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)
