A. Scope of Application
According to GB 2626-2006, GB 2890-2009, GB 2626-2016, and GB 6220 non-powered air-purifying particle standards. It is used to test face mask breather valve airtightness.
B. Features:
The tester can only detect half mask. Each sample must not have the following conditions:
1. When the pumping flow rate has reached 500 L/min, the system negative pressure cannot reach 1180 Pa.
2. The time for the exhalation valve to return to normal pressure is less than 20s.
C. Technical Parameters
1. Volume: 150±10mL
2. Micromanometer Measuring Range:0~2000±1Pa, accuracy 1Pa
3. Flowmeter Measuring Rage:0~1000mL/min
4. Flowmeter Accuracy: 3%
5. Digital Display Flow Rate
6. Timer Accuracy: 0.1s
7. Air Pump Speed: 2L/min
8. Real-time display of test pressure
9. Meet the airtightness test of 6.14
10. PLC control, touch screen display
11. AC220/50HZ
D. Components:
1. Head Model (1 Set)
2. Respiratory pressure control system (1 Set)
3. Microflow Sensor (1 Set)
4. Micromanometer Sensor (1 Set)
5. Siemens PLC programmable control system (1 Set)
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