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Smartphone app determines correct belt pretension

18 February 2013

With a new app from ContiTech, users can use a smartphone to quickly determine whether the belt pretension is correct. The free Tension2Go application measures the pretension frequency and pretension of industrial belts supplied by the ContiTech Power Transmission Group.

"Tension2Go quickly lets field staff, technical dealers and end customers know whether the belt pretension is correct – when the belt is first installed, being serviced or during trouble shooting," explains Dirk Bartsch-Kuszewski, head of Industry Application Engineering in the ContiTech Power Transmission Group.

"The app is thus a cost-efficient supplement to existing pretension measuring devices.“ ContiTech points out that the app does not replace a pretension measuring device.

How it works: The app measures the natural frequency of the belt. For this, the microphone of the smartphone is held above the free belt section and the belt is set into vibration so that the airborne noise can be recorded. Using the frequency value that is determined, the user can then select the pre-tensioning force.

As an alternative, Tension2Go can also calculate the tension of the belt directly if the belt type and the length of the free belt section has been entered before the measurement is taken. In order for the belt to run properly, it is crucial that the belt tension be correct.

Tension2Go is available for the iOS 6 and Android 2.2 operating systems and can be downloaded from the App Store or at Google Play. 


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