WIKA LSD-30 - Manual (Page 25)

25 WIKA operating instructions level switch model LSD-30
GB
Error Description
ATT1 On changing the switch point, the system automatically reduces the reset point.
ATT3 Password entered for menu access is incorrect.
ERR Internal error
OL Sensor burnout
UL Sensor short-circuit
Acknowledgement of an error display by pressing the "Enter" key.
Problem Possible cause Measure
No output signal Cable break Check the continuity
No output signal/line break Mechanical load too high Replace sensor with a suitable design
No output signal No/wrong power supply Rectify the power supply
No/wrong output signal Wiring error Observe the pin assignment
Constant output signal upon
change in level
Specific gravity of the medium too low
Float jammed or damaged
Check the float for adjustment to specific
gravity
Check the output signal. Check the
instrument for contamination or defects
Signal span too small Power supply too high/low Rectify the power supply
Signal span drops Moisture has entered Assemble the cable correctly
Output signal not proportional to
the level
Specific gravity range of the float not
suitable
Check the S.G. specifications for the
float
Output signal interference Outer magnetic field Remove source of interference
If complaint is unjustified, we will charge you the complaint processing fees.
CAUTION!
If faults cannot be eliminated by means of the measures listed above, the instrument must
be shut down immediately, and it must be ensured that signal is no longer present, and it
must be prevented from being inadvertently put back into service. In this case, contact the
manufacturer. If a return is needed, follow the instructions given in chapter 9.2 "Return".
11613033.01 01/2012 GB/D/F/E
8. Faults