Omron 5 Series Instruction Manual page 15

Irregular heartbeat symbol
Appears when irregular rhythm is detected 2 or more times
during a measurement. The symbol with the number
appears as below:
Irregular heartbeat is detected 2 times:
Irregular heartbeat is detected 3 times or more:
An irregular heartbeat rhythm is defined as a rhythm that is
25 % less or 25 % more than the average rhythm detected
or
while your monitor is measuring blood pressure.
J
Long
Short
Irregular Heartbeat
Normal Heartbeat
Irregular heartbeat symbol may be displayed when the
monitor detects arm movements. Refer to section 6 for more
information.
If it continues to appear, we recommend you to consult
with and follow the directions of your physician.
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