Products > Atmospheric Research > Integrating Nephelometer > Aurora 2000
AURORA 2000 - PM Correlating Nephelometer
Simplified automatic calibration using internal valves, ideal for remote locations
Fully integrated package including: internal sample pump, sample heater,
internal calibration valves, zero air pump and data logger
Internal sample heater with temperature or RH control, which can be enabled by the user to eliminate the effects of humidity (RH: < 30 to < 90 % )
12 VDC operation (45 watts max, 13 watts nominal)
The Aurora 2000 PM Correlating Nephelometer is part of the ‘new generation’ nephelometers using a single wavelength and a BETA monitor to measure aerosol light scattering and derive particulate concentrations.
The Aurora 2000 enables the calculation of a correlation factor based on a PM2.5 reference method which is then used to derive every minute a PM2.5 concentrations along with the usual light scattering. The correction factor can be entered manually or automatically derived from hourly averages from a continuous PM2.5 monitor.
COMMUNICATIONS & DATA LOGGING
Outputs: 25 pin external I/O analog outputs (2 voltage & 2 current); 2 x RS232 serial ports (multi-drop, service)
Filtering: Kalman (digital adaptive filter), moving average (30 seconds) or no filter
Stored parameters: Date & time, µg/m3, σsp (635, 525 or 450 nm), hourly BAM PM average, hourly mass correction factor, sample air temperature, enclosure temperature, RH and barometric pressure and instrument status
Capacity: Maximum of 61 days of 5 minute averages, or 12 days of 1 minute averaged data