
Kenco Engineering
Sight Glass – A sight glass is a level indicator that
utilizes some kind of see through material such as glass or clear
thermoplastic to actually see the product being measured. Typically
sight glasses are used when direct visual observation of process fluid
is required.
Magnetic Level Gauge – A magnetic level gauge is often
used in applications where, in the past, a sight glass may have been
used. It utilizes a chamber, a magnetic float and a magnetic flag
assembly. The chamber mounts where a sight glass would have, typically
a top and bottom process connection, the float rises and falls
inside the chamber with the liquid level and magnetically communicates
it’s position in the chamber to the flags on the outside of
the chamber for the operator to see. There are also switches and transmitters
that can be attached to these devices without making process connections.
Magnetostrictive – A magnetostrictive transmitter is
a level transmitter that can be used as a stand alone insertion device
or as an accessory to a Magnetic level gauge. The heart of the transmitter
is the Waveguide which then has a magnetic float in close proximity
to it. A pulse is induced in the waveguide by the momentary interaction
of two magnetic fields, one from an electric current pulse launched
along the waveguide and the other magnet inside the float. This interaction
produces a strain pulse that travels along the wave guide. The location
of the magnetic float is determined by measuring the elapsed time
between the launching of the electronic pulse and the detection of
the strain pulse by the sensor head. The time period measurement is
used to produce a 4-20mA output.
Acoustic Wave or Ultrasonic – The transducer emits acoustic
(sound) waves. These acoustic waves are directed through the air toward
the process media surface. They are then reflected off of this surface
and returned to the transducer. Then the received waves are converted
into an electric signal.
The time difference between the transmitted wave and the received
wave is proportional to the distance from the face of the transducer
to the process surface.

UWT
Rotary Paddle – Level limit switch that is insensitive to dust,
electrostatic charging, caking and temperature. Paddle switches are
reliable and simple principle of function, a robust design with a
large terminal space. These switches are certified for hazardous locations
gas and dust, FM, CSA, ATEX. There are different designs available
with various extensions and can be used as full, demand and empty
detector.
Vibrating Fork – Level switch that is suitable for a wide range
of level monitoring applications in granulated and powdered bulk goods
starting from as light as 0.3 lbs. per cubic foot. These forks are
offered in a modular design, maintenance free, various extensions,
Hazardous area approvals and can be used as full, demand and empty
detector.
Plumb Bob – Continuous contact level measuring system suitable
for bulk goods and interface detection. The electromechanical system
is very accurate measurement of level heights or level volumes over
large measuring distances (up to 98 feet). Tape and rope versions
are available with different sensing weights for all kinds of applications.
Acoustic Wave – Continuous, non-contact level measurement
for solids and liquids for measuring ranges up to 197 feet. Acoustic
wave offers precise measurement even in aggressive media and at process
temperatures up to 300F. The sensors are highly accurate, have superior
performance, map false echoes, intelligent echo evaluation, temperature
compensation plus easy mounting and commissioning.
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