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Verfügbare Sprachen
Verfügbare Sprachen
Actuating direction of the analogue output signal
Change-over switch „output" in right position
Change-over switch „output" in left position
• After adjustment one can check the function of the output circuit by means of the change-over switch. This
can be done only when the container is empty or completely full. Depending on the position (on the right or
the left) the output value has to be in the Max. or Min-range.
Time delay
The potentiometer „time constant" allows a damping to take place which prevents level fluctuations due to
processing from reaching the output as a disturbance.
Potentiometer left max. position
Potentiometer right max. position = max. damping of the output signal.
The potentiometer does not have a mechanical end stop. The minimum or maximum is achieved with 20
turns.
Initial operation - Problem solution
With empty container the output value has to be in the Max. or Min-range depending on the selected operat-
ing direction.
If the adjustment has been carried out correctly, when the container is filled and the reference range is covered
the lowest green LED will switch on and the relay „SIGNAL ALARM" will be activated.
If the volume within the measuring range increases, three further LED's switch on depending on the filling
height. They display the tendency of the level „low" (yellow), „middle" (green) and „high" (yellow).
If there is a powerfailure or if the filling level falls below the reference range the relay „Signal Alarm" is
released.
Problems during the filling?
If the lowest LED (green) will not switch on during the filling of the reference range, either the mounting is
wrong (connection probe - evalutuion unit), or a wrong adjustment, or the dielectric constant of the medium
ε
is < 1.25.
r
Possible test: touch the reference range of the probe with the hand or with an earthed metal object. If the
green LED switches on the function of the measuring system is correct. Information relating to the measure-
ment of the dielectric constant of the medium is given on this page.
18
=
=
= no damping of the output signal.
output signal increasing
container empty = output signal min.
container full = output signal max.
output signal decreasing
container empty = output signal max.
container full = output signal min.
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