Liquiphant S FTL70, FTL71
4
Application
Point level detection
Maximum or minimum detection in tanks or pipes containing all kinds of liquids from cold to very hot. The
devices are also suitable for use in hazardous areas and for applications with high pressures.
L00-FTL7xxxx-11-05-xx-xx-001
Function and system design
Measuring principle
The sensor's fork vibrates at its intrinsic frequency.
This frequency is reduced when covered with liquid. This change in frequency causes the point level switch to
switch.
Modularity
Point level switch
Liquiphant S FTL7x with electronic inserts
FEL51, FEL52, FEL54
L00-FTL7xxxx-15-05-xx-xx-000
Point level switch
Liquiphant S FTL7x with electronic inserts
FEL55, FEL56, FEL57, FEL58, FEL50A
for connecting to a separate switching unit,
an isolating amplifier or for connecting to
a PROFIBUS PA segment coupler
L00-FTL7xxxx-15-05-xx-en-000
FEL51/52/54
…
FEL55/56/57/58/50A
Ex i
…
EX
EX
Switching unit
PLC
Isolating
amplifier
Segment
coupler