
Specs at a glance
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Process temperature
-40 °C...+150 °C
(-40 °F...+302 °F) -
Process pressure / max. overpressure limit
Vacuum...64 bar
(Vacuum...928 psi) -
Min. density of medium
0.5 g/cm³ (25.0 lb/ft3)
(0.4 g/cm³ (31.2 lb/ft3) optional)
Field of application
The Liquiphant FTL43 is a point level switch for liquids and part of the Compact Line. The product line is especially developed for hygienic applications and combines compact design with full performance. The proven vibronic technology works reliably in all pumpable liquids, without media adjustment. The Liquiphant FTL43 is distinguished by its ease of use with plug & play functionality and a wide range of digital communication options.
Liquiphant FTL43 is used for point level detection in process and storage tanks as well as in pipelines.
Liquiphant FTL43 covers a wide range of hygienic applications:
Level detection in narrow skids and modules for various liquids
Pump dry run protection in pipes
Overfill protection in process tanks
Detection of media with different densities
Benefits
Outstanding ease of use due to easy commissioning with plug & play functionality
Improved process and product safety through configuration integrity - a checksum algorithm (CRC) ensures that safety relevant parameters remain unchanged
Increased productivity thanks to traceable and documented on-demand verification without process interruption and continuous diagnostics with Heartbeat Technology
Documented compliance through certified hygienic design as well as proven material conformity and traceability
User-friendly operation with guided wizards and a wide range of digital communication options
Videos
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Performance meets hygienic industry requirements: The Compact Line
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How-to-video: One-Button-Operation
Lean selection
-
Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
-
Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Success stories
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Measuring principle
Vibration Liquids
-
Characteristic / Application
Advanced device for point level detection
in hygienic/aseptic applications.
Focus Food & Beverage and Life Sciences.
Compact sensor version with an optional pipe extension up to 1,5 m (5 ft).
Compact hygiene housing.
Wide range of certificates. -
Specialities
Plug and play functionalities
One-Button Operation
Heartbeat Technology
IO-Link
Bluetooth® Operation and maintenance
Surface finish: mechanical or electro-polished -
Supply / Communication
12…30V DC-PNP
IO-Link
8/16mA HART -
Ambient temperature
-40 °C...+85 °C
(-40 °F...+185 °F) -
Process temperature
-40 °C...+150 °C
(-40 °F...+302 °F) -
Process pressure / max. overpressure limit
Vacuum...64 bar
(Vacuum...928 psi) -
Min. density of medium
0.5 g/cm³ (25.0 lb/ft3)
(0.4 g/cm³ (31.2 lb/ft3) optional) -
Main wetted parts
316L
-
Process connection
Threads (for weld-in adapter):
G3/4A, G1A
Flanges:
DN25...DN50 (EN1092-1)
NPS 2" Cl.150 (ASME B16.5, RF) -
Process connection hygienic
Tri-Clamp
DIN 11851, DIN11864-1
Ingold
Flush mount
DRD
SMS1145
Varivent (Varinline) -
Sensor length
Compact sensor
Short tube/Preferential length
148mm…1500mm (6,00…59") -
Communication
IO-Link
HART
Bluetooth® wireless technology -
Certificates / Approvals
ATEX, IEC Ex, CSA C/US, JPN Ex, KC Ex,
INMETRO Ex, NEPSI Ex/CCC, UK Ex -
