43
3. SpO
2
measuring accuracy: Arms is not greater than 3% for SpO
2
range from 70% to 100%
*Note:
Arms is the accuracy defined as root-mean-square value of deviation according to ISO 80604-2-61
4. Low perfusion performance: the declared accuracy is attained when the pulse amplitude modulation ratio is
as low as 0.4%.
6.5 Pulse Rate monitoring
1. Pulse rate measuring range: 30bpm~240bpm.
2. Pulse rate measuring accuracy: ±2bpm or ±2%, whichever is greater.
6.6 Data Recording
1. Sensitivity selection tolerance: ±5%.
2. Recording speed: 25mm/s.
3. Recording speed accuracy: ±10%.
4. Hysteresis: ≤0.5mm.
5. Frequency response: 0.5~40Hz for normal mode, 0.05~40Hz for enhanced mode.
6. Time constant: ≥0.3s for normal mode, ≥3.2s for enhanced mode.
6.7 Other Technical Specifications
1. AC power supply voltage: 100~240VAC.
2. AC power frequency: 50/60 Hz.
3. Battery specification: 11.1V/4400mAh (Li-ion Battery).
6.8 Operating Environment
Working Environment
Ambient temperature range: 5°C ~ 40°C.
Relative humidity: 30 ~ 80%.
Atmospheric pressure: 70kPa ~106kPa.
Transport and Storage Environment
Ambient temperature range: -20°C ~ 60°C.
Relative humidity: 10 ~ 95%.
Atmospheric pressure: 50.0kPa ~107.4kPa.
6.9 Classification
6.10 Other Technical Information
6.10.1 Additional description for ECG monitoring
1. Suppression against the interference from electro-surgical unit: this device has the proper capability to resist
the interference from electro-surgical unit during ECG monitoring.
2. Heart rate average: Averages the recent eight beats having R-R intervals falling within the acceptable limits.
The updating rate of the display: 1 time/second.
3. Heart rate meter accuracy and response to irregular rhythm:
Safety standard
IEC 60601-1
The type of protection against electric shock
Class I equipment
The degree of protection against electric shock
Type BF, CF applied parts
Electro-Magnetic Compatibility
Group I, Class A
