Endress+Hauser Liquiphant M FTL51C Technical Information

Endress+Hauser Liquiphant M FTL51C Technical Information

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TI00347F/00/EN/13.16
71310310
Products
Technical Information
Liquiphant M
FTL51C
Vibronic
Point level switch for all kinds of liquids
with high corrosion-resistant coating
Application
The Liquiphant M is a point level switch for use in all liquids.
– for temperatures of –50 °C to 150 °C (-58 to 302 °F)
– for pressure up to 40 bar (580 psi)
– for viscosities up to 10000 mm
– for densities of 0.5 g/cm
The device functions reliably regardless of flow, turbulence, bubbles, foam, vibration,
solids content or buildup, making the Liquiphant an ideal substitute for float switches.
All the wetted parts of the sensor (process connection, extension pipe and tuning fork)
are coated in enamel or various synthetic materials, making the point level switch
suitable for applications in very aggressive liquids.
International approvals certify use in hazardous areas.
Your benefits
• Use in safety systems requiring functional safety to SIL2/SIL3 in accordance with IEC
61508/IEC 61511-1
• Optimally adapted to the process with a wide range of materials for corrosion-
resistant coating
• Large number of process connections to choose from
– Flanges for various standards
– Universal usage
• No adjustment: quick, low-cost startup
• No mechanically moving parts: no maintenance, no wear, long operating life
• FDA-approved material (PFA Edlon)
Solutions
/s (cSt)

(SGU) or 0.7 g/cm
(SGU)
Services

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Summary of Contents for Endress+Hauser Liquiphant M FTL51C

  • Page 1 Products Solutions Services TI00347F/00/EN/13.16 71310310 Technical Information Liquiphant M FTL51C Vibronic Point level switch for all kinds of liquids with high corrosion-resistant coating Application The Liquiphant M is a point level switch for use in all liquids. – for temperatures of –50 °C to 150 °C (-58 to 302 °F) –...
  • Page 2: Table Of Contents

    Liquiphant M FTL51C Table of contents Application ........4 Connectable load .
  • Page 3 Ordering information ......33 Product structure Liquiphant M FTL51C ....33 Accessories .
  • Page 4: Application

    Liquiphant M FTL51C Application Point level detection Maximum or minimum detection in tanks or pipes containing all kinds of liquids, including use in hazardous areas. Particularly suitable for very aggressive liquids that to high level of corrosion protection. L00-FTL51Cxx-11-05-xx-xx-001 Function and system design Measuring principle The sensor' s fork vibrates at its intrinsic frequency.
  • Page 5: Electronic Versions

    Liquiphant M FTL51C Electronic versions FEL51: Two-wire AC version; Switches the load directly into the power supply circuit via an electronic switch. FEL52: Three-wire DC version; Switches the load via the transistor (PNP) and separate connection e.g. in conjunction with programmable logic controllers (PLCs), DI modules as per EN 61131-2.
  • Page 6: Electronic Insert Fel51 (Ac 2-Wire)

    Liquiphant M FTL51C Electronic insert FEL51 (AC 2-wire) Power supply Supply voltage: AC 19 to 253 V Power consumption: < 0.83 W Residual current consumption: < 3.8 mA Short-circuit protection Overvoltage protection FEL51: overvoltage category III Electrical connection Two-wire AC connection Switches the load directly into the power supply circuit via an electronic switch.
  • Page 7 Liquiphant M FTL51C Selection guide for relays 207 230 253 TI00328F_001 Minimum nominal power of load nominal power in [W] / [VA] operating voltage in [V] Position Operating voltage Nominal power min. max. 24 V > 1.3 VA < 8.4 VA...
  • Page 8: Electronic Insert Fel52 (Dc Pnp)

