• If the arm artery lies considerably lower (higher) than the heart, an erroneously higher (lower) blood-
pressure will be measured! (Each 15 cm difference in height results in a measurement error of
10 mmHg!)
• Cuffs that are too narrow or too short result in false measurement values. Selecting the correct cuff is
of extraordinary importance. The cuff size is dependent upon the circumference of the arm (measured
in the centre). The permissible range is printed on the cuff. If this is not suitable for your use, please
contact your dealer. Note: Only use clinically approved Original-Cuffs!
• A loose cuff or a sideways protruding air-pocket causes false measurement values.
• Measurements should not occur soon after each other, since otherwise, the results will be falsified.
Wait therefore for several minutes in a relaxed position, sitting or lying, before you repeat a
measurement.
5.3. Fitting the cuff
a) Push the cuff over the left upper arm so that the tube
points in the direction of the lower arm.
b) Lay the cuff on the arm as illustrated. Make certain
that the lower edge of the cuff lies approximately 2 to
3 cm above the elbow and that the rubber tube leaves
the cuff on the inner side of the arm.
Important! The mark (ca. 3 cm long bar) must lie
exactly over the artery which runs down the inner
side of the arm.
c) Tighten the free end of the cuff and close the cuff
with the closer.
d) There must be no free space between the arm and
the cuff as this would influence the result. Clothing
must not restrict the arm. Any piece of clothing which
does (e.g. a pullover) must be taken off.
e) Secure the cuff with the closer in such a way that it
lies comfortably and is not too tight. Lay the arm on
the table (palm upwards) so that the cuff is at the
same height as the heart. Make sure that the tube is
not kinked.
Comment:
If it is not possible to fit the cuff to the left arm, it can
also be placed on the right one. However all
measurements should be made using the same arm
6
2-3 cm
tube
