Respirable Dust Sampler Ecotech Model AAS 217NL
Respirable Dust Sampler Ecotech Model AAS 217NL
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High Volume Air Samplers remain workhorse for air quality moniotring. Modification and improvements are done in basic HVS by incorporating a cyclone in the sampler which fractionate ambient air suspended particles into two fractions one upto 10 micron which passes through the cycone and deposited on fitler paper while other bove 10 micron removed by cyclone get accumulated in the cup fitted at bottom of cyclone.
Ecotech developed RDS based on the concept and requirement given in the BIS 5182 (Part-23) 2006. While developing a user friendily provisions are made in the machine for fitting of Gaeous Pollutants Sampling Attachment. Due to provision of fitting of gaseous attachment AAS 217NL has become an unique system using which one can sample simultanously PM10, SO2, NO2, NH3 and O3. Collected PM10 dust can be analyzed for Heavy metals (Ni, As and Pb) and Benzo(a)pyrene without compromizing in single dust sample collected by AAS 217NL as per existing standard methods.
TECHNICAL FEATURES: | ||
In AAS 217NL ambient air is sucked using low maintenance brushless and noiseless blower through corrosion free aluminum modular pipe and pass thorough a sharp cutoff cyclone which divides the particulate matters in two fractions one below 10 microns and another above 10 microns. The Respirable dust (below 10 microns) directly get deposited on filter paper and the coarser dust (above 10 microns) collected in the cup fitted under the cyclone. A time totalizer records the total running time of the blower. A programmable digital timer makes the instrument to stop and start as per requirements set in the timer. The manometric systems indicates the rate of flow in cubic meter per minute which can be read directly on calibrated scale. Ecotech RDS has all branded components and suitable for outdoor field use. In 217NL regenerative blower is fitted where impeller is directly mounted on the induction motor. Due to use of induction motor stabilizer is not required. Induction motor has capability to maintain its rpm automatically of wide range of input voltage 180-260v. Due to very low noise it can be operated in residential and sensitive areas without any disturbances. Noiseless blower does not require regular maintenance. Only SS hardware are used in sampler. All Ecotech products are lockable and can be opened by single master key provided with each instrument. User convenience kit with tools operation manual and accessories are supplied with instrument.
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