Operation Manual

6
4. Inhale completely and hold your breath for a
moment.
5. Cover the mouthpiece tightly with your lips.
6. Blow into the measuring tube as hard and as
fast as you can.
7. A long beep confirms that the result is
recorded. The peak flow value is displayed
for about 3 seconds, then the FEV
1
is shown.
Afterwards the monitor is ready for a new
measurement which is indicated by two short
beeps.
After the measurement, a small arrow in
the display will indicate if the reading is in
the green, yellow or red range. This device
automatically stores the highest (best)
value to date, with the green range being
any reading above 80% of this best value.
A reading in the yellow range indicates a
reading between 60% and 80% of the best
value. A reading in the red range indicates
a reading below 60% of the best value.
However, these ranges can be set manually
within the software. Please consult your
doctor about the range indication.
8. It is recommended to perform three or more
measurements sequentially.
9. After each measurement, at first the actual
reading is shown in the display and then
it switches automatically to the highest
reading of your current measurement session.
Please note that the monitor only saves
the highest reading from switching the
device on until switching it off.