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m2000 user manual
Preliminary
Using linearity tables
Linearity tables are tables of action points with associated span values. Action points are
defined as internal AD counts from the AD converter. When the weight input to the
indicator passes over an action point the indicator will switch to a new span value.
Having different span values at different weight ranges on the scale helps to correct scale
structural or loadcell non-linearity.
The M2000 has 4 linearity table entries. Each scale channel has an independent table.
Making adjustments to one channel will not affect another. If you have a non-lineratity
error of more than 3d you should make a closer mechanical inspection of the scale and its
installation.
For every new calibration span entry into the linearity tables the M2000 calculates 2
additional linearity action points in between. This makes the transition from one
calibration entry to the next more gradual rather than a sudden jump at a specific action
point value.
The following parameters are used for linearity adjustment:
Parameter 15 clearing the span tables
It is always recommended to reset the linearity table before starting calibration. This
clears all entries except for the first calibration entry. To clear the table enter 15 followed
by the PRINT SELECT key. You will see a small ‘r’ indicating “reconfirm”. Press 1
followed by the TARE key to clear all the tables.
Parameter 16 incrementing a span table pointer
To add a calibration entry to the table you must increment the span table pointer.
To increment the table pointer press 16 followed by the PRINT SELECT key. The
current span pointer will be displayed. Press CLEAR to cancel or TARE to increment the
span pointer by 1.
Parameter 17 decrementing the span table pointer
To move one down through in the calibration entry you must decrement the span table
pointer. To decrement the table pointer press 17 followed by the PRINT SELECT key.
The current span pointer will be displayed. Press CLEAR to cancel or TARE to
decrement the span pointer by 1.
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