The Liquiphant FTL51B is a digital point level switch with an extension tube, designed to deliver simple and safe limit detection for all liquids in the process industry—including SIL2 and SIL3 applications (3rd party approved, developed per IEC 61508).

Boasting a proven vibronic measuring principle, it operates reliably unaffected by changing media properties, flow, turbulences, gas bubbles, foam, vibrations, or build-up. Its key specifications include a process temperature range of -50 °C to +150 °C (-58 °F to +302 °F), process pressure spanning from vacuum (or -1 bar/-14.5 psi) to 100 bar (1450 psi), a minimum medium density of 0.5 g/cm³ (0.4 g/cm³ optional), sensor materials of 316L or Alloy, and support for diverse process connections (threads, flanges, hygienic Tri-Clamp). It also holds international explosion protection certificates, overfill protection (WHG) compliance, and marine approvals.

Among its standout benefits are streamlined periodic proof testing—facilitated by guided wizards via the SmartBlue-App, an external test button, or magnetic pin, plus digital communication for easy safety loop testing—and Heartbeat Technology that enables safe, continuous diagnostics and simple verification without process interruption. Additionally, digital communication supports centralized asset management with easy online access to all device information, while the device serves as a second line of defense to protect the environment.

Point level switch for all liquid media.

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