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17
ENGLISH
B. The SpO2 sensor and photoelectric receiving tube should be arranged
in a way with the subject's arteriole in a position there between.
C. The SpO2 sensor should not be used at a location or limb tied with
arterial canal or blood pressure cuff or receiving intravenous injection.
D. Do not fix the SpO2 sensor with adhesive or else it may result in venous
pulsation and inaccurate measure of SpO2.
E. Make sure the optical path is free from any optical obstacles like
rubberized fabric.
F. Excessive ambient light may affect the measuring result. It includes
fluorescent lamp, dual ruby light, infrared heater, direct sunlight and etc.
G. Strenuous action of the subject or extreme electrosurgical interference
may also affect the accuracy.
H. Testee can not use enamel or other makeup on the finger.
3. Technical Specifications
A. Display mode: OLED Display
B. Power supply requirement:
1.5V (AAA size) alkaline battery x 2
Battery voltage: 2.7V~3.3V
C. Operating current: <40mA
D. SpO2 Parameter Specifications:
Measuring range: 35%~99%
Accuracy: ±2% (during 75% - 99%)
Accuracy: ±3% (during 50% - 75%)
E. Pulse Rate Parameter Specifications:
Measuring range: 30bpm - 240bpm
Accuracy: ±2bpm or ±2% (which ever is greater)
F. Blood Perfusion Parameter Specifications:
Measuring range: 0.2%~20%
Accuracy: ±0.1% (during 0.2% - 2%)
Accuracy: ±1% (during 2% - 10%)
G. Resistance to interference of surrounding light:
The difference between the value measured in the condition of indoor
natural light and that of darkroom is less than ±1%.
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