Aurora 3000

3 Wavelength Integrating Nephelometer

The amount of sunlight reaching the Earth’s surface, rather than being scattered back to space, is an important parameter to accurately model the influence of aerosol scattering on our planet’s radiative balance. The Aurora™ 3000 is the favoured choice of researchers as it facilitates simultaneous measurement across three wavelengths, enabling wide and in-depth analysis of the interaction between light and aerosols. It integrates measurements of full scatter and backscatter, making it a perfect instrument for climate change research.

Features

Accurate measurement

High powered LED light source increases measurement accuracy
Easy automatic calibration, ensures repeatability of measurement

Integrated package

Single light source & detector used for all wavelengths

Minimal heat generation

Heat generated by the LED light source is a fraction of that generated by a flash lamp, minimising changes in sample RH

Auto calibration

Automatic optical reference calibration

Wide Range

Fully integrated with Acoem’s Airodis™— data collection, validation and reporting software

Long-term data storage

Holds up to 33 days of 5 minute data averages, 6 days of 1 minute data, or every measurement cycle (3 seconds)

See our technology in action

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Resources

Aurora nephelometers range
Brochure

Aurora 3000
Technical Specifications

Aurora 3000
User Manual

Extra Document

The technology behind the insight / Class-leading technology

Using a LED light source, the Aurora 3000 simultaneously measures at 450 nm (blue), 525 nm (green) and 635 nm (red) to enable wide and in-depth analysis of the interaction between light and aerosols. The Acoem Aurora 3000 includes backscatter measurements that allow both standard integrating measurements of 9 – 170° and also the backscatter 90 – 170.

Like other instruments in the Aurora™ range, the Aurora™ 3000 has a range from 0.3 to 20,000 Mm-1. A high-precision option is also available, with a lower detectable limit of 0.1 Mm-1

450nm (blue) interacts strongly with fine and ultrafine particulates (wood fires, automobiles)
525nm (green) interacts strongly throughout the human range of visibility (smog, fog, haze)
635nm (red) interacts strongly with large particulate matter (pollen, sea salt)

All-round capability

The Aurora™ 3000 facilitates simultaneous measurement across three wavelengths, enabling wide and in-depth analysis of the interaction between light and aerosols. The three wavelengths (Red 635nm, Green 525nm, Blue 450nm) all produce differential scattering and are affected differently by particles of different sizes, shapes, and compositions.

High precision range

Like other instruments in the Aurora™ range, the Aurora™ 3000 has a range from 0.3 to 20,000 Mm-1. A high-precision option is also available, with a lower detectable limit of 0.1 Mm-1. It includes backscatter measurements that allow both standard integrating measurements of 9 – 170° and also the backscatter of 90 – 170°.

Benefits

Simplified automatic calibration using internal valves, ideal for remote locations
Fully automatic zero check or adjust, automatic span check or automatic zero and span check available in intervals of 1, 3, 6, 12, 24 hrs or weekly
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 (60 W max, 14 W nominal)
Holds up to 33 days of 5 minute data averages, 6 days of 1 minute data, or every measurement cycle (3 seconds)
Our LED light source is guaranteed not to fail within 3 years, & often exceeds 5 years life time
An LED light source uses the same light path for each wavelength ensuring consistency of measurement, eliminating the need for PMTs & band pass filters maximising light intensity
Remote control through serial interface
Suitable for high altitude applications.

Applications

Aurora TM integrating nephelometers measure the light scattering coefficient of ambient aerosol particles with high sensitivity and time resoltuion, in a wide range of monitoring and research application, related to air pollution and climate.

Our business cases

World-class aerosol monitoring & measurement

Aurora™ range of integrating nephelometers are an ideal solution for helping us identify, understand and plan ways to control pollution, and the imbalance and degradation of the environment. They are the instruments of choice of governments and Environmental Protection Authorities (EPAs) around the world for visibility applications. Moreover, its simplified automatic calibration with internal valves makes it ideal for remote as well as high altitude locations.

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