5
1.3 Technical Measuring Information
The Transducer (measuring platform/Dynamometer) has to be positioned on a solid base,
without allowing any movement.
At that time, the transducer should be free of external forces or vibrations (such as the dis-
tortion of the measuring platform resulting from incorrect installation).
After each start-signal, the charge amplifier will reset and perform a zero calibration. Ex-
ternal forces, momentum, or vibration can distort the torque measurement.
IMPORTANT
For quality assurance and to keep accurate documentation for an audit, we
recommend to have your measuring instruments factory-calibrated every 12-
months.
We offer those types of calibration services for all our torque measuring in-
struments and transducers. We can also calibrate and certify your complete
measuring chain. Please contact us for additional information.
Terminology
Measuring Value Submitted torque from transducer
Calibration Value Sensitivity of transducer
Measuring Series A pre-programmed amount of measuring values are stored. At the
end of a measuring series, the average torque, the standard devia-
tion and the Cmk-value will be calculated.
Average Average mean torque value is calculated from a specific number of
stored measuring values X
N
X
i
N
_
=
∑
1
Standard Deviation Standard deviation is calculated from a specific number of previ-
ously stored values when compared to the average torque
s
X X
N
i
i
N
=
−
−
=
∑
( )
_
1
2
1
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