Endress+Hauser Liquiphant M with FEL56, Руководство по функциональной безопасности

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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
[Ex ia]
CH1
CH1
FTL325N
T
[Ex ia]
CH1 CH2
CH3
CH1 CH2 CH3
T
FTL325N
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