Mutec MF3000 Ex, Руководство по обслуживанию

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11/2018
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9. Calibration of Measured Value
After the installation of the software MF-SMART, it is possible to parameterize the MF3000-*-Ex* .
For exact measurements, a multipoint calibration is essential. At least two reference measurements with
a known quantity of bulk material are necessary.
In case of a calibration for 3 to a maximum of 10 calibration points, the different reference quantities or
weighing equipment are needed accordingly.
• Convey or fill quantity 1 with constant pressure and constant speed into the free fall pipe
• The calibration routine for the first calibration point will be started with the installed software MF-
SMART on the PC . The measured raw value will be determined and assigned to the real mass
flow (the reference value).
• For the second calibration point and the second quantity, repeat the steps in the same way.
2-point-calibration linear characteristic curve:
Fig. 15 Fig. 16
Calibration of 3 points or more
In case of pneumatic and free fall conveyance, the flow structure changes according to the conveyed
quantity. Therefore the curve won’t be a linear function in most areas of the measuring range. It has to
be compensated by a piecewise linear function. Up to 10 linearization points are available.
3-point-calibration for non linear characteristic curve:
Fig. 27 Fig. 38