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General description
Capacitive Level probe for level control of 1 (KFI-5-1...ETW) or 2 (KFI-5-2...ETW) measuring points. This
probe which has its evaluation electronics integrated in the sensor’s head is based on our patented 3 elec-
trode measuring principle. This measurement is made between the measuring electrode in the probe and
a metal container wall (or additional electrode). The measuring area is defined by means of inactive areas
that are placed above and below the defined measuring area. An earthed container wall is normally used
as the BE electrode. If the container is not made of metal, an earthed metal foil or other machine parts can
serve as the additional electrode, whereby one has to make sure that the length of the additional electrode
is the same as the length of the measuring range you wish to measure. Furthermore the additional electrode
(BE electrode) should have the same width and distance to the probe over the measuring range you wish
to measure.
During initial setup, the i-Level probe automatically calibrates itself to the basic capacity of the container.
The following measurements can be made with the compact i-Level probe:
KFI-5-1...ETW = 1 Switching Point
KFI-5-2...ETW = 2 Switching Points
EN
Measuring area
Switching point S2
adjustable
Earth connection of the con-
tainer or counter electrode on
the container
Probe rod
BE-connection via
cable connection
Optional holder for
connection head,
material VA or AL
Cable 5 x 0,34 mm²
LED green
IB3 =
73 mm
IB1 = 7 mm
Probe length (L)
Switching point S1
adjustable
BE
Position of the switching
points S1 or S2 free adjust-
able within the measuring
range
Power Supply
IB2 =
50 mm