Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
3. Principle
Principle of the Oximeter is as follows: An experience formula of data process is established taking
use of Lambert Beer Law according to Spectrum Absorption Characteristics of Reductive
Hemoglobin (Hb) and Oxyhemoglobin (HbO2) in glow & near-infrared zones. Operation principle of
the device is: Photoelectric Oxyhemoglobin Inspection Technology is adopted in accordance with
Capacity Pulse Scanning & Recording Technology, so that two beams of different wavelength of
lights can be focused onto human nail tip through perspective clamp finger-type sensor. Then
measured signal can be obtained by a photosensitive element, information acquired through
which will be shown on screen through treatment in electronic circuits and microprocessor.
4. Technical Specifications
4.1 Main Performance
A. SpO2 value display
B. PR value and bar graph display
C. Pulse waveform display
D. Low-battery indication: low-battery indication appears when the battery voltage is too low to
work.
E. Adjustable screen brightness
F. Voice prompt for over-limit, probe off /finger-out and low battery.
G. PR sound indication
H. Memory function
I. The data can be uploaded to the terminal equipment by wired mode.
J. With clock function
K. Charging function
4.2 Main Parameters
A. Measurement of SpO2
Measuring range: 0%~100％
Accuracy: When the SpO2 measuring range is 70%~100%,the permission of absolute error is
±2%, Below 70% unspecified.
B. Measurement of pulse rate
Measuring range:30bpm~250bpm
Accuracy: ±2 bpm or ±2% (select larger)
C. Resolution
SpO2 : 1%, Pulse rate: 1bpm
D. Measurement Performance in Weak Filling Condition
SpO2 and pulse rate can be shown correctly when pulse-filling ratio is 0.4%. SpO2 error is ±4%,
pulse 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%.
Figure 1
EN
Advertenties
Inhoudsopgave
