Faults - WIKA RLS-7000 Mode D'emploi

6. Faults

6. Faults
EN
Faults
No signal / incorrect
switching function
Incorrect NO/NC
switching function
Model RLS-7000
Model RLS-8000
Float switch cannot
be mounted at the
planned place on
the vessel
16
The following table contains the most frequent causes of
faults and the necessary countermeasures.
Causes
Vessel wall too thick
Float jammed
Float is not floating
Switch is switching
without the float moving
Electrical connection
incorrect
Moisture in the
electronics
Cable damaged
Reed contact defective
Incorrectly mounted float Turn the float through 180°
Incorrect direction of the
float switch
Process connection of
the float switch does
not match the process
connection of the vessel.
Process connection at
the vessel defective
WIKA operating instructions models RLS-7000, RLS-8000
Measures
Check the mounting situation
Check the suitability of
the medium, clean the
contamination off the switch
Density of the medium is
too low, check material and
product selection
Shield from external magnetic
field
see 5.3 "Electrical connection"
Check assignment with the
aid of the connection diagram
Check the resistance of the
material
Instrument replacement
Instrument replacement
Turn the instrument half way
around (180°), as per the
marking on the switch
Modification of the vessel;
Rework the thread or replace
the screwed coupling
Rework the thread or replace
the screwed coupling