Safety approvals
Overfill protection WHG
-
Design approvals
Inspection certificate 3.1, EN10204
Conformity to cGMP
Declaration of Conformity ASME B31.3
AD2000
CRN approval -
Hygienic approvals
3-A
EHEDG
CoC-ASME BPE
EU Food Contact Material (EC) 1935/2004
US Food Contact Material FDA CFR 21
CN Food Contact Material GB 4806 -
Options
Customized settings
Weld-in adapter -
Components
RN22
RN42
SFP20
-
-
Technical Information (TI)
TI Liquiphant FTL43 IO-Link
English version - 09/2023
New version available in English
Vibronic
EN 30/09/2023Language:
English
Version:
30/09/2023
File size:
937.1 KB
File name:
TI01725FEN_0323-00.pdf
-
-
-
Technical Information (TI)
TI Liquiphant FTL43 HART
English version - 11/2024
New version available in English
Vibronic
EN 30/11/2024Language:
English
Version:
30/11/2024
File size:
943.3 KB
File name:
TI01762FEN_0223-00.pdf
-
-
-
Technical Information (TI)
TI Weld-in adapter, process adapter and flanges
-
Technical Information (TI)
English version - 12/2024Level, pressure and temperature measurement
EN 06/12/202425/03/202415/09/202328/10/202130/07/2021Language:
English
Version:
06/12/2024
File size:
1.3 MB
File name:
TI00426FEN_2624.pdf
-
-
-
Technical Information (TI)
TI Liquiphant FTL43 HART
-
Technical Information (TI)
English version - 11/2024Vibronic
EN 30/11/2024Language:
English
Version:
30/11/2024
File size:
943.3 KB
File name:
TI01762FEN_0223-00.pdf
-
-
-
Technical Information (TI)
TI Liquiphant FTL43 IO-Link
-
Technical Information (TI)
English version - 09/2023Vibronic
EN 30/09/2023Language:
English
Version:
30/09/2023
File size:
937.1 KB
File name:
TI01725FEN_0323-00.pdf
-
-
-
Operating Instruction (BA)
BA Liquiphant FTL43
-
Operating Instruction (BA)
English version - 05/2025Vibronic
HARTEN 16/05/202530/11/2024Language:
English
Version:
16/05/2025
File size:
1.2 MB
File name:
BA02308FEN_0325-00.pdf
-
-
-
Operating Instruction (BA)
BA Liquiphant FTL43
-
Operating Instruction (BA)
English version - 05/2025Vibronic
IO-LinkEN 16/05/202530/09/2024Language:
English
Version:
16/05/2025
File size:
1.3 MB
File name:
BA02309FEN_0325-00.pdf
-
-
-
Device Parameter (GP)
GP Liquiphant FTL43
-
Device Parameter (GP)
English version - 09/2024Vibronic
IO-LinkLanguage:
English
Version:
30/09/2024
File size:
1.1 MB
File name:
GP01228FEN_0124-00.pdf
-
-
-
Device Parameter (GP)
GP Liquiphant FTL43
-
Device Parameter (GP)
English version - 11/2024Vibronic
HARTEN 25/11/2024Language:
English
Version:
25/11/2024
File size:
952 KB
File name:
GP01232FEN_0124-00.pdf
-
-
-
Short Instruction (KA)
KA Liquiphant FTL43
-
Short Instruction (KA)
English version - 05/2025Vibronic
IO-LinkEN 19/05/202530/09/2024Language:
English
Version:
19/05/2025
File size:
923.1 KB
File name:
KA01697FEN_0225-00.pdf
-
-
-
Short Instruction (KA)
KA Liquiphant FTL43
-
Short Instruction (KA)
English version - 05/2025Vibronic
HARTEN 19/05/202530/11/2024Language:
English
Version:
19/05/2025
File size:
900.7 KB
File name:
KA01696FEN_0225-00.pdf
-
-
-
Ex Safety Instruction (XA)
XA Liquiphant FTL43, FTL60
-
Ex Safety Instruction (XA)
English version - 05/2025II 1 G Ex ia IIC T4 Ga
II 1 D Ex ia IIIB T135 °C DaLanguage:
English
Version:
20/05/2025
File size:
443.3 KB
File name:
XA03576FEN_0125-00.pdf
-
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M12-female plug connection, 90 deg, IP69
Order code71638253 -
M12-female plug connec., straight, IP69
Order code71638191
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