5.4. Measuring procedure
After the cuff has been appropriately positioned, the measurement can begin:
a) Switch on the instrument by pressing the O/I button. The
tube should not yet be attached to the instrument. The
following appears in the display for 2 seconds: (Diag.). A
short be-be-beep follows to indicate that the instrument
has equilibrated with the pressure of the surroundings and
the measurement can therefore begin.
A«0» is shown in the display.
b) Plug the T-connecting piece or the free end of the tube into
the left-hand side of the instrument.
c) Grasp the pump ball with your free hand and inflate the
cuff to a pressure at least 40 mmHg higher than the
expected systolic pressure. If you do not know the value of
this pressure, inflate to a value of approx. 160–180 mmHg.
The cuff pressure is shown continuously on the LCD.
d) After the inflation process lay down the pump ball and remain
in a quiet and relaxed sitting position. The measurement now
proceeds on its own. If no measurement takes place and all
that appears in the display is a flashing, upwards pointing
arrow, see below under «Inflate further». When the
instrument detects a pulse, a heart symbol in the display
starts to flash and a beep is heard for every heart beat.
e) When the measurement has been concluded, a long peep
tone sounds. The measured systolic and diastolic blood-
pressure values and the pulse frequency are now displayed.
The cuff pressure can now be quickly released by pressing
the release valve at the pump ball.
5.5. Inflating further
If the cuff is not inflated sufficiently, the measurement is
broken off after a few seconds and a flashing arrow pointing
upwards appears in the display. It is then necessary to
inflate further to at least 20 mmHg higher than the previous
value. The instruction to inflate further can appear several
times if the pressure is still not sufficient.
Attention:
If the cuff is inflated too far (over 300 mmHg), «HI» appears
in the display and a warning signal is sounded. The cuff
pressure must then be immediately released using the
quick-release valve) at the pump ball)! As soon as the cuff
is inflated sufficiently and the measurement is proceeding,
continue as described under points d–e.
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