Adjusting The Adjustable Dp-Unit; Reading The Pressure Setting From An X-Ray Image - MIETHKE proGAV 2.0 Instrucciones De Manejo

| INSTrUcTIONS fOr USe
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adjustIng the adjustable dP-unIt

Please verify specifi cally before using any tool
for verifying or adjusting the opening pressure:
for the adjustable dP-unit use either the
proGAV 2.0 tools
a)
Fig. 14 a): proGAV 2.0 Compass
b) proGAV 2.0 Adjustment tool
and with a combination of proGAV 2.0 with an
adjustable gravitational-unit, use only proSA
tools
Fig. 15: proSA Adjustment tool
24
readIng the Pressure settIng from
an X-ray Image
The pressure setting of the proGAV 2.0 should
be measured either with the proGAV 2.0 Com-
pass or via X-ray.
The position of the rotor determines and indi-
cates the pressure setting in the X-ray.
The rotor includes four magnets, arranged in
pairs and face to face on top of the rotor, which
are recognizable in the X-ray as four white dots.
Two additional drill holes on one side of the ro-
tor, arranged on the left respectively right side of
the magnets, serve as an additional support for
orientation: the two drill holes are recognizable
as black dots in the X-ray.
b)
The rotor side with the two drill holes can be de-
scribed as the back side of the rotor. The gap of
the two magnets opposite to those on the back
side of the rotor is regarded as the triangle tip.
A triangle is formed by visually connecting the
magnets and the drill holes. The sharp corner of
the triangle indicates the position of the triangle
tip. The direction of the triangle tip indicates the
pressure setting of the valve (see fi g. 16).
inlet indicator
adjustable
Fig. 16:Schematic X-ray image
The triangle tip can occupy any position outside
the region ‚range not adjustable' (fi g. 16). Thus,
the opening pressure of the proGAV 2.0 can be
adjusted in increments of 1 cmh
and 20 cmh
In order to avoid misidentifi cation of the adju-
sted opening pressure in the X-ray image, the
valve is marked with a orientation indicator on
one side (recognizable as a black cut-out in the
X-ray see fi g. 17). On the schematic top view
as in fi g. 16 the valve indication is visible on the
right hand side of the valve's housing.
range
not
O.
2
orientation indicator
triangle tip
O between 0
2