1. Instrument use:
It is used to detect the dead space of the mask, that is, the volume fraction of CO2 in the inhaled gas.
Second, meet the standards:
GB 2626-2019 Respiratory protective equipment Self-suction filter anti-particulate respirator 6.9 Dead space
GB 2890-2009 Respiratory protection Self-priming filter gas mask
GB 21976.7-2012 Building fire escape and refuge equipment Part 7: Filtered fire-fighting self-rescue respirator
3. Technical parameters:
1. Breathing simulator to simulate breathing frequency modulation: (10～40) times/min
2. Adjustment range of simulated breathing tidal volume: (0.5～3.0)L/min
3. Volume fraction of carbon dioxide gas source: (5.0±0.1)%
4. Range of carbon dioxide flowmeter: 40L/min, accuracy is 1L/min;
5. Range of carbon dioxide analyzer: 12%, accuracy: 0.1%
6. Electric fan: wind speed 0.5m/s
7. Power supply: AC220V, 50Hz
8. Dimensions (L×W×H): 820mm×520mm×1380mm
9. Weight: about 60Kg