
Specs at a glance
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Process temperature
-50 °C...+150 °C
(-58 °F...+302 °F) -
Process pressure / max. overpressure limit
Vacuum...64 bar
(Vacuum...928 psi) -
Min. density of medium
0.5g/cm³(0.4g/cm³ option)
Field of application
Liquiphant FTL50 is a point level switch for use in hazardous areas with all international certificates. Useable in all industries. FTL50 offers functional safety SIL2/SIL3. With the second line of defense the 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.
Process connections: Threads, flanges and hygienic process connection (Tri-Clamp)
Temperature: -50 to +150°C (-58 to +302°F)
Pressure: -1 to +64bar (-14.5 to +928psi)
Sensor material: 316L, Alloy
International explosion protection certificates, overfill prevention WHG, SIL, marine approvals
Benefits
Use in safety systems requiring functional safety to SIL2/SIL3 in accordance with
IEC 61508/IEC 61511-1International 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 functionSecond line of defense to protect the environment
Variety of standardized process connections for all applications
Stainless steel (316L) and high-corrosion resistant sensor material (Alloy)
Videos
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 |
Predecessor
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Technical Information (TI)
Liquiphant M FTL50, FTL51, FTL50H, FTL51H Technical Information
English version - 01/2020
Point level switch for all kinds of liquids
EN 10/01/202009/10/201730/11/201607/05/201504/04/2012Language:
English
Version:
10/01/2020
File size:
2.7 MB
File name:
TI00328FEN_1820.pdf
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Explosion Protection
Product family: Cerabar M, Cerabar S, Deltabar M, Deltabar S, Deltapilot M, DELTAPILOT S, Gammapilot, GAMMAPILOTM, Levelflex, Liquicap M, LIQUIPHANT, LIQUIPHANT FAILSAFE, Liquiphant M, Liquiphant S, Micropilot, SOLICAP M, STRAHLENSCHUTZBEHÄLTER, Strahler
German version - 10/2020
Product root: FMB50-, FMB51-, FMB52-, FMB53-, FMB70-, FMD77-, FMD78-, FMG50-, FMG60-, FMI51-, FMI52-, FMP50-, FMP51-, FMP52-, FMP53-, FMP54-, FMP55-, FMP56-, FMP57-, FMR50-, FMR51-, FMR52-, FMR53-, FMR54-, FMR56-, FMR57-, FMR60-, FMR62-, FMR67-, FQG60-, FQG62-, FSG60-, FSG61-, FTI51-, FTI52-, FTI55-, FTI56-, FTL41-, FTL50-, FTL50H-, FTL51-, FTL51B-, FTL51C-, FTL51H-, FTL70-, FTL71-, FTL80-, FTL81-, FTL85-, PMC51-, PMC71-, PMD55-, PMD75-, PMP51-, PMP55-, PMP71-, PMP75- Region: Europe Approval agency: BV Protection: Ex i
Language:
German
Version:
20/10/2020
File size:
617.8 KB
File name:
EPS_15_ATEX_1_1011_X_R1.pdf
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Technical Information (TI)
Liquiphant M FTL50, FTL51, FTL50H, FTL51H Technical Information
Point level switch for all kinds of liquids
EN 10/01/202009/10/201730/11/201607/05/201504/04/2012Language:
English
Version:
10/01/2020
File size:
2.7 MB
File name:
TI00328FEN_1820.pdf
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Technical Information (TI)
Liquiphant M FTL51C Technical Information
Point level switch for all kinds of liquids with high corrosion-resistant coating
EN 31/08/201813/02/201719/05/201029/11/2007Language:
English
Version:
31/08/2018
File size:
2 MB
File name:
TI00347FEN_1418.pdf
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Technical Information (TI)
Weld-in adapter, process adapter and flanges
Level and pressure measurement
EN 28/10/202119/06/202008/11/201917/08/201730/06/2016Language:
English
Version:
28/10/2021
File size:
2.9 MB
File name:
TI00426FEN_2321.pdf
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Technical Information (TI)
Technical Information Liquiphant M Density and Density Computer FML621
Density computer for liquids Also for use in hazardous areas
EN 08/10/201212/02/200929/11/2007Language:
English
Version:
08/10/2012
File size:
800.4 KB
File name:
TI00420FEN_1312.pdf
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Operating Instruction (BA)
Liquiphant M/S FTL50, FTL51, FTL50H, FTL51H, FTL51C, FTL70, FTL71 Electronic insert FEL50A PA
Vibration Limit Switch Level limit switch for all liquids. Suitable for use in hazardous areas, food and pharmaceuticals
EN 10/08/2004Language:
English
Version:
10/08/2004
File size:
836 KB
File name:
BA141FEN.pdf
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Short Instruction (KA)
Bedienungsanleitung/ Operating Instuction Liquiphant.
