Technical Characteristics and Robust Design
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Mechanical Reliability: The FTE20 features a robust polymer housing designed to withstand the mechanical stresses of the bulk solids industry. Its construction ensures a long service life even in abrasive or demanding environments.
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Automatic Rotation Monitoring: For increased process safety, the device includes overfill protection with automatic rotation monitoring. This ensures that the system can distinguish between a “full” state and a potential mechanical failure.
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Visual Status Check: An integrated optical rotation control allows for fast and easy checking of the device status during installation or troubleshooting without opening the housing.
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Adaptability: The sensor offers tool-free adjustment to the weight of different bulk solids. By simply adjusting an internal spring, the sensitivity can be matched to light powders or heavy ores.
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Flexible Installation: The housing can be rotated up to 360° after it is screwed into the process connection, allowing for perfect alignment of cable entries and indicators regardless of the mounting position.
Technical Specification Matrix
| Feature | Technical Details |
| Measuring Principle | Rotary paddle (Mechanical) |
| Application | Bulk solids (density ≥ 100 g/l) |
| Housing Material | Robust Polymer (PBT) |
| Process Temperature | -20 to +80 °C (-4 to +176 °F) |
| Process Pressure | 0.5 to 2.5 bar (7.25 to 36 psi) |
| Safety Approvals | ATEX, IECEx, FM, UK CA, INMETRO (Dust Ex) |
| Output | Switching relay (Change-over contact) |
Primary Applications
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Grain Silos and Feed Mills: Monitoring fill levels in agricultural storage to prevent overfills or ensure a constant supply to processing lines.
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Construction Materials: Level detection in cement, sand, or gravel bins at batching plants.
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Chemical and Plastic Pellets: Reliable switching in silos containing plastic granules, resins, or powdered chemical additives.
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Dust Explosive Atmospheres: Certified for use in hazardous areas where combustible dust is present, such as flour mills or woodworking facilities.
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Conveyor Transfer Points: Detecting blockages in chutes or transfer points to prevent equipment damage and material spillage.
