Senzor nivel ENDRESS

TechnicalInformationTI 328F/00/en

Features and Benefits• Large selection of process

connections: universal use• Process connections from ¾" and

compact fork: also for difficult toaccess areas

• Wide variety of electronics, e.g.NAMUR, relay, thyristor, PFM signaloutput: the right connection for everyprocess control system

• No calibration: quick, low-coststart-up

• No mechanically moving parts:no maintenance, no wear,long operating life

• Monitoring of fork for damage:guaranteed function

• PROFIBUS-PA protocol:commissioning and maintenancequick and easy

ApplicationsThe Liquiphant M is a level limit switchfor use in all liquids– with a temperature between

–40 °C and +150 °C (–40 °F…+300 °F)– with a pressure up to 64 bar (930 psi)– with a viscosity up to 10000 mm2/s– with a density from 0.5 g/cm3

The function is not affected by flow,turbulence, bubbles, foam, vibration,bulk solids content or build-up.The Liquiphant is thus the idealreplacement for float switches.

FTL 50: Compact design, ideal formounting in pipes

FTL 51: With extension tube to max. 3 m

FTL 50 H, FTL 51 H: With polished forkand easy-to-clean process connectionsand housings for food andpharmaceutical applications.

High corrosion-resistant Alloy C4(2.4610) is available for the fork andprocess connections for applicationsin very aggressive liquids.

EEx ia (IS), EEx de and EEx d (XP)protection enable it to be used inexplosion hazardous areas.

Vibration Limit Switchliquiphant M FTL 50, 51, 50 H, 51 H

Level limit switch for all liquids.Suitable for use in explosion hazardous areas,food and pharmaceuticals

Liquiphant MFTL 50with aluminium housingwith separate connectioncompartment (EEx de)and thread

Liquiphant M FTL 51with aluminium housing(EEx d) and flange

Liquiphant MFTL 50with polyester housingand thread

Liquiphant MFTL 50 Hwith steel housingand Triclamp

Hauser+EndressThe Power of Know How

GeneralInformation

Manufacturer Endress+Hauser

Instrument Level limit switch

Designation Liquiphant M FTL 50, FTL 51, FTL 50 H, FTL 51 H

Technicaldocumentation TI 328F/00/en

Technical data to DIN 19259

Application Limitdetection

Maximum or minimum detection in tanks or piping containing all types of liquidsincluding use in explosion hazardous areas, food and pharmaceuticals

General Information 2

Application 2

Function and System Design 3Measuring principleModularityElectronic inserts for level limit switchesElectronic inserts for level sensorsGalvanic isolationConstruction

Input 3Measured variableMeasuring rangeProduct density

Output FEL 51 4Electrical connectionOutput signal

Output FEL 52 5Electrical connectionOutput signalPower supply

Output FEL 54 6Electrical connectionOutput signalPower supply





Output FEL 50 A 11Electrical connectionOutput signal

Output General Information 12Connecting cablesFail-safe modeSwitching timePower up response

Performance Characteristics 12

Operating Conditions 12Installation 12

MountingMounting position

Environment 14Ambient temperature rangeClimatic classDegree of protectionVibration resistanceElectromagnetic compatibility

Process conditions 15Process temperature rangeThermal shockProcess pressure rangeProcess pressure limitsProduct stateDensityViscosityBulk solids content

Mechanical Construction 15DesignDimensionsMaterialsProcess connections

Human Interface 19OperationDisplay and operating elements

Certificates and Approvals 20

Ordering 20Product structure FTL 50 / 51Product structure FTL 50 H / 51 HAccessoriesSupplementary documentation

Contents

2

Function andSystem Design

Measuringprinciple

The forks vibrate at their intrinsic frequency.This frequency is reduced when covered with liquid.The change in frequency then activates a limit switch.

Modularity

Electronic insertsforlevel limit switches

FEL 51: Two-wire AC version;Switch the load directly into the power supply circuit via the thyristor.

FEL 52: Three-wire DC version;Switch the load via the transistor (PNP) and separate connection.

FEL 54: Universal current with relay output;Switch the loads via 2 potential-free change-over contacts.

Electronic insertsfor level sensors

FEL 55: for separate switching unit; Signal transmission16 / 8 mA along two-wire cabling.

FEL 56: for separate switching unit; Signal transmission L-H edge0.6…1.0 / 2.1…2.8 mA to EN 50227 (NAMUR) along two-wire cabling.

FEL 58: for separate switching unit; Signal transmission H-L edge2.1…3.5 / 0.6…1.0 mA to EN 50227 (NAMUR) along two-wire cabling.Checking of connecting cabling and other devicesby pressing a key on the electronic insert.

FEL 57: for separate switching unit; PFM signal transmission;current pulses superposed on the power supply along the two-wire cabling.Cyclical checking by the switching unit without changing levels.

FEL 50 A: for connection to PROFIBUS-PA ;cyclic and acyclic data exchange acc. to PROFIBUS-PA Profile 3.0Discrete Input

Galvanicisolation

FEL 51, 52, 50 A: between sensor and power supplyFEL 54: between sensor and power supply and loadFEL 55, 56, 57, 58: see limit switch connected

Construction FTL 50: compactFTL 51: with extension pipeFTL 50 H: compact, with polished forks and hygienic process connectionsFTL 51 H: with extension pipe, with polished forks and hygienic

process connections

Input Measured variable Level (limit value)

Measuring range(detection range)

FTL 50: specified by mounting pointFTL 51: specified by length of sensor with extension pipe

(max. 3000 mm / 115 in)

Product density Adjustment on the electronic insert >0.5 g/cm3 or >0,7 g/cm3

FEL 51, 52, 54 FEL 55, 56, 57, 58, 50 A

Ex i

…

…

EX EX

Switching unitPLCIsolatingamplifierSegmentcoupler

Level sensorLiquiphant M FTLwith electronic insertsFEL 51, FEL 52, FEL 54

Level sensorLiquiphant M FTLwith electronic insertsFEL 55, FEL 56, FEL 57, FEL 58for connecting to aseparate switching unit orisolating amplifierFEL 50 A for connection toPROFIBUS-PA segment

3

OutputFEL 51

Electricalconnection

Two-wire AC connection

Always connect in series with a load!

Check the following:• the residual current in blocked

state (up to 3.8 mA)• that for low voltage– the voltage drop across the load,

is such that the minimum terminalvoltage at the electronic insert (19 V)when blocked is not too low.

– the voltage drop across theelectronic insert when openedis observed (up to 12 V)

• that a relay cannot de-energisewith a retaining current below 3.8 mA.If this is the case, a resistor should beconnected parallel to the relay.

Output signal

Signal on alarm Output signal on power failure or with damaged sensor: < 3.8 mA

Load(connectable load)

Load switched directly into the power supply circuit via thyristor.Transient (40 ms) max. 1.5 A, max. 375 VA at 253 V or max. 36 VA at 24 V(not short-circuit protected)continuous max. 89 VA at 253 V, max. 8.4 VA at 24 Vmin. 2.5 VA at 253 V (10 mA), min. 0.5 VA at 24 V (20 mA)Voltage drop across FEL 51 max. 12 VResidual current with blocked thyristor max. 3.8 mAOvervoltage protection FEL 51: Category III

L1

U~ max. 253 V50/60 Hz

1

N N PE

2

1A

min.19 V

FEL 51

externalload

(AC)

Max.

