Start of operation
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Measuring System MAK TIGER 3003 Service manual, SA 131128, 10.03.2020
27.3
Setting/adjustment instructions
For ULTRASAMPLER system with flow level meter
27.3.1
Correct installation
In order to guarantee that the Ultrasampler will work properly, all the com-
ponents must be correctly installed and connected.
The following points are of particular importance:
The intake hose should not be longer than 6 m.
At the Screw fitting of the suction hose or at the front of the suction hose
a strainer should be mounted.
No air must be allowed to enter through unsealed points (valves, screw
fittings, etc.).
In front of the Flow Level Meter there must be the longest possible
straight line (
no bends). This flow-calming section must be at least three
times as long as the nominal pipe width.
The intake cannula must be correctly fitted.
Only BARTEC pump hoses may be used.
The sampler must be fitted at the highest point of the piping system to
prevent milk residues from remaining in the system and affecting
subsequent samples.
The injection needle must be positioned vertically over the middle of the
bottle (stopper).
27.3.2
Initial operation
The following instructions and conditions must be heeded when putting the
system into operation for the first time.
Maximum throughput is subject to intake quantity
The ULTRASAMPLER specifications and technical data stipulate the maxi-
mum throughput subject to the intake quantity.
The ULTRASAMPLER has a peristaltic pump therefore its maximum deliv-
ery volume is limited by physical and mechanical variables (e.g. the viscosity
of the hose or the maximum acceleration of the stepper motor). The stepper
motor needs 400 steps for one revolution where the maximum frequency is
10 kHz.
The maximum rotational speed is therefore as follows:
10 kHz = 25 revolutions
400 Hz s
At normal pressure (approx. 0.3 bar), the pump delivers about 0.27 ml per
revolution (which corresponds to the hose calibration factor = 270).
