UBTC UGS 54509 Instructions page 86

Error Indicators
The following symbol will appear on the display when
measuring abnormal.
Symbol Cause
The course of infla-
ting appears error.
When measurement
fails.
Pressurization is
over 300mmHg.
When the batteries
power are too low.
Correction
1. Wrap the cuff
correctly and
tightly.
2. Inflate over again
after ensuring.
1. Do not move
your arm and
body and keep
quiet.
2. Measure over
again according
to correct way.
Read user manual
carefully and re-test
properly.
Replace all of the
worn batteries with
two new ones.