overview

By measuring the distance from a fixed UltraSonic sensor to the rotating web, a Digital Controller (i.e. MEROBEL’s DGT 300) is easily able to calculate anytime the actual web diameter.

The knowledge of real time web diameter variation gives then the opportunity to make the torque applied to web shaft variable, and then to keep the tension stable, despite of the web diameter variation all along the unwinding or rewinding process.

features

- Ultra compact
- Easy to install on any existing equipment
- Easy calibration
- Compatible with almost all existing type of papers, films, foils and wires (take up flyers)
- CE- CEM compatible




NR7
Working zone 100 to 1000 mm
Minimum target width : 100 mm
Emission freq. : 240 Hz

NR 2C
Working zone 400 to 2500 mm
Detection angle : 10 °
Emission freq. : 120 Hz