34
© 2012 by Proceq SA
10.2 Accessories
330 00 259
Canin
+
Rod Electrode copper/copper sulphate
330 00 322
Telescopic extension for Rod Electrode, with 3 m cable
330 01 001
Canin
+
1-Wheel Electrode
330 01 004
Canin
+
4-Wheel Electrode
330 00 286
Cable coil, l=25 m (82 ft), with clamp (Required for potential measurements)
330 00 320
Felt hoop for Wheel Electrode Canin
+
380 02 520
Canin
+
Wenner Probe with cable
380 04 250
Test block for resistance-probe
330 01 224
O-Ring 120 X 5 mm
330 00 285
Copper sulphate 250g
330 00 290
Citric acid 250g
330 00 470
Protective sleeve for display instrument
330 01 225
Cable clip for telescopic extension
380 02 508 S
Foam pad to resistance probe, set of 4 pcs.
11 Maintenance and Support
11.1 Functional check of the electrodes
Correct function can be checked by use of a reference electrode.
Reference Electrode
Electrode cable
Display instrument
Wooden Plug
Cable roll
GND
Input A
Fig 11.1 Functional control set-up
Fig 11.1 shows a wheel electrode under control. The Rod Electrode is used as reference electrode
and the potential of the two electrodes cancel each other out. For correct operation, the tolerance
values indicated below should be observed.
Tolerance values:
Reference electrode with Rod Electrode
0 ± 5 mV
Reference electrode with wheel electrode
0 + 20 mV
If the electrode is out of tolerance, clean it as described below and redo the functional test.
