TI328F/00/en

Technical Information

Liquiphant M FTL50(H), FTL51(H)

Vibration Limit Switch

Level limit switch for all liquids.

Suitable for use in hazardous areas, food and pharmaceuticals

Application

The Liquiphant M is a level limit switch for use in all

liquids

– for process temperatures of –50 °C to 150 °C

– for pressures up to 100 bar

– for viscosity up to 10000 mm

– for densities 0.5 g/cm

or 0.7 g/cm

other settings

available on request

– foam detection on request

The function is not affected by flow, turbulence, bubbles,

foam, vibration, bulk solids content or build-up.

The Liquiphant is thus the ideal substitute for float

switches.

FTL50:

Compact design, ideal for mounting in pipes and for

installation in areas difficult to access

FTL51:

With extension pipe up to 3 m

(6 m on request)

FTL50H, FTL51H:

With polished tuning fork and easy-to-clean process

connections and housings for food and pharmaceutical

applications.

High corrosion-resistant AlloyC4 (2.4610) 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/SIL3 in accordance with IEC 61508/

IEC 61511-1

• Large number of process connections to choose from:

universal usage

• Wide variety of electronics, e.g. NAMUR, relay,

thyristor, PFM signal output: the right connection for

every process control system

• PROFIBUS PA protocol:

for commissioning and maintenance

• No calibration: quick, low-cost start-up

• No mechanically moving parts: no maintenance,

no wear, long operating life

• Monitoring of fork for damage: guaranteed function

• FDA approved materials (PFA Edlon)

Endress+Hauser Liquiphant M FTL50H - Product Specifications and Operating Conditions; Environment and Medium Properties; Mechanical Construction and Design

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