Sliding Sleeve
EN 01/05/200801/11/1998Language:
English
Version:
01/05/2008
File size:
314.8 KB
File name:
KA100fa6_0308.pdf
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Short Instruction (KA)
FTL5x - sealing set
FTL5x - sealing set
EN 03/05/2021Language:
English
Version:
03/05/2021
File size:
63.3 KB
File name:
KA00609F_A2.pdf
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Short Instruction (KA)
Liquiphant M FTL50-########7#, FTL51-########7#, Operating Instructions
Point level switch for all liquids. Suitable for use in hazardous areas, food and pharmaceuticals With Aluminium Housing
EN 20/01/201729/06/201631/07/201018/04/200606/07/2004Language:
English
Version:
20/01/2017
File size:
1.8 MB
File name:
KA00163FA6_1417.pdf
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Short Instruction (KA)
Liquiphant M Density FTL50, FTL51 Operating Instructions
Liquiphant M for density and concentration calculation
EN 29/06/201615/11/2007Language:
English
Version:
29/06/2016
File size:
999.4 KB
File name:
KA00284FA6_1316.pdf
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Short Instruction (KA)
Exchange of sensor on Liquiphant M/S
Exchange of sensor on Liquiphant M/S
EN 24/04/2012Language:
English
Version:
24/04/2012
File size:
398.2 KB
File name:
KA00529FA2_0908.pdf
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Short Instruction (KA)
FTL5x - Exchange of housing F13
Liquiphant FTL5x - Exchange of housing F13
EN 15/04/2021Language:
English
Version:
15/04/2021
File size:
232.8 KB
File name:
KA00531F00_A2.pdf
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Short Instruction (KA)
Liquiphant M FTL50, FTL51 Operating Instructions
Point level switch for all kinds of liquids
EN 20/01/201729/06/201618/04/200601/04/2006Language:
English
Version:
20/01/2017
File size:
982.5 KB
File name:
KA00143FA6_1417.pdf
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Short Instruction (KA)
FTL5x - exchange of Polyester housing F16
Liquiphant FTL5x exchange of Polyester housing F16
EN 15/04/2021Language:
English
Version:
15/04/2021
File size:
344.2 KB
File name:
KA00533F00_A2.pdf
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Short Instruction (KA)
FTL5x - exchange Alu housing F17
Liquiphant M FTL5x - exchange Alu housing F17
EN 15/04/2021Language:
English
Version:
15/04/2021
File size:
254.1 KB
File name:
KA00534F00_A2.pdf
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Short Instruction (KA)
Bedienungsanleitung/ Operating Instuctions Liquiphant M/S + FEL57
Selbsttest Self test
EN 27/02/201701/03/2002Language:
English
Version:
27/02/2017
File size:
227.1 KB
File name:
KA00147FA6_1316.pdf
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Short Instruction (KA)
Liquiphant M FTL50,FTL51, FTL50H, FTL51H Operating Instructions
PointLevel Switch with compact housing
EN 29/06/201601/01/2006Language:
English
Version:
29/06/2016
File size:
770.2 KB
File name:
KA00220FA6_1316.pdf
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Installation Instructions (EA)
Diagnostics plug Installation instruction
Liquiphant M/S/FailSafe, Soliphant T/M
EN 24/04/201511/10/2012Language:
English
Version:
24/04/2015
File size:
71.5 KB
File name:
EA01063FA2_0215.pdf
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Installation Instructions (EA)
Cover for housing T13 terminal compartment Installation instruction
Liquiphant M/S, Soliphant M, Liquicap M, Solicap M/S
EN 24/02/202215/08/201409/08/2012Language:
English
Version:
24/02/2022
File size:
119 KB
File name:
EA01050FA2_0322.pdf
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Installation Instructions (EA)
Cover for housing F27 Installation instruction
Liquihant M/S, Soliphant M, Liquicap M, Solicap M/S
EN 11/08/201416/01/201409/08/2012Language:
English
Version:
11/08/2014
File size:
136.4 KB
File name:
EA01047FA2_0314.pdf
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Installation Instructions (EA)
Cover for housing T13 electronic compartment Installation instruction
Liquiphant M/S, Soliphant M, Liquicap M, Solicap M/S
EN 11/08/201409/08/2012Language:
English
Version:
11/08/2014
File size:
164.3 KB
File name:
EA01048FA2_0214.pdf
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