Liquiphant FTL51 is a point level switch with extension tube 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.
- Use in safety systems requiring functional safety to SIL2/SIL3 in accordance with IEC 61508/IEC 61511-1
- International explosion protection certificates and overfill prevention 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 function
- Second line of defense to protect the environmental
- Variety of standardized process connections for all applications
- Stainless steel (316L) and high-corrosion resistant sensor material (Alloy)
Point level switch with extension tube for all liquids.
- Process connections: Threads, flanges and hygienic process connection (Tri-Clamp)
- Temperature: -50 to +150°C (-58 to +302°F)
- Pressure: -1 to +100bar (-14.5 to +1,450psi)
- Sensor material: 316L, Alloy
- International explosion protection certificates, overfill prevention WHG, SIL
Characteristic / Application
Modular housing concept
wide range of process connections
Analogue and bus interfaces
Extensive certificate range (e.g. Ex,WHG)
pipe extension up to 3m (6m option)Specialities
Foamdetection
Detect a densitychange
second line of defenseSupply / Communication
PROFIBUS PA
19…253V AC
10…55V DC-PNP
19…253V AC or 10…55V DC
8/16mA, 11…36V DC
NAMUR
PFMAmbient temperature
-50 °C…+70 °C
(-58 °F…+158 °F)Process temperature
-50 °C…+150 °C
(-58 °F…+302 °F)Process pressure absolute / max. overpressure limit
Vacuum…100 bar
Min. density of medium
0.5g/cm³(0.4g/cm³ optional)
Main wetted parts
316L / Alloy
Process connection
Thread:
G3/4A, G1A, R3/4″, R1, NPT3/4, NPT1
Flange:
DN25…DN100,
ASME 1″…4″,
JIS 25A…100A
Process connection hygienic
Tri-Clamp ISO2852
Sensor length
Length 130mm (5.12″) (Liquiphant II)
148mm…6000mm (5.83″…236″)Communication
PROFIBUS PA
19…253V AC
10…55V DC-PNP
19…253V AC bzw 10…55V DC
8/16mA, 11…36V DC
NAMUR
PFMCertificates / Approvals
ATEX, FM, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI
Safety approvals
Overfill prevention WHG
SIL2/ SIL3
Design approvals
EN 10204-3.1
NACE MR0175, MR0103
ASME B31.3
AD2000
Marine approval
GL/ ABS/ DNV
Options
Heavy duty stainless steel housing mainly for the oil and gas industry
Components
FTL325P/FTL375P Interface PFM
FTL325N/FTL375N Interface NAMURSuccessor
Liquiphant FTL51B
