Contec CMS-50f - Technical Specifications; Main Performance; Measurement Parameters

4
4 Technical Specifications
4.1 Main Performance
A. SpO
2
value display
B. Pulse rate value display, bar graph display
C. Pulse waveform display
D. Low-voltage indication: low-voltage indicator appears before working abnormally which is due
to low-voltage
E. The display mode can be changed
F. Screen brightness can be changed
G. A pulse sound indication
H. With alarm function
I. With SpO
2
value and pulse rate value of storage, the stored data can be uploaded to computers
J. It can be connected with an external oximeter probe
K. Data can be transmitted to computers
L. With clock function
4.2 Main Parameters
A. Measurement of SpO
2
Measuring range: 0%~100 ％
Accuracy:
When the SpO
2
measuring range is 70% ~ 100 ％ ,the permission of absolute error is ±2 ％ ;
Below 70% unspecified
B. Measurement of pulse rate
Measuring range:30bpm~250bpm
Accuracy: ±2 bpm or ±2% (select larger)
C. Resolution
SpO
2
: 1%, Pulse rate : 1bpm.
D. 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).
E. 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%.
F. Power supply requirement: 3.6 V DC ~ 4.2V DC.
G. Optical Sensor
Red light (wavelength is 660nm,6.65mW)
Infrared (wavelength is 880nm, 6.75mW)
H. Adjustable alarm range
SpO
2
: 0%~100%
Pulse Rate: 0bpm~254bpm