Icar Afimilk MPC version 4, Руководство по установке, Страница: 22 / 24

22 AfiMilk MPC Installation Manual
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The hose connecting the Milk Meter to the bucket is situated correctly in a
downward slope towards the bucket.
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The hose connecting the Milk Meter to the bucket has no pulling or pushing
pressure on the outlet of the Milk Meter.
7.3.3.2 Statistical Accuracy Calculation
After scaling milk weights for all the milk meters in the parlor, statistical accuracy
calculation is performed for each milk meter.
Statistical calculation is done for each reading and corresponding weigh scale measurement
for calculating the difference as a percentage value between the reading of the milk meter
and the actual milk weighed.
The following formula is used for calculating difference between the milk meter reading and
the milk weight.
Average all of the DIF% deviations for each Milk Meter.
Change the value of "
G
" parameter per calculated average deviation. If the result is negative
(Milk meter reading is lower than the actual weight), the calculated adjustment value needs
to be added to the value of
G
. If the adjustment is positive, the calculated value needs to be
subtracted from the value of
G
.
General adjustment calculation →%Dev X (– 2.5) = Adjustment value
Example : if the actual value of G in the milk meter is 55 and the measured deviation -4%
(Milk meters show 4% less than actual weight) , modify the “G” parameter value
by:
-4 X (-2.5) = +10 to 65
Fine Tune Calibration
After basic calibration of G parameter, it might happen that specific meters are deviating
and need further adjustment. In that case the H parameter can be used.
The procedure of calibrating with H parameter is basically the same procedure as calibrating
with G parameter. In this case change the e value of
H
parameter per calculated average
deviation.