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Measuring principle
Vibration Liquids
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Characteristic / Application
Reliable point level switch with extension pipe for MIN and MAX safety applications up to SIL3.
Dual Sealing / Second line of defense
Modular housing concept -
Specialities
Outstanding features:
– permanent LIVE signal
monitors function safety
– failsafe design and
– high availability of the measuring values -
Supply / Communication
2-wire 4…20 mA
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Ambient temperature
-60°C…+70°C
(-76°F…+160°F) -
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) -
Main wetted parts
316L
Alloy C -
Process connection
Flange:
DN25…DN100,
ASME 1″…4″,
JIS 10K…20K
Thread:
G3/4, G1, R3/4,
R1, MNPT3/4, MNPT1 -
Sensor length
Extension pipe up to 3 m (9.8 ft)
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Communication
2-wire 4…20 mA
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Certificates / Approvals
ATEX, FM, CSA, CSA C/US, IEC Ex, NEPSI, EAC
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Safety approvals
Overfill protection WHG
Leakage Detection
SIL3 -
Design approvals
EN 10204-3.1
NACE MR0175, MR0103
ASME B31.3
AD2000 -
Marine approval
GL/ ABS/ LR/ BV/ DNV
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Options
PWIS free
Pressure tight feed through
Weather protection -
Components
Nivotester FTL825, Transmitter
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 flangesTemperature: -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 CInternational explosion protection certificates, overfill protection WHG, SIL, marine approvals
Benefits
Use in safety systems requiring functional safety to SIL3 in accordance with IEC 61508 Ed.2.0/ IEC 61511-1/ISA 84-1 and DIN EN ISO 13849Proof test: proof testing interval up to 12 years, Slave devices tested at the press of a buttonPermanent self-monitoring/internal redundancy4-20mA 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 PLCNo adjustment: quick, low-cost startupNo mechanically moving parts: no maintenance, no wear, long operating lifeMonitoring of fork for damage, corrosion, build-up and mechanical blocking