GESTRA LRG 16-9, Руководство по установке

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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 21 x 26, 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.
Temperature sensor defective, temperature reading
too low.
Check conductivity electrode LRG 16-9 and, if necessary,
replace it with a new one. Check wiring (short circuit,
interruption?)
Temperature sensor defective, temperature reading
too high.
Indication of malfunctions
Conductivity switch / controller does not work accurately.
Error Remedy
Indicated conductivity reading is larger than the
measured reference value.
Increase temperature coefficient tC during commissioning.
Reduce correction factor CF during operation.
Indicated conductivity reading is smaller than the
measured reference value.
Reduce temperature coefficient tC during commissioning.
Increase correction factor CF during operation.
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 1-7, LRS 1-50, LRR 1-50 and LRR 1-52.