DeLaval MM27BC, Профилактическое обслуживание

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No 4 Calibration
No 4 Calibration No 4 Calibration
No 4 Calibration
Required tools:
25-–30 litre bucket.
Bucket cover with two nipples, milk and
vacuum.
Rubber milk tube 50-–80 cm. length, de-
pending on the distance between the
MM27BC outlet to the nipple on the bucket.
Electronic scale, accuracy ± 5 g. (Enter
values in grams)
Calibration routine:
Note! Note! Note! Note! After one week's use of the milk meters
or after 30 milked cows per milk meter, the
accuracy should be checked and the bias cor-
rected.
Check the air bleeds before calibration.
3.7. 3.7. 3.7. 3.7. If the Cxxx Cxxx Cxxx Cxxx values are lower than 80,
a RECAL of the MM27BC can option-
ally be done, although NOT man-
datory. After RECAL the meter will
with display Cxxx
Cxxx Cxxx
Cxxx again but the Cxxx
Cxxx Cxxx
Cxxx
values will be between 98 and 100.
3.8. 3.8. 3.8. 3.8. Insert the test probe into the MM27BC
channel. After a few seconds the
meter should display a PASS
PASS PASS PASS mes-
sage and two numbers. The two
values represent the flows measured
by the meter. The lower number is
the minimal flow and the higher the
maximal flow measured. The numbers
shown are 4 digits and usually be-
tween 3.000 and 4.000 kg per minute.
3.9.
3.9. 3.9.
3.9. Write the minimal and maximal flows
on the “DeLaval milk meter MM27BC
Periodic routine test form” under Cur-
Cur- Cur- Cur-
rent MinF rent MinF rent MinF rent MinF and Current MaxF Current MaxF Current MaxF Current MaxF col-
umns.
3.10. 3.10. 3.10. 3.10. During the routine test, the ratio be-
tween the Current MinF Current MinF Current MinF Current MinF and MaxF MaxF MaxF MaxF
to the Reference MinF
Reference MinF Reference MinF
Reference MinF and MaxF
MaxF MaxF
MaxF
should be calculated.
additional cleaning should be re-
placed.
Reporting of the results
The results of the periodic checking
of the milk meters will be reported
to those concerned, the farmer, the
main supplier and to the national milk
recording organisation.
Cleaning tool:
Insert the tool brush into the
MM27BC channel to remove dirt.
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DeLaval milk meter MM27BC DeLaval milk meter MM27BC DeLaval milk meter MM27BC DeLaval milk meter MM27BC
161 Preventive maintenance
8 (22) © DeLaval 2012.All rights reserved.
Printout from Memoviewer 11/6/2012.