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Particulates Real time monitors
Particulates Air Quality
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Ecotech designs and integrates a wide range of continuous particulate monitors including light scattering based PM monitors and beta attenuation monitors. Our monitors can be incorporated into air conditioned weatherproof shelters or can be stand alone powered by solar panels. We offer a wide range of solutions for many different types of industries including mining, construction, pulp & paper, cement manufacturing, aluminium smelting and compliance monitoring of all types. Ecotech are the distributor of the Met One, Opsis and MSP range of particulate monitors. We also design and manufacture our own range of continuous aerosol monitors including the Aurora integrating nephelometer and high and low volume air samplers. |
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Applications
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Ecotech offers fully integrated solar powered particulate monitoring systems utilising either the beta attenuation or light scattering technique for accurate, reliable and low maintenance performance. |
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These systems incorporate solar panels, batteries, data acquisition, remote communication and data validation and reporting software that is used to remotely download data from the monitors using 3G communication. Meteorological parameters such as wind speed, direction, relative humidity and temperature can also be incorporated and mounted on an integrated mast.
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Ecotech designs and supplies systems capable of determining the contribution of particulates from a local source such as a quarry or a site undergoing decontamination. These systems utilise a variety of particulate monitors, wind speed and direction sensors and the Ecotech WinAQMS Data Acquisition System which calculates the difference between the upwind particulate concentration and the downwind particulate concentration performing calculations to determine the actual site contribution of particulates. |
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If site contribution rises above a settable threshold then alarms can be sent to site operators to activate dust suppression activities. Data can also be retrieved remotely using Ecotech's Wincollect software.
Particulate monitoring can be combined with:
- Wind speed/direction
- Automatic reporting
- Visibility measurements
- Gaseous pollutants (O3, CO, CO2, SO2, NOX etc)
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Ecotech is an authorised systems integrator of the Met One BAM1020 U.S. EPA approved PM10 & PM2.5 Beta Attenuation Monitor. The BAM1020 was the first PM2.5 monitor to receive USEPA Federal Equivalent Method approval. We incorporate these accurate, reliable and low maintenance instruments into our air quality monitoring systems and distribute them globally. |
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Source apportionment monitoring involves instruments that allow users to measure particulate mass measurements (mg/m3) every minute, along with giving indications of changes in particulate composition and source. |
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By utilising the Aurora Nephelometer (measuring scattering coeficient of aerosols) and connecting it to a beta attenuation monitor (measuring PM concentrations) it is possible to create a correlation factor which can automatically adjust the PM output from the Aurora Nephelometer in order to provide 1 minute real time PM data.
This correction factor will remain constant and can automatically be updated every hour. If the particulate type/source changes due to a change in the particulate air mass, such as when urban air is replaced by marine air due to a wind change the correction factor will change. This change in the correction factor can be continuously monitored and provides information on changes in aerosol chemistry.
This solution provides the following data:
- Hourly averaged PM concentration from a U.S. EPA approved compliance monitors
- Scattering coefficient from the nephelometer
- Corrected real time 1 minute PM concentrations.
- Scatter/PM correction factor (updated hourly)
- Ambient Visibility based on Koshmediers theorem
Products
Ecotech supplies dust/particulate samplers and monitors for TSP, PM2.5 and PM10. Ecotech also produce the world's largest range of nephelometers, used to measure visibility along with other applications involving the scattering of light by aerosols used in global radiation balance studies.
