Elburn,
IL - Monitor Technologies' SafePoint Fail-Safe
Rotary Paddle Bin Level Indicator provides the ultimate
in performance in point level applications. This state-of-the-art
rotary paddle features patent-pending magnetic sensing
technology and a unique housing design making it the
most reliable and technician-friendly sensor of its kind.
SafePoint utilizes
Monitor's magnetic sensing technology to continuously detect
both material presence and operational status. The rotation
of the unit's shaft is monitored by the detection of a
magnetized rotating disk (patent pending). Use of magnetic
sensing techniques eliminates problems that can occur with
the optical systems of other brands. Material sense and
fail-safe outputs are provided on all models.
The
unique housing design features a twist on/off cover, so
there are no more bolts to drop or lose. A local status
indicating light is located on the top of the unit for
ordinary location models. The SafePoint unit
also has two conduit entrances for wiring access.
In
addition, unlike most paddle units, the SafePoint incorporates
a feature that automatically shuts off the motor when the
paddle is impeded. This extends the life of the unit and
minimizes maintenance. The SafePoint is
also available with hazardous location approvals.
Elburn,
IL - Without the noise and damaging
vibration caused by pneumatic or electric vibrators, Monitor's
Evasser bin aerator promotes the flow of dry bulk powders
from a storage vessel. The compact, low-cost Evasser requires
virtually no maintenance and has an effective radius of
12 inches.
Several
configurations are available to fit the Evasser to most bulk
powders and granular solids applications. The Evasser itself
can be provided in either cast iron or 316 stainless steel
construction. While normally supplied with a black Neoprene
boot, a FDA approved white Neoprene boot is also available.
For high pressure or high temperature applications where the
boot is not acceptable, a sintered metal insert can be provided.
In addition, each of these configurations is available with
or without an external mounting plate.
Some
typical applications for the Evasser include cement, carbon
black and flour.
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,
etc.
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
level indication.
Principle of Operation for the TrueCap RF Capacitance Level
Probe:
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.