Troubleshooting - A&D UB-511 Instruction Manual

Wrist digital blood pressure monitor
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Problem
Nothing appears in the
display, even when the
power is turned on.
The cuff does not
inflate.
The unit does not
measure.
Readings are too high
or too low.
Other
Note: If the actions described above do not solve the problem, contact the dealer. Do not attempt to open or repair
this product yourself, as any attempt to do so will make your warranty invalid.

Troubleshooting

Possible Reason
Batteries are drained.
Battery terminals are not in the correct
position.
Battery voltage is too low.
(LOW BATTERY mark) blinks. [ If the
batteries are drained completely, the mark
does not appear.]
The cuff is not fastened properly.
You moved your arm or body during the
measurement.
The cuff position is not correct.
The value is different from that measured at a
clinic or doctor's office.
Replace all batteries with new ones.
Reinstall the batteries with negative and
positive terminals matching those indicated on
the battery compartment.
Replace both batteries with new ones.
Fasten the cuff correctly.
Make sure you remain very still and quiet
during the measurement.
Sit comfortably and still.
Raise your hand so that the cuff is at the same
level as your heart.
If you have a very weak or irregular heat beat,
the device may have difficulty in determining
your blood pressure.
See "Why measure blood pressure at home?".
Remove the batteries. Place them back
properly and try measurement again.
English 14
Recommended Action

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