1. Mounting multiple thru-beam pairs

When mounting multiple thru-beam pairs, take care so that the transmitted beam of one sensor does not interfere with other receivers. A simple solution is to alternate transmitters and receivers as shown.

2. Highly reflective object

A highly reflective object passing through a beam may reflect light onto an unrelated receiver causing a false signal. A simple solution is to place barriers between the sensors to block any stray reflections

3. Bright ambient light

Because sunlight contains the same wavelengths of light as photoelectric transmitters, very bright ambient light can often fool the receivers. This is commonly seen when photoelectric sensors are used for home garage door openers and sunlight at a certain angle can interfere with the door operation. Possible solutions include angling the sensors, adding a barrier or reversing the transmitter and receiver.

O8 miniature rectangular photoelectric sensor
Setup and support
Installation guidelines

O8 photoelectric sensor: Installation guidelines

The O8 photoelectric sensors and available mounting brackets are easy to install and are available in the following types: diffuse, diffuse with background suppression, polarized retro-reflective, and through-beam pairs. This page features our installation guidelines, and you can keep reading for device configuration instructions.

For additional support, contact our service center at 1-800-441-8246 to speak with one of our applications engineers.

Diffuse / Diffuse with background suppression

Detect objects by evaluating reflected light from the target
Background suppression models ignore reflections from shiny backgrounds

Polarized retro-reflective

Detect objects that interrupt light between the sensor and a reflector
Polarization filters prevent false detection from shiny surfaces

Explore reflector options

Through-beam

Detect objects that interrupt light between separate transmitter and receiver units