BE RX803, Instruction Manual, Page: 35 / 40

The reading is extremely high
or low. Is the cuff at the same level as
the heart?
Is the cuff wrapped right?
Did you strain your arm/hand
during measurement?
Did you talk or move your arm/
hand during measurement?
Make sure that your posture
is correct.
Wrap the cuff correctly.
Relax during measurement.
Keep quiet and still during
measurement.
Pulse rate is too low or too high Did you talk or move your arm/
hand during measurement?
Did you take a measurement
right after exercise?
Keep quiet and still during
measurement.
Take measurement again after
resting for more than 5 minutes.
The batteries run down quickly. Faulty batteries are used. Suggest to use alkaline batter-
ies of known manufacturers.