1. General
This instruction manual is intended to assist the user in the safe and efficient
operation of the Be Better™ Automatic Blood Pressure Monitor model RX800.
The device should be used in accordance with the procedures described in this
manual. It is important to read and understand the entire manual, especially
section 2 “Tips on Taking Blood Pressure Measurement.”
This device is intended for the non-invasive measurement of systolic and
diastolic arterial blood pressure and pulse rate in adults age 15 and above.
Principle Of Operation
This device uses oscillometric technology to measure the arterial blood
pressure and pulse rate. The cuff is wrapped around the arm and automatically
inflated by the air pump. The sensor in the device senses weak fluctuation of
the pressure in the cuff produced by extension and contraction of the artery of
the arm in response to each heartbeat. The amplitude of the pressure waves is
measured, converted in millimeters of the mercury column, and is displayed on
the display.
This device cannot provide reasonable accuracy if used or stored in
the temperature or humidity beyond the range stated in the section
“TECHNICAL SPECIFICATIONS” of this manual.
2. Tips On Taking Blood Pressure Measurement
2.1 About Blood Pressure
Blood pressure level is determined in the circulatory center of your brain. Your
nervous system allows the body to adapt or alter blood pressure in response to
different situations. Your body alters your pulse or heart rate and the width of
blood vessels through changes in muscles in the walls of blood vessels.
Your blood pressure reading is highest when your heart pumps or ejects blood.
This stage is called your systolic blood pressure.
