Jumper HWA21 - Abnormal Phenomena and Handling

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Indoor temperature, environment, noise, user's body position, speech or
exercise might affect the blood pressure measurements. The body
movement, magnetic field and improper wearing of wrist cuff and
sensor will affect the measurement as well.
* When the measurement is abnormal, the following symbols will
appear. Please use the correct method for measurement.
LCD display information
Reason / Meaning
Err is displayed in the
high-pressure area,
1 is displayed in the
low-pressure area
The leakage is too fast or the pulse
signal is too weak. Please check the
cuff, tie it up and try again
Err is displayed in the
high-pressure area,
2 is displayed in the
low-pressure area.
The blood pressure signal cannot
be detected due to too much noises.
Please remove the noise sources
and measure again
Err is displayed in the
high-pressure area,
The test result is abnormal. Please
measure again
Abnormal phenomena and handling