Specs at a glance
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Process temperature
-60°C...+280°C
(-76°F...+540°F) -
Process pressure / max. overpressure limit
Vacuum...100 bar
(1450 psi) -
Min. density of medium
Density from 0.4 g/cm3
(0.4 SGU)
Field of application
Liquiphant FTL81 is a point level switch for use in hazardous areas with all international certificates. FailSafe overfill protection in applications with functional safety up to SIL3 with one device. Reliable measurement values, not affected by: changing media properties, flow, turbulences, gas bubbles, foam, vibrations or build-up.
Point level switch for liquids up to SIL3.
Process connections: Threads and flanges
Temperature: -60 to +280°C (-76 to +540°F)
Pressure: -1 to +100bar (-14.5 to +1,450psi)
Sensor length: Extension pipe up to 3m (9.8ft)
Sensor material: 316L, Alloy C
International explosion protection certificates, overfill protection WHG, SIL, marine approvals
Benefits
Use in safety systems requiring functional safety to SIL3 in accordance with DIN EN IEC 61508 Ed.2.0 and DIN EN ISO 13849
Proof test: proof testing interval up to 12 years, Slave devices tested at the press of a button
Permanent self-monitoring/internal redundancy
4-20mA interface (acc. to NAMUR NE 06/NE 43): easy integration via the switching unit (Nivotester FailSafe FTL825) with a two-channel output (safety contacts) and locking function or direct integration into a safety PLC
No adjustment: quick, low-cost startup
No mechanically moving parts: no maintenance, no wear, long operating life
Monitoring of fork for damage, corrosion, build-up and mechanical blocking
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| FLEX selections | Technical excellence | Simplicity |
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Most downloaded
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Explosion Protection
Product family: Liquiphant FailSafe
Russian version - 06/2019
Product root: FTL80-, FTL81-, FTL85- Region: Russia, Eurasian Economic Union Approval agency: EAC Protection: Ex d IIC T6...T2 Ga/Gb, Ex d IIC T6...T3 Ga/Gb, Ex d e 020 045 035, 080~035 020 050 035, Ex ia IIC T6...T2 Ga, Ex ia IIC T6...T2 035, 080~070 020 045 045, Ex ia IIC T6...T3 Ga, Ex ia IIC T6...T3 Ga/Gb, 080~070 020 050 045, Ex ia IIIC Txxx°C Da/Db, Ex nA IIC T6...T2 Ga/Gc, 080~175 020 050 045, Ex ta IIIC Txxx°C Da/Db
Language:
Russian
Version:
21/06/2019
File size:
2.3 MB
File name:
EAEC_RU_C-DE.AA87.B.0015419.pdf
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Explosion Protection
Product family: Liquiphant FailSafe
English version - 07/2021
Product root: FTL80-, FTL81-, FTL85- Region: Great Britain Approval agency: CML Protection: Ex d, Ex i
Language:
English
Version:
30/07/2021
File size:
130.5 KB
File name:
CML 21UKEX2637X Iss. 0.pdf
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101 documents
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Technical Information (TI)
TI Weld-in adapter, process adapter and flanges
Level, 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
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Technical Information (TI)
Liquiphant FailSafe FTL80, FTL81, FTL85 Technical Information
Vibronic
Point level switch for liquidsEN 04/06/201316/07/2012Language:
English
Version:
04/06/2013
File size:
678.4 KB
File name:
TI01026FEN_0213.pdf
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Operating Instruction (BA)
Liquiphant FailSafe FTL80, FTL81, FTL85 Operating Instructions
Vibronic
Point level switch for liquidsEN 04/06/201316/07/2012Language:
English
Version:
04/06/2013
File size:
768.4 KB
File name:
BA01037FEN_0213.pdf
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Short Instruction (KA)
Liquiphant M/S FTL51, FTL71, FTL81
High Pressure Sliding Sleeve
G 1 1/2, NPT 1 1/2EN 09/05/201731/07/201001/05/200813/10/2005Language:
English
Version:
09/05/2017
File size:
280 KB
File name:
KA00154FA6_1317.pdf
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Short Instruction (KA)
Liquiphant M/S FTL51, FTL71, FTL81 Operating Instructions
High Pressure Sliding Sleeve
G 1, NPT 1EN 09/05/201731/07/201001/05/200801/10/2005Language:
English
Version:
09/05/2017
File size:
295.4 KB
File name:
KA00153FA6_1317.pdf
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Short Instruction (KA)
KA Liquiphant FailSafe FTL81
Vibronic
EN 12/02/2025Language:
English
Version:
12/02/2025
File size:
962.2 KB
File name:
KA01748FEN_0125-00.pdf
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Short Instruction (KA)
Operating Instuction Liquiphant M FTL 51, FTL71, FTL81
Sliding Sleeve G 1 A, 1 NPT
for Unpressurised Operation.EN 09/05/201719/10/2005Language:
English
Version:
09/05/2017
File size:
158.9 KB
File name:
KA00151FA6_1317.pdf
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Short Instruction (KA)
Operating Instuction Liquiphant FTL 51, FTL71, FTL81 Sliding Sleeve
Sliding Sleeve G 1½ A, 1½ NPT
for Unpressurised Operation.EN 09/05/201719/10/2005Language:
English
Version:
09/05/2017
File size:
141.4 KB
File name:
KA00152FA6_1317.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 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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1 products & bundles
1 products
Often bought together
Accessories
- M12-female plug connec., 100deg,5m cable
- Cable 4x0,34, box M12, 316L, 90o, L=5m
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