LM80 laser transmitter for non-contact level measurement


K-TEK, a leading manufacturer of
state-of-the-art level instrumentation for liquid and bulk solids detection,
today announced the LM80 laser transmitter for non-contact level measurement
and positioning. Designed for a variety of applications, the LM80 measures
position over very long ranges, at distances up to 500 feet (150 meters).
The device also accurately measures level at distances up to 100 feet (30
meters). Whether handling plastics, coal, grain, or aggregates, the LM80 can
measure any solid surface at any angle. The small wavelength of the laser
means a narrower beam with virtually no beam divergence and, therefore, no
false echoes. This provides high accuracy readings even when dealing with
the most challenging circumstances, such as measuring into silo cones, even
inside silo chutes and through narrow openings in protective grids. The LM80
can be installed on any existing silo nozzle, three inches or larger,
regardless of location.

The LM80 features an all-digital design that provides speed and accuracy in
a compact unit. An advanced timing system and self-correcting signal
processing functions allow the device to accurately and reliably make
measurements in the harshest conditions. The system can select the true
signal even in the presence of dust, as is commonly found in silos of coal,
plastics, or grain, as well as in underground mines or quarries.

"This LM80 combines a number of advanced technologies into a single, unique,
reasonably priced measurement device, going far beyond where other
measurement technologies leave off," said Ivo Radanov, Product Manager for
Lasers at K-TEK. "The laser provides unheard of flexibility and accuracy
when compared with traditional level devices. Virtually any surface can be
measured at any angle with pinpoint accuracy. No beam angle divergence means
the transmitter can be narrowly focused over long distances without
interference from its surroundings, such as internal structures. No false
echoes and no reflections mean complete immunity to 'cone up,' 'cone down,'
and angle of repose variations in the material being measured. The LM80 is
being installed in hundreds of level or positioning applications. The unit
is simple to install and use and is maintenance-free."

Color Compensation & Last Pulse Detection

The advanced signal processing software in the LM80 automatically
compensates for color differences in the materials being measured. The
device is able to easily distinguish between dark color surfaces such as
coal, and light color surfaces such as plastic pellets and aggregates. The
unit can also measure the position of moving targets over long distances,
such as overhead cranes and tripper cars. Thus, one unit can handle both
long distance positioning and level measurement applications at one-third
the price of competitive models.

The LM80 includes last pulse detection, which selects true signals from
among the many that are reflected from dust clouds, agitator blades, or
other obstacles. Variable gain allows the device to select the best return
signal in quickly changing visibility conditions, such as dust, vapors, and
materials of different colors. A built-in filtering system allows the unit
to handle rapid level tracking applications, such as rock crushers or
aggregate process hoppers, as well as slow moving levels, such as in
inventory silos.

The laser transmitter is housed in a powder coated aluminum enclosure, IP66
rated. It is FM certified for Class I Div 2 Group A,B,C,D and ATEX for Ex nA
nC II T4. Dual internal compartments isolate the optical components from the
wiring terminations, eliminating the possibility of moisture buildup and
errant readings. Stainless steel dust tubes with built-in purge port prevent
dust build-up and protect the optical lens from being coated.

The LM80 is a compact, stand-alone unit that is quick to set up and install.
It requires no calibration or special configuration. The unit is easily
programmed with a compact handheld device. An optional laser pointer
provides precise alignment. Portable mounting options allow users to
position the laser in any direction.


* Long Range to 500 ft. / 150 m (positioning applications) and Up to 100 ft. / 30 m (level applications) * No Beam Divergence = No False Echoes * Measures any Surface at any Angle with Narrow Beam * Rugged and Robust Enclosure * Built-in Purge Port (1/8" FNPT) * Last Pulse Detection for Measurement with Light Dust * Ideal for Plastic Pellets, Grain Silos, Food Processing Industry, Crushers & Rock Silos, Indoor/Outdoor Positioning Applications- Overhead Crane, Tripper Cars * Optional: Variety of Mounting Solutions
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