Fork type photoelectric sensor OVP4-75.10.FK

Sn=30mm, PNP/NO+NC, 10-30VDC, 250mA, 75x18x52mm

Price 51.98 EUR no VAT

The OVP4-75.10.FK fork type infrared photoelectric sensor for direct current consists of a receiver and transmitter which are located in a metal housing 75x18x52mm. The output of the sensor is PNP type with one normally open and one normally closed contact. The width of the air gap of the optical sensor is 30mm. The optoelectronic sensor ends with a 4-wire PVC connecting cable with a length of 2m and has an LED indicator showing the output state of the optical sensor. The sensor's outputs are protected of overload and short circuit.

Application and operating principle

The OVP4-75 presented fork type photoelectric sensor serves to switch direct current circuits. The principle of operation consists in the emitting and the receiving an unmodulated (constant) light ray in the infrared area of the spectrum. When an object passes through the sensor slot, the light ray is interrupted and the sensor output switches from one state to another. The sensor has a good resolution (1,0 mm) and is used to measure the revolutions of shafts and other rotating objects. When there is an object in the sensor slot, the output indicator lights up.


Operating distance (slotted width), Sn 30 mm
Supply voltage, Us 11…30 VDC (Ripple ±10 %)
Residual voltage (max), Ures 0,8 V (I = 250 mA)
Load current (max), Iout 250 mА
Protection of output (scanning), Iprot 350 mA (25°С)
Current consumption, Is 18 mA
Switching frequency (max), fo 200 Hz
Spectrum area of operating 850…950 nm
Operating ambient illumination 3’000 Lx
Operating temperature range, Tamb -10°…+50° C
Degree of protection IP65
Light output indicator LED
Connection cable 4x0.25 mm², L=2 m, PVC
Overall dimensions 75x18x52 mm
Housing - plastic PVC


Scheme of connection

Overall dimensions (mm)

Overall dimensions of the OVP4-75 slotted optical sensor

Short description

The OVP4-75 slot photoelectric and optoelectronic sensor which is used in industrial systems, as electronic automation equipment for switching at 3-wire and 4-wire electrical circuits of direct current. The sensor is activated when a label passes through its air gap. The fork type photoelectric sensor there is a longer period of work due to contactless switching of the electrical circuits in which is included.


OVP4-75.10.FKPNP / NO + NC
OVP4-75.20.FKNPN / NO + NC