User Manual for Vital Signs Monitor
39
6.4 SpO
2
Monitoring
1. Transducer: dual-wavelength LED
Wavelength: Red light: 663 nm, Infrared light: 890 nm.
Maximal optical output power: less than 2mW maximum average
2. SpO
2
measuring range: 35%~100%
3. SpO
2
measuring accuracy: Arms is not greater than 3% for SpO
2
range from 70% to 100%
*NOTE: Arms is accuracy defined as root-mean-square value of deviation according to ISO 9919
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: Monitoring mode: 0.5~40Hz
6. Time constant: Monitoring mode:
≥
0.3s
6.7 Other Technical Specifications
1. AC power supply voltage: 100~240VAC
2. AC power frequency: 50/60 Hz
3. Fuse specification: T3.15AL/250V
Φ
5
¯
20mm.
4. Internal power supply: 12VDC (rechargeable)
5. Battery specification: 12V 2.3AH (sealed lead-acid 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
