LEDAER UMF Series
RF Admittance Level Transmitter: Accurate, Drift-Free Measurement for Challenging Slurries & Solids
📌 Overview
The UMF Series is the ultimate solution for measuring the level of challenging liquids, slurries, and solid granules. Unlike traditional capacitance sensors, RF Admittance technology features a unique “Active Shield” design that allows the sensor to ignore the effects of material buildup (coating) on the probe. Whether dealing with sticky coal ash, viscous polymers, or aggressive slurries, the UMF series ensures accurate, drift-free measurement.
✨ Key Features & Advantages
Anti-Coating Tech
Effectively eliminates measurement errors caused by material clinging or “caking” onto the probe.
Universal Media
Equally effective for Liquid Level (oil, acid) and Solid Material Level (powder, grains, dust).
Extreme Resilience
Operates in high-pressure (up to 10 MPa) and extreme heat (up to +800°C) environments.
Solid-State Design
Zero mechanical components ensure extreme durability in high-vibration or high-wear settings.
📊 Technical Specifications
| Parameter | Value |
|---|---|
| Measuring Range | Up to 30 meters |
| Accuracy | ±0.5% to ±1.0% FS |
| Operating Conditions | Up to 10 MPa / -40°C to +800°C |
| Probe Types | Rigid Rod, Flexible Cable, or Flat Plate sensors |
| Wetted Materials | SS304, SS316, with optional PTFE/Ceramic coatings |
| Explosion-Proof | Exia II CT4-CT6 / Exd II CT4-CT6 |
🏭 Ideal Applications
Fly ash silos, coal bunkers, and bottom ash pits.
Viscous resins, paints, adhesives, and heavy oils.
Ore slurries, sand storage, and cement silos.
Thickened sludge tanks and primary/secondary clarifiers.
Why Choose LEDAER UMF?
Our advanced circuitry ensures the sensor only sees the true level, not the material stuck to it.
From rigid rods to flat plates, we match the sensor to your vessel’s unique internal structure.
With no moving parts and robust self-diagnostics, UMF provides years of worry-free operation.
Proven reliability across the global power, chemical, and mining sectors.





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