The automatic vacuum regulation can keep the negative pressure stable in a control range Δp
of 20 mbar. By means of the slider (AU1) the control range can be shifted in the desired
negative pressure range.
In order to relocate the control range Δp in a negative pressure range (p3) as high as
possible, slide the slider (AU1) completely over the elongated hole (AU2) of the automatic
vacuum regulation.
To relocate the control range Δp in a negative pressure range (p1) as low as possible, leave
the elongated hole (AU2) of the automatic vacuum regulator completely open.
In between, the negative pressure range (p2) can arbitrarily being set continuously using the
slider.
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