Operating instructions – Belt tension meter BTM-1
Version 1.0
15
Measurement Procedure
Switch on the Belt Tension Meter pushing
. The instrument is ready for
taking measurements.
1. Input the belt strand length and width
see "Menu structure" p. 18.
2. Select the belt type
choose belt nr. 0 for individual type or select a belt
type from the implemented belt database. In case of using individual
types it is required to input the belt weight per square meter.
3. Set the drive belt into natural oscillation by striking it.
4. Hold the measurement probe over the drive belt at approximately the
center of the free belt span length.
The distance from the belt can be between 3 and 20 mm.
5. The result is displayed in Newton or Hertz. A successful measurement is
acknowledged by a longer acoustic signal.
6. Check the setup and repeat the measurement.
General installation instructions for belt drives
As a consequence of thermoplastic materials belts relax after a
certain time of installation. Therefore it is recommended to check
and adjust the tension after a few hours of operation. Along with
the recommended tension by the belt supplier the admissible
radial forces of the bearings have to be considered as well
Radial force = 2x trum force.
Interpretation of measurement deviations
Measurement deviations of about +/-10 % within repeated
measurement of the same application don’t necessarily indicate a
problem of the device. In most cases this is attributed to
mechanical tolerances of the belt drive and variation in excitation
of the belt vibration.
Therefore it is recommended to make several measurements and
take the average.
Summary of Contents for BTM-1
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