BIOS W100 Instruction Manual - 3.2C Fitting The Wrist
• With repeated measurements, blood accumulates in the arm, which can lead to false results.
Consecutive blood pressure measurements should be repeated after at least a 15 second pause
or after the arm has been held up in order to allow the accumulated blood to flow away.
3.2C Fitting the Wrist
a) Remove all accessories (watch, bracelet, etc.) from your left wrist. If your physician has
diagnosed you with poor circulation in your left arm, use your right wrist.
b) Roll or push up your sleeve to expose the skin.
c) Apply the cuff to your left wrist with your palm facing up and the LCD display facing you.
d) Fit the cuff comfortably but not too tight. The cuff will cover a wrist diameter of 13.5 to 21.5 cm
(5.25 to 8.5 inches).
e) IMPORTANT: Support your arm in a relaxed position and ensure that the instrument is at the
same height as your heart. You can use a rolled up hand towel or the storage case.
Measurement
Reading
becomes
lower
Measurement
Reading
becomes
higher
Incorrect
Correct
Measurement
position
Correct
f) Remain seated in a comfortable room temperature for at least 5 minutes, then start the
measurement.
g) Press the ON/OFF button to start the measurement.
h) The cuff will now pump up automatically. Relax, do not move and do not tense your arm muscles
until the measurement is displayed. Breathe normally and do not talk.
i) When the correct pressure is reached, the pumping stops and the pressure falls gradually. If the
required pressure was not reached, the instrument will automatically pump some more air to the cuff.
j) During the measurement, the heart symbol flashes in the display and a beep sounds every
time a heartbeat is detected.
k) The result, comprising the systolic (7) and the diastolic (8) blood pressure and the pulse (9) is
displayed and longer beep is heard. See section 3.2 about the LCD screen for explanation of the icons.
l) Remove and switch off the monitor and enter the result in the blood pressure log book (go to
www.biosdiagnostics.com to download a free log book).