Sophysa POLARIS SPV-140 Gebrauchsanweisung Seite 15

4) Positioning the Compass and Reading the Pressure
Hold the Locator with one hand.
Place the Compass in the housing provided on the Locator using the guide pins:
align the lines on the Compass with the pressure values engraved on the Locator.
On the Locator read the operating pressure shown by the needle on the Compass.
Figure 19
P :
RECAUTION
W
HEN READING THE POSITION OF THE PRESSURE SETTING
ANY OTHER FERROMAGNETIC OBJECT IS NOT WITHIN A RADIUS OF
THAT A FALSE READING IS NOT INDUCED BY THE INFLUENCE OF AMBIENT MAGNETIC FIELDS
5) Orientation of the Locator
It is recommended that the positioning of Locator in relation to the axis of the valve
is fi ne tuned as follows:
Remove the Compass and insert the Magnet into the Locator.
Move the green marker on the Magnet to face the initial position of the pressure
setting (turn the Magnet in the Locator if necessary).
Figure 20
Slide Magnet back and forth quickly along the axis of the valve rotor current position
as just determined in order to unlock the rotor, then return it to a position centered
in the Locator.
Figure 21
Turn the Magnet slowly, until it goes slightly past the lowest or highest position
(No. 1 or No. 5) whichever is furthest away from the initial position.
, M
MAKE SURE THAT THE AGNET OR
0.5 C
M AROUND THE OMPASS SO
.
15
Figure 22
Remove the Magnet vertically from the Locator, then insert the Compass into
the Locator as described in Step 4.
If the adjustment has been performed correctly, the Compass will confi rm that
the lowest or highest position selected has been reached.
If the Compass needle does not point exactly to this operating pressure value
(No. 1 or No. 5), slightly adjust the orientation of the Locator (rotation) in order to
center the Compass needle on the corresponding mark.
If the needle has not moved at all, reattempt the adjustment process after repeating
the back and forth motion with the Magnet.
This sequence also makes it possible to confi rm that the valve can be adjusted
(unlocking and rotation of the rotor).
6) Setting the pressure
Hold the Locator fi rmly in one hand in the precise position defi ned in Steps 3 and 5,
until the last step in the adjustment process is completed.
Remove the Compass and insert the Magnet into the Locator.
Make sure the green marker on the Magnet is aligned with the lowest or highest
pressure in Step 5 (turn the Magnet in the Locator if necessary).
Move the Magnet quickly backwards and forwards along the axis of the lowest or
highest position in Step 5. Then replace it correctly in the center of the Locator.
Figure 23
Turn the Magnet slowly in the opposite direction until the new position chosen as
the operating pressure for the implanted valve is reached.
Figure 24
Remove the Magnet vertically from the Locator to ensure eff ective re-locking of
the valve rotor at the new operating pressure position.