Anderson-Negele Hygienic Conductivity Sensors — Authorised Distributor in Singapore
iSensors International is the authorised distributor of Anderson-Negele hygienic conductivity sensors in Singapore and South-East Asia. We supply the Anderson-Negele ILM-4 inductive conductivity sensor range — including the standard direct-mount ILM-4 and the ILM-4R remote version — to food, dairy, beverage, brewery and pharmaceutical customers across Singapore.
Unlike contacting conductivity sensors, the ILM-4’s inductive (toroidal) measurement principle eliminates electrode deterioration and polarization, delivering long-term stability and repeatability of ≤ 1% even in aggressive CIP media. Its integral PT1000 temperature sensor removes the need for a separate temperature transmitter, while the Flex-Hybrid IO-Link + 4–20 mA output supports both legacy analogue systems and modern IO-Link masters. The ILM-4R remote version separates the electronics head from the sensor with up to 30 m cable, ideal for confined or high-temperature installation points.
Contact our Singapore team for product selection, pricing and technical support.
| Feature | Inductive (ILM-4) | Traditional Contacting |
|---|---|---|
| Electrode Wear | None — no electrodes in contact with media | Electrode deterioration and polarization over time |
| Aggressive Media | Fully compatible — CIP acids, caustics, sanitizers | Accelerated electrode damage in aggressive media |
| Coating / Fouling | Inductive toroid self-compensates for minor deposits | Coating on electrodes causes measurement errors |
| Response Time | 1.2 seconds for phase transition detection | Typically slower; depends on electrode geometry |
| Temperature Output | Integral PT1000 — no second sensor needed | Usually requires separate temperature transmitter |
ILM-4 Inductive Conductivity Sensor
The ILM-4 is the industry standard for hygienic in-line conductivity measurement, automating phase transitions in dairy, beverage and food processes with a very high degree of accuracy. Its all-in-one sensor-transmitter design integrates conductivity measurement, temperature sensing (PT1000) and signal processing in a single compact unit, making commissioning fast and simple.
Inductive (toroidal) measurement eliminates electrode deterioration and polarization, ensuring long-term stability in aggressive CIP media. Two independently configurable 4–20 mA outputs can be assigned freely to conductivity, temperature or concentration. A freely configurable concentration table allows direct output in % concentration for CIP chemicals, sugar solutions, saline and more.
ILM-4R Inductive Conductivity Sensor Remote
The ILM-4R is the remote version of the ILM-4, separating the sensor toroid from the electronics head via a cable of up to 30 m. Designed for installations where the process connection is in a confined, high-temperature or difficult-to-access location, while the display and wiring connections can be positioned for easy operator access and maintenance.
All ILM-4 capabilities are retained in the remote configuration — inductive measurement, integral PT1000, dual configurable 4–20 mA outputs, IO-Link, concentration table, digital range-switching input and optional Simple User Interface (SUI) or Large User Interface (LUI) displays. The remote cable (PVC, 8-pin, twisted pair) is available in 1-metre increments up to 30 m.
| Application | Industry | What ILM-4 Measures | Benefit |
|---|---|---|---|
| CIP Monitoring | All hygienic industries | Caustic / acid concentration, rinse water purity | Confirms cleaning effectiveness, reduces water & chemical waste |
| Phase Transition Detection | Dairy, Beverage, Brewery | Product / water / CIP boundary | Automates divert valves; prevents product loss & cross-contamination |
| Concentration Control | Food, Pharma, Beverage | Sugar, saline, caustic, acid % concentration | Direct concentration output from freely configurable table |
| Product Quality | Dairy, Brewery | Conductivity as a quality indicator (e.g. milk solids) | Real-time quality verification without lab sampling |