Evoqua WALLACE & TIERNAN SFC, Original Instruction Manual

Page: 229 / 288

SFC
Maintenance
7.
229
7.7 Maintaining conductivity electrode
The electrode does not contain any maintenance parts. However,
depending on how dirty the sample water is, the electrode can be
cleaned at certain intervals. A routine schedule cannot be given
here because the cleaning schedule depends heavily on the
general condition of the sample water. In general, calibrate
approx. every 4 weeks.
If wiping with a soft, damp paper towel is not sufficient, use one of
the following chemical cleaning methods depending on how the
electrode is soiled:
Soiling Cleaning agent
Time needed at
room
temperature
Water soluble
substances Distilled water Any
Grease and oil Warm water and
household washing
liquid Any
Lime and
hydroxide
deposits Hydrochloric acid
(0.1 n) Any