GRL18S-P2436

What type of sensor is this component?

It is a cylindrical retro-reflective photoelectric sensor designed to detect objects when they interrupt the light path between the sensor and a reflector.

What is the recommended sensing range?

When paired with a PL80A reflector, the specified sensing range is 0.06 m to 6 m. The maximum stated range is 0.03 m to 7.2 m, although actual performance depends on the reflector, alignment and installation conditions.

What type of light source does the sensor use?

The sensor uses a visible red PinPoint LED with a wavelength of 650 nm. The visible beam helps with positioning and optical alignment.

Does the sensor require a reflector?

Yes. As a retro-reflective photoelectric sensor, the GRL18S-P2436 operates with a suitable reflector positioned opposite the sensor. Its published sensing range is based on use with a PL80A reflector.

What supply voltage is required?

The operating supply range is 10 V DC to 30 V DC, with a typical current consumption of 30 mA.

What type of switching output is provided?

The sensor provides complementary PNP switching outputs with light-on and dark-on operation. Its maximum output current is 100 mA, reduced to 50 mA when the supply exceeds 24 V or the ambient temperature exceeds 49°C.

How quickly can the sensor detect a change?

It has a response time of less than 500 microseconds and a switching frequency of up to 1,000 Hz under the specified test conditions.

What electrical connection does it use?

The unit uses a straight, four-pin M12 male connector. The connection arrangement assigns pin 1 to L+, pin 3 to M, and pins 2 and 4 to the complementary outputs.

What are the sensor's dimensions and mounting format?

The housing measures 18 mm × 18 mm × 38.1 mm and has a cylindrical M18 × 1 threaded mounting format with an axial optical axis. Two fastening nuts are included.

What environmental protection does the housing provide?

The ABS plastic housing is rated IP67, providing protection against dust ingress and temporary immersion under the conditions defined by the rating.

What temperatures can the sensor operate in?

The specified operating temperature range is -25°C to +55°C, subject to the stated electrical load conditions. The storage temperature range is -40°C to +70°C.

What do the indicator LEDs show?

The green LED indicates that power is on. The yellow LED indicates light reception status: it remains illuminated when no object is present and switches off when an object is detected.

Does the sensor include a polarisation filter?

Yes. An integrated polarisation filter helps the sensor distinguish reflected light from unwanted reflections, improving object detection in retro-reflective applications.

Can the sensing distance vary with different reflectors?

Yes. Reflector size and type affect both the nominal and maximum sensing distances. Compatible options include the PL80A, PL40A, PL20A, P250, PL22 and suitable reflective tape.

What mounting and connection accessories may be useful?

Common complementary items include an M18 sensor mounting bracket, a universal reflector bracket, a suitable reflector and an A-coded four-pin M12 sensor cable. Accessory compatibility should be checked against the installation requirements.