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PROBLEM POSSIBLE CAUSE SOLUTION
LCD shows low battery
symbol
Low Battery Change the batteries
LCD shows “Er 0”
Pressure system is unstable
before measurement
Don’t move and try again
LCD shows “Er 1” Fail to detect diastolic pressure
LCD shows “Er 2” Fail to detect systolic pressure
LCD shows “Er 3”
Pneumatic system blocked or
cuff is too tight during inflation
Apply the cuff correctly and
try again
LCD shows “Er 4”
Pneumatic system leakage or
cuff is too loose during inflation
TROUBLESHOOTING 2
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