AfiMilk MPC 3, Руководство по установке

Страница: 78 / 116

AfiMilk MPC
Installation Manual 78
Chapter
7
First Time Operation
Regulatory meter tests and Calibration
Local authorities may require periodic accuracy checks of the milk meters, mainly for
herd book approval. Such test is performed by collecting the milk each cow gives into a
bucket, measuring it and comparing to the reading of the milk meter. Then, statistical
deviation calculations are done to indicate the accuracy level of the device.
It is very important to carry out a proper scaling procedure to ensure accurate scaling in
accordance with regulations.
To carry out the scaling procedure, an electronic weigh scale and a few milk buckets are
required. This chapter describes the correct procedure of scaling and statistical
calculations. If deviations in measurements are found, correct those by adjusting G&H
values as described above.
Collecting the Milk into a Milk Bucket
Per international regulations the following rules are adopted for scaling:
o
Multiple attachments measurements are not included in the statistics.
o
Only milking claw air admission is allowed. Tests may not be valid if liners cracks
or piping holes allow additional air intake by the system. Furthermore, tests
where liner slippage or large udder causing squawks occurs are also rejected.
o
The Milk Meter reading should be taken after the last dump of milk (milk dump
after removal).
o
For each reading, list milk meter reading vs. actual milk weighed.
o
At least three valid readings are required for calculating milk meter accuracy.
To ensure proper measurements, see that the following restrictions are kept:
o
The collecting bucket must be placed below the meter outlet port.
o
The hose connecting the Milk Meter to the bucket is situated correctly in a
downward slope towards the bucket.
o
The hose connecting the Milk Meter to the bucket has no pulling or pushing
pressure on the outlet of the Milk Meter.