Gima OXY-4 Manual De Uso página 20

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6. Shift parameter display between PR and PI during measurement
Long time press the "Display Key", shift the parameter display between PR and
PI. But when the PR is shifted to PI display and no button operation is performed
after 20 seconds, the PI will change to PR display automatically.
5. Technical Specifications
A. SpO2 measurement:
dual-wavelength LED sensor with wavelength:
Red light: 663 nm, Infrared light: 890 nm.
Maximal average optical output power: ≤1.5mW
Measuring range: 35%~100%
Measuring accuracy:
Arms ≤ 3% for SpO2 range from 70% to 100%
Note: Arms is defined as root-mean-square value of deviation according to ISO 9919.
SpO2 low over-limit: 90%
B. Pulse Rate measurement:
Measuring range: 30bpm~240bpm
Measuring accuracy: ±2bpm or ±2% (whichever is greater)
Pulse Rate over-limit: high over-limit: 120bpm; low over-limit: 50bpm
C. Perfusion Index (PI) Display
Range: 0.2%~20%
D. Audible & visual over-limit indication
When measuring, if SpO2 value or pulse rate value exceeds the limit, the device will
beep automatically and the value which exceeds its limit will flash on the screen. The
Oximeter will shut down automatically in 8 seconds with no signal.
E. Display: Color OLED Display
F. Power supply requirement:
2 x LR03 (AAA) alkaline batteries
Working voltage: 2.2V~3.3VDC
Operating current: ≤40mA
G. Environment requirement
Operating Temperature: 5 ~40°C
Operating Humidity: 30~80%
Atmospheric pressure: 70~106kPa
H. The performance under low perfusion condition
The accuracy of SpO2 and PR measurement still meets the specification described
above when the pulse modulation amplitude is as low as 0.6%.
I. Resistance to interference of surrounding light:
The difference between the SpO2 value measured in the condition of indoor
natural light and that of darkroom is less than ±1%.