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PM 2.5 Sampler APM 154 MFC
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Ambient air enters the APM 154 MFC Sampler through an omni directional inlet designed to provide a clear aerodynamic cut-point for particles larger than 10 microns. The air stream then passes through a WINS Impactor that retains the fraction between PM 10 and PM 2.5. The PM 10 and PM 2.5 impactors used in the APM 154 MFC are based on designs standardized by US-EPA and as such the system complies with international norms for PM 2.5 Samplers.Special Features : PM 10 and PM 2.5 Impactors of sampler based on designs standardized by US EPA. Flow Control based on Mass Flow measurements to remove errors due to pressure, temperature changes (of both ambient air and filter). Auto shut off if flow rate drops significantly below 1 m3/hr. Microcontroller based data logger records Air Temp., Filter Temp and flow rate. Windows based software for downloading data. Pump Assembly in separate cabinet to prevent loss of volatile fraction and improve portability. Special imported oil free brushless vacuum pump that is practically noiseless