Met One BAM1020 Beta Attenuation Monitor - Compliance Applications
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The BAM-1020 automatically measures and records airborne particulate concentration levels (in milligrams or micrograms per cubic meter) using the industry-proven principle of beta ray attenuation. Thousands of BAM-1020 units are currently deployed worldwide, making the unit one of the most successful air monitoring platforms in the world. Designations The Met One Instruments Model BAM-1020 has long standing U.S. EPA designation as a Federal Equivalent Method (FEM) for continuous PM10 particulate monitoring. In addition, the BAM-1020 is the world’s first instrument to obtain U.S. EPA FEM designation for continuous PM2.5 monitoring, when configured with the specified settings and accessories. The BAM-1020 has also obtained corresponding certifications in other countries and regions. The BAM1020 meets Australian Standard AS/NZS 3580.9.11:2008 Method 9.11: Determination of suspended particulate matter – PM10 Beta Attenuation Monitor. |
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Met One E-BAM Beta Attenuation Monitor
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The Met One E-BAM is a portable real-time beta gauge traceable to US-EPA requirements for automated PM 2.5 and PM 10 measurement. It is also ideal for the monitoring of TSP. It can be used as a TSP, PM10 or PM2.5 monitor depending on the size selective inlet which is used. The BAM1020 meets Australian Standard AS/NZS 3580.9.11:2008 Method 9.11: Determination of suspended particulate matter – PM10 Beta Attenuation Monitor. The E-BAM provides continuous filter tape measurement of PM concentrations. 15 minute averages are available and it can interface with meteorological sensors which include wind speed and direction, relative humidity and temperature. It is installed in hundred's of sites throughout Australia, especially in the mining industry, and is an excellent solution for remote monitoring where AC power is unavailable. Ecotech's Wincollect interfaces directly to the E-BAM and is able to automatically download data remotely. |
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Aurora 2000 PM Correlation Nephelometer
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The Aurora 2000 is part of the ‘new generation’ nephelometers using a single wavelength to measure aerosol light scattering and derive particulate concentrations. The Aurora 2000 is available in two configurations. |
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More info at = www.ecotech.com
Configuration 1
| The Aurora 2000 is available with automatic flow control and a PM2.5 Size Selective Inlet. This configuration improves the correlation between the Aurora 2000 and Federal Equivalent PM2.5 methods. |  |
This sampling method enables a manual correction factor to be entered in order to derive real time (1 minute) PM2.5 concentrations. In applications where the aerosol chemistry is stable this configuration provides excellent results with minimal maintenance and a high degree of correlation.
The Aurora Nephelometer employs a smart heater controlled by a relative humidity sensor, this allows the user to set the maximum relative humidity of the sampled air, eliminating the influence of water vapour on the measurement and thus performing a “dry measurement”.
Configuration 2
| In applications where aerosol chemistry is subject to change, a correction factor derived from manual sampling may be unreliable. |  |
The Automatic correlation PM nephelometer connects directly to the Met One BAM1020 in order to monitor and log PM hourly averages generated by a BAM1020 (PMBAM). These hourly averages are compared to the Aurora’s hourly average scattering coefficient (σscat) and a scattering to PM coefficient factor (CoefScat/PM) is calculated. This factor is then applied to the next hour of 1 min scattering coefficients measured in order to determine a 1 minute average for PM concentrations (PMaurora). This data can also be used to determine changes in aerosol source through deviations in light scattering from the expected values.
Met One E-Sampler
| The E-SAMPLER is the most feature-packed light-scatter Aerosol Monitor available. Whatever your monitoring needs, the E-sampler will provide accurate, dependable and relevant data. Features
Applications: Construction, mining, feedstocks (fertiliser plant) |
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Opsis SM200 Particulate Sampler/Monitor
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The Opsis SM 200 is a combined particulate monitor that can be used for both automatic measurement and filter sampling. It uses 47 mm filters for sampling and beta attenuation of particulates. It is a sequential sampler that can contain up to 40 filter cartridges allowing later chemical analysis. It can also be fitted with a real time light scatter PM monitor in order to provide real time data. |
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MSP Model 7400AD Real Time Fibre Monitor
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The Model 7400AD is a technologically advanced real-time fiber monitor that automatically detects and counts airborne fibers such as asbestos, mineral wool, advanced composites, ceramic and glass. Each 7400AD is factory-calibrated with traceability to NIOSH Method 7400 for asbestos fibers. The 7400AD ignores non-fibrous background particles using the proven principle of electric-field-induced fiber alignment and oscillation. The 7400AD is the ideal means to check and verify worker safety during asbestos remediation and removal operations. With its fully charged battery pack, the 7400AD will operate unattended for eight hours and record the observed fiber data at regular intervals. If the fiber concentration exceeds a user-defined, pre-set level, an audible alarm sounds. Within the 7400AD is a filter from which one can obtain samples for later chemical or physical analysis, such as comparison with phase-contrast microscopy. The on-board, specialized software allows users to set a range of performance features to customize the operation. FEATURES
APPLICATIONS
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