Typical Applications

Slab – bloom detection at the exit of reheating furnace

The Emitter VLP20 unit emits a high power infrared laser pulse. This pulse is received by a photosensitive diode fitted with an optical filter and whose signal is processed by the incorporated circuitry of the Receiver VRH. The output changes state depending on whether the modulated beam is interrupted or not. The modulation of the emission, the particular characteristics of the optical filter and the automatic correction for ambient light make the sensor insensitive to any other source.

Special Features

• Very high power infrared laser pulse.
• Insensitivity to ambient light and radiation from furnaces.
• Pre-failure, alarm output when the lenses are becoming dirty (signal at the limit of detection threshold).
• Air purging and water-cooling.
• Modular construction allowing rapid maintenance.