met one bam-1020
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Met One BAM-1020
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US-EPA Equivalent Method
Met One BAM-1020 is a US-EPA designated beta gauge Instrument used
world wide.
EPA Designation vide EQPM-0798-122
Automatically measures Zero and Reference Mass value in each
cycle.
Does not require the use of correction factors. Best accuracy of all beta models.
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BAM-1020 Advantages
Continuously samples and measures ambient air for particulate
matter.
45 day continuous operation between filter tape changes.
Accessories available for measuring PM2.5 and TSP.
Heated Probe system to avoid moisture condensation in areas
having high Humidity.
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Theory of Operation Beta rays are measured through clean filter
tape.
Air containing particulate is sampled and
deposited on the filter tape.
Beta rays are measured through dirty filter
tape.
The difference between the two
measurements is proportional to the mass
concentration.
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Beta Gauge Advantages
Time proven, stable technology: beta gauges have been in use
for over 60 years.
Beta attenuation technique is simple, easy to use, and requires
less maintenance than other methods.
Fewer site trips required, ideal for remote deployment.
Met One beta gauges are manufactured and supported from the
United States.
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Beta Gauge Advantages
Seasonal and geographical correction factors are not needed.
It is not necessary to calibrate the beta measurement system in
the field.
BAMs provide excellent agreement with gravimetric reference
standards when properly maintained and operated.
Beta technology is virtually unaffected by the chemical
composition of the sampled particulate.
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BAM-1020 Advantages
Continuously samples and measures ambient air for particulate
matter.
Designed to predict the mass concentration measured by manual
gravimetric samplers with the highest accuracy.
Does not require the use of correction factors
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BAM-1020 Advantages
60 day continuous operation between filter tape changes.
Designed for long term operation at a fixed installation.
Powerful integrated 6 channel data logger compatible with a
wide array of meteorological sensors. Best accuracy of all beta models.
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Simplicity Measurement System
The BAM-1020 measurement systemconsists of a few simple components:
Carbon 14 Beta source
Filter tape support
Photomultiplier tube detector
Preamp circuitry
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BAM Comparison to EPA Reference for
PM2.5