HTabsOverviewBrochure: Sample_stream_dryer_spec_sheet.pdf Information: INSTRUMENT BACKGROUND The interaction of water with aerosol species changes their physical properties. Consequently, the World Meteorological Organization has recommended that all aerosol measurements be performed under conditions where the Relative Humidity is 40% or lower (WMO/GAW 2003; Wiedensohler, 2014). Many stations in hot, humid locations have air-conditioned interiors. If the indoor air-conditioning temperature Ta is comparable to or lower than the dewpoint (condensation temperature) Td of the outside ambient air, water will condense in the tubing and inside the instrument. This will not only completely invalidate the data but can also cause permanent damage to the instrument. APPLICATIONS Ambient Air Quality monitoring in humid locations Laboratory aerosol studies Direct combustion emissions measurement Low-temperature sampling (drying does not affect volatiles) SpecificationSpecification: OPERATION USB powered ; 5 V ; 200 mA MECHANICAL DATA Chassis material: Aluminum Length: 82 cm / Diameter: 11 cm Weight: 4.55 kg ENVIRONMENTAL OPERATING CONDITIONS Indoor use only Temperature range: 10 – 40 °C; Temperature measurement accuracy: 0.2 °C Relative humidity range: non-condensing; Relative humidity measurement accuracy: 2%; Drying efficiency: 14 °C @ input dew point temperature 22 °C Particle loss: < 4 % AIR CONNECTORS Sampling air: inlet/outlet type – 1⁄4” NTPF Purge air, vacuum pump connection: 1/8” NTPF Sample airflow: up to 5 LPM; Purge airflow: 4 LPM Drying pressure: -700 mbar ELECTRICAL CONNECTORS USB Type B (for power supply only) RS232 serial interface for data transmission Chassis functional grounding USER INTERFACE Display: 4 x 20 alphanumeric character display LED indicator: Green, Yellow, Red Vacuum gauge / Vacuum adjusting control EXTERNAL PUMP SPECIFICATION SUPPLY (KNF) N838.1.2.KN.18 230V/50 Hz alternately (KNF) N838.1.2.KN.18 115V/60 Hz TECHNICAL DATA Delivery: 37 LPM free air: (5 LPM at vacuum 300 mbar abs.) Vacuum: 100 mbar abs Dimensions: 402x121x110 mm Weight: 6.8 kg PERFORMANCE CHARACTERISTIC Further InfoDocuments: Sample_stream_dryer_spec_sheet.pdf
