
Specs at a glance
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Process temperature
-50 °C...+150 °C
(-58 °F...+302 °F)
up to 230 °C / 450°F on request -
Process pressure / max. overpressure limit
Vacuum...40 bar
(Vacuum...580 psi) -
Min. density of medium
0.5g/cm³ (0.4g/cm³ optional)
Field of application
Liquiphant FTL51C is a point level switch with extension tube and highly corrosion resistant coating. For use in hazardous areas with all international certificates. Useable in all industries. FTL51 offers functional safety SIL2/SIL3. With the second line of defense highest degree of safety and availability of the device can be guaranteed. Reliable measurement values, not affected by: changing media properties, flow, turbulences, gas bubbles, foam, vibrations or build-up.
Point level switch for all liquids with highly corrosion-resistant coating.
Process connections: Flanges and hygienic process connection (FDA conform with PFA)
Temperature: -50 to +150°C (-58 to +302°F)
Pressure: -1 to +40bar (-14.5 to +580psi)
Sensor material: ECTFE, PFA (Edlon, Rubyred, conductive), Enamel
International explosion protection certificates, overfill protection WHG, SIL, hygienic certificates, marine approvals
Benefits
Use in safety systems requiring functional safety to SIL2/SIL3 in accordance with
IEC 61508/IEC 61511-1Different plastic coating (PFA) and enamel coating for applications with aggressive medias
International explosion protection certificates and overfill protection certificate (WHG)
No calibration required, easy to start up
No mechanically moving parts: no maintenance, no wear, long operating life.
Monitoring of fork for damage: guaranteed functionSecond line of defense to protect the environment
Variety of standardized process connections for all applications
Videos
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Vibronic measuring principle
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Liquiphant with permanent function check is the safe choice for point level detection in liquids
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
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Fundamental selection Meet your basic measurement needs |
Technical excellence
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Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
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Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
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Simplicity
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Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |