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Gerrie Rockwell Automation Group – Instrumentation Inline Conductivity Monitoring for Smarter Process ControlAnderson-Negele ILM-4 inductive conductivity monitors provide fast, hygienic and accurate inline measurement for phase separation, CIP/SIP control, product verification and chemical concentration monitoring. Contact the Team Explore the Benefits |
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Real-Time Conductivity Measurement
Know Exactly What Is Moving Through Your Process
Conductivity measurement allows processors to distinguish product, rinse water, acids, caustics and other process media directly in the pipeline. The Anderson-Negele ILM-4 provides continuous conductivity and temperature measurement so automation systems can react to actual process conditions instead of relying only on timers or manual sampling.
Key Benefits
Why Choose the Anderson-Negele ILM-4?
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Fast ResponseResponse times as fast as approximately 1.2 seconds support precise phase separation and rapid control decisions during process transitions. |
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Wear-Free MeasurementInductive conductivity sensing avoids electrode wear and polarization issues associated with contacting conductivity technologies. |
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Wide Measuring RangeMeasurement from approximately 0 to 1,000 mS/cm supports applications ranging from product differentiation to concentrated cleaning chemicals. |
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Modern ConnectivityFlex-Hybrid technology combines IO-Link and 4–20 mA signals for integration with both modern digital automation and existing PLC systems. |
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ILM-4 Conductivity Monitor Hygienic Inductive Measurement for Demanding ProcessesThe ILM-4 uses an inductive measuring principle that does not require exposed measuring electrodes. This provides stable performance in demanding hygienic applications and reduces maintenance associated with electrode contamination or deterioration.
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Process Performance
Built for Fast, Repeatable Conductivity Measurement
| Conductivity Range | Approximately 0 to 1,000 mS/cm for broad process-media coverage. |
| Response Time | As fast as approximately 1.2 seconds for rapid phase detection and control. |
| Reproducibility | Up to approximately ≤0.2% depending on configuration and operating conditions. |
| Communication | Flex-Hybrid output with IO-Link and 4–20 mA available simultaneously. |
| CIP / SIP | Designed for hygienic cleaning and sterilization processes, with supported configurations suitable for temperatures up to approximately 150°C. |
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Phase Separation Recover More Product and Reduce WasteDifferent liquids often have significantly different conductivity values. Inline conductivity measurement allows the control system to recognize those differences and automatically route product, rinse water and cleaning solutions to the correct destination.
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CIP / SIP Optimization Control Cleaning Based on Actual Chemical ConditionsConductivity is an effective way to identify water, caustic solutions, acids and other cleaning media during CIP cycles. Instead of relying solely on fixed times, the automation system can switch phases when the measured conductivity reaches the required condition.
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Flex-Hybrid Technology
Bridge Existing Controls and Modern Digital Automation
The ILM-4 can provide traditional analog signals while simultaneously supporting IO-Link communication. This allows processors to modernize instrumentation without necessarily replacing the entire control architecture at once.
4–20 mAIntegrate conductivity, temperature or concentration measurements into traditional PLC and control architectures. |
IO-LinkAccess digital process information, diagnostics and device parameters from compatible automation platforms. |
DiagnosticsDigital device information can support troubleshooting, commissioning and maintenance activities. |
Flexible MigrationMaintain analog compatibility while preparing process instrumentation for more connected automation strategies. |
Common Applications
Conductivity Measurement Across Hygienic Processing
Food & BeverageDifferentiate product and water, monitor cleaning media and support automated phase separation in sanitary production lines. |
Dairy ProcessingSupport product recovery, CIP chemical control and accurate routing during milk, cream, whey and cleaning transitions. |
CIP / SIP SystemsIdentify rinse water, caustic and acid phases while supporting chemical reuse and optimized cleaning sequences. |
Pharmaceutical & Life SciencesMonitor process liquids, WFI-related systems and cleaning cycles where hygienic construction and repeatable measurement are essential. |
Process Efficiency
Use Real-Time Conductivity to Make Better Process Decisions
The Anderson-Negele ILM-4 combines fast conductivity measurement, integrated temperature compensation and hygienic inductive sensing to give operators a clear picture of what is moving through the process line.
For food, beverage, dairy and life-science processors, that information can support better product recovery, more efficient CIP cycles, lower water and chemical consumption and more consistent process control.
Need Help Selecting Instrumentation?
Contact the Gerrie Rockwell Automation team for support with hygienic pressure measurement, sanitary process connections, application selection, and system integration.