PULOX PO-250 Mode D'emploi page 23

B. The product is small in volume, light in weight and convenient for
carrying.
C. Low power consumption
2.3 Major Applications and Scope of Application
The Pulse Oximeter can be used in measuring the pulse oxygen
saturation and pulse rate through finger. The product is suitable for
being used in family, hospital, oxygen bar, community healthcare,
physical care in sports (it can be used before or after doing sports and
it is not recommended to use the device during the process of
excercises) and more.
The problem of overrating would emerge when the patient is
suffering from toxicosis caused by carbon monoxide, the device
is not recommended to be used under this circumstance.
2.4 Environment Requirements
Storage Environment
a. Temperature : -40°C~+60°C
b. Relative humidity : ≤95%
c. Atmospheric pressure : 500hPa~1060hPa
Operating Environment
a. Temperature: +10°C ~+40°C
b. Relative Humidity : ≤75%
c. Atmospheric pressure: 700hPa~1060hPa
3. Principle
The 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. The
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
wavelengths of lights can be focused onto a human nail tip through
perspective clamp finger-type sensor. The 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.
EN