Technological Highlights

Simple and intuitive operation

  • Inexpensive and solid system for standard applications
  • Compact field device with integrated transmitter
  • Many digital and analogue outputs and inputs make the Uni-Probe universally conformable


State of the art technology

  • Communication via HART, Foundation Fieldbus or Profibus PA
  • Communication can be switched over from Bus to HART at any time
  • High operational safety, FMEDA with SFF 96%

Features for high demands

The level measuring system Uni-Probe LB 490 has interfaces for HART, Profibus PA and Foundation Fieldbus.
Even if the level measurement LB 490 is used in Profibus or Fieldbus systems, it is always possible to switch to HART communication if required. The separate 4-20mA current output can alternatively be used as a signal output (e.g. for a remote display).


Easy measurement on extremely thick walls

Large containers with extremely thick walls require very high activities. When using the SuperSENS, the source activities can be significantly reduced.
If you already have measurements with point detectors and you are faced with the decision to replace the now weak sources, applying a SuperSENS can avoid a replacement of the source, as this will automatically increase the lifetime of the sources.


Designed for unlimited measuring ranges

Do you have large measuring ranges? No problem! The Uni-Probe TowerSENS is available in lengths up to 8 m. This saves you the cost-intensive use of multiple detectors that are connected to a multi-detector system. Installation and commissioning is simplified, since no other devices must be linked via interfaces. Ultimately, the risk of failure is reduced because the TowerSENS only requires electronics for up to 8 m. If the measuring range exceeds 8 m, additional TowerSENS can be connected to each other.


Pages of Whitepaper radiometric measurement

Whitepaper "Radiometric Measurements"

Berthold has published the whitepaper “Radiometric Measurements – Accuracy, repeatability and errors”, wherein the radiometric measurements are explained and  how your process can be performed with highest accuracy and reproducibility and the error sources can be minimized. The paper explains the nature and causes of these errors, and identifies solutions where these errors can be suppressed through the application of „best practices“ and proper design.

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Publication Made to measure in Hydrocarbon Engineering

Article "Made to measure"

You want a reliable control of your fluid catalytic cracking (FCC) process, but are uncertain about the right measurement technology because of the extreme process conditions? Read the article “Made to measure” to learn why the use of radiometric measurement systems can help to optimize level control in FCC units and how Berthold systems can help you to control your process more reliably to ensure safe operation while increasing efficiency. One of our often used detectors in FCC processes is the LB 490.

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Sources & Shields

Sources & Shields

Sources and shields used in our radiometric systems are the safest and highest quality on the market. The shielding containers create an optimum shielding.


Continuous Level Measurement Product brochure

English | PDF | 4.9 MB

Radiometric measurement Whitepaper

English | PDF | 1.8 MB

Article made to measure Publication

English | PDF | 6.8 MB

Manual Level LB 490 (HART)

English | PDF | 18.4 MB