Explosion-proof single-beam photoelectric sensors

Single-beam photoelectric sensors consist of separate housings where the transmitter and receiver are spatially separated. The transmitter directs its light directly at the receiver. When an object interrupts the light beam, the voltage at the receiver drops, triggering the switching function.

This principle enables the detection of opaque and reflective objects and allows for long detection ranges. Single-beam photoelectric sensors are robust and resistant to interference, making them particularly suitable for use in demanding conditions.

Highlights:

- Directly usable in Ex zones 1, 2, 21, 22; can beam into Ex zones 0 and 20
- Available in red light, infrared light, and laser (red, 650 nm) versions
- Versions with contamination indicator, extended temperature ranges, alignment assistance
- Versions with fiber optic adaptation, analog and digital outputs
- Available in Ex d and Ex i versions
- M18, M30 designs in metal housings

Applications:

- Presence monitoring
- Positioning tasks
- Object detection
- Process monitoring and control
- Level measurement and monitoring