E-42
ElektroPhysik
17. Maintenance
Please keep the instrument clean. Avoid spilling solution
on the instrument or on the accessories.
The inner and outer measuring cells and power leads
must be kept clean to ensure error free operation.
Before filling in fresh solution, rinse the measuring cell
and rubber gaskets using distilled water. If the same
solution is used for the next measurement, it is sufficient
to clean the bottom side of rubber gasket after each
measurement.
The outer measuring cell may build up residue or metal
deposits after several measurements. This generally
does not affect measurement. It will be sufficient to rinse
the measuring cell with distilled water.
In case of very strong pollution or routinely once a month,
the outer measuring celll should be cleaned in a solu-
tion of 4 parts concentrated sulphuric acid (Caution:
caustic) and one part concentrated nitric acid. They
should be immersed in the solution for not longer than
10 to 15 seconds and then rinsed under running water.
The procedure can be repeated if necessary until the
components are clean and shiny after which they should
be tried and polished.
4.
Instrument does not switch off, no analogue meter
deflection:
-
unsuitable solution
-
Coating has been removed within the first three
seconds, i.e. de-plating speed is too high.
5.
Instrument does not switchoff, but clear meter
deflection:
-
sensitivity too high
6.
Coating not properly removed:
-
sensitivity too low
7.
Wrong measuring result:
-
check steps 2., 3. and 6. (section 16)
-
instrument misadjusted, no or wrong calibration
-
unsuitable solution
8.
On switch on the instrument does not show any
setting, statistics, date and time are deleted:
-
Lithium buffer battery discharge.
Please send the instrument to ElektroPhysik.
If the problem cannot be solved by means of above
steps, please contact your dealer or ElektroPhysik
customer support.