Beurer BM 90 - Manual (Page 23)

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In such cases, repeat the measurement. Ensure that the cuff line is correctly attached and that you do not move
or speak. If necessary, reinsert or replace the batteries.
10. Cleaning and storing the unit
• Clean your blood pressure monitor carefully using a slightly damp cloth only.
• Do not use any cleaning agents or solvents.
• Under no circumstances should you hold the unit under water, as this can cause liquid to enter and damage
the unit.
• When you store the unit, no heavy objects should be placed on top of it. Remove the batteries. The cuff line
should not be bent sharply.
11. Technical specifications
Model no. BM 90
Measurement method Oscillometric, non-invasive blood pressure measurement on the upper
arm
Measurement range Cuff pressure 0–300 mmHg, systolic 30–280 mmHg, diastolic 30–280
mmHg, pulse 40–199 beats per minute
Display accuracy systolic ± 3 mmHg/diastolic ± 3 mmHg/
pulse ± 5% of the value shown
Measurement inaccuracy max. permissible standard deviation according to clinical testing:
systolic 8 mmHg/diastolic 8 mmHg
Memory 60 memory spaces
Dimensions L 140 mm x W 60 mm x H 56 mm
Weight Approximately 471 g (without batteries)
Cuff size 22 to 42 cm
Permissible operating conditions +5°C to +40°C, ≤ 80% relative humidity (non-condensing)
Permissible storage conditions -20°C to +60°C, < 10–93% relative humidity
Ambient pressure: 800–1050 hPa
Power supply 6V (4x 1.5V AAA)
Battery life For approx. 120 measurements, depending on levels of blood pressure
and pump pressure
Radio frequency RF 868MHz
Protection class Internal supply, IPX0, no AP or APG, continuous operation
Classification Application part type B