Level Transmitters Measure Level or Volume of Liquids
Endress+Hauser introduces Micropilot FMR5X series of free space radar level transmitters. The FMR5X has software with multi-echo tracking algorithms and functions to suppress interference echoes, providing accuracy up to ±0.078 inches for level measurement of liquids and bulk solids products.
The FMR5X can be used to measure level or volume with a built-in 32-point strapping table. The liquids can be measured in metal or plastic tanks, stilling wells, bypass chambers or other vessels up to 131 feet high with standard units or 197 feet with enhanced dynamics option. The instrument can also be used to detect minimum or maximum levels to prevent overfilling or empty tanks in addition to continuous monitoring of the level.
Like other Endress+Hauser “time of flight” instruments, the FMR5X measures the distance from the process connection to the product surface. However, the FMR5X is equipped with multi-echo tracking algorithms that ensure that interference echoes are not interpreted as level echoes. Multi-echo tracking uses self-learning algorithms that build short term and long term history to check the echoes for plausibility and increased reliablity.
A linearization table of up to 32 points can be entered either manually or semi-automatically. This function provides a linear 4-20mA output signal for spheres, horizontal cylindrical tanks and vessels with a conical outlet. Linearization can also be used to convert the level measurement into volume or mass engineering units.