AfiMilk MPC 3, Руководство по установке

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AfiMilk MPC Installation Manual
55
First Time Operation
Chapter
7
ACR Parameters
Afimilk MPC removal mechanism is based on a cyclic counter integrated in its embedded
program. This counter starts counting when the meter is in milking mode and zeroes every
time milk is dumped into the milk line. Thus, if milk flow stops OR if flow rate drops below
the desired level, milking stops automatically. Six parameters are related to cluster
removal process
-
Pre-Milk Time
- Cows start letting down their alveoli milk after stimulation. Thus, depending on
udder stimulation, milk flow rate may be slower after cluster attachment than during the
main phase of milking. Pre-Milk time is the time at the beginning of milking during which
ACR is NOT activated. Thus,
determines the minimum time the cluster is attached.
The value set for is a multiplication of 10sec. therefore, if a value of 12 is set, pre-milk
time of 120 seconds (two minutes) is the minimum time of milking.
-
Removal Delay
- The value of cyclic counter for removal (as explained above) determines the milk
flow rate at which milking stops. When the flow rate of milk from the cow decreases, the
Milk Meter empties at greater intervals. determines the maximum time allowed
between two consecutive milk dumps. If the time elapsed from the last milk discahrge is
longer than , milking stops. As the graphic presentation below illustrates, the milk
discharge pulses (blue columns) are more frequent during the main phase of milking. The
gaps between pulses opens until time is longer than
F2
threshold and that is when
removal occures.
0
0.1
0.2
0.3
0.4
0.5
0.6
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45
Attachment
F1 Delay
Peak Flow Removal
Removal
Delay – F2
Low Flow