Troubleshooting Guide; Technical Specifications - Beurer BC 57 Mode D'emploi

• No component can be maintained by user in
the monitor. Please contact the customer ser-
vice in case of questions.
• The cuff integrity is maintained after 1,000
open–close cycles of the closure.

12. Troubleshooting Guide

• In case of faults, '
play, where ' _ ' is a number from 0-8. Error mes-
sages may appear if:
• Systolic or diastolic pressure could not be mea-
sured ( )
• Systolic or diastolic pressure was outside the
measurement range (' ' or ' ' appear on the
LCD Display)
• The cuff is fastened too tightly or loosely (
• Pressure is higher than 300 mmHg (
• Measurement time exceeds 160 seconds (
• Other system error (
• The data could not be sent via Bluetooth
' appears in the LCD Dis-
)
, , , )
(
®
In such cases, repeat the measurement. Do not
move or speak. If necessary, replace the batter-
ies.

13. Technical Specifications

Model
Type
Measurement
method
Measurement
range
Display accuracy Systolic ± 3 mmHg,
)
)
)
28
BC 57
KD-721
Oscillometric, non-invasive
blood pressure measurement
on the wrist
Cuff pressure 0-300 mmHg,
Systolic 60-260 mmHg,
Diastolic 40-199 mmHg,
Pulse 40-180 beats/minute
Diastolic ± 3 mmHg,
Pulse ± 5 % of the value shown