Cable Resistance - Radiometer Analytical TitraLab 870 Reference Manual

TitraLab ®
Cable
resistance
A cable has a given length, therefore a given resistance. When the
measured resistance is low (below 50 Ω ), the cable resistance is not
negligible and must be taken into account.
Enter the cable resistance when:
• measuring low resistances (below 50 Ω ) or high conductances
(above 20 mS).
• using a 2 or 3-pole conductivity cell.
The cable resistance is normally specified by the manufacturer.
Cable resistances of a few Radiometer Analytical conductivity cells
are given below:
Conductiivity cell
CDC511T
CDC861T
CDC565
CDC749
CDC267-9 with cable A94L136
CDC267-9 with cable A94L336
CDC241-9 with cable A94L136
CDC241-9 with cable A94L336
XE100 with cable A94L136
XE100 with cable A94L336
Figure 14: Cable resistances of Radiometer Analytical conductivity cells
If you create a conductivity cell from the Catalogue list, the
cable resistance is automatically assigned to the
conductivity cell created (and cannot be modified).
Enter 0 for the cable resistance of a 4-pole conductivity cell
(whatever the conductivity cell used).
Enter in:
When creating an electrode with the Conductivity function and the
option From = Other.
Refer to "Create electrode", page
Available limits:
0.000 to 9.999 Ω
TitraLab 870 Reference Manual
Cable resistance ( Ω )
0
0
0
0.180
0.145
0.350
0.145
0.350
0.145
0.350
87.
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