Endress+Hauser CLS50-AAC2 Reliable Capacitance Level Switch for Bulk Solids

The Endress+Hauser CLS50-AAC2 is a robust and versatile capacitance point level switch designed for reliable detection of powders, granules, and other bulk solids in silos, bins, and hoppers. Engineered for demanding industrial environments, it ensures process safety and efficiency by preventing overfilling or run-dry conditions. This article explores its key parameters, advantages, and primary applications.

Parameter Introduction (Key Specifications):

The CLS50-AAC2 is defined by its robust construction and adaptable electronics:

Measuring Principle: Capacitance measurement, where the presence of material changes the probe's capacitance.

Sensor Type: Rigid or flexible rod probes, with various lengths and materials (e.g., stainless steel) to suit different vessels and materials.

Process Connection: Standard G1½" or 1½" NPT thread, ensuring easy installation.

Process Temperature Range: Up to 200°C (392°F), suitable for high-temperature processes.

Process Pressure: Up to 25 bar (363 psi), capable of withstanding pressure in sealed systems.

Sensitivity Adjustment: Easy on-site calibration via a potentiometer or using the Teach-In function for automatic adaptation to the material.

Electrical Output: SPDT relay output (changeover contact) for direct control of pumps, conveyors, or alarms.

Housing Protection: IP66/IP67 rated enclosure, providing excellent protection against dust and water ingress.

Advantages:

Choosing the CLS50-AAC2 offers significant operational benefits:

High Reliability: Immune to material buildup, ensuring stable switching even with adhesive or coating materials.

Simple Installation & Operation: The intuitive Teach-In function allows for quick, tool-free commissioning without needing to empty the vessel.

Extreme Durability: Built with high-quality materials, it withstands abrasive materials, mechanical stress, and harsh environmental conditions.

Low Maintenance: No moving parts in contact with the process media minimizes wear and eliminates the need for frequent recalibration.

Versatility: Suitable for a vast range of bulk solids, from fine powders to large granules, and in industries from food to mining.

Keywords:

Endress+Hauser CLS50-AAC2, capacitance level switch, point level detection, bulk solids level sensor, silo level switch, bin level indicator, powder level detection, granular material sensor, high-temperature level switch, reliable level control, Teach-In function, Endress level instrumentation.

Applications:

The CLS50-AAC2 is a preferred solution across numerous industries for inventory control and process interlocking:

Food & Beverage: Monitoring levels of flour, sugar, grains, and powdered ingredients in storage silos.

Chemicals & Plastics: Detecting pellets, powders, and granules in intermediate bulk containers (IBCs) and process vessels.

Pharmaceuticals: Level control of active pharmaceutical ingredients (APIs) and excipients in contained systems.

Building Materials: Reliable detection of cement, gypsum, sand, and aggregates in hoppers and weighing systems.

Power & Energy: Monitoring fly ash, limestone powder, or biomass in storage bunkers at power plants.

In summary, the Endress+Hauser CLS50-AAC2 level switch combines proven capacitance technology with user-friendly features to deliver a dependable and low-maintenance solution for point level detection. Its durability, ease of use, and broad applicability make it an essential component for optimizing material handling, ensuring process safety, and preventing costly downtime in bulk solids processing.