SafePoint® Rotary
Paddle Point Level has Automatic Failure Indication
In the processing, production and
storage of powders and bulk solids the reliable monitoring
of high level conditions in bins and silos is important. With
the SafePoint® rotary paddle point level indicator,
if a failure is detected an output will indicate that
this condition exists, providing you the warning needed
to prevent a spill. If a level monitor fails
to function properly, large costs due to overfilling
of the silo can occur. The costs can include
material loss, cleanup, lost production and even regulatory
costs. This is why the SafePoint® point level sensor
from Monitor Technologies is the best choice for powder
and bulk solid processors worldwide.
The SafePoint detects material presence
plus continuously monitors its own ability to function.
This monitoring includes sensor health and system power
failure, which makes the SafePoint truly “fail-safe”.
The SafePoint incorporates patented use of Hall-effect
technology, dual outputs to indicate both material
presence and unit health, and microcontroller technology
to continuously protect bulk solids processing and
storage from the effects of unknown sensor failure
by providing immediate indication of a sensor failure
and confirmation of proper operation.
Other features of the SafePoint include
rugged construction, twist On/Off cover for bolt free
removal, motor shut-off when paddle becomes impeded,
and local status indicating light (on most models).
About Monitor
Monitor Technologies LLC is a pioneering
supplier of level measurement instrumentation, solids
flow monitors, particle emission monitors and aeration
devices for the worldwide powder and bulk solids markets.
The experience and market knowledge gained over 50
years of business has earned Monitor a reputation for
providing high quality and reliable product solutions.
Monitor is located in Elburn Illinois.
For more information please visit www.monitortech.com, www.flexar.info and
our blog at www.monitortech.typepad.com.
You can also contact Mr. Greg DeRudder or Mr. Chris
Otte of Monitor Technologies at 1-800-766-6486 in the
USA or 1-630-365-9403.
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.
