Features

• Scanning range: 50 m with reflector R430HT, 30 m with R110, 20 m with R110HT
• Visible laser beam of class 2 (no particular using condition according EN 60825-1).
• Bright beam easy to align and which enables large detection range (up to 100 m).
• High accuracy detection.
• Beam modulation and optical filter to have no interference from ambient light. Model with special filter for use in environment with high-level light.
• Cast aluminium case with air purged hood for protecting the lens and water-cooling plate.
• Alignment and checking devices: sensitivity potentiometer, jack socket for aid during alignment, light indicator showing operation.
• Model with alarm signal (V51) when lens or reflector is dusty.
• Model with filter (V5G) for application with emitting background.
  

Examples of applications

Tail detection for on fly length measurement

Slab detection – Charging of reheat furnace

The Laser Barrier V5 can be used for all detection applications of cold product in the Steel industry.

Presentation

The Laser Barrier V5 consists of :

• An optical unit equipped with laser emitting diode, reception photodiode, electronics with relay or transistor output and power supply.
• A terminal block with protection cover or a connector fitted with high temperature cable with metallic braid.
• A hood for lens protection with purging air connection.
• An optional water-cooling plate for use at ambient temperature higher than 50 °C.
  

Operating principle

The visible and modulated beam emitted by the laser diode is reflected back by a prism reflector placed opposite to the sensor, then detected by the photodiode which outputs a signal to the processing electronics. Product presence is determined if the beam is blocked or not. Beam modulation, special optical filter and automatic correction make the sensor insensitive to ambient light.