Endress+Hauser FTL51B and FTL41 vibronic instruments

The Endress+Hauser Liquiphant FTL51B and FTL41 vibrating fork (vibronic) level instruments are designed to detect the point level of liquids in storage tanks, containers and pipes, while providing proof test, verification and IIoT functionality. The FTL52B features Industry 4.0 and IIoT capabilities, including access via wireless Bluetooth technology, automatic proof tests and verification, and commissioning via a mobile device. The FTL51B also features a high-visibility LED.

The FTL51B can be used in storage tanks, containers and pipes for point level detection of different types of liquids. Its vibronic sensor is not affected by changing media properties, flow, turbulence, gas bubbles, foam, vibration or build-up. The instrument works in temperatures of -50 to 150°C and pressures up to 1450 psi (100 bar). It can be used in SIL2 and SIL3 hazardous locations and has built-in automatic maintenance and verification functions.

The FTL41 is similar to the FTL51B, but works at lower pressures, up to 580 psi (40 bar), with a narrower temperature range of -40 to 150°C. Both perform proof tests, with the FTL51B meeting SIL and WHG (Water Resources Act) requirements. The proof test can be activated remotely at a control system or locally via a magnet or push-button test. The products can diagnose the sensor for corrosion and build-up, with verification activated either manually or automatically with Endress+Hauser’s Heartbeat Technology. Access via Bluetooth and a mobile device allows users to identify each device, commission it, check the status, start a proof test and download verification documentation.