Vion 880E Instructions For Use Manual page 12

+Taking Measurement
Press it GENTLY until you hear the click sound.
Note: Do not press the electrodes hardly. Excessive muscle tension will cause
unnecessary noise.
Measurement Method B
"left index finger-chest" (approximately corresponds to "lead 3")
1. Press the power button for 3 seconds to turn on your ECG Pen.
2. Lay your left index finger on the two top electrodes of the device
and hold the ECG Pen face up in your hand.
+Taking Measurement
3. You can determine the correct position for placing the lower electrode of
the device against your chest using the following methods:
Place the bottom electrode of the ECG Pen on bare skin about 5
centimeters (2 inches) below your left nipple supported by the ribcage, and
press it GENTLY until you hear the click sound.
Draw an imaginary line from the front of your armpit downwards. At
the same time, draw an imaginary line going up 10cm from the lowest rib on
the left side of your body. Place the lower electrode of the device at the
point where these two lines meet.
Draw an imaginary line from the bottom of the centre of your chest
(sternum) to the left. At the same time, draw an imaginary line from the
front of your armpit downwards. Place the lower electrode of the device at
the point where these two lines meet.
Press it GENTLY until you hear the click sound.
Note: Do not press the electrodes hardly. Excessive muscle tension will cause