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Appendix
Calculation Method for Displayed Values
<Pulse level meter>
The pulse level meter displays the transmitted light amount ratio calculated by the
following equation. The pulse level is indicated in eight levels (0 to 15%, full scale
if over 10%).
Transmitted light amount that varies due to the pulse
Pulse level (%) = ------------------------------------------------------------------------------------------------------------------ x 100
Transmitted light amount that does not vary due to the pulse
<Oxygen saturation (SpO
)>
2
Updates the moving average of the oxygen saturation over the last 12 seconds at
one-second intervals.
<Pulse rate (P.R.)>
Updates the moving average of the last 8 pulse rates at one-second intervals.
25
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