84i permeation source0 pages

Environmental Monitoring System

Permeation source designed for the Mercury Freedom System

Thermo Scientific™ Permeation Source
is the only permeation oven that fully
integrates with the Thermo Scientific™
Mercury FreedomTM system to meet
interim protocol QC and U.S. EPA
regulatory requirements for Mercury
Monitoring.
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Integrates into the Mercury Freedom
System with up to two co-located
systems

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Automated and manual trigger
audits available

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Supports U.S. EPA Utility MATS and
Cement MACT regulatory requirment

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Approved method for meeting
interim protocol QC requirements

Proven Platform
The Model 84i source complements the
Mercury Freedom System by periodically
assessing and qualifying the constancy of
the mercury concentration output from the
Model 81i Mercury Calibrator. The Model
80i Mercury Analyzer is used to control the
functions of the Model 84i source, including
data capture and DAS interface. An option
in the Model 80i software has been added
to allow the user to access and manage the
Model 84i source.
The Model 84i source can support up to two
co-located* Mercury Freedom Systems. The
dual built in output ports switch between
the co-located system or can alter the flow
to (700sccm) to flood the two Model 80i
analyzers simultaneously. The Model 84i
source is designed to install into the existing
system rack or can be used as a standalone
bench top mercury source.

Regulatory Support
Thermo Scientific Model 84i Mercury
Permeation Source

The Model 84i source uses a process
by which a specific and consistent
concentration of Mercury is generated from a
permeation assembly.

The permeation tube generates a known
and reliable concentration of mercury at
a constant temperature and flow. The
generated mercury concentration, as
measured by the 80i analyzer, will be used
to confirm the reliability of the 81i calibrator
output in accordance with U.S. EPA
requirements.
In compliance with the “Interim EPA
Traceability Protocol for Qualification and
Certification of Elemental Mercury Gas
Generators”, periodic quality assessments
of Mercury Gas Generators are required
following initial certification of an elemental
Hg Generator. QC audits performed by
the Model 84i source can be triggered
automatically through preprogrammed
intervals at the desired frequency of the
user. A manual QC audit can be triggered
as needed to meet specific requirements,
in turn acting as a troubleshooting tool or
to access additional audit data quickly and

Product Sp e ci f i ca t i ons

Thermo Scientific Model 84i Mercurytt
Perm