Mask filtration efficiency tester use environment

Mask filtration efficiency tester is our company Shanghai Qianshi Precision Electromechanical Technology Co.
, Ltd.
independent research and development and production of test equipment, suitable for daily protective masks, medical masks, respirators and meltblown cloth on the particulate matter filtration efficiency test, cost-effective, complete
after-sales service.

Use environment: (1) Compressed air source The compressed air pressure is 0.
5 ~ 0.
7MPa, the flow rate is greater than 0.
3m2 / min, and the compressed air is required to be dry and clean
.

(2) Power supporting 220VAC, 50Hz; Stable power supply of more than 1.
5kW (ground wire must be required
).

(3) Sufficient site space: 3M (long) X3M (width) X1.
8M (height
).

Main parameters: 1, air flow regulation and collection range: 20-100L/min, flow rate can be adjusted and collected in the range of 20-100L/min, accuracy 1% FS 2, filtration efficiency test range: (0.
001-99.
999)%, resolution 0.
001%.
3, test area: 100cm2 (optional KN95 mask tooling fixture) 4, ventilation resistance: 0-1000pa, accuracy 1pa 5, aerosol concentration: NaCl aerosol generator concentration does not exceed 200mg/m2, count the median diameter (0.
075±0.
020) um, the geometric deviation of the particle size distribution does not exceed 1.
86, and the median mass particle size is about 0.
3um
.

6.
Laser dust particle counting sensor test channel: 6 channels, can measure the number of particles
with a diameter of 0.
3 μm, 0.
5 μm, 1.
0 μm, 2.
5 μm, 5.
0 μm, 10.
0 μm diameter.

Advantages and characteristics: 1.
The company has been engaged in testing instruments for more than ten years and has a strong after-sales service team; 2.
Be able to deal with various problems in a timely and rapid manner, and relieve customers' worries; 3.
Spare parts are complete, to solve the problem of ordering spare parts with a long shelf life; 4.
Provide outsourced maintenance services; 5.
Long-term supply of various commonly used testing instruments; 6.
Keep up with the update of industry standards, and provide test instruments that meet the new standards
in a timely manner.