Measurement Principle
This product uses the Oscillometric Measuring method to detect blood pressure.
Before every measurement, the product establishes a “zero pressure” equivalent
to the air pressure. Then it starts inflating the arm cuff, meanwhile, the product
detects pressure oscillations generated by beat-to-beat pulsatile, which is used
to determine the systolic and diastolic pressure, and also pulse rate.
The product also compares the longest and the shortest time intervals of
detected pulse waves to mean time interval then calculates standard deviation.
The product 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%.
• Open the battery cover.
• Install the batteries by matching
the correct polarity, as shown.
• Replace the cover.
Installing and Replacing the Batteries
Remove batteries if the product is not likely to be used for some time.
The old batteries are harmful to the environment, do not dispose them with other daily trash.
Remove the old batteries from the product and follow your local recycling guidelines.
CAUTION
Replace the batteries when:
the display shows .
the display dims.
the display does not light up.
Do not dispose of batteries in fire. Batteries may explode or leak.
Always use the correct battery
type (4 x AAA-sizes batteries).
6
BEFORE YOU START
Summary of Contents for NOTMB1491
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