Min.

1 2

1 2

1 2

1 2

IL

IL

< 3,8 mA

< 3,8 mA

Fail-safecircuit

Level Output signal LEDsgreen red

IL = load current (closed)< 3.8 mA = residual current (blocked)

= lit= unlit

4

OutputFEL 52


Three-wire DC connection

Preferably used with programmablelogic controllers (PLC).Positive signal at the switching outputof the electronics (PNP);Output blocked on reaching limit.

Output signal

Signal on alarm Output signal on power failure or with damaged sensor: < 100 µA


Load switched via transistor and separate PNP connection.Transient (1 s) max. 1 A, max. 55 V (pulsed overload and short-circuit protected);continuous max. 350 mA;max. 0.5 µF at 55 V, max. 1.0 µF at 24 V;Residual voltage < 3 V (with conductive transistor);Residual current < 100 µA (with blocked transistor)

Power supply 10 V…55 V DCRipple max. 1,7 V, 0…400 HzCurrent consumption max. 15 mAPower consumption max. 0,83 WReverse polarity protectionOvervoltage protection FEL 52: Category III

L+

U– 10…55 V

1

L–

2 3(+)

–

0,5A

FEL 52

e.g.RelayPLC

(DC)

Max.

Min.

L+ +1 3

L+ +1 3

1 3

1 3

IL

IL

< 100 µA

< 100 µA

Output signalLevelFail-safecircuit

LEDsgreen red

IL = load current (closed)< 100 µA = residual current (blocked)

= lit= unlit

5

OutputFEL 54


Universal current connectionwith relay output

Power supply:Note the differences in voltagefor DC and AC.

Output:When connecting an instrumentwith high inductance, provide a sparkarrester to protect the relay contact.A fine-wire fuse (depending on theload connected) protects the relaycontact on short-circuiting.Both relay contracts switchsimultaneously.

Output signal

Signal on alarm Output signal on power failure or with damaged sensor: Relay de-energised


Loads switched via 2 potential-free change-over contacts.I~ max. 6 A, U~ max. 253 V;P~ max.1500 VA, cos ϕ = 1, P~ max. 750 VA, cos ϕ >0.7;I– max. 6 A to 30 V, I– max. 0.2 A to 125 V.When connecting a low-voltage circuit with double isolation accordingto IEC 1010 the following applies:Total of voltages of relay output and power supply max. 300 V

Power supply 19 V…253 V AC, 50/60 Hz or 19 V…55 V DCPower consumption max. 1.3 WReverse polarity protectionOvervoltage protection FEL 54: Category III

L1L+

a au u

U~ 19…253 V, 50/60 HzU– 19… 55 V

1 4 73 6

NL–

r r

2 5 8

0,5A

FEL 54

PE

(AC), 50/60 Hz(DC)

NO C NC NO C NC

Max.

Min.

3 54

3 54

6 87

6 87

3 54

3 54

6 87

6 87


LEDsgreen rot

= relay energised= relay de-energised= lit= unlit

6

OutputFEL 55


Two-wire connectionfor separate switching unit

E.g. for connecting to programmablelogic controllers (PLC).Output signal jump from highto low current on limit.(H-L edge)

Output signal

Signal on alarm Output signal on power failure or with damaged sensor: < 3.6 mA


U – 11 VLoad R =

16.8 mA

U = DC connecting voltage 11 V…36 VOvervoltage protection FEL 55: Category III

–U– 11…36

z.B. SPS

1

+

2

FEL 55

EX

EXI

EEx ia

(DC)

e.g.

Max.

Min.

+2 1

+2 1

+2 1

+2 1

~16 mA

~8 mA

~8 mA

~16 mA


LEDsgreen red

~16 mA = 16 mA ± 5 %~ 8 mA = 8 mA ± 6 %

= lit= unlit

Explosion hazardous area

Non explosionhazardous area

7

OutputFEL 56



For connecting to isolating amplifiersacc. to NAMUR (EN 50227),e.g. FXN 421, FXN 422,FTL 325 N, FTL 375 N orCommutec SIN 100, SIN 110from Endress+Hauser.Output signal jump from lowto high current on limit.(L-H edge)

Connecting to multiplexer:Adjust clock time to min. 2 s.

Output signal

Signal on alarm Output signal with damaged sensor: > 2.1 mA


See Technical Data of isolating amplifier connected according to EN 50227(NAMUR)

–

1

+

2

FEL 56

EX

EXI

EEx ia



Isolating amplifierto EN 50227(NAMUR)

Max.

Min.

+2 1

+2 1

+2 1

+2 1

0,6…1,0 mA

0,6…1,0 mA

2,1…2,8 mA

2,1…2,8 mA


LEDsgreen red

= lit

= flashes

= unlit

8

OutputFEL 58



For connecting to isolating amplifiersacc. to NAMUR (EN 50227),e.g. FXN 421, FXN 422FTL 325 N, FTL 375 N orCommutec SIN 100, SIN 110from Endress+Hauser.Output signal jump from highto low current on limit.(H-L edge)

Additional function:Test key on the electronic insert.Pressing the key breaks theconnection to the isolating amplifier.Note:The test function can beused for Ex-d applications providedthat no explosive atmosphere ispresent near to the housing.

Connecting to multiplexer:Adjust clock time to min. 2 s.

Output signal

Signal on alarm Output signal with damaged sensor: < 1.0 mA


See Technical Data of isolating amplifier connected according to EN 50227(NAMUR)Connection also to isolating amplifiers which have special safety circuits(I > 3.0 mA)

–

1

+

2

FEL 58

EX

EXI

Isolating amplifierto EN 50227(NAMUR)

EEx ia



Max.

Min.

+2 1

+2 1

+2 1

+2 1

2,1…3,5 mA

2,1…3,5 mA

0,6…1,0 mA

0,6…1,0 mA


LEDsgreen yellow

= lit

= flashes

= unlit

9

OutputFEL 57



For connecting to switching unitsNivotester FTL 320, FTL 325 P,FTL 375 P, FTL 370, FTL 372(also with cyclical checking),Commutec SIF 101, SIF 111from Endress+Hauser.Output signal jump of the PFMsignals from high to low frequencywhen sensor covered.Switching between minimum/maximum-fail-safe in the Nivotester

Additional function“Cyclical checking”:After interruption of the power supplya clock is activated which checksthe sensor and electronics without anychange in level.Approved for overspill protection(acc. to WHG, Germany)Switch on the electronic insert:– Standard (STD):

for weakly corrosive liquids;Simulation approx. 8 sFork free – covered – free.

– Extended (EXT):for strongly corrosive liquids;Simulation approx. 41 sFork free – covered – corroded – free.

The check is activated and monitored by the switching unit.

Switching response of the unit:

* De-energised on power supply failure

Please note the switching response and function of the plant,especially when replacing a Liquiphant with an EL 17 Z or FEL 37 electronic insertby a Liquiphant M with the FEL 57 electronic insert.

