IL – Dust collectors (baghouses)
do not always operate at optimal efficiency. Filter
material degrades, bags begin to tear and sometimes
they fail catastrophically. To avoid dust emissions
that exceed regional and federal EPA mandates,
and to assist with preventative maintenance, many
industries and manufacturers have used the DustAlarm® broken
bag detector from Monitor Technologies LLC.
state-of-the-art instrument uses triboelectric
detection techniques to continuously monitor the
emissions within the exhaust dust of your baghouse.
The DustAlarm can help reduce maintenance costs,
can keep clean-up costs to a minimum and help ensure
you are complying with EPA regulations and mandates.
Today’s DustAlarm broken bag detector includes
features such as:
Proven triboelectric technology.
Protect blowers from damage and replace filters
High voltage AC (115/230VAC) and low voltage
power supply (10-32VDC) available.
Adjustable sensitivity, alarm setpoint and time
Integral electronics assembly or remote electronics
Quick-disconnect mounting is standard for easy
316 stainless steel probe with specially designed
Handles up to 450∞ F (232∞ C)
process temperatures with remote electronics
to try a DustAlarm broken bag detector on your
dust collection system? Ask us about our 60-day
Let us help you by putting our
creative solutions to work for you today.
The TrueCap® Model MK-2
RF Capacitance point level probe is designed to provide a superior
and stable sensitivity threshold making it suitable for a variety
of powder / bulk solids and some liquid or slurry applications.
Advanced features of the Model MK-2 include: > Automatic immunity to material build-up on
the probe by its driven shield design > Push-button calibration > Enhanced temperature compensation > Maximized reliability via smart sensing algorithms
like “self-validating” fail-safe protection > Visible status LED on ordinary location units > Versatility through a variety of configuration
options including: hazardous location version, split architecture
design, quick-connect process connection, stub probe, cable extensions,
solid extensions, Nylon® probes, Ryton® - equiv. probes,
A practical application for the TrueCap would be to use this level sensor where
a residual material build-up on a different sensor would cause a false material
Principle of Operation for the TrueCap RF Capacitance Level
The vessel wall and the active probe element establish an impedance reference
between each other when exposed to air which has a dielectric constant of 1.
When materials with a dielectric constant greater than 1 are in close proximity
to the probe, the impedance of the sensing field between the sensor and the vessel
wall will change. Once the amount of change exceeds a threshold that was electronically
determined during the calibration process, an output relay will either be energized
or de-energized depending upon the position of the fail-safe selector on the
probe’s electronic circuit board. A change of as little as .5 pico-farad
is all that is necessary for the probe to sense the presence of material.