Welch Allyn OSZ 4 - User Manual - Manual (Page 20)

12 Semi-Automatic Blood Pressure Monitor Welch Allyn
3. Grasp the bulb with your free hand and
inflate the cuff to a pressure at least 20
to 30 mmHg higher than the expected
systolic pressure. If you do not know
the value of this pressure, inflate to a
value of approximately 160 to 180
mmHg. The cuff pressure is shown
continuously on the LCD.
4. After the inflation process, lay down
the bulb 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, upward pointing arrow, see
below under «Inflating further». When
the instrument detects a pulse, a heart
symbol in the display starts to flash and
a beep occurs for every heart beat.
5. When the measurement has been
concluded, a long tone will sound. The
measured systolic and diastolic blood
pressure values, as well as the pulse
rate, will be displayed. The cuff
pressure can then be released quickly
by pressing the release valve at the
bulb.