Technical Characteristics and Design
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Dual Frequency Options: The FMR43 utilizes proven 80 GHz technology for standard hygienic applications. For exceptionally small tanks where traditional sensors might struggle with “near-zone” interference, a 180 GHz frequency option is available. This higher frequency allows for a significantly smaller antenna and an ultra-narrow beam, ensuring reliable measurement in vessels with complex geometries.
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Certified Hygienic Design: Every aspect of the FMR43 is designed to meet strict sanitary standards. It features certified materials and a gap-free design to prevent bacterial growth, ensuring documented compliance for use in pharmaceutical and food production.
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Configuration Integrity (CRC): To enhance process safety, the device employs a checksum algorithm (CRC). This ensures that safety-relevant parameters remain unchanged and provides an immediate alert if the configuration has been tampered with or corrupted.
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Heartbeat Technology: This suite allows for on-demand, traceable verification of the radar’s accuracy and overall health without interrupting the process. It generates a documented report that can be used for quality audits (ISO 9001), significantly increasing plant productivity by reducing manual inspection requirements.
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Ease of Setup: The FMR43 features intuitive, menu-guided wizards that lead the user through the commissioning process. This “outstanding ease of use” reduces the risk of setup errors and allows for rapid deployment across different tank types.
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Compact Versatility: Its small sensor design and small process connections allow for installation in the tightest of spaces, yet the device remains capable of measuring levels in larger tanks and silos up to 15 meters.
Technical Specification Matrix
| Feature | Technical Details |
| Measuring Principle | Free-space Radar (W-band / G-band) |
| Frequency | 80 GHz (standard) / 180 GHz (option) |
| Measuring Range | Up to 15 m (49 ft) |
| Accuracy | ±1 mm (0.04″) |
| Process Temperature | -40 to +200 °C (-40 to +392 °F) |
| Process Pressure | Vacuum to 16 bar (232 psi) |
| Output Signal | 4-20 mA HART, Bluetooth configuration |
| Hygienic Compliance | 3-A, EHEDG, FDA, USP Class VI |
Standard Applications
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Viscous Mixing: Reliable measurement in tanks containing thick or sticky media where contact-based sensors would suffer from buildup.
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Small Process Vessels: Using the 180 GHz option to monitor levels in narrow pharmaceutical reactors or lab-scale containers.
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Filling Machines: Continuous level tracking in balance tanks and buffer vessels for filling lines.
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Low Conductivity Fluids: Accurate measurement of oils, fats, or demineralized water that typically provide weak reflections for lower-frequency radars.
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CIP/SIP Processes: Designed to withstand the high temperatures and aggressive chemicals used in Clean-in-Place and Sterilize-in-Place cycles.
