Dr 32 – Classification Of Tolerance Evaluation - Siemens SIWAREX FTA Device Manual

5.21.3 DR 32 – Classification of tolerance evaluation
The statistics of the results of a tolerance check provides information on the quality
of the weighing procedures. Following results are produced:
Number of weigh procedures over tolerance TO2
Number of weigh procedures over tolerance TO1 but not greater than TO2
Number of good weighing procedures (in tolerance band from TU1 to TO1)
Number of weigh procedures under tolerance TO1 but not less than TO2
Number of weigh procedures under tolerance TU2
Number of weigh procedures for sorting (bad), greater than TO2 or less then TU2
Tolerance evaluation is based on the total emptying amount (total 1) for operating
modes with totalizing (AWI totalizing and AWI gravimetric big bag).
5.21.4 DR 32 - Set weight
The momentary set weight for automatic operation.
In operating modes with totalizing (AWI totalizing and AWI gravimetric big bag), the
set weight corresponds to the emptying amount.
5.21.5 DR 32 - Average net weight value
The current average value of the net weight checked for tolerance errors.
For operating modes with totalizing (AWI totalizing and AWI gravimetric big bag),
this is the average value of the emptying amounts.
5.21.6 DR 32 - Standard deviation of net weight from 10
The current standard deviation of the net weight checked for tolerance errors.
For operating modes with totalizing (AWI totalizing and AWI gravimetric big bag),
the standard deviation is the actual emptying amounts checked for tolerance errors
(total 1).
5.21.7 DR 32 - Performance per hour
Performance per hour [e.g. g/h, kg/h or t/h] is determined based on the net weight
of the last weighing procedure and its duration.
This value is irrelevant in the case of operating modes with calibratable total values
(AWI totalizing and AWI gravimetric big bag filling).
5.21.8 DR 32 - Weightings per hour
The number of weigh procedures per hour is projected, based on the duration of
the last weighing cycle for one hour.
SIWAREX FTA
Weighing Functions
5-117