Duronic BPM080, Manual, Page: 12 / 147

12
Installing and Replacing the Batteries
Measurement Principle
• Open the battery cover.
• Install the batteries by matching the correct polarity, as shown.(Always select the
authorized / speci fi ed battery: Four AAA-size batteries).
• Replace the cover.
Replace the batteries whenever the below happens
The shows
The display dims
The display does not light up
CAUTION
Remove batteries if the device is not likely to be used for some time.
The old batteries are harmful to the environment, do not dispose with other daily
trash. Remove the old batteries from the device and follow your local recycling
guidelines. Do not dispose of batteries i n fi re. Batteries may explode or leak.
This product uses the Oscillometric Measuring method to detect blood pressure.
Before every measurement, the unit establishes a “zero pressure” equivalent to the
air pressure. Then it starts in fl ating the arm cuff, meanwhile, the unit detects pressure
oscillations generated by beat-to-beat pulsatile, which is used to determine the systolic
and diastolic pressure, and also pulse rate.
The device also compares the longest and the shortest time intervals of detected
pulse waves to mean time interval then calculates standard deviation. The device
will displays a warning signal with the reading to indicate the detection of irregular
heartbeat when the difference of the time intervals is over 25%.