Rigorous radar level sensor with Ethernet-APL

May 3, 2023

Micropilot FMR63B 80 GHz radar level sensor is built for rigorous hygiene requirements, turbulent surfaces, and foam formation and buildup without contacting the medium—and uses Ethernet-APL networking for use in hazardous areas. It also employs E+H’s patented Heartbeat Verification radar accuracy index (RAI) technology that lets users assess the instrument accuracy without process interruption, so results are traceable and ISO90001 compliant. This latest member of E+H’s 80GHz radar level portfolio meets all applicable industry standards, such as EHEDG, 3-A and ASME BPE.

In addition to liquids, Micropilot FMR63B provides reliable level measurement for hygienic solids applications, such as milk powder and medications. Compatibility with external cleaning agents—like H2O2—means it can be easily installed in cleanrooms and similar environments, such as ultrapure water tanks for injection solutions, where strict hygiene must be maintained. Micropilot also eases level measurement with a common user interface across all devices in the family, making for safe and intuitive installation, commissioning and operation. Users are guided through configuration with step-by-step wizards, saving valuable time and helping prevent systematic errors.

In addition, all analyses, controls, maintenance, and functional checks can be performed remotely and conveniently via smartphone or tablet using Bluetooth communication and the SmartBlue app from E+H. Also, Ethernet-APL enables monitoring and operation of devices from the integrated web server onboard FMR63B. These instruments use other digital communication methods, too, including Profibus PA and HART, increasing flexibility and compatibility with many control systems. Important settings are logged by a checksum, resulting in quick detection of accidental changes. In the event of an FMR63B electronics failure, measuring point parameters can be transferred to the replacement electronics using HistoROM mobile memory, enabling users to configure a new device without specialized knowledge.

Finally, the instrument’s wireless remote access meets rigorous safety requirements. For example, E+H developed a security layer for Bluetooth to protect passwords. The core component, CPace, prevents attacks during Bluetooth pairing, a protection classified by the Munich-based Fraunhofer Institute for Applied and Integrated Security as "high." When a fault occurs, Micropilot improves process safety with a status display that changes color from green to red, drawing quick attention to hazards and error message.