Dr.Frei M-500A, User Manual

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17
EN
TROUBLEShOOTINg
1. If no display appears after pressing O/I button:
POSSIBLE CAUSE WhAT TO DO
Batteries exhausted. Replace the batteries.
Batteries incorrectly installed or
absent.
Check that the batteries are cor-
rectly installed.
2. If the heart rate is higher/lower than user’s average:
POSSIBLE CAUSE WhAT TO DO
Movement during measurement Repeat measurement
Measurement taken just after
exercise
Rest at least 30 minutes before-
hand
3. If the result is higher/lower than user’s average measurement:
POSSIBLE CAUSE WhAT TO DO
May not be in correct position
while measuring.
Adjust to the correct position to
measure.
Blood pressure naturally varies
from time to time.
Keep in mind for next measure-
ment.
4. If the cuff inflates again while measuring:
POSSIBLE CAUSE WhAT TO DO
Cuff is not fastened. Fasten the cuff again.
If user’s blood pressure is higher than the pressure the device has in-
flated, the device will automatically increase the pressure and start to
inflate again. Stay relaxed and wait for the measurement.
CARE AND MAINTENANCE
To avoid the monitor attracting dirt, dust or other contaminants, wash and
dry your hands thoroughly before use.
Cleaning
• To clean the monitor exterior, wipe it with a cloth moistened with tap
water or a mild cleaning agent, then dry the device with a soft dry cloth.
• Do NOT flush with water.
• Do NOT use organic solvents to clean the monitor.
• Do NOT wash the pressure cuff.
• Do NOT iron the pressure cuff.
monitor storage
• Storage condition: -20°C to 55°C (-4°F to 131°F), below 95% relative
humidity.