【Scope of application】

It is used to detect the dead space of the mask, that is, the volume fraction of CO2 in the inhaled gas.

【Standards compliant】

GB 2626 Respiratory protective equipment Self-suction filter anti-particulate respirator

【Instrument characteristics】

1. The testing process is completely controlled by a computer program, which realizes automatic detection, automatic recording and automatic calculation of the changes of the inhaled gas carbon dioxide concentration value during the entire testing process. The operation is simple and convenient to use.
2. There is no need to adjust the breathing frequency and the amount of breathing during the test. The breathing frequency and the amount of breathing can be changed by simple parameter setting operations on the computer. The adjustment is very convenient and accurate.
3. The one-way valve that controls the breathing channel is automatically controlled by the ventilator using a solenoid valve group, which is completely synchronized with the action of the ventilator. Make the test results more accurate.
4. All the data of the test process is automatically saved in the computer, and the test report is automatically generated. The data of the entire test process can be viewed at any time through the computer, and the report of the test results can be printed at any time.

【Technical Parameters】

1. Breathing simulator simulated breathing frequency modulation: 10～40 times/min
2. Adjustable range of simulated tidal volume: 0.5～3.0L/min
3. The volume fraction of the carbon dioxide gas source is 5.0±0.1%
4. Carbon dioxide flowmeter range: not less than 40L/min
5. Range of carbon dioxide analyzer: not less than 12%, accuracy is not less than 0.1%
6. Electric fan: wind speed 0.5m/s
7. Breathing frequency: 20 times/min
8. Breathing tidal volume: 1.5L
9. Power source: AC220V 50Hz
10. Automatically calculate and display the volume fraction of CO2 in the inhaled gas in real time