Omron HEM-9200T Instruction Manual page 25

4.2 Troubleshooting
No power.
No display appears on the monitor.
Measurement values appear too high or
too low.
Problem Cause and Solution
Replace all batteries with new ones.
Check the battery installation for proper
placement of the battery polarities.
Refer to section 2.
Blood pressure varies constantly. Many
factors including stress, time of day, and
how you wrap the cuff, may affect your
blood pressure. Review the section 1.3
and section 3.3.
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