Bosch+Sohn BoSo Medicus Smart User Instructions page 61

Error messages
Cause of Err 9 message:
Internal Error
Display:
Troubleshooting:
Remove the batteries and briefly press
START button. Put the batteries back
into the monitor. If the error persists,
return the instrument for repairs to
the manufacturer.
Troubleshooting:
Repeat measurement recommended,
holding the arm absolutely still.
If the symbol appears again, even
with the arm held still, this may be an
indication of an irregular heartbeat.
Please discuss this with your doctor at
your next visit.
EN
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