MIETHKE M.blue Mode D'emploi page 22

EN | INSTRUCTIONS FOR USE
There are two scales on the scale ring. The
opening pressure of the M.blue gravitational
unit is set to the blue marked adjustment range
of 0 to 40 cmH O of the inner scale.
2
Fig. 11: 1. M.blue scale
Inside: M.blue scale of 0 to 40 cmH
sure of the gravitational unit in the picture example is
16 cmH O)
2
CAUTION
The M.blue plus Compass should be placed
centrally over the valve, if possible; otherwise
incorrect determination of the opening pres-
sure may occur.
M.blue plus Compass reacts sensitively to
external magnetic fields. In order to rule out
unwanted interactions, the M.blue plus Adjust-
ment Ring should not be in the immediate vicin-
ity of the M.blue plus Compass when the open-
ing pressure is being determined. We recom-
mend a minimum distance of 30 cm.
NOTE
Possible air bubbles inside the Compass do
not affect its functionality.
3. Adjustment process
In order to adjust the opening pressure, the
compass is opened, but without changing the
position of the scale ring. The adjustment ring is
now inserted into the scale ring in such a man-
ner that the line marking points to the desired
value on the scale of the scale ring (fig. 12).
22
O (opening pres-
2
Fig. 12: Insertion
1. Adjustment Ring 2. Scale Ring
The opening pressure of the M.blue gravita-
tional unit uses the adjustment range of 0 to 40
cmH O of the blue inner scale.
2
Fig. 13: Adjustment of the gravitational unit of M.blue
(in the picture example to 32 cmH
By applying slight pressure with the index fin-
ger to the valve diaphragm located in the centre
of the adjustment ring and under the skin, the
rotor brake is released and the opening pres-
sure of M.blue is changed to the desired value
(fig. 14).
Fig. 14: Adjustment
M.blue plus Adjustment Ring
M.blue
of the Adjustment
O)
2
using
®
Ring
the