An infrared line camera PYROLINE 128M with a special spectral range from 3 µm to 5 µm is in a temperature range from 400 °C to 1200°C is used to detect this. The camera with a IP65 protected industry housing was equipped with an additional air purge to keep the lense free of dust and dirt. A bridge over the band conveyor was chosen as a location for installation. So the access to the camera in a case of maintenance is guaranteed.

The data is sent via fibre optics to a computer in the control room to fulfill the hard electromagnetic requirements. The computer with the software PYROSOFT Automation records continuously a thermographic picture of the passing steel billets. The picture is played on a screen in the control room and is available for the user immediately. In addition there is a data storage to make the pictures available for quality control at a later date.

Because different sizes and amounts of collateral legs of reinforcing bars are produced, the software allows the switching of saved templates per touch-screen. In this way it is guaranteed that the right settings are used.