Victoria Arduino EAGLE ONE PRIMA

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7.6.2 REMOVAL OF THE
PRE INFUSION RESTRICTOR
Attention must be given to the restrictor
at the exit from the flowmeter. It is called
pre-infusion restrictor, since its size effects
the pre-infusion time: bigger is the size,
shorter is the pre-infusion.
The default restrictor is 0.5 mm, welded in
the fitting, and an optional one of 0.8 mm is
available.
To clean it, proceed as it follows:
1
Follow the first 4 steps of the paragraph
7.6.1.
2
If the restrictor is welded in the fitting, it is
only possible to clean it with a needle.
If the restrictor is not welded, it is possible
to remove it utilizing a 4 mm Allen key.
7.6.3 REMOVAL OF THE
NOT-RETURN VALVE
To remove the not return valve, proceed as
it follows:
1
Follow the first 4 steps of the paragraph
7.6.1.
2
Utilizing a 13 mm and 14 mm wrenches,
remove the fitting.
NOTE
We recommend changing the not return
valve located down-stream of flowmeter
at least once a year.
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