Introduction to the Indumax CLS50D
The Indumax CLS50D is a state-of-the-art digital inductive conductivity sensor—part of the Memosens sensor family—designed for highly accurate, reliable measurement of conductivity in a variety of demanding industrial environments.
Key Applications
- Chemical Industry: Ideal for measuring concentrations of acids and bases, and monitoring the quality of chemical products in both tanks and pipes.
- Food & Beverage and Life Sciences: Effective in phase separation of product mixtures within piping systems.
- Wastewater Treatment: Suitable for inlet monitoring to ensure efficient process control.
Core Features & Benefits
Measuring Principle & Range
- Employs inductive (toroidal) conductivity measurement, ensuring no direct contact between sensor electrodes and media—crucial for preventing fouling and maintaining long-term accuracy.
- Offers an exceptionally broad measuring range: from 2 µS/cm up to 2000 mS/cm—spanning six orders of magnitude.
Robust Construction
- Built using chemically resistant materials: PFA (perfluoroalkoxy) or PEEK ( ketone)—both selected for durability under harsh chemical exposure.
- Max operating temperature:
- PEEK version: up to 125 °C (possibly up to 180 °C according to older technical sources)
- PFA version: up to 110 °C
- Max pressure resistance:
- PEEK: up to 21 bar
- PFA: up to 17 bar
Sensor Intelligence & Safety
- Equipped with Memosens digital technology, offering advantages like moisture and corrosion resistance, process integrity, and easy predictive maintenance via onboard data storage.
- Includes an integrated Pt1000 temperature sensor (coated) for accurate temperature compensation.
- Certified for use in hazardous areas, with approvals including ATEX, IECEx, NEPSI, FM, CSA, TIIS, and EAC.
- Rated IP68 / NEMA Type 6, indicating strong protection against dust and long-term water immersion.
Ease of Use & Maintenance
- Features dirt-repellent surfaces and a large sensor opening to minimize fouling and clean-up requirements.
- Supports long-distance wiring—up to 55 m (180 ft)—with minimal impact on measurement accuracy.
- Ability to log sensor-specific data enhances traceability and supports predictive maintenance.
Integration & Compatibility
- Designed to work seamlessly with Endress+Hauser transmitters like Liquiline CM44x/R or Liquiline M CM42.
- The analog version (CLS50) is used with devices such as Liquisys CLM223/253.
Summary Table of Specifications
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Specification
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Details
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Measuring Principle
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Inductive (toroidal)
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Conductivity Range
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2 µS/cm – 2000 mS/cm
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Temperature Resistance
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PEEK: ≤125 °C (some sources say up to 180 °C); PFA: ≤110 °C
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Pressure Rating
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PEEK: ≤21 bar; PFA: ≤17 bar
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Temperature Sensor
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Integrated Pt1000 (coated)
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Hazard Approvals
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ATEX, IECEx, NEPSI, FM, CSA, TIIS, EAC
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Ingress Protection
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IP68 / NEMA 6
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Key Benefits
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High durability, low fouling, long-distance wiring, predictive maintenance, digital data integrity
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Compatible Transmitters
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Liquiline CM44x/R, Liquiline M CM42 (digital); Liquisys CLM223/253 (analog)
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Why the Indumax CLS50D Stands Out
- Optimized for the harshest environments: Chemical resistance, high pressure/temperature tolerance, and no electrode contact make it resilient and reliable.
- Extremely versatile: Offers one of the broadest conductivity ranges in the industry.
- Advanced digital intelligence: Memosens technology elevates data integrity and facilitates smart maintenance strategies.
- Safety-certified: Ready for explosive or hazardous zones.
- Let’s you go the distance: Maintains accuracy even with long cable runs—critical for plant-scale installations.
