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3.3 Cleaning Conductivity Cells
Before installing a conductivity cell, clean the electrodes as
follows.
3.3.1 Stainless Steel Conductivity Cells
Unscrew the outer electrode and thoroughly clean it with a
nylon-bristle brush (supplied) and a warm detergent solution.
Clean the central electrode in a similar manner, taking care not
to damage it. For more tenacious deposits a 2% hydrochloric
acid solution may be used. Rinse thoroughly with distilled
water after cleaning. The electrodes should have a dull,
frosted appearance which must not be removed by polishing
or abrasive cleaning. Refit the outer electrode.
3.4 Installing the Conductivity Cells
Caution. After
cleaning
conductivity cell, ensure it remains filled with liquid and is
not allowed to dry out.
3.4.1 Bulkhead Socket – Fig. 3.7
✶
Note. Used with cell types 2278. Mount the
socket at a convenient location close to the cell.
Dimensions in mm
M20
2 Fixing Holes
Conduit
5mm dia.
Gland Entry
89
83
Fig. 3.7 Bulkhead Socket
and
installing
a
70
76
100
Clearance
for removal
of plug
3 MECHANICAL INSTALLATION
3.4.2 Model 2278 Cell Dimensions – Fig. 3.8
Dimensions in mm
Gasket
Welded
Collar
22 dia
50
95
Fig. 3.8 Model 2278 Cell Dimensions
Tri-Clamp
63.5
200
7
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