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SD00188F/00/EN/13.13
71238762
Functional safety manual
Liquiphant M/S with FEL56
and Nivotester FTL325N
Level Limit Measuring System
Application
Minimum detection (also dry running protection) of all
types of liquids in tanks to satisfy particular safety systems
requirements as per IEC 61508/IEC 61511-1.
The measuring device fulfils the requirements concerning
• Safety functions up to SIL 2
• Explosion protection by intrinsic safety or flameproof
enclosure
• EMC to EN 61326 and NAMUR Recommendation
NE 21.
Your benefits
• For minimum detection up to SIL 2
– Independently assessed (Functional Assessment) by
exida.com as per IEC 61508/IEC 61511-1
• Monitoring for corrosion on the tuning fork of the
sensor
• No calibration
• Fault message for circuit break and short-circuit
• Functional test of subsequent devices at the push
of a button
• Protected against outside vibration
• Easy commissioning
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