    Liquiphant M FTL51C Electronic insert FEL52 (DC PNP) Power supply Supply voltage: DC 10 to 55 V Ripple: 1.7 V, 0 to 400 Hz  Current consumption: 15 mA  Power consumption: 0.83 W  Reverse polarity protection Overvoltage protection FEL52: overvoltage category III...
  • Page 9: Electronic Insert Fel54 (Ac/Dc With Relay Output)

    Liquiphant M FTL51C Electronic insert FEL54 (AC/DC with relay output) Power supply Supply voltage: AC 19 to 253 V, 50/60 Hz or DC 19 to 55 V Power consumption: 1.3 W  Reverse polarity protection Overvoltage protection FEL54: overvoltage category III...
  • Page 10: Electronic Insert Fel55 (8/16 Ma)

    Liquiphant M FTL51C Electronic insert FEL55 (8/16 mA) Power supply Supply voltage: DC 11 to 36 V Power consumption: < 600 mW Reverse polarity protection Overvoltage protection FEL55: overvoltage category III Electrical connection Two-wire connection for separate switching unit For separate switching unit.
  • Page 11: Electronic Insert Fel56 (Namur L-H Edge)

    Liquiphant M FTL51C Electronic insert FEL56 (NAMUR L-H edge) Power supply Supply voltage: DC 8.2 V ±20 % Power consumption: < 6 mW at I < 1 mA; < 38 mW at I = 2.8 mA Connection data interface: IEC 60947-5-6...
  • Page 12: Electronic Insert Fel58 (Namur H-L Edge)

    Liquiphant M FTL51C Electronic insert FEL58 (NAMUR H-L edge) Power supply Supply voltage: DC 8.2 V ±20 % Power consumption: < 6 mW at I < 1 mA; < 38 mW at I = 3.5 mA Connection data interface: IEC 60947-5-6...
  • Page 13: Electronic Insert Fel57 (Pfm)

    Power consumption: < 150 mW Reverse polarity protection Electrical connection Two-wire connection for separate switching unit For connecting to Endress+Hauser switching units FEL57 Nivotester FTL320, FTL325P, FTL370, FTL372, FTL375P (also with proof test). Output signal jump of the PFM signal from high to low frequency when sensor is covered.
  • Page 14: Output Signal

    Liquiphant M FTL51C Switching behavior of the connected device: Fail-safe mode Setting Fork Switching status of relay in switching unit set at at FEL57 on = energised off = de-energised switching unit Test start End of test start (power off) (power on) >...
  • Page 15: Electronic Insert Fel50A (Profibus Pa)

    Liquiphant M FTL51C Electronic insert FEL50A (PROFIBUS PA) Power supply Bus voltage: DC 9 to 32 V Bus current: • 12.5 mA +/– 1.0 mA (software version: 01.03.00, hardware version: 02.00) • 10.5 mA +/– 1.0 mA (software version: 01.03.00, hardware version: 01.00)
  • Page 16: Output Signal

    Liquiphant M FTL51C Output signal Setting Level LEDs FEL50A green yellow OUT_D = 0 PA bus signal inverted OUT_D = 1 PA bus signal OUT_D = 0 PA bus signal = lit inverted OUT_D = 1 = unlit PA bus signal...
  • Page 17: Electronic Insert Fel50D (Density)

    Liquiphant M FTL51C Electronic insert FEL50D (density) Power supply Frequency range: 300 to 1500 Hz Signal level: 4 mA Pulse height: 16 mA Pulse width: 20 μS Electrical connection Two-wire connection at Density Computer FML621 For connecting to the density and concentration computer FEL50D FML621.
  • Page 18: Operating Principle

    Liquiphant M FTL51C Operating principle Measuring the density of a liquid medium in pipes and tanks. Also suitable for use in hazardous areas, and preferably for applications in the chemical and food industry. Endress+Hauser RMM621 FML621 PLC/SPS Endress+Hauser RMM621 FML621...
  • Page 19: Connection And Function

