Contec CMS50D+ Manual page 15

B. Measurement of pulse rate
Measuring range: 30 bpm ~ 250 bpm
Accuracy: ±2 bpm or ±2% (select larger)
C. Resolution
SpO : 1%, Pulse rate: 1 bpm.
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D. Measurement Performance in Weak Filling
Condition
SpO and pulse rate can be shown correctly when
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pulse-filling ratio is 0.4%. SpO
rate error is ±2 bpm or ±2% (select larger).
E. Resistance to surrounding light
The deviation between the value measured in the
condition of man-made light or indoor natural light and
that of darkroom is less than ±1%.
F. Power supply requirement:
2.6 V DC ~ 3.6V DC.
G. Optical Sensor
Red light (wavelength is 660 nm, 6.65 mW)
Infrared (wavelength is 880 nm, 6.75 mW)
H. Adjustable alarm range:
SpO : 0% ~ 100%
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Pulse Rate: 0 bpm ~ 254 bpm
error is ±4%, pulse
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