Herd Navigator 100 Sampling Workflow - DeLaval Herd Navigator precision analytics 100 Instruction Book

DeLaval Herd Navigator™ precision analytics 100
General description
A
B
Fig. 8: The sampling workflow for Herd Navigator
100.
A: SSO pump
B: Optical Fluid sensor
C: Peristaltic Milk Pump
D: Diluent
E: Peristaltic Diluent Pump
F: Mixing Chamber
G: Needle
H: Stick
© DeLaval 2021.
2021-05-10, Version 3
D
C
E
F
G
H
18 (44)
3 Herd Navigator 100 sampling
workflow
The Herd Navigator 100 sampling routine is per-
formed in the VMS when the cows are milked.
1. Herd Navigator 100 receives milk from the
VMS controller via the single sample out-
take pump (SSO) (A).
2. The peristaltic milk pump (C) uses the new
milk to clean the tube from milk residues
from the previous sample and saves milk
for the new analysis. The needle (G) is in
the drain position and the first milk goes to
the drain.
3. The peristaltic diluent pump (E) runs at the
same time as the peristaltic milk pump (C).
The speed of the pumps is set by a mixing
ratio.
4. The mixing chamber (F) mix milk and
diluent (D).
5. The pumps stop, and needle (G) and stick
(H) move to the dose position.
6. The pumps start again and a dosage of 45
microliters of mixed milk and diluent is
applied to the stick (H).
7. A chemical reaction takes place in the stick
(H) and it is coloured.
8. The incubation time (around 5.5 min)
begins.
9. The stick (H) moves to the optical reader
which scans the intensity of the stick colour.
The measurement of the progesterone
concentration is then transferred to the bio-
model software.
10.The peristaltic milk pump (C) runs to empty
the tubes from residues and sends it to the
drain (the needle is in drain position).
11.The biomodel processes the analysis
results and communicates them to the Del-
Pro farm manager.
Cleaning
The Herd Navigator 100 is cleaned in the ordi-
nary VMS cleaning/rinse. During cleaning, the
needle is in the drain position throughout the
whole process.
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