
  • PNP output with selectable light/dark switching at 250 Hz response

Specifications

BrandSICK
ModelSICK VTF18-4P1940

Questions about this item

How far can the Sick VTF18-4P1940 reliably detect objects?

The sensing range is 3 mm to 90 mm with a maximum reach of 100 mm using infrared LED light.

What happens to the sensor temperature and power draw during continuous operation?

It operates from –25 °C to +70 °C, draws 30 mA at 10–30 V DC, and has an IP67-rated plastic housing.

Which power supply and connector must I already have to install this sensor?

You need a 10–30 V DC source and a 4-pin M12 male connector for the PNP switching output.

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