Jumper HWA21 - Page 18

- 17 -
3 is displayed in the
low-pressure area
Err is displayed in the
high-pressure area,
P is displayed in the
low-pressure area.
The inflation fails. Please check the
cuff, tie it up and try again.
HI is displayed in the
low-pressure area
The inflation pressure is greater
than 307±8 mmHg ( 41 kPa±1
kPa ), Please measure again.
*Trouble shooting
Abnormal
phenomenon
Item to be checked
Measure
No display by
pressing the
power switch
Check whether the
battery level is low
Replace the
batteries with new
ones .
Are the positive and
negative poles of the
batteries reversed?
Install in
accordance with
the positive and
negative poles of
the batteries
Multiple
measurement
failures or
abnormally high
(or low)
measurements
The wrist cuff does not
remain level with the
cardiac position
Measured with the
correct posture
The wrist cuff is not
rolled
Roll the wristband
correctly
Talk or move the arm
during the
measurement
Keep quiet, relax
your body, and
re-measure
The rolled up clothes
Unressing the arm