Troubleshooting - Omron HEM-7221 Instruction Manual

HEM-7221-C1_C_M.book Page 22 Monday, November 22, 2010 1:19 PM
4. Troubleshooting and Maintenance
4.2

Troubleshooting

Problem
The reading is
extremely low (or high).
Arm cuff pressure does
not rise.
Arm cuff deflates too
soon.
Cannot measure or
readings are too low or
too high.
Nothing happens when
you press the buttons.
22
Cause
Arm cuff not applied
correctly.
Movement or talking
during measurement.
Clothing is interfering
with the arm cuff.
The air tube is not
securely connected into
the main unit.
Air is leaking from the
arm cuff.
The arm cuff is loose.
The arm cuff has not
been inflated sufficiently.
The batteries are empty.
The batteries have been
inserted incorrectly.
Remedy
Apply the arm cuff
correctly.
Refer to section 3.1.
Remain still and do not
talk during measurement.
Refer to section 3.3.
Remove any clothing
interfering with the arm
cuff.
Refer to section 3.1.
Make sure that the air
tube is connected
securely.
Refer to section 3.1.
Replace the arm cuff with
a new one.
Refer to Chapter 5.
Apply the cuff correctly so
that it is firmly wrapped
around the arm.
Refer to section 3.1.
Inflate the cuff so that it is
30 to 40 mmHg above
your previous
measurement result.
Refer to section 3.3.
Replace the batteries
with new ones.
Refer to section 2.1.
Insert the batteries with
the correct (+/ -) polarity.
Refer to section 2.1.