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6. Faults
Faults
The tuning fork is not
covered with medium,
but there is a switching
process (incl. change in
voltage and status change
of the LED).
The actual switch
point deviates from the
previously set switch point.
The tuning fork is covered
with media but there is no
switching operation.
The tuning fork is
covered with media but
the switching status is
constantly changing.
WIKA operating instructions, models TLS-S, TLS-C, TLS-H
Causes
Supply voltage is too low
Electronics are defective.
Build-up on the tuning fork
For pipeline applications:
installation position not the
same as the flow direction
Density of the process
medium deviates from the test
medium (water)
The mechanics of the tuning
fork are damaged.
The mechanics of the tuning
fork are damaged.
Rapid level changes of the
process medium
Electronics are defective.
The mechanics of the tuning
fork are damaged.
Measures
Check the supply voltage
Contact the manufacturer.
Check the tuning fork for
contamination or build-up in
the area of the wetted parts
and remove.
Adjust the installation
orientation of the vibrating
level switch. (Align the tuning
fork in the flow direction of the
medium)
TLS-S: Switch point sensitivity
can be changed inside
the connection housing
corresponding to the process
medium.
TLS-C/H: No adjustment
of the vibrating level switch
possible on site. Contact the
manufacturer.
Contact the manufacturer.
Contact the manufacturer.
TLS-S: Switch point delay
can be changed inside
the connection housing
corresponding to the level
volatility.
TLS-C/H: No adjustment
of the vibrating level switch
possible on site. Contact the
manufacturer.
Contact the manufacturer.
Contact the manufacturer.
EN
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