30
Malfunctions
– continued –
1. Unscrew cover screws
B
and remove housing cover
D
.
2. Pull electrode wires from terminal lugs
K
on circuit board. Detach terminal strip
F
.
3. Undo the functional earth
H
connection.
4. Unscrew the fixing screws
G
for the electronic insert and take out the insert. The electronic insert is
available as spare part (type LRV 1-40) for LRGT 16-1, LRGT 17-1, type LRV 1-42 for LRGT 16-2.
5. Install the new electronic insert in reverse order.
Exchanging the electronic insert
Note
Please indicate the version and material numbers stated on the name plate when ordering
spare parts.
After replacing the electronic insert check the conductivity readings of the controller
KS 90-1 by carrying out a comparison measurement.
If you encounter any deviations, correct the cell constant of the conductivity transmitter.
If faults occur that are not listed in the fault-finding list or cannot be corrected,
please contact our Technical Services or authorized agency in your country.
