14
Attention
Before carrying out the fault diagnosis please check:
Supply voltage:
Is the conductivity switch / controller supplied with the mains voltage specified on the name
plate?
Wiring:
Is the wiring in accordance with the wiring diagram?
Troubleshooting
Indication, diagnosis and remedy
Conductivity switch / controller does not work
Error
Remedy
Power failure.
Switch on supply voltage. Check all electrical connections.
The earth connection to the vessel is interrupted.
Clean seating surfaces and screw in the conductivity
transmitter together with the joint ring 17 x 21, form D,
DIN 7603 (made from 1.4301), bright annealed. Do not
insulate the electrode with hemp or PTFE tape!
Conductivity electrode defective, measured value too
low. Electrode lines interrupted or measuring surface
exposed.
Check connection of electrode lines. If necessary, replace
equipment. Check water level and installation.
Conductivity electrode defective, measured value too
high. Short circuit in electrode lines.
Check connection of electrode lines.
If necessary, replace equipment.
Malfunctions
Conductivity switch / controller does not work accurately.
Error
Remedy
Indicated conductivity reading is larger than the
measured reference value.
Reduce the correction factor CF.
Indicated conductivity reading is smaller than the
measured reference value.
Increase the correction factor CF.
Measuring result cannot be adjusted by changing the
correction factor.
Remove conductivity electrode and clean measuring
surface.
Attention
For commissioning and troubleshooting also observe the installation & operating
manuals for LRS 1-50, LRR 1-50 and LRR 1-52.
