Omron MIT Elite Instruction Manual page 33

Problem
Nothing happens when
you press the buttons.
Other problems.
Cause
The batteries are empty.
The batteries have been
inserted incorrectly.
Press the O/I START button and repeat
measurement.
If the problem continues, try replacing the batteries
with new ones.
If this still does not solve the problem, contact your
OMRON retail outlet or distributor.
5.Handling Errors and Problems
Remedy
Replace the batteries
with new ones.
Insert the batteries with
the correct (+/ -) polarity.
EN
33