PULOX PO-200 Mode D'emploi page 20

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 having sport) and etc.
The product is not suitable for use in continuous supervision for
patients.
The problem of overrating would emerge when the patient is
suffering from toxicosis which 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
3.1 Principle of Measurement
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.
EN