15
Troubleshooting
LCD shows “Er 3”
LCD shows “Er 4”
Pneumatic system blocked or cuff is too
tight during inflation.
Measure again after 5 minutes. If the monitor
is still abnormal, please contact the local
distributor or the factory.
Position the cuff correctly and try again.
Pneumatic system leakage or cuff is too
loose during inflation.
LCD shows “Er 6”
Over 3 minutes while pressure above
15 mmHg.
LCD shows “Er 5”
Inflation above 300mmHg.
LCD shows “Er 7”
EEPROM accessing error.
LCD twinkling all
Device parameter check error.
LCD shows “Er 9”
MCU self-verity error.
LCD shows “Er A”
Span error.
LCD shows “Er b”
EEPROM backup error.
