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5.
PRINCIPLES OF OPERATION OF THE PULSOXYMETER
The finger pulse oximeter is used to measure blood saturation, i.e. SpO2 oxygenation and pulse in
real time. It allows you to examine the level of hypoxia in the body, which is dangerous to human
health and life.
The principle of operation of the pulse oximeter is that, according to the technology of scanning and
recording capacitive pulses, it measures the radiation absorbed by red blood cells with two
wavelengths: infrared and red. Based on the measurement, using the method of transmission
spectrophotometry, it measures the differences in the optical properties of oxygenated and non-
oxygenated hemoglobin and calculates the degree of hemoglobin saturation with oxygen (SpO2).
Rys. 1
6.
TECHNICAL SPECIFICATION
•
Display: TFT
•
Pulse wave display: bar graph
•
SpO2 measurement range: 0% - 100%;
•
Accuracy: 70% -
100% ± 2%, below 70% undefined
•
Optical sensor: red light (wavelength 660nm, 6.65mW)
•
infrared (wavelength 880nm, 6.75mW
•
Heart rate measuring range: 30bpm - 250bpm
•
Heart rate resolution: 1 bpm
•
Measu
rement accuracy: ± 2% (70%
- 100%)
•
PR Measuring range: 25-250 strokes / min.
•
PR accuracy: ± 2% bpm
•
Resolution: SpO2: 1%
•
Ambient light resistance: <1%
•
Battery type: 2 x 1.5V AAA alkaline.
•
Power consumption: less than 30 mA
•
Product size: 60 x 32 x 32mm
•
Product weight: 63g
•
Package contents: device - pulse oximeter, lanyard, manual in polish and english
7.
DEVICE DESCRIPTION