Application
The VB2 reflecting optical barrier resolves all detection problems that may arise in the most diverse types of industry.  Examples include heavy industry (steel), handling and transport.  The use of visible emission greatly facilitates setting up the barrier.

Presentation        Up
The VB2 is a self-contained sensor.  All the opto-electric components are on a mounted PCB including:
• a power supply unit with transformer
• an optical unit equipped with light emitting diode and reception
  photodiode
• an amplifier with output interface (solid state or relay output)
.

Working Principle       Up
A beam of visible modulated light is emitted by the diode emitter and reflected back along the same path by a prism reflector placed opposite the sensor.  The reflected beam is focused onto the photodiode which outputs an electrical signal to the amplifier circuit.  Depending on whether the modulated beam is interrupted or not, the output is switched.  Modulating the emission and automatic correction for ambient light in the amplifier circuit, render the sensor insensitive to ambient light.

Special Features      Up
• Visible red diode emission
• Insensitivity to ambient light
• Visor to protect the optics
• Switching test lamp
• Connection via a connector or via a cable through a gland output
• Relay or static output
• Accessories: 
     - Socket with cable (only for connector variation)
     - Cooling plate only or cooling plate with adjustable stand

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