How Ua-789 Works; Before You Start - A&D Medical LifeSource UA-789AC Guide D'instructions

How UA-789 Works

LifeSource blood pressure monitors are easy to use, accurate and
®
digitally display full measurement readouts. Our technology is based on
the "oscillometric method" – a noninvasive blood pressure determination.
The term "oscillation" refers to any measure of vibrations caused by the
arterial pulse. Our monitor examines the pulsatile pressure generated by
the arterial wall as it expands and contracts against the cuff with each
heartbeat. The cuff is inflated until the artery is fully blocked. The inflation
speed is maximized and the pressure level is optimized by the device. The
monitor takes measurements while the cuff is both inflating and deflating.
This results in a faster measurement providing greater comfort to the user.

Before You Start

You must install 4 type AA (1.5 volt) batteries (alkaline batteries
recommended), or use the AC Adapter (see page E-14 for using the
Monitor with AC Adapter) and attach the cuff to the monitor before using
it. To install batteries (or replace them if the "Low Battery" symbol appears
on display), proceed as follows:
1. Remove battery compartment cover by
gently pushing down on arrow and sliding
cover forward.
2. Put in bottom row of batteries first. Place
the batteries in compartment with positive
(+) and negative (–) terminals matching
those indicated in the compartment.
Be sure batteries make contact with
compartment terminals.
3. Replace cover by sliding it into the
compartment and gently pressing into place.
NOTE: Rechargeable batteries will not work with this monitor
E-4