User Manual
Z-SG2 / Z-SG2-L
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Doc: MI-005370-EN
Rev. 1.0.0.2
Page 22
10.2.1.2.
CALIBRATION WITH SAMPLE WEIGHT
It is used when a sample weight is available (as far as possible towards the load cell full scale).
In this mode the calibration consists in acquiring both the tare and the sample weight directly on the field. For
more information refer to chapters 11 and 14 of the manual.
TYPE OF MEASUREMENT
It allows to configure the operation of the device between:
10.2.2.1.
COMPRESSION ONLY (SCALES)
It is used when a scale is being created in which the load cell is only compressed, in this case the maximum
resolution of the compression measurement is obtained.
10.2.2.2.
COMPRESSION AND TRACTION
It is used when a measurement system (typically of force) is being created that can both compress and extend
the load cell. In this case the direction of the force can also be decided, if compression the measurement will
have the + sign, if traction it will have the - sign. A typical case of use is to link the direction of the force to the
analogue output so that, for example, 4mA correspond to the maximum traction force and 20mA correspond to
the maximum compression force (in this case the cell at rest will provide 12Ma).
UNIT OF MEASUREMENT
It allows to set the weighing unit of measurement (selectable between Kg, g, t, etc. ...)
CELL SENSITIVITY
It is the value expressed in mV/V declared by the cell (in most cells it is 2mV/V).
CELL FULL SCALE
It is the value expressed in the selected unit of measurement declared by the cell.
SAMPLE WEIGHT
If the mode of operation with sample weight has been chosen, it is necessary to enter the value of the sample
weight that will be used in the calibration.
NOISE FILTER
It enables or disables the noise filter for the weight measurement. The filter consists of two sections:
In the first there is an anti-noise filter based on a statistic obtained from the input, in the second there is a filter
in moving average.
If the noise filter is disabled, it will still be possible to act on the moving average and on the ADC speed (see
chapter 10.2.9).
