Liquicap FMI51 | High-Performance Capacitance Level Probe for Demanding Liquids｜Endress+Hauser supplier

Technical Characteristics and Advanced Measurement

• Capacitance Principle: The probe and the vessel wall (or a ground tube) form a capacitor. As the level rises, the capacitance changes. The FMI51 converts this change into a proportional 4 to 20 mA signal.

• Independence from Medium Changes: In conductive liquids ($> 100 \mu S/cm$), the probe is factory-calibrated so that it provides accurate readings regardless of the dielectric constant. This means you can switch from water to a different conductive chemical without recalibrating the device.

• Build-up Immunity: The high-quality insulation and sophisticated electronics ensure that even if a sticky or viscous medium coats the rod, the measurement remains accurate, reflecting the actual level rather than the coating.

• Extreme Environment Tolerance: Engineered for durability, the FMI51 operates reliably from cryogenic temperatures (-80 °C) up to high-heat industrial processes (+200 °C), and can withstand pressures up to 100 bar.

• Safety and Reliability: The device is certified for use in safety-related systems up to SIL2. It also features two-stage overvoltage protection to safeguard against power surges or lightning strikes.

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Ứng dụng chính

• Aggressive Chemical Processing: Level monitoring in acids, alkalis, and solvents where corrosion resistance is mandatory.

• High-Pressure Vessels: Ideal for reactors and steam applications where structural integrity is a priority.

• Inventory Management: When paired with Fieldgate technology, it provides real-time data for remote monitoring and automated supply chain replenishment.

• Food and Life Sciences: Thanks to FDA-listed materials and hygienic certificates, it is suited for monitoring ingredients and final products in sanitary tanks.

• Marine and Offshore: Certified for use on ships and offshore platforms, providing reliable level data for fuel, oil, or ballast tanks.