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3.6 Creating a material characteristic
The tension meter has been calibrated dynamic on material 1 according our SCHMIDT
procedure for a vertical material path and cannot be deleted or overwritten. The material
and diameter is given in chapter 2. Factory calibrations using customer supplied materi-
als follow the same procedure. In this case, however, the calibration on Schmidt material
1 is omitted. Fig. 3.6.1a shows a measuring setup for the dynamic calibration, while fig.
3.6.1b shows a measuring setup for the static calibration.
The material characteristics has been preset in the factory and cannot be over-
written. For these material characteristics, you can only change the damping fac-
tor, the alarm function setting, and the limit values.
3.6.1 Setup for calibration
Hang twice the weight (pulley effect) which corresponds to the tension to be
measured from the measured material, vertically, as shown here. Please keep
in mind to include the weight of the lower deflection pulley when you calcula-
te the suspended weight.
Running direction of the material to be
measrued
Line speed Vmax. = ETX 100 m/min
Vmax. = ETPX 60 m/min
Hang twice the weight (pulley effect) which
corresponds to the tension to be measu-
red from the measured material, vertically,
as shown here. Please keep in mind to
include the weight of the lower deflection
pulley when you calculate the suspended
weight. Pay attention to the correct unit of
measure.
dynamic calibration
fig. 3.6.1a
Weight
Material to
be measured
Guide rollers
Guide rollers
Measuring
rollers
Hang a weight which corresponds to
the tension to be measured from the
measured material, vertically, as shown
here. Pay attention to the correct unit of
measure.
fig. 3.6.1b
Weight
Material to be
measured
Guide rollers
Guide rollers
Measuring
rollers
static calibration
The tension meter has been calibrated dynamically (fig. 3.6.1a) according to the
SCHMIDT factory procedure. Therefore, differences may occur between static and
dynamic readings.
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