Output signal

Signal on alarm Output signal on power failure or with damaged sensor: 0 Hz


Potential-free relay contacts in the switching unitsNivotester FTL 320 / 325 P / 370 / 372 / 375 P or Commutec SIF 101, SIF 111For contact load see the technical data of the switching unit.

–

1

+

2

FEL 57

EX

EX

7 8

33 34

37 38

PFM50 /150 Hz

d4 d2

z6 d6

z4 z2

2 1

Explosionhazardous area


NivotesterFTL 320FTL 325 P 1CHFTL 325 P 3CH

FTL 370/372FTL 375 P 1CHInput 1

FTL 372FTL 375 P 2CHInput 2

FTL 375 P 3CHInput 3

Commutec SSIF 101, SIF 111

Fail-safe modeset atswitching unit

Max.

Max.

Max.

Max.

Min.

Min.

Min.

Min.

Settingat FEL 57

STD

EXT

STD

EXT

STD

EXT

STD

EXT

Fork

free

free

covered

covered

free

free

covered

covered

Switching status of relay in switching uniton = energised off = de-energised

Test start End of test start(power off) (power on)> 3 s

on

on

off

off

off

off

on

on

off

off

off

off

~ 3 s on

~ 3 s on

~ 3 s on

~ 3 s on

~ 5 s off

~ 5 s off

off

off

~ 5 s off

~ 7 s off

~ 5 s off

~ 5 s off

~ 2 s on

~ 2 s on

~ 3 s on

on

~ 35 s on ~ 3 s off

~ 2 s off

~ 35 s off

off

~ 30 s on

on

on

on

off

*

*

*

*

150 Hz

50 Hz

Output signal(PFM)

LevelFail-safecircuit

LEDsgreen yellow

= lit= unlit

10

OutputFEL 50 A


Two-wire connectionfor power supplyand data transmission

For connection to PROFIBUS-PA

Additional functions:– Digital communication enables

the representation, reading and editingof the following parameters:Fork frequency, switch-on frequency,switch-off frequency, switch-on time,switch-off time, measured value status,density switch.

– Security locking of matrix possible.– Selection of WHG mode is possible

(WHG approval).– For detail information see BA 198F.

Output signal

Signal on alarm Failure information can be opened using the following interfaces:Yellow LED flashing, status code, diagnostic code; see BA 198F

PA–

U... 9 V...32 V (DC)

PA+

FEL 50 A

EX

EX

Explosionhazardous area


Segment coupler

PROFIBUS-PA

PLC

PROFIBUS-DP

PROFIBUS-PAEX

EX

PC with Commuwin IIProficard or Profiboard

Segment coupler

GN YE FEL 50 A

OUT_D = 0PA-Bussignal




Setting Level

notinverted

inverted

= lit= unlit

11

OutputGeneralInformation

Connecting cables Electronic inserts: cable section max. 2.5 mm2;strand in cable sleeve acc. to DIN 46228

Protective earth in housing: cable section max. 2.5 mm2;External terminal for plant grounding system: cable section max. 4 mm2

Fail-safe mode Switch-over for minimum/maximum residual current safety on electronic insert(with FEL 57 on Nivotester only)Max. = Maximum fail-safe: The output switches to the power fail response

when the fork is coveredFor use with e.g. overspill protection

Min. = Minimum fail-safe: The output switches to the power fail responsewhen the fork is freeFor use with e.g. dry pump running

Switching time When fork is covered approx. 0.5 sWhen fork is free approx. 1.0 sAdditionally settable for PROFIBUS-PA: 0.5...60 s

Power up response When switching on the power supply the output assumes the alarm signal.After max. 2 s it assumes the correct switching mode (Exception: FEL 57)

PerformanceCharacteristics

Referenceconditions

Ambient temperature: 23 °CProduct temperature: 23 °CProduct density: 1 g/cm3 (water)Viscosity: 1 mm2/sPressure pe: 0 barSensor mounting: vertically from aboveDensity switch: to > 0.7

Measured error Specified by mounting position: max. +/– 1mm

Repeatability 0,1 mm

Hysteresis approx. 2 mm

Effects of producttemperature

Max. +1.4 mm … –2.8 mm(–40 °C … +150 °C)

Effects of density Max. +4.8 mm … –3.5 mm(0.5 g/cm³ … 1.5 g/cm³)

Effects of pressure Max. 0 mm … –2.5 mm(0 bar … 64 bar)

OperatingConditions

Installation

Mounting Switchpoints on the sensor depend on the mounting position,with reference to water, density 1 g/cm3, 23 °C, pe 0 bar.

Note: The switchpoints of the Liquiphant M are at other positions to thoseof the previous version Liquiphant II.

13m

m Switchpointfor reference conditions

13m

m

4m

m

36m

m

Mounting from above Mounting from below Mounting from the side

12

Examples of mounting with regard to the viscosity ν of the liquidand the amount of build-up

Optimum mounting, without problem even with high viscosity:

Position the fork so that the narrow edge of the tines is vertical. This ensures thatthe liquid can run off easily.

With build-up on the tank walls:

* Ensure that there is sufficient distance between the build-up expected on thetank wall and the fork.

Mounting positions with low viscosity (up to 2000 mm²/s / 2000 cSt):

* Deburr the nozzle surfaces

Mounting in piping from 2"

Flow velocities up to 5 m/s with a viscosity of 1 mm2/s and density 1 g/cm3.(Check the function for other operating conditions.)

Vertical from above Flush-mounted from the side

**

Protruding into the tank from the sideVertical from above

min. 25min. DN 50

**

(min. 2") (min. 1 in)

13

Support the Liquiphant M FTL 51 (H) with high dynamic loads

Ensure adequate space outside the tank for mounting, electrical connectionand adjustment

Mounting position FTL 50 (H), and FTL 51 (H) with short pipe (up to approx. 500 mm / 20 in),any position,FTL 51 (H) with long pipe, vertical

Environment

Ambienttemperature range

Permissible ambient temperature T 1 at the housingdependent on the product temperature T 2 in the vessel:

Ambienttemperature limits

–50 °C…+70 °C (–60 °F…+160 °F)(function with reduced data values)

Storagetemperature

–50 °C…+80 °C (–60 °F…+180 °F)

Climatic class Climatic protection to IEC 68, Part 2-38, Fig. 2a

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ......

....

....

....

....

....

....

....

....

....

..

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..

....

....

....

....

....

....

....

....

....

....

...

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..

....

....

....

....

....

....

....

....

....

....

....

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .

....

....

....

....

....

....

....

....

....

....

..

