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Dinel, s.r.o. RFLS–28
The
high-frequency level sensor RFLS–28
is designed for industrial use for limit sensing of the
level of liquid and paste-like media. The high-frequency level sensor may be a direct replacement
of a vibrating level sensor, or of a capacitive level sensor in case of more demanding applications.
The media may be electrically conductive or non-conductive with any permittivity. It can be installed
in metal or plastic tanks, pipes, filling tanks, sumps, etc. using the TN-28 extension tube, or similar.
The sensor works in the high frequency band, enabling reliable detection of the level of media, and
eliminating deposits or foam on the electrode. The sensor suppresses the influence of deposits of
viscous media (ketchup, yoghurt, pastes, syrups, jams and jellies, creams, soap) as well as electri
-
cally conductive adhesive products (detergents, lye, chemicals).
The sensor can be set by applying a magnetic pen to sensitive surfaces, or by means of a program
-
ming wire (variant RFLS-28 _-_-_- PD -_- MW). For sensors with the possibility of remote param
-
eterization, only basic settings (resolution of two interfaces) can be performed. A special evaluation
unit SSU-1212-AD must be used for remote parameterization of the sensor.
The sensor can be set up by applying a magnetic pen to sensitive spots.
•
simple sensing of the presence of the medium (medium / air)
•
resolution of the interface of two media (medium / medium), e.g. water / oil
•
selective resolution of a specific medium (Medium window function), the function can distin
-
guish e.g. oil from water and air, detect only beer foam and ignore beer and air, etc.
The sensor is made from a stainless steel housing at one end terminated by a sensing electrode,
and terminated at the other end and by an enclosure with a status indicator, control elements and
electrical connection. The setting elements are on the sides of the sensor. The sensors are manu
-
factured only for use in non-explosive areas.
1 . Basic description
2 . Variants of sensors
VARIANTS
name
minimum
temperature
type
RFLS–28_–1B
from -40°C
O-ring NBR, for sensing various liquids, mashed
and paste-like materials, appropriate also for oil
RFLS–28_–10B
from -40°C
with protective crown, O-ring NBR, for sensing various liquids,
mashed and paste-like materials, appropriate also for oil
RFLS–28_–1E
from -40°C
O-ring EPDM, for sensing various liquids, mashed
and paste-like materials, appropriate also for acids or bases
RFLS–28_–10E
from -40°C
With protective crown, O-ring EPDM, for sensing various liquids,
mashed and paste-like materials, appropriate also for acids or bases
RFLS–28_–1V
from -20°C
O-ring FPM (Viton), for sensing various liquids, mashed and paste-like
materials, appropriate also for oil, acids, bases or asphalt and tar
RFLS–28_–10V
from -20°C
with protective crown, O-ring FPM (Viton), for sensing various liquids,
mashed and paste-like materials, appropriate also for oil, acids,
bases or asphalt and tar
