YYT666–Dolomite Dust Clogging Test Machine
The product is suitable for EN149 test standards: Respiratory protection device-filtered anti-particulate half-mask; Compliant with standards: BS EN149:2001+A1:2009 Respiratory protection device-filtered anti-particulate half-mask required test mark 8.10 blocking test,and EN143 7.13 standard test,etc,
Principle of blocking test: Filter and mask blocking tester are used to test the amount of dust collected on the filter when the airflow through the filter by way of inhalation in a certain dust environment, when a certain respiratory resistance is reached, Test the breathing resistance and filter penetration (penetration) of the sample;
This manual contains operating procedures and safety precautions:please read carefully before installing and operating your instrument to ensure safe use and accurate test results.
1. Large and colorful touch screen display, humanized touch control, convenient and simple operation;
2. Adopt a breathing simulator that conforms to the sine wave curve of human breathing;
3. The dolomite aerosol duster generates stable dust, fully automatic and continuous feeding;
4. The flow adjustment has the function of automatic tracking compensation, eliminating the influence of external power, air pressure and other external factors;
5. Temperature and humidity adjustment adopts heat saturation temperature and humidity control method to maintain the constancy of temperature and humidity;
Data collection uses the most advanced TSI laser dust particle counter and Siemens differential pressure transmitter; to ensure that the test is true and effective, and the data is more accurate;
2.1 Safe operation
This chapter introduces the parameters of the equipment, please read carefully and understand the relevant precautions before use.
2.2 Emergency stop and power failure
Unplug the power supply in an emergency state, disconnect all power supplies, the instrument will be powered off immediately and the test will stop.
1. Aerosol: DRB 4/15 dolomite;
2. Dust generator: particle size range of 0.1um~10um, mass flow range of 40mg/h~400mg/h;
3. Respirator-built-in humidifier and heater to control exhalation temperature and humidity;
3.1 Displacement of breathing simulator: 2L capacity (adjustable);
3.2 Frequency of breathing simulator: 15 times/min (adjustable);
3.3 Exhaled air temperature from the respirator: 37±2℃；
3.4 Relative humidity of exhaled air from respirator: minimum 95%;
4. Test cabin
4.1 Dimensions: 650mmx650mmx700mm;
4.2 Airflow through the test chamber continuously: 60m3/h, linear velocity 4cm/s;
4.3 Air temperature: 23±2℃；
4.4 Relative humidity of air: 45±15%;
5. Dust concentration: 400±100mg/m3;
6. Dust concentration sampling rate: 2L/min;
7. Respiratory resistance test range: 0-2000pa, accuracy 0.1pa;
8. Head mold: The test head mold is suitable for testing respirators and masks;
9. Power supply: 220V, 50Hz, 1KW;
10. Packaging dimensions (LxWxH): 3600mmx800mmx1800mm;
11. Weight: about 420Kg;
