Product Description 
 ETW-air microbial sampler (6) details: 
 Air microbes sampling Description 
 ETW-I produced six sieve percussive air microbial sampler is a dual function cascade multi-stage impact sampler, can be widely used in health and disease prevention, bio-clean, pharmaceutical, fermentation industry and environment in the monitoring and related research and teaching departments for the microorganisms in the air sampling studies, provide the basis for the evaluation of the air environment of microbial contamination hazards and control measures. 
 ETW-6 six sieve percussive air microbial sampler is able to determine the number of microorganisms in the air outside, it's unique feature is also measured the size of these particles, while the latter is an important indicator to determine the air microbiological hazards . It into one by a combination of six impactor, each one is actually a single-stage sampling, the use of repeated impact principle, most of the particles, especially the basic crash down in the trachea and lung deposition of particles, and thus it is collected to the particle size range of natural than the single-stage wide, which is unmatched by single-stage impact sampler sampler circular vents cracks and other vents have a higher sampling efficiency. Relative humidity when sampling progressively increased (by 39% in the first grade to 88 percent in the sixth grade), which is very vulnerable to pathogenic microorganisms, especially the survival of the virus particle. Because of its unique features, making it widely and effectively used in the monitoring of microorganisms in the air, commonly used is not bad since its inception. Recommended by experts as an international standard sampler. 
 Rating to the anatomical structure and aerodynamics of this sampler analog of human respiratory physiological characteristics, the impact of sampling inertia principle will be suspended in the air microbial particles collected on the surface of the sampling media, and then for the culture and microbiological analysis. 
 The whole apparatus is by the impactor, the host (flow meter), timer, tripod composition. The impactor is six layers of aluminum disc with a tiny hole. Disc to decentralized agar sealing gasket between each disc, linked through three spring disc firmly linked. Each disc has 400 holes, ring rows, layer by layer decreases, the precise size standard sampling flow rate of 1 cubic foot (28.3L/min). Airflow with microbial particles into the top sampling port, due to increased air flow layer by layer, microbial particles of different sizes according to the aerodynamic characteristics, respectively, the impact on the agar surface. Capture at all levels on the particle size range is determined by the flow velocity of the level hole and a particle cross-sectional resistivity. 1,2 level similar to the upper respiratory tract of the captured particles, the particles captured by the 3 to 6 is similar to the lower respiratory tract, which to a considerable extent copied the penetration of particles in the respiratory tract and calm parts. 
 Can provide the installation of ordinary nutrient agar plate. 
 Measuring range 
 Capture rate: ≥ 98% 

 Trapped particles range 
 :> 7.0μm pore size 1.18mm 

 The second stage: 4.7μm-7.0μm pore size 0.91mm 

 The third level: 3.3μm-4.7μm pore size 0.71mm 

 Grade IV: 2.1μm-3.3μm pore size 0.53mm 

 Level 5: 1.1μm - 2.1μm pore size 0.34mm 

 Sixth grade: 0.65μm-1.1μm pore size 0.25mm 

 Sampling flow 
 28.3L/min can adjust the precision of ≤ 5% 

 Noise 
 ≤ 60 db 

 Electronic timer 
 Range of 1-24 hours, accuracy <1% 

 Working power 
 220V/AC 

 Power 
 ≤ 45W 

 Warranty 
 1 year 
 Basic configuration 

 Host: a set (including vacuum pumps, flow agents, Timer 1) 

 Impactor: 6 impactor 

 Tripod: a 

 Operating Manual: A 

 Connecting tube and other special attachments: a set of 

 Aluminum alloy suitcase: a