FMR50 radar level gauge, advanced instrument

FMR50 is a radar level gauge used for continuous non-contact level measurement of liquids, slurries, and mud. It is a very powerful product with a maximum measurement range of 40m, and the enhanced version can reach 50m. The process temperature range is between -40....+130 ℃ and the process pressure is between -1....+3 bar, making it suitable for most places. The measurement accuracy error is between 2mm. Has passed multiple certifications such as International Explosion proof, WHG, etc.

• Completes measurements even when the medium and process conditions change.
• Equipped with HistoROM intelligent data management, it can easily complete debugging, maintenance, and diagnosis.
• Multi-loop signal tracking technology to ensure high reliability.
• Equipped with Bluetooth wireless technology.
• Heartbeat detection technology.

Micropilot is a "top-down" measurement system based on the Time of Flight (ToF) principle, which measures the distance between the reference point (process connection) and the surface of the medium. The antenna emits radar pulse signals, which are transmitted on the surface of the medium, and the reflected signals are received by the instrument.

R is the measurement reference point (lower end face of flange or threaded connection), E is the empty mark (zero point), F is the full mark (full range), and D is the measurement distance L liquid level (L=E-D). The antenna receives radar pulse reflection signals and transmits the reflected signals to the instrument. The microprocessor in the instrument performs signal analysis to identify the true reflected echo of the radar pulse signal on the material surface. D is proportional to the running time, D=c * t/2, c is the speed of light, L=E-D.

The instrument is equipped with interference echo suppression function, which can be activated by the user themselves. The interference echo suppression function and the multi-channel echo signal tracking algorithm together determine that interference echoes will not be misidentified as true level echoes. When debugging the Micropilot instrument, the core is to input the empty distance (zero point), full distance (full range), and corresponding application parameters, and the instrument will automatically adapt to the actual working conditions on site.

Different output types of instruments have default factory settings: the zero point of current output type corresponds to 4mA, and the full range corresponds to 20mA; the zero point of digital output type and display unit defaults to 0%, and the full range defaults to 100%, which can meet basic measurement needs without additional settings.

The measurement variable of this instrument is the distance from the reference point to the surface of the medium, and linearization can convert the measured level into other variables. The effective measurement range depends on the antenna size, medium reflectivity, installation location, and final interference reflection. The K-band with a working frequency of 26GHz.

The output signals include:

• HART and Bluetooth ® Wireless technology
• PROFIBUS PA
• FOUNDATION Fieldbus
• Switching output

There are two types of wiring methods: two-wire and four-wire. There are also two voltage options: 24Vdc and 240Vac.

The working range of the measuring equipment is between -40....+80 ℃, and the working range of the on-site display unit is between -20....+70 ℃. For higher temperature requirements, a separate display unit can be selected, which is more resistant to low temperatures. Basically applicable to the vast majority of places.

The protection level can reach IP68 and NEMA6P. The seismic resistance also meets multiple standards. The above is a basic introduction to this instrument.