4-Pole Conductivity Probes
4-Pole sensors were designed for the measurement of liquid conductivity. The engineering design based on 4-electrode principle guarantees excellent linearity from 1 μS/cm up to 300 mS/cm. The main application for Conducell sensors is the in-line measurement under demanding conditions found in biotechnology and pharmaceutical applications.
Conducell 4UxF
Great linearity over a broad measurement range. Well suited for hygienic applications with standard PG13.5 threads as well as Varivent and Neumo BIOConnect options.
Conducell 4US
With Triclamp and G 1 1/4" process connections the Conducell 4US can be directly mounted into sanitary process fittings with no additional housing needed.
| Specification | Conducell 4UxF | Conducell 4US |
|---|---|---|
| Measuring Range | 1 µS/cm - 300 mS/cm | 0.1 µS/cm - 500 mS/cm |
| Measurement Principle | 4-pole | 4-pole |
| Operating Temperature Range | -20 – 150 °C (Arc: analog 0 – 110 °C, digital 0 – 130 °C) |
-20 – 135 °C |
| Pressure Range (bar g) | -1 – 20 bar (135 °C) -1 - 10 bar (140 °C) |
0 – 6 bar |
| Hygienic Aspects | Autoclavable, CIP, SIP | CIP, SIP |
| Cell Constant | 0.36/cm | 0.147/cm |
| Electrode Material | S=Stainless Steel 1.4435 H=Stainless Steel 2.4602 T=Titanium Pt=Platinum |
Stainless Steel 1.4435 |
| O-ring | EPDM | EPDM |
Specific Applications
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App Note - Arc sensors in oncologic and biosimilar applications
Innoxtorres, a Spanish bioreactor manufacturer took advantage of Arc sensor technology to integrate EasyFerm Plus and VisiFerm DO sensors directly into their control system. -
App Note - Arc DO, Cond in monitoring of heating & cooling systems
Hevasure, a sister company of Midland Corrosion Systems, protects HVAC assets by continuous monitoring dissolved oxygen and conductivity in the heat transfer liquids at various customers in UK.
Resources
Hamilton's knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.
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Brochure - Brewery
Learn about our control and analytical solutions that are essential to the brewing process. -
Manual - Conducell 4UxF Sensors
Manual for Conducell 4UxF sensors. -
Manual - Conducell 4US Sensors
Manual for Conducell 4US Sensors
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Does temperature affect conductivity measurement?
Yes, temperature has a direct impact on conductivity. Increasing temperature increases the mobility of ions within a solution and results in higher conductivity measurements. Temperature compensation can be performed using empirically derived temperature coefficients, which may be different for various solutions. -
Which liquid conductivity standard should I use for calibration?
A conductivity standard should be chosen that most closely matches the anticipated conductivity range of the process. -
What can I use to clean the conductivity sensor electrodes if fouling occurs?
The metal electrodes of 2 and 4-pole sensors can be cleaned with water and mild detergents and washed with deionized water after cleaning. Care should be taken to not use cleaning agents that can impact the material of the electrodes. Click to reference the knowledgebase article on cleaning for more information.
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Conductivity Sensor Cleaning
Care and maintenance of both 2-pole and 4-pole conductivity sensors are discussed in this brief article. -
4-pole Conductivity Sensor Mounting
Best practices for installation and mounting of Conducell 4-pole conductivity sensors.
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