    Liquiphant M FTL51C Connection and function  Connecting cables • Electronic inserts: cross-section 2.5 mm (14 AWG); strand in ferrule as per DIN 46228   • Protective ground in housing: cross-section 2.5 mm (14 AWG)   • External equipotential bonding connection on housing: cross-section...
  • Page 20: Operating Conditions

    Liquiphant M FTL51C • When fork is exposed: 1.0 s • Available on request: 0.2 s; 1.5 s or 5 s (when the tuning fork is covered or exposed) Operating conditions Installation instructions Switch points on the sensor depend on the mounting position, with reference to water, ...
  • Page 21 Liquiphant M FTL51C Position the fork so that the narrow edge of the tines is vertical to ensure that the liquid can run off easily. With buildup on the tank walls: * Ensure that there is sufficient distance between the buildup expected on the tank wall and the fork.
  • Page 22: Orientation

    Liquiphant M FTL51C Support the device in the event of a severe dynamic load. Support is possible only in conjunction with ECTFE or PFA synthetic coating. L00-FTL5xxxx-11-05-xx-xx-005 Installation location Ensure that there is adequate space outside the tank for mounting, connection and configuration.
  • Page 23: Environment

    Liquiphant M FTL51C Environment Ambient temperature range Permitted ambient temperature T at the housing depending on the medium temperature T in the tank: (158) (122) (32) (212) (32) (122) (-58) (302) (194) °C (°F) (-58) (-40) L00-FTL5xxxx-05-05-xx-xx-001 Additional temperature range for devices with a temperature spacer or pressure tight feed- through.
  • Page 24: Medium Conditions

    Liquiphant M FTL51C Medium conditions Medium temperature ECTFE: –50 °C to +120 °C (–58 °F to +248 °F) PFA: –50 °C to +150 °C (–58 °F to +302 °F) up to 230 °C (446 °F) special product on request Enamel: max. –50 °C to +150 °C (–58 °F to +302 °F) up to 200 °C (392 °F) special product on request Thermal shock 120 °C/s (248 °F/s)
  • Page 25: Mechanical Construction

    Liquiphant M FTL51C Mechanical construction Note! 2D and 3D drawings containing individual dimensions can be generated and downloaded in the Configurator on the product pages of the Liquiphant FTL5x at www.endress.com. Design Summary of all electrical and mechanical versions Housing...
  • Page 26: Dimensions (In Mm)

    Liquiphant M FTL51C Dimensions (in mm) Housing and sensor FTL51C Polyester housing F16 £76 ø85 (3.35) (2.99) £20.6 £ 81 ( 0. L00-FTL51Cxx-06-05-xx-xx-025 Stainless steel housing F15 £64 ø76 (ø2.99) (2.52) L00-FTL51Cxx-06-05-xx-xx-126 Aluminum housing F17/F13 £69 Stainless steel housing (316L) F27 (2.72)
  • Page 27: Weights

    Liquiphant M FTL51C Note! The switch points of the Liquiphant M are at other positions to those of the previous version Liquiphant II. Bushings: temperature spacer, pressure tight feed-through Temperature spacer Provides sealed insulation for the vessel and normal ambient temperatures for the housing.
  • Page 28: Material

    Liquiphant M FTL51C Material Material specifications as per AISI and DIN-EN. Parts in contact with process • Extension pipe substrate Alloy C4 in the case of enamel coating: 316L (1.4435 oder 1.4404) in the case of synthetic coating • Fork substrate Alloy C4 in the case of enamel coating: 316L (1.4435) in the case of synthetic coating •...
  • Page 29: Human Interface

    Liquiphant M FTL51C Human interface Electronic inserts With FEL51, FEL52, FEL54, FEL55: • 2 switches for safety mode and density change • green LED to indicate operational status FEL51 • red LED to indicate the switching status, L1 N 19...253V AC >0,7...
  • Page 30: Certificates And Approvals

