Bürkert’s Type 8139 80 GHz radar level sensor for continuous level measurement
The Type 8139 is Bürkert’s first 80 GHz radar level sensor for the continuous level measurement of liquids. Now, with this Bürkert level sensor, operators can look forward to extremely accurate readings, even in otherwise challenging level sensor applications. PIF explores the features and benefits of Bürkert 8139 radar level sensors.
For many years, fluid control expert Bürkert has been offering various measuring principles and technologies to monitor the liquid level in storage tanks and vessels. In addition to float and tuning fork switches, they supply ultrasonic, guided radar and radar level sensors.
Now their radar level sensors have been taken to, well, another level, with the introduction of a new 80 GHz radar level sensor to their portfolio of level sensors types. "The new radar level sensor Type 8139 complements our sensor range and, thanks to 80 GHz technology, sets standards in the field of level measurement", said Volker Erbe, Product Manager Sensors at Bürkert.
How the Bürkert 8139 radar level sensor works
Type 8139 level sensors from Bürkert emit a continuous radar signal at 80 GHz. This signal reflects on the surface of the filling medium and the sensor receives the signal as an echo. Special algorithms in the sensor electronics then convert the frequency change between the transmitted and received signal into the filling level.
Until now, difficult process environments limited the use of radar technology in level measurement. Thanks to the new high-frequency technology and the particularly large dynamic range of 120 dB, Bürkert’s 80 GHz radar level sensor can now reliably measure in foam- and condensate-forming liquids, as well as in media with low reflective properties.
A radar level sensor with greater accuracy and fewer dead zones
With an 80 GHz radar level sensor, interfering reflections caused by installed equipment are less common compared to 26 GHz devices. For example, the sensor does not detect cooling coils or stirrers in tanks and vessels due to the smaller radar cone. Optimised hardware and software of the sensor ensures a particularly precise measurement. In contrast to 26 GHz radar level meters, which achieve an accuracy of ±2 mm, the Type 8139 achieves ±1 mm.
The antenna system of the device is also integrated into the process connection. As a result, it does not protrude that far into the vessel, which reduces blocking distance (dead zone) in the upper area. The 80 GHz technology allows measurement in very small tanks due to an improved signal focus. Furthermore, the Bürkert 8139 radar level sensor is available with three-quarter inch process connections.
Benefits of the Bürkert 8139 radar level sensor
The Bürkert 8139 80 GHz radar level sensor offers the following benefits:
- Measurements even under difficult process conditions.
- Improved measuring accuracy (± 1 mm).
- Ideal for small tanks and vessels.
For more information, please visit Bürkert.
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