Endress+Hauser Liquiphant S FTL70-**********L Series User Manual & Technical Information

Technical Information
Liquiphant S FTL70, FTL71
Vibronic
High-temperature point level switch for all kinds of liquids
Application
The Liquiphant S is a point level switch which can be
used in all liquids
– for process temperatures between –60 °C and 280 °C
(300 C for max. 50 h cumulative;
without thermal shock restriction)
– for pressures up to 100 bar
– for viscosity up to 10,000 mm
– for density of ≥ 0.5 g/cm 3
other settings on request
– foam detection on request
TI354F/00/en
71114957
2
/s
or ≥ 0.7 g/cm 3
,
The function is not affected by flow, turbulence, bubbles,
foam, vibration, bulk solids content or buildup. The
Liquiphant is thus the ideal substitute for float switches.
FTL70:
Compact design, also for pipes
FTL71:
With extension pipe up to 3 m (6 m on request)
High corrosion-resistant AlloyC4 (2.4610), AlloyC22
(2.4602) is available for the fork and process connections
for applications in very aggressive liquids.
EEx ia, EEx de and EEx d protection enable it to be used
in hazardous areas.
Your benefits
• Use in safety systems requiring functional safety to
SIL2 in accordance with IEC 61508/IEC 61511-1
• With high-temperature resistant components: for
process temperatures to 280 °C (300 °C for max. 50
h cumulative)
• With welded gas-tight feed-through: maximum safety
in the event of damaged sensor
• Process connections from ¾" and small tuning fork
dimensions: also for areas difficult to access
• Large number of process connections to choose from:
universal usage
• Wide variety of electronics, e.g. NAMUR, relay,
DC–PMP, thyristor, PFM signal output:
the right connection for every process control system
• PROFIBUS PA interface: for optimum startup and
maintenance
• No adjustment: quick, low-cost startup
• No mechanically moving parts: no maintenance, no
wear, long operating life
• Monitoring of fork for damage: guaranteed function