INSTRUCTION MANUAL FOR PULSE OXIMETER/
MANUAL DE USO PARA PULSIOXÍMETRO
Model/Modelo: PX-02
3.3 Clinical restrictions
1. As the measure is taken on the basis of arteriole pulse, substantial pulsating blood
flow of subject is required. For a subject with weak pulse due to shock, low
ambient/body temperature, major bleeding, or use of vascular contracting drug, the
SpO
2
waveform (PLETH) will decrease. In this case, the measurement will be more
sensitive to interference.
2. For those with a substantial amount of staining dilution drug (such as methylene blue,
indigo green and acid indigo blue), or carbon monoxide hemoglobin (COHb), or
methionine (Me+Hb) or thiosalicylic hemoglobin, and some with icterus problem, the
SpO
2
determination by this monitor may be inaccurate.
3. The drugs like dopamine, procaine, prilocaine, lidocaine and butacaine may also be a
major factor blamed for serious error of SpO
2
measure.
4. As the SpO
2
value serves as a reference value for judgement of anemic anoxia and
toxic anoxia, some patients with serious anemia may also report good SpO
2
measurement.
4 Technical specifications
4.1 Display Format:
Digital tube Display;
SpO
2
Measuring Range:
0% - 100%;
Pulse Rate Measuring Range:
30 bpm - 250 bpm;
Pulse Intensity Display:
columniation display
4.2
Power Requirements:
2 ×1.5V AAA alkaline battery
（
or using the rechargeable
battery instead
）
，
, adaptable range: 2.6V~3.6V.
4.3 Power Consumption:
Smaller than 25 mA.
4.4 Resolution:
1% for SpO
2
and 1 bpm for Pulse Rate.
4.5 Measurement Accuracy:
±2% in stage of 70%-100% SpO
2
, and meaningless
when stage being smaller than 70%. ±2 bpm or±2% (select larger) for Pulse Rate.
4.6 Measurement Performance in Weak Filling Condition:
SpO
2
and pulse rate can
be shown correctly when pulse-filling ratio is 0.4%. SpO
2
error is ±4%, pulse rate error
is ±2 bpm or ±2% (select larger).
4.7 Resistance to surrounding light:
The deviation between the value measured in the
condition of man-made light or indoor natural light and that of darkroom is less than ±1%.
4.8
It is equipped with a function switch. The Oximeter can be powered off in case no
finger is the Oximeter within 5 seconds.
4.9 Optical Sensor
Red light (wavelength is 660nm
，
6.65mW)
Infrared (wavelength is 880nm, 6.75mW)
