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RF Admittance

AMETEK Drexelbrook’s RF admittance technology provides highly reliable level measurement in even the most challenging industrial environments. Used in both point level switches and continuous level transmitters, RF admittance sensing is trusted worldwide for its immunity to coating, build-up, turbulence, and variable media conductivity. The result is accurate and maintenance-free level control in liquids, slurries, solids and interface applications.

As the originators of RF admittance level instrumentation, AMETEK Drexelbrook have continuously evolved the technology to meet increasingly demanding process requirements. From high-integrity overfill protection to real-time continuous level output with SIL-rated diagnostics, these instruments are engineered to keep your process running safely and efficiently.

Have a particular application or project in mind? We’d welcome a call on +44 (0) 1189 169 420 or email: info@247able.com

Point Level Switches

Drexelbrook’s point level switches use RF admittance for on/off control in vessels, pipes and chutes. With no moving parts, they are ideal for abrasive, viscous or coating-prone media. The patented Cote‑Shield™ circuitry actively ignores build-up, ensuring reliable switching without false trips or manual cleaning.

The range includes line-powered, loop-powered and SIL-rated switches such as the IntelliPoint, ThePoint, Z-Tron IV, and MultiPoint II, as well as retractable and application-specific models like the Floating Roof Spill Prevention Switch and Plugged Chute Detector.

Continuous Level Transmitters

For applications requiring a real-time level output, Drexelbrook’s RF admittance transmitters offer continuous 4–20 mA signals with built-in diagnostics, temperature compensation, and long-term stability. The Universal V Level System is ideal for tank gauging, interface detection and pump control in critical systems, with support for HART® communications and SIL2/SIL3 safety environments.

Whether you need a simple alarm switch or a full-featured transmitter for complex process control, AMETEK Drexelbrook’s RF admittance solutions provide field-proven performance with expert local support from ABLE Instruments.

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