Exhaust
Velocity
1. The exhaust velocity is Me rate of
gradual pressure drop from the pres-
sure applied
manually
using the rubber bulb.
2, The exhaust condition is displayed in the right portion of the display
from the time of pressurization until the measurement mark starts
flashing.
3. This unit is adjusted so that the exhaust velocity is 2-5 mmHg per
second at 150 mmHg.. Note: IF EXHAUST VELOCITY IS NOT PROPER,
CORRECT MEASUREMENTS ARE NOT POSSIBLE.
Exhaust Velocity Adjustment
. Perform
this adjustment procedure
if the exhaust velocity is not within the
proper
range as described above.
l
Before exhaust
cover
must be removed.
velocity adjustment can be made, small plastic screw
To do this, hold area
in the figure, use a small pm or nee-
dle, insert into tiny hole on top and flip off
s c r e w
cover, then proceed to Step 1
1 . A p p l y t h e a r m C u f f t o t h e l e f t a r m a n d
pressurize to the pressure
6 0 mmHg above your
suspected systolic
pressure Hold the area
in
and insert a screwdriver into groove
2 ,
If the exhaust
velocity is too fast,
justing screw one fraction of a turn to the
left- and if it is too slow, turn adjusting
screw one fraction
of a turn to the right,
so that the valve shown in the right por-
tion of
the
display is in
the range 2-5
mmHg/s.
3. When
the adjustment is completed.
reduce the pressure
and recheck. If the
adjustment
is not
proper
after one try,
repeat
several times
NOTE:
ADJUSTMENT MUST BE MADE
WHILE
THE CUFF IS
EXHAUSTING.
Exhaust velocity will differ slightly de-
pending upon the size of the arm and
Ad’ust
ma
.
the method of winding the cuff.
Summary of Contents for 7621
Page 1: ...Model 7621 Instruction Manual 1 ...
Page 4: ...Identification of Parts ...
