M3 Vital Signs Monitor Service Manual
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2 Principle
2.1 General Parts
The monitor has been designed to measure physiological parameters including NIBP and SpO
2
.
There are five parts in monitor, see figure 2-1.
• Parameter measuring part
• Main control part
• Interface part
• Power supply part
• Other auxiliary parts
Figure2-1 Monitor Structure
2.1.1 Parameter Measuring Part
The monitor acquires the physiological signals of Non-invasive blood pressure (NIBP), Oxygen
saturation of the blood (SpO
2
). The Parameter measuring part can transform physiological signals
to electrical signals, process and transfer the values, waveforms and alarm information to Main
control part, and then display them by Interface part.
Main
control
part
Interface part
Power
Parameter
measuring part
Other auxiliary parts