SIL 2 / SIL 3 option for safety critical processes
The SENSseries LB 480 from Berthold can be used as a radiometric level switch system in tanks, and chemical reactors. To maintain the measurement stability and to monitor the detector functionality, the unique and unrivaled Berthold "cosmic radiation gain control" is used. This allows the use as a SIL 2 high, or even low point level switch, without additional measures. Even the use in functional safety circuits with SIL 3 is possible, when using two LB 480. Furthermore the cosmic radiation gain control makes it possible to minimize the source activity for level switch systems. Berthold is the sole supplier of density and continuous level field devices, as well as level switches for SIL 2/3 functional safety circuits. Another unique feature is the patented 4 … 20 mA monitoring, that identifies current signal deviations in the loop. Hence a possible fault in the current output circuit of the LB 480, or at the repeater side, e.g. due to lightning or wrong connections, can be identified without delay. Naturally, the LB 480 comes with the Berthold renowned reliability for radiometric measurement systems.
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SENSseries LB 480 LS
Next generation of high-sensitive detectors with innovative safety features - SIL