    Practice in North America for the installation of process seals Process seal according to Endress+Hauser devices are designed as either single seal or dual seal devices with an alarm in ANSI/ISA 12.27.01 accordance with ANSI/ISA 12.27.01. This means that the user does need to install for an external secondary process seal in the thermowell which is required in ANSI/NFPA 70 (NEC) and CSA 22.1...
  • Page 31: Manufacturer Declarations

    Liquiphant M FTL51C Note! Device components in contact with the process are listed in the sections "Mechanical construction" ( ä 25 ff.) and "Ordering information" ( ä 33 ff.). Manufacturer declarations The following documents can be ordered together with the document, depending on the desired device configuration: •...
  • Page 32 Liquiphant M FTL51C FM, XP, Cl. I, II, III, Div. 1, Gr. A–G FEL51/52/54, with NPT cable entry FEL55/56/57/58/50D CSA, IS, Cl. I, II, III, Div. 1, Gr. A–G PBT, St., Alu, Alu/sep. FEL55/56/57/58/50D/ with NPT cable entry 50D*** CSA, XP, Cl. I, II, III, Div. 1, Gr. A–G...
  • Page 33: Ordering Information

    Liquiphant M FTL51C Ordering information Product structure Liquiphant Design Basic weight M FTL51C FTL51C With extension pipe 0.6 kg Approval: A Non-hazardous area ATEX/NEPSI II 3 G EEx nC II T6 Overfill protection to WHG (Germany) ATEX/NEPSI II 3 D T 85 °C*...
  • Page 34 PFA (conductive) Length: type II** Enamel Special version **) If replacing devices: When vertically mounting a Liquiphant M FTL51C with length II, the switch point is at the same level as for a Liquiphant II FTL360, FTL365, FDL30, FDL35 Electronics; output:...
  • Page 35 Liquiphant M FTL51C Electronics; output: FEL58 NAMUR + test keys (H-L signal) Special version Housing; cable entry: F27 316L NEMA6P; Thread NPT ¾ F16 Polyester NEMA4X; Thread NPT ½ F13/F17 Alu NEMA4X; Thread NPT ¾ 0.5 kg F15 316L NEMA4X;...
  • Page 36: Accessories

    Liquiphant M FTL51C Accessories Transparent cover For polyester housing F16 Material: PA 12 Weight: 0.04 kg Order number: 943461-0001 L00-FTL5xxxx-03-05-xx-xx-016 Cover with sight glass For stainless steel housing F15 Material: AISI 316L Weight: 0.16 kg – With glass sight glass Order number: 943301-1000 –...
  • Page 37: Documentation

    Electronic insert FEL50A for Liquiphant M/S PROFIBUS PA BA00141F/00/en Liquiphant M density, density computer FML621 BA00335F/00/en Liquiphant MFTL51C KA00162F/00/a6 Liquiphant M FTL51C-######## 7 ## KA00165F/00/a6 Liquiphant M density FTL50, FTL51 Electronic insert: FEL50D KA00284F/00/a6 Liquiphant M density FTL50H, FTL51H Electronic insert: FEL50D...
  • Page 38: Safety Instructions (Atex)

    Liquiphant M FTL51C Liquiphant M with electronic insert FEL51 (MIN) SD00185F Liquiphant M with electronic insert FEL52 (MAX) SD00163F Liquiphant M with electronic insert FEL52 (MIN) SD00186F Liquiphant M with electronic insert FEL54 (MAX) SD00162F Liquiphant M with electronic insert FEL54 (MIN)
  • Page 39 Liquiphant M FTL51C Liquiphant M (NI), FTL50(H), FTL51(H), FTL51C, FTL70, FTL71 Class I, Div. 2, Groups A, B, C, D Class II, Div. 2, Groups F, G Class III ZD00043F Liquiphant M, Liquiphant S (cCSAus / XP) Class I, Groups A, B, C, D...
  • Page 40 71310303 71310310 www.addresses.endress.com...

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