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2.3. Envioronment Requirements
• Storage environment
a) Temperature: -40ºC~60ºC
b) Relative humidity: ≤95%
c) Atmospheric pressure
• Operating environment
a) Temperature: 10ºC~40ºC
b) Relative humidity: ≤75%
c) Atmospheric pressure: 700hPa~1060hPa
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 SPECIFICATION
4.1. Main performance
• SpO2 value display
• Pulse rate value display, bar graph display PI value display
• Pulse waveform display
• Low-power indication: low-power indication symbol appears before working abnormity which is due to low-power.
• Review function
• Screen brightness can be adjusted Pulse sound indication
• With alarm function
• With data record function of multiuser, continuous record 24 hours data for each user, and the record data can be
uploaded to computer.
• It can be connected with adult, child, infant Oximeter probe With clock function
• With locking touch key function
DE
PT NL
SWE
Glow and infrared-ray
Emission Tube
Glow and infrared-ray
Reception Tube
PL
DK
Figure 1
Pulse oximeter
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