Endress+Hauser Soliphant T FTM20 - Function and System Design; Measuring Principle; Measuring System

Soliphant T FTM20, FTM21
Endress+Hauser 3
Function and system design
Measuring principle A piezoelectric drive excites the vibrating rod of Soliphant T FTM20, FTM21 to its resonance frequency.
If medium covers the vibrating rod, the rod's vibrating amplitude changes (the vibration is damped).
Soliphant's electronics compare the actual amplitude with a target value and indicates whether the vibrating
rod is vibrating freely or whether it is covered by medium.
L00-FTM2xxxx-15-06-xx-xx-001
A = amplitude
Measuring system Soliphant T is a compact electronic switch.
Thus, the entire measuring system only consists of:
• Soliphant T FTM20 or FTM21 with FEM22 or FEM24 electronic insert
• a supply point and
• the connected control systems, switching units, signalling systems (e.g. lamps, horns, PCS, PLC, etc.)
L00-FTM2xxxx-14-06-xx-xx-001
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