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Conductivity Cells

It is important to choose a cell with the right construction and geometry for your particular application and working conditions. Radiometer Analytical offers conductivity cells for a wide variety of applications. 2-pole cells have a traditional design based on two plates of platinum. They are ideal for routine measurement of conductivity and for use with a sample changer due to the easy rinsing. 3-pole cells consist of 3 platinum rings which facilitate optimal shielding during measurement.

Radiometer Conductivity Cells

Applications 

General purpose  General purpose  General purpose  General purpose 
         
Model  CDC536T  CDC836T  CDC641T  CDC745-9 
Probe part no.  E61M021  E61M020  E61M022  E61M013* 
Body material  Epoxy1  Epoxy1  Glass  Epoxy 
Cell constant (cm-1)  1.0  1.0  0.85  1.0 
Number of poles  3 3 2 2
Platinised  NO  YES  YES  YES 
Temperature included  YES  YES  YES  NO 
Max. temperature  80°C  80°C  100°C  100°C 
Diameter  12 mm  12 mm  12 mm  12 mm 
Minimum sample depth  35 mm  35 mm  14 mm  14 mm 


Applications 

General purpose  Sample changer  Resistant media  Viscous Titration 
         
Model  XE100  CDC741T  CDC267-9  CDC241-9 
Probe part no.  B60E100*  E61M023  E61M011*  E61M008* 
Body material  Glass  Glass  Glass  Glass 
Cell constant (cm-1)  1.0  1.0  0.1  1.0 
Number of poles  2 2 2 2
Platinised  YES  YES  NO  NO 
Temperature included  NO  YES  NO  NO 
Max. temperature  100°C  100°C  100°C  100°C 
Diameter  12 mm  12 mm  12 mm  12 mm 
Minimum sample depth  10 mm  10 mm  26 mm  10 mm 

*Screw cap electrode. Requires CL143connection cable (part no. A94L143) for sensION+ meter compatibility

Recommended conductivity cells by application

Applications/Characteristics  CDC566T CDC866T CDC565 CDC641T
Wide conductivity range (general purpose) x x x
Various aqueous and non-aqueous media x
Very strong acids and bases
Use with sample changer
Built-in temperature sensor x x x
Continuous measurements x
Microsamples
Flow measurements
Titration
Salinity (high conductivity) x
Pure water
Meets requirements of USP 24-NF19 x
Meets requirements of EP 2.2.38 x
Use in glass tubes
Plastic body x x x
Viscous media
Highly resistant media
Field use x x x


Applications/Characteristics  CDC745-9 XE100 CDC511T CDC741T
Wide conductivity range (general purpose)
Various aqueous and non-aqueous media x
Very strong acids and bases
Use with sample changer x
Built-in temperature sensor x x
Continuous measurements x
Microsamples
Flow measurements x
Titration
Salinity (high conductivity)
Pure water x
Meets requirements of USP 24-NF19 x
Meets requirements of EP 2.2.38
Use in glass tubes
Plastic body x x
Viscous media
Highly resistant media
Field use x

 

Applications/Characteristics  CDC861T CDC267-9 CDC241-9 CDC749 CDC104 CDC304
Wide conductivity range (general purpose) x
Various aqueous and non-aqueous media x x x
Very strong acids and bases x
Use with sample changer
Built-in temperature sensor x
Continuous measurements x
Microsamples x
Flow measurements
Titration x
Salinity (high conductivity) x
Pure water
Meets requirements of USP 24-NF19
Meets requirements of EP 2.2.38
Use in glass tubes x
Plastic body
Viscous media x
Highly resistant media x
Field use


Some tips

  • Conductivity measurement is temperature dependent (if the temperature increases so does the conductivity value). When performing conductivity measurements, it is advisable to choose a cell with a built-in temperature sensor or use a separate sensor.
  • Remember to calibrate your conductivity cell regularly as the cell constant may vary due to changes in electrode surface due to contamination, for example.
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Malin Henriksson
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Malin ansvarar för våra produkter från Cole-Parmer, Integra Biosciences, Büchi och Sotax och är stationerad i Göteborg.