70 °C

T1T1

50 °C

0 °C–40 °C

–40 °C

0 °C 50 °C

*

100 °C 150 °C T2

T2

90 °C

* additional temperature range for sensors with a temperature spacer or pressure-tight bushing

x °C = (1.8 x + 32) °F

14

Degree ofprotection

Polyester, steel and aluminium housings: IP 66 / IP 67 to EN 60529Aluminium housing (EEx d, EEx de): IP 66 / IP 68 to EN 60529 (1 m, 24 h)

Vibrationresistance

IEC 68, Part 2-6(10…55 Hz, 0.15 mm, 100 cycles)

Electromagneticcompatibility

Interference Emission to EN 61326, Electrical Equipment Class BInterference Immunity to EN 61326, Annex A (Industrial) andNAMUR Recommendation NE 21 (EMC)

Process conditions

Processtemperature range

–40 °C…+150 °C (–40 °F…+300 °F)For exceptions see process conditions

Thermal shock Max. 120 °C/s (max. 250 °F/s)

Process pressurerange pe

–1 bar…+64 (–14.5 psi…930 psi) bar over the entire temperature rangeFor exceptions see process connections

Process pressurelimits

Burst pressure of diaphragm 200 bar (2900 psi)

Product state Liquid

Density Min. 0.5 g/cm³

Viscosity Max. 10000 mm²/s (max. 10000 cSt)

Bulk solids content Max. ø5 mm (0.2 in)

MechanicalConstruction

Design Summary of all electrical and mechanical versions

FEL 51: Two-wire AC connectionFEL 52: Three-wire DC connection PNPFEL 54: Universal connection, 2 relay outputsFEL 55: Output 16 / 8 mA for separate switching unitFEL 56: Output 0.6…1,0 / 2,1…2.8 mA

for separate switching unit (NAMUR)FEL 58: Output 2,1…3,5 / 0,6…1,0 mA

for separate switching unit (NAMUR)FEL 57: Output 150 / 50 Hz, PFM,

for separate switching unit (Nivotester)FEL 50 A:Digital communication PROFIBUS-PA

Polyester housing Steel housing(AISI 316 L)

Aluminium housing(also for EEx d)

G 1 A (BSP 1),DIN ISO 228/IR 1 (BSPT 1),DIN 29991 NPT,ANSI B 1.20.1(41 AF)

Diversehygienicandasepticconnections

Flangesto DIN,ANSI,JISfrom DN 25 / 1"

G 3/4 A (BSP 3/4),DIN ISO 228/IR 3/4 (BSPT 3/4),DIN 29993/4 NPT,ANSI B 1.20.1(32 AF)

Compact With extensiontube to 3 m (115 in)

Plug-in electronicinserts to mountin the housing

Housings

Feedthroughs

Processconnections

Sensors

Aluminium housingwith separateconnection compartment(also for EEx de a. EEx d)

Temperaturespacer

Pressure-tightbushing

15

Dimensions Housing and sensor FTL 50 (H)

Note: The switchpoints of the Liquiphant M are at other positionsto those of the previous version Liquiphant II.

100 mm = 3.94 in

Feedthroughs: Temperature spacer, Pressure-tight bushing

Temperature spacerProvides sealed insulation for thevessel and normal ambienttemperatures for the housing.

Pressure-tight bushingProtects the housingfrom pressures up to 64 barif the sensor is damaged.Provides sealed insulation for thevessel and normal ambienttemperatures for the housing.

**

**

ø80

ø76

ø85

max. 60

max. 65

max. 65

max. 64

max. 97

max. 76

max

.150

max

.190

max

.173

~25

10

ø21,5

17,5

max

.40,

7max

.155

* see process connections

Polyester housing

Steel housing

Aluminium housing

Aluminium housingwith separate connectioncompartment

Vesselinsulation

additional length140 mm

16

Process connections

Processconnection

Dimensions Accessories Pressure pressureProcess temperature

G 3/4 A (BSP 3/4)DIN ISO 228/I

with elastomerflat sealto DIN 7603(supplied)

GQ2GQ5

max. 64 barmax. 150 °C

G 3/4 A (BSP 3/4)DIN ISO 228/I

for flush-mountedinstallation inwelded sleeve

GQ2GQ5

Welded sleeve(without forkpositioning)with silicone O-ringEndress+Hauser52001052See Accessories



G 1 A (BSP 1)DIN ISO 228/I

with elastomerflat sealto DIN 7603(supplied)

GR2GR5


G 1 A (BSP 1)DIN ISO 228/I

with seal surfacefor flush-mountedinstallation inwelded sleeve

GW2 Welded sleeve(without forkpositioning)with silicone O-ringEndress+Hauser52001051See Accessories



3/4 NPTANSI B 1.20.1

or

R 3/4 (BSPT 3/4)DIN 2999

GM2GM5

GE2GE5


1 NPTANSI B 1.20.1

or

R 1 (BSPT 1)DIN 2999

GN2GN5

GF2GF5


FlangesANSI B 16.5DIN 2527DIN 2526DIN 2512DIN 2512JIS B 2210

A##B##C##F##N##K##

Sealaccording to design,installed on site

See “Nominal flangepressure”, howevermax. 64 barmax. 150 °C

Triclamp1 1/2"2"ISO 2852

TC2TE2

Clamping ring andfront sealinstalled on site



SanitarycouplingDN 32DN 40DN 50DIN 11851

with screw cap

MA2MC2ME2

Sealing ringwith collar,installed on site

DN 32, DN 40:max. 40 bar to 100 °Cmax. 25 bar to 140 °C

DN 50:max. 25 barmax. 140 °C

100 mm = 3.94 in1 bar = 14.5 psix °C = (1.8x + 32) °F

Flush-mountedfor weldedadapter 1"Factory standardEndress+Hauserwith silicone seal(supplied)and screw cap

EE2 Welded adapter(fork can bepositioned)Endress+Hauser52001047

See Accessories



66,532 AF

66,532 AF

6941 AF

8041 AF

(66,5)50,532 AF

(69)50,541 AF

66,5

66,5

66,5

55,5

17

Processconnection

Dimensions Accessories Process pressureProcess temperature

AsepticDN 50DIN 11864-1Form Afor tube DIN 11850withscrew cap

HE2 Sealing ringinstalled on site


DRD

withclamped flange

PE2 Welded flangewith PTFE flat seal(fork can bepositioned)Endress+Hauser52002041See Accessories(or installed on site)



SMS2"(DN 51)

withscrew cap

UE2 Sealing ringinstalled on site


Varivent

for piping≥ DN 65≥ O.D. 3"≥ I.P.S. 3"

WE2 Clamping ring andO-ring installed on site


100 mm = 3.94 in1 bar = 14.5 psix °C = (1.8x + 32) °F

Sensor length L for FTL 51 and FTL 51 H,dependent on process connection

Any length L:148 mm…3000 mm (6 in…115 in)

Note: Switchpoints of the Liquiphant M are at other positionsto those of the previous version Liquiphant II.

