User's Manual

DFD-100 User Manual
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Step 4. Confirm the positioning of the DFD-100.
Attention: The front of the DFD-100 must be positioned at
the center of the driver's chest with the buttons and light
indicators facing upwards. The lower edge of the DFD-100
should be level with a point 2 finger-width up from the
xiphoid process of the sternum (indicated spot  ).
※ Because of body type differences, the detection
location may slightly differ. If the heart signal cannot be
detected from the proposed location, slightly adjust the
device location (adjust location as shown below). Please
wait 30 seconds~1minute for DFD-100 to detect the heart
signal. When you sound two short beeping means the heart
signal is successfully detected.