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The DT990 is the
full-function sensor designed specifically to meet EPA MACT
requirements. The DT990 is also our most sensitive model with a
minimum detection limit of 0.01 mg/m3. It conducts calibration
drift and dust build-up checks automatically and returns the results to
the Quality Assurance Screen. The DT990 comes with DustReporter 2
software for regulatory reporting. The DT990 is the most
cost-effective MACT solution because it minimizes labor for maintenance
and quality assurance activities.
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The DA550 is an economically
priced sensor that provides trends relative to dust concentration
without the QA features (dust build-up and calibration checks) of the
DT990. The minimum detection limit is about 0.1 mg/m3. The
DA550 system can be purchased with a single- or multi-sensor
controller. It can be used for MACT compliance, but significant
operator effort is required. The features on the DA550 are
comparable to competing DC-based triboelectric sensors, but the DA550
uses the patented electrodynamic signal processing technology.
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The SC600 is an
optically-based system for sensing dust concentration in applications
where charged-based systems are not appropriate such as after an
electrostatic precipitator or in an application with very sticky or
highly conductive particulate. The SC600 is similar to an opacity
monitor, but it uses scintillation technology to offset the zero drift
problems associated with opacity measurements. The minimum
detection limit for the SC600 is about 2 mg/m3. The control unit
contains sensor diagnostics and data storage. The SC600 can be
used with PCME DustReporter 2 software.
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The DX800 and DX810
use unique AC Electrodynamic technology. The DC signal created by
particles colliding with a probe inserted in a stack is electronically
filtered out, leaving an AC signal resulting from charged particles
passing and interacting with the rod. Since the signal includes no DC
component, the instrument has minimal cross sensitivity to changing
velocity (application dependent) and has increased stability even with
dust build up on the rod sensor. The dust signal is amplified,
digitised and processed at the probe, consistent with good signal to
noise design techniques. The processed signal is proportional to dust
concentration, although the exact correlation is application dependent.
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The DustSense 30 series is
based on PCME's unique patented TriboACE technology giving more
reliable operation than Triboelectric dust monitors. Once
installed in the emission stack or exhaust duct, the average background
level of particulate can be defined. The alarm levels can then be
set to a percentage or factor above this background reference
level.
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The DustSense 10 series of
advanced continuous particulate monitors are based on PCME's unique
patented TriboACE technology, giving added reliability and sensitivity
over standard Triboelectric systems. The DustSense 10's alarm
levels can be set as a factor or percentage of the background level of
particulate. The user has the ability to set the alarms to
instantaneous or average levels above the background or normal level of
emissions to indicate early warning of filter failure or gross failure
detection. Alarm delay and data averaging are user selectable.
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