Special length “L II”:With vertical mounting from above the same switchpoint as for the Liquiphant IIFTL 360, FTL 365, FDL 30, FDL 35

“L II” is dependent on process connection:115 mm with flanges and flange-like process connections99 mm with thread NPT and R (BSPT)

118 mm with thread G 1 (BSP 1)115 mm with thread G ¾ (BSP ¾)104 mm with flush-mounted 1" (E+H)

Weight See Product Structure

66,5

66,5

66,5

56,5

ø68

L

ø21,5

L

L

Thread: G 3/4 AG 1 A

Thread: 3/4 NPT1 NPTR 3/4R1

Flange and flange-like processconnections

From seal surfaceof thread adapter

From lower edgeof thread

18

Materials – Wetted part:Process connection and extension pipe: 1.4435 (AISI 316 L) or 2.4610 (Alloy C 4)Tuning fork: 1.4435 (AISI 316 L) or 2.4610 (Alloy C 4)

– Flat seal for process connections G ¾ A or G 1 A:Elastomer fibre, asbestos-free

– Polyester housing: PBT-FR (polyester)with PBT-FR cover or PA12 transparent cover,Seal of cover: EPDM

– Steel housing: 1.4404 (AISI 316 L), seal of cover: silicone– Aluminium housing: EN-AC-AlSi10Mg, plastic covered,

Seal of cover: EPDM– Cable gland: Polyamide or brass, nickel-plated– Temperature spacer: 1.4435 (AISI 316 L)– Pressure-tight bushing: 1.4435 (AISI 316 L)

Processconnections

– Parallel thread G ¾ A, G 1 A (BSP) to DIN ISO 228/Iwith flat seal to DIN 7603

– Tapered thread R ¾, R 1 (BSPT) to DIN 2999 Part 1– Tapered thread ¾ -14 NPT, 1 - 11½ NPT to ANSI B 1.20.1– Flush-mounted with welded sleeve

to factory standard Endress+Hauser (G ¾ A, G 1A)– Flush-mounted with welded adapter

to factory standard Endress+Hauser (1"), sensor can be positioned– Triclamp 1½", 2" to ISO 2852– Sanitary coupling DN 32, 40, 50 to DIN 11851– Aseptic connection DN 50 to DIN 11864-1 Form A for tube DIN 11850– SMS connection 2" (DN 51)– DRD flange– Varivent® DN 50 (50/40) to factory standard Tuchenhagen– Flanges to DIN from DN 25, for standards see Product Structure,

to ANSI B 16.5 from 1", to JIS B 2210 (RF)

HumanInterfaces

Operation Calibration on site

Display andoperating elements

With FEL 51, 52, 54, 55:2 switches for fail-safe modeand density change,green LED to indicate power on,red LED to indicate switching status,flashes on damage by corrosion on sensoror with defective electronics

With FEL 56:2 switches for fail-safe modeand density change,green LED flashes to indicate power on,red LED to indicate switching status,flashes on damage by corrosion on sensoror with defective electronics

With FEL 57:2 switches for density change-overand cyclical checking,green LED to indicate power on,yellow LED to indicate the covering status,flashes on damage by corrosion on sensoror with defective electronics

With FEL 58:2 switches for fail-safe modeand density change,green LED flashes rapidly to indicate power on,flashes slowly on damage by corrosion on sensoror with defective electronics,yellow LED to indicate switching status,Test key – breaks the cable connection

Min

Max1

2

>0,7

>0,5

FEL51

1 2

L1 N U~19...253V AC50/60Hz

I max : 350mA

Connectingterminal

LEDs Switches

19

Display andoperating elements

With FEL 50 A:8 switches for device address setting,green LED to display standby,pulsing to display communication;yellow LED to display switching state,flashing on corrosion damageto sensor or for defective electronics

Certificates andApprovals

General approvals See page 29

Other Certificates See Product Structure

Combinationsof housings andelectronic inserts

Based on the various certificates, permissible combinations of housings *)

and electronic inserts are given in the following table.*) Abbreviations: polyester = PBT, steel 1.4404 = St., Aluminium = Alu

Aluminium housing with separate connection compartment = Alu/sep.

Certificate, applications Housing Electronic inserts

A Without any special certificate(for non explosion hazardous areas)

PBT, St., Alu, Alu/sep. FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

D Overspill protection to WHG (Germany) PBT, St., Alu, Alu/sep. FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

G ATEX II 1/2 G, EEx ia IIC T6 PBT, St., Alu, Alu/sep. FEL 55, 56, 57, 58, 50 A

F ATEX II 1/2 G, EEx ia IIC T6, WHG PBT, St., Alu, Alu/sep. FEL 55, 56, 57, 58, 50 A

K ATEX II 1/2 G, EEx d IIC T6 Alu FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

L ATEX II 1/2 G, EEx d IIC T6, WHG Alu FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

I ATEX II 1/2 G, EEx de Alu/sep. FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

E ATEX II 1/2 G, EEx de, WHG Alu/sep. FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

R FM, NI, Cl. I, Div. 2, Gr. A-D St., Alu, Alu/sep.with NPT cable entry

FEL 51, 52, 54,FEL 55, 56, 57, 58

PBTwith NPT cable entry

FEL 51, 52,FEL 55, 56, 57, 58

P FM, IS, Cl. I, II, III, Div. 1, Gr. A-G PBT, St., Alu, Alu/sep.with NPT cable entry

FEL 55, 56, 57, 58

Q FM, XP, Cl. I, II, III, Div. 1, Gr. A-G Aluwith NPT cable entry

FEL 51, 52, 54,FEL 55, 56, 57, 58

U CSA, General Purpose St., Alu, Alu/sep.with NPT cable entry

FEL 51, 52, 54,FEL 55, 56, 57, 58

PBTwith NPT cable entry

FEL 51, 52,FEL 55, 56, 57, 58

S CSA, IS, Cl. I, II, III, Div. 1, Gr. A-G PBT, St., Alu, Alu/sep.with NPT cable entry

FEL 55, 56, 57, 58

T CSA, XP, Cl. I, II, III, Div. 1, Gr. A-G Aluwith NPT cable entry

FEL 51, 52, 54,FEL 55, 56, 57, 58

Y Other Certificates(for non explosion hazardous areas)

PBT, St., Alu, Alu/sep. FEL 51, 52, 54,FEL 55, 56, 57, 58, 50 A

Note on polyester housing (PBT), electrical connection in piping:Do not screw cable entries firmly to the piping. Use flexible connections (e.g. armoured hose).If the piping is used for earthing then ensure that there is a continuous electrical connection.

Ordering Product structures See following pages

HWOFFON

Address

SW

1 2 3 4 5 6 7 8

FEL50A

1 2

PA– PA+

LEDsConnectingterminal

Switches

20

Design Basic weightFTL 50 Compact 0,6 kgFTL 51 With extension pipe 0,6 kg

Certificates and ApprovalsCertificate, ApplicationA Without any special certificateB ATEX II 3 G EEx nC II T6, Overspill protection to WHG (Germany)C ATEX II 3 G EEx nA II T6, Overspill protection to WHG (Germany)D Overspill protection to WHG (Germany)G ATEX II 1/2 G EEx ia IIC T6F ATEX II 1/2 G EEx ia IIC T6, Overspill protection to WHG (Germany)K ATEX II 1/2 G EEx d IIC T6L ATEX II 1/2 G EEx d IIC T6, Overspill protection to WHG (Germany)I ATEX II 1/2 G EEx de IIC T6E ATEX II 1/2 G EEx de IIC T6, Overspill protection to WHG (Germany)R FM, NI, Cl. I, Div. 2, Gr. A-DP FM, IS, Cl. I, II, III, Div. 1, Gr. A-GQ FM, XP, Cl. I, II, III, Div. 1, Gr. A-GU CSA, General purposeS CSA, IS, Cl. I, II, III, Div. 1, Gr. A-GT CSA, XP, Cl. I, II, III, Div. 1, Gr. A-GV TIIS, Ex ia IIC T3W TIIS, Ex d IIB T3Y Others

Mechanical construction Additional weightProcess Connection, MaterialGQ2 BSP ¾ (G ¾ A) threaded connection, 1.4435 / AISI 316 LGQ5 BSP ¾ (G ¾ A) threaded connection, 2.4610 (Alloy C 4)GM2 ¾ NPT threaded connection, 1.4435 / AISI 316 LGM5 ¾ NPT threaded connection, 2.4610 (Alloy C 4)GE2 BSPT ¾ (R ¾), threaded connection DIN 2999 (BSP), 1.4435 / AISI 316 LGE5 BSPT ¾ (R ¾), threaded connection, DIN 2999 (BSP), 2.4610 (Alloy C 4)GR2 BSP 1 (G 1 A) threaded connection, 1.4435 / AISI 316 L 0.2 kgGR5 BSP 1 (G 1 A) threaded connection, 2.4610 (Alloy C 4) 0.2 kgGW2 BSP 1 (G 1 A) threaded connection, 1.4435 / AISI 316 L, mounted with welded sleeve 0.2 kgGN2 1 NPT threaded connection, 1.4435 / AISI 316 L 0.2 kgGN5 1 NPT threaded connection, 2.4610 (Alloy C 4) 0.2 kgGF2 BSPT 1 (R 1) threaded connection, DIN 2999 (BSP), 1.4435 / AISI 316 L 0.2 kgGF5 BSPT 1 (R 1) threaded connection, DIN 2999 (BSP), 2.4610 (Alloy C 4) 0.2 kgB82 DN 25 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 1.4 kgBA2 DN 32 flange, PN 6, DIN 2527, flat face, 1.4435 / AISI 316 L 1.2 kgBB2 DN 32 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 2.0 kgBC2 DN 40 flange, PN 6, DIN 2527, flat face, 1.4435 / AISI 316 L 1.4 kgBD2 DN 40 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 2,4 kgBE2 DN 50 flange, PN 6, DIN 2527, flat face, 1.4435 / AISI 316 L 1.6 kgBG2 DN 50 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 3.2 kgBH2 DN 65 flange, PN 6, DIN 2527, flat face, 1.4435 / AISI 316 L 2.4 kgBK2 DN 65 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 4.3 kgBM2 DN 80 flange, PN 16, DIN 2527, flat face, 1.4435 / AISI 316 L 4.8 kgBN2 DN 80 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 5.9 kgBQ2 DN 100 flange, PN 16, DIN 2527, flat face, 1.4435 / AISI 316 L 5.6 kgBR2 DN 100 flange, PN 40, DIN 2527, flat face, 1.4435 / AISI 316 L 7.5 kgC82 DN 25 flange, PN 40, DIN 2526, raised face, 1.4435 / AISI 316 L 1.3 kgC85 DN 25 flange, PN 40, DIN 2526, raised face, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 1.3 kgCA2 DN 32 flange, PN 6, DIN 2526, raised face, 1.4435 / AISI 316 L 1.1 kgCA5 DN 32 flange, PN 6, DIN 2526, raised face, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 1.1 kgCE2 DN 50 flange, PN 6, DIN 2526, raised face, 1.4435 / AISI 316 L 1.5 kgCE5 DN 50 flange, PN 6, DIN 2526, raised face, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 1.5 kgCG2 DN 50 flange, PN 40, DIN 2526, raised face, 1.4435 / AISI 316 L 2.9 kgCG5 DN 50 flange, PN 40, DIN 2526, raised face, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 2,9 kgCN2 DN 80 flange, PN 40, DIN 2526, raised face, 1.4435 / AISI 316 L 5.2 kgCN5 DN 80 flange, PN 40, DIN 2526, raised face, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 5.2 kgCQ2 DN 100 flange, PN 16, DIN 2526, raised face, 1.4435 / AISI 316 L 5.3 kgCQ5 DN 100 flange, PN 16, DIN 2526, raised face, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 5.3 kgFG2 DN 50 flange, PN 40, DIN 2512, with tongue, 1.4435 / AISI 316 L 2.6 kgNG2 DN 50 flange, PN 40, DIN 2512, with groove, 1.4435 / AISI 316 L 2.9 kgA82 ANSI 1" flange, 150 psi, RF, AISI 316 L 1.0 kgAA2 ANSI 1¼" flange, 150 psi, RF, AISI 316 L 1.2 kgAB2 ANSI 1¼" flange, 300 psi, RF, AISI 316 L (FTL 51) 2.0 kgAC2 ANSI 1½" flange, 150 psi, RF, AISI 316 L 1.5 kgAD2 ANSI 1½" flange, 300 psi, RF, AISI 316 L (FTL 51) 2.7 kgAE2 ANSI 2" flange, 150 psi, RF, AISI 316 L 2.4 kgAE5 ANSI 2" flange, 150 psi, RF, AISI 316 L,

with 2.4610 (Alloy C 4) plating 2.4 kgAF2 ANSI 2" flange, 300 psi, RF, AISI 316 L 3.2 kgAG2 ANSI 2" flange, 600 psi, RF, AISI 316 L (FTL 51) 4.2 kgAJ2 ANSI 2½" flange, 300 psi, RF, AISI 316 L (FTL 51) 4.8 kgAL2 ANSI 3" flange, 150 psi, RF, AISI 316 L 4.9 kgAM2 ANSI 3" flange, 300 psi, RF, AISI 316 L (FTL 51) 6.8 kgAP2 ANSI 4" flange, 150 psi, RF, AISI 316 L 7.0 kgAQ2 ANSI 4" flange, 300 psi, RF, AISI 316 L (FTL 51) 11.5 kgAR2 ANSI 4" flange, 600 psi, RF, AISI 316 L (FTL 51) 17.3 kgKA2 JIS flange, RF 10 K 25, 1.4435 / AISI 316 LKC2 JIS flange, RF 10 K 40, 1.4435 / AISI 316 LKE2 JIS flange, RF 10 K 50, 1.4435 / AISI 316 L 1.7 kgKE5 JIS flange, RF 10 K 50, 1.4435 / AISI 316 L

with 2.4610 (Alloy C 4) plating 1.7 kg

Flanges with 2.4610 (Alloy C 4) plating have a smooth raised face

Continued next page

ProductStructureLiquiphant MFTL 50FTL 51

21

Additional weight

Process Connection, Material (continuation)KL2 JIS flange, RF 10 K 80, 1.4435 / AISI 316 LKP2 JIS flange, RF 10 K 100, 1.4435 / AISI 316 LTC2 1½" Triclamp, 1.4435 / AISI 316 LTE2 2" Triclamp, 1.4435 / AISI 316 L 0.1 kgYY9 Others

Length L, Spacer, FeedthroughMaterial of extension pipe and process connectionSurface roughness of the sensor <3.2 µmAA Compact (FTL 50)DB “Length L II”, 1.4435 / AISI 316 L *) (FTL 51) 0.1 kgDE “Length L II”, 2.4610 (Alloy C 4) *) (FTL 51) 0.1 kgBB ....... mm (148 mm ... 3000 mm), 1.4435 / AISI 316 L (FTL 51) 0.9 kg/mBE ....... mm (148 mm ... 3000 mm), 2.4610 (Alloy C 4) (FTL 51) 0.9 kg/mCB ....... in (6 in ... 115 in), AISI 316 L (FTL 51) 2.3 kg/100 inCE ....... in (6 in ... 115 in), 2.4610 (Alloy C 4) (FTL 51) 2.3 kg/100 in

With temperature spacer (from 2001) 0.6 kgIA Compact (FTL 50)LB “Length L II”, 1.4435 / AISI 316 L *) (FTL 51) 0.1 kgLE “Length L II”, 2.4610 (Alloy C 4) *) (FTL 51) 0.1 kgJB ....... mm (148 mm ... 3000 mm), 1.4435 / AISI 316 L (FTL 51) 0.9 kg/mJE ....... mm (148 mm ... 3000 mm), 2.4610 (Alloy C 4) (FTL 51) 0.9 kg/mKB ....... in (6 in ... 115 in), AISI 316 L (FTL 51) 2.3 kg/100 inKE ....... in (6 in ... 115 in), 2.4610 (Alloy C 4) (FTL 51) 2.3 kg/100 in

With pressure-tight bushing (from 2001) 0.7 kgQA Compact (FTL 50)TB “Length L II”, 1.4435 / AISI 316 L *) (FTL 51) 0.1 kgTE “Length L II”, 2.4610 (Alloy C 4) *) (FTL 51) 0.1 kgRB ....... mm (148 mm ... 3000 mm), 1.4435 / AISI 316 L (FTL 51) 0.9 kg/mRE ....... mm (148 mm ... 3000 mm), 2.4610 (Alloy C 4) (FTL 51) 0.9 kg/mSB ....... in (6 in ... 115 in), AISI 316 L (FTL 51) 2.3 kg/100 inSE ....... in (6 in ... 115 in), 2.4610 (Alloy C 4) (FTL 51) 2.3 kg/100 in

YY Others

*) Replacing instruments: When vertically mounting a Liquiphant MFTL 51 with length L II, the switchpoint is at the same heightas for the Liquiphant II FTL 360, FTL 365, FDL 30, FDL 35.

OutputElectronic InsertA FEL 50 A, PROFIBUS-PA1 FEL 51, two-wire AC, U~: 19 ...253 V2 FEL 52, three-wire DC, U=: 10 ... 55 V

PNP transistor output4 FEL 54, universal, U~: 19 ...253 V, U=: 19 ... 55 V

2 potential-free change-over contacts5 FEL 55, two-wire DC 11 ... 36 V,

Output 16 / 8 mA, EEx ia6 FEL 56, two-wire acc. to NAMUR (EN 50227), EEx ia7 FEL 57, PFM signal transmission on two-wire cabling, EEx ia8 FEL 58, two-wire acc. to NAMUR (EN 50227), EEx ia,

with test key9 Other electronic insert

Mechanical ConstructionHousing, Cable EntryG4 Polyester housing IP 66,

cable gland M20x1.5G5 Aluminium housing IP 66,

cable gland M20x1.5 **) 0.5 kgG7 Aluminium housing IP 66,

with separate connection compartment,cable gland M20x1.5 **) 0.9 kg

G6 Steel housing IP 66, cable gland M20x1,5 0.1 kgE4 Polyester housing Nema 4x, adapter ½ NPTE5 Aluminium housing Nema 4x, ¾ NPT 0.5 kgE7 Aluminium housing Nema 4x

with separate connection compartment, ¾ NPT 0.9 kgE6 Steel housing Nema 4x, adapter ½ NPT 0.1 kgF4 Polyester housing IP 66, adapter G ½F5 Aluminium housing IP 66, adapter G ½ 0.5 kgF7 Aluminium housing IP 66,

with separate connection compartment,adapter G ½ 0.9 kg

F6 Steel housing IP 66, adapter G ½ 0.1 kgY9 Others

Steel housing: Material 1.4404 (AISI 316 L)

**) The cable gland M20 is not supplied for the versionsEEx d, FM XP, CSA XP

Additional FittingsA Basic fittingsC 3.1.B certificate (German) for wetted parts material 1.4435;

Inspection certificate to EN 10204, according to E+H specification 52005759Y Others

Completeproduct designation

Total weight

ProductStructureLiquiphant MFTL 50FTL 51

Continued

The basic weightincludes:compact sensor,BSP 3/4 (G ¾ A)thread adapter,electronic insert,polyester housing

22

Design Basic weightFTL 50 H Compact 0.7 kgFTL 51 H With extension pipe 0.7 kg

Certificates and ApprovalsCertificate, ApplicationA Without any special certificateB ATEX II 3 G EEx nC II T6, Overspill protection to WHG (Germany)C ATEX II 3 G EEx nA II T6, Overspill protection to WHG (Germany)D Overspill protection to WHG (Germany)G ATEX II 1/2 G EEx ia IIC T6F ATEX II 1/2 G EEx ia IIC T6, overspill protection to WHG (Germany)K ATEX II 1/2 G EEx d IIC T6L ATEX II 1/2 G EEx d IIC T6, overspill protection to WHG (Germany)I ATEX II 1/2 G EEx de IIC T6E ATEX II 1/2 G EEx de IIC T6, overspill protection to WHG (Germany)R FM, NI, Cl. I, Div. 2, Gr. A-DP FM, IS, Cl. I, II, III, Div. 1, Gr. A-GQ FM, XP, Cl. I, II, III, Div. 1, Gr. A-GU CSA, General purposeS CSA, IS, Cl. I, II, III, Div. 1, Gr. A-GT CSA, XP, Cl. I, II, III, Div. 1, Gr. A-GV TIIS, Ex ia IIC T3W TIIS, Ex d IIB T3Y Other

Mechanical Construction Additional weightProcess connection , material 1.4435 / AISI 316 LGQ2 BSP ¾ (G ¾ A) thread,

Mounting with welded sleeve (FTL 50 H)GW2 BSP 1 (G 1 A) thread,

Mounting with welded sleeve 0.2 kgB82 DN 25 flange, PN 40, DIN 2527, flat face 1.4 kgBA2 DN 32 flange, PN 6, DIN 2527, flat face 1.2 kgBB2 DN 32 flange, PN 40, DIN 2527, flat face 2.0 kgBC2 DN 40 flange, PN 6, DIN 2527, flat face 1.4 kgBD2 DN 40 flange, PN 40, DIN 2527, flat face 2.4 kgBE2 DN 50 flange, PN 6, DIN 2527, flat face 1.6 kgBG2 DN 50 flange, PN 40, DIN 2527, flat face 3.2 kgBH2 DN 65 flange, PN 6, DIN 2527, flat face 2.4 kgBK2 DN 65 flange, PN 40, DIN 2527, flat face 4.3 kgBM2 DN 80 flange, PN 16, DIN 2527, flat face 4.8 kgBN2 DN 80 flange, PN 40, DIN 2527, flat face 5.9 kgBQ2 DN 100 flange, PN 16, DIN 2527, flat face 5.6 kgBR2 DN 100 flange, PN 40, DIN 2527, flat face 7.5 kgCG2 DN 50 flange, PN 40, DIN 2526, raised face 3.2 kgCN2 DN 80 flange, PN 40, DIN 2526, raised face 5.9 kgCQ2 DN 100 flange, PN 16, DIN 2526, raised face 5.6 kgA82 ANSI 1" flange, 150 psi, RF 1.0 kgAA2 ANSI 1¼" flange, 150 psi, RF 1.2 kgAC2 ANSI 1½" flange, 150 psi, RF 1.5 kgAE2 ANSI 2" flange, 150 psi, RF 2.4 kgAF2 ANSI 2" flange, 300 psi, RF 3.2 kgAJ2 ANSI 2½" flange, 300 psi, RF (FTL 51 H) 4.8 kgAL2 ANSI 3" flange, 150 psi, RF 4.9 kgAM2 ANSI 3" flange, 300 psi, RF (FTL 51 H) 6.8 kgAP2 ANSI 4" flange, 150 psi, RF 7.0 kgAQ2 ANSI 4" flange, 300 psi, RF (FTL 51 H) 11.5 kgKA2 JIS flange, RF 10 K 25, 1.4435 / AISI 316 LKC2 JIS flange, RF 10 K 40, 1.4435 / AISI 316 LKE2 JIS flange, RF 10 K 50 1.7 kgKL2 JIS flange, RF 10 K 80, 1.4435 / AISI 316 LKP2 JIS flange, RF 10 K 100, 1.4435 / AISI 316 LTC2 1½" TriclampTE2 2" Triclamp 0.1 kgMA2 DN 32 sanitary coupling to DIN 11851 0.1 kgMC2 DN 40 sanitary coupling to DIN 11851 0.2 kgME2 DN 50 sanitary coupling to DIN 11851 0.3 kgEE2 Flush-mounted for 1" welded adapter (FTL 50 H / 51 H) 0.3 kgHE2 DN 50 aseptic connection to DIN 11864, Form A 0.3 kgPE2 DRD flange 0.3 kgUE2 SMS 2" connector (DN 51) 0.2 kgWE2 Varivent® (≥ DN 65) 0.5 kgYY9 Others

Continued next page

ProductStructureLiquiphant MFTL 50 HFTL 51 H

23

Additional weight

Length L and surface roughness Ra;Spacer, FeedthroughMaterial of extension pipe 1.4435 / AISI 316 LAC Compact, Ra < 1.5 µm (FTL 50 H)AD Compact, Ra < 0.5 µm **) (FTL 50 H)DC “Length L II”, Ra < 1.5 µm *) (FTL 51 H) 0.1 kgDD “Length L II”, Ra < 0.5 µm *) **) (FTL 51 H) 0.1 kgBC ....... mm (148 mm ... 3000 mm), Ra < 1,5 µm (FTL 51 H) 0.9 kg/mBD ....... mm (148 mm ... 3000 mm), Ra < 0.5 µm **) (FTL 51 H) 0.9 kg/mCC ....... in (6 in ... 115 in), Ra < 1,5 µm (FTL 51 H) 2.3 kg/100 inCD ....... in (6 in ... 115 in), Ra < 0.5 µm **) (FTL 51 H) 2.3 kg/100 in

With temperature spacer (from 2001) 0.6 kgIC Compact, Ra < 1,5 µm *) (FTL 50)ID Compact, Ra < 0.5 µm *) **) (FTL 50)LC “Length L II”, Ra < 1.5 µm (FTL 51) 0.1 kgLD “Length L II”, Ra < 0.5 µm **) (FTL 51) 0.1 kgJC ....... mm (148 mm ... 3,000 mm), Ra < 1,5 µm (FTL 51) 0.9 kg/mJD ....... mm (148 mm ... 3,000 mm), Ra < 0.5 µm **) (FTL 51) 0.9 kg/mKC ....... in (6 in ... 115 in), Ra < 1.5 µm (FTL 51) 2.3 kg/100 inKD ....... in (6 in ... 115 in), Ra < 0.5 µm **) (FTL 51) 2.3 kg/100 in

With pressure-tight bushing (from 2001) 0.7 kgQC Compact, Ra < 1.5 µm (FTL 50)QD Compact, Ra < 0.5 µm **) (FTL 50)TC “Length L II”, Ra < 1.5 µm *) (FTL 51) 0.1 kgTD “Length L II”, Ra < 0.5 µm *) **) (FTL 51) 0.1 kgRC ....... mm (148 mm ... 3,000 mm), Ra < 1.5 µm (FTL 51) 0.9 kg/mRD ....... mm (148 mm ... 3,000 mm), Ra < 0.5 µm **) (FTL 51) 0.9 kg/mSC ....... in (6 in ... 115 in), Ra < 1.5 µm (FTL 51) 2.3 kg/100 inSD ....... in (6 in ... 115 in), Ra < 0.5 µm **) (FTL 51) 2.3 kg/100 in

YY Others

*) Replacing instruments: When vertically mounting a Liquiphant MFTL 51 H with length L II, the switchpoint is at the same heightas for the Liquiphant II FTL 360, FTL 365, FDL 30, FDL 35.

**) Not with certificates E, I, K, L.

OutputElectronic InsertA FEL 50 A, PROFIBUS-PA1 FEL 51, two-wire AC, U~: 19 ...253 V2 FEL 52, three-wire DC, U=: 10 ... 55 V

PNP transistor output4 FEL 54, universal, U~: 19 ...253 V, U=: 19 ... 55 V

2 potential-free change-over contacts5 FEL 55, two-wire DC 11 ... 36 V,

Output 16 / 8 mA, EEx ia6 FEL 56, two-wire acc. to NAMUR (EN 50227), EEx ia7 FEL 57, PFM signal transmission on two-wire cabling, EEx ia8 FEL 58, two-wire acc. to NAMUR (EN 50227), EEx ia,

with test key9 Other electronik insert

Mechanical ConstructionHousing, Cable EntryG4 Polyester housing IP 66,

cable gland M20x1.5 –0.1 kgG5 Aluminium housing IP 66,

cable gland M20x1.5 ***) 0.4 kgG7 Aluminium housing IP 66,

with separate connection compartment,cable gland M20x1.5 ***) 0.8 kg

G6 Steel housing IP 66, cable gland M20x1.5E4 Polyester housing Nema 4x, adapter ½ NPT –0,1 kgE5 Aluminium housing Nema 4x, ¾ NPT 0.4 kgE7 Aluminium housing Nema 4x

with separate connection compartment, ¾ NPT 0.8 kgE6 Steel housing Nema 4x, adapter ½ NPTF4 Polyester housing IP 66, adapter G ½ –0.1 kgF5 Aluminium housing IP 66, adapter G ½ 0.4 kgF7 Aluminium housing IP 66,

with separate connection compartment,adapter G ½ 0.8 kg

F