Operating instructions – Belt tension meter BTM-1
Version 1.0
11
Measuring procedure
The belt tension can only be measured when the drive is switched off and
stopped.
Caution
Before making measurements, ensure that the machine is
switched off
(master switch) and secured against unintentional restarting.
The installed and tensioned drive belt is set into natural oscillation with a
short impulse or by striking it lightly.
This static characteristic frequency is measured by the probe by using light
pulses. There must be a sufficient amount of light reflected from the belt. If
the intensity is low because of a dark belt color it helps to mark to belt locally
with a bright color (e.g. correcting fluid or small piece of adhesive tape, etc.).
By using the measured frequency along with the mass of the belt (from the
integrated belt database, for example) the width and the length of the free
belt strand the Belt Tension Meter calculates the trum force.
The readout of the measured values will be indicated according to the
settings; for example, frequency in Hertz or force in Newton’s.
Summary of Contents for BTM-1
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