YCO-1093-02-02
Troubleshooting & Error Messages
Problem
Possible Cause
Solution
The display is blank.
Are the batteries
exhausted?
Replace the batteries
Are the batteries installed
with the correct polarity?
Refer to the polarity markings in the
battery case and reinstall the batteries
The DF301 / DF311 does not
function or display properly.
The DF 301 / 311 may
need to be reset.
Use a toothpick to press the reset button
in the battery case. Your stored personal
data will remain, but the clock will be
reset to 12:00.
The displayed body fat ratio is
unusually higher or lower than
previously estimated values.
Are you using the correct
posture and hand
positions?
Perform estimation again with the correct
posture and hand position. See “Correct
Use of the Body Fat Monitor” on the
previous page.
The estimated body fat ratios
vary signi
fi
cantly.
Cannot get a steady reading.
Are you using the correct
posture and hand
positions?
Perform estimation again with the correct
posture and hand position. See “Correct
Use of the Body Fat Monitor” on the
previous page.
Reading outside of personal
data limitations.
Your body fat ratio
(5~60%) or your BMI
(5-50) is outside of the
computable range.
Make sure your personal data (weight,
height, age and gender) are correct.
The estimated inductance is
too high.
Your
fi
ngers are too dry.
Moisten your
fi
ngers with a damp cloth.
Low battery.
The batteries are
exhausted.
Replace the batteries.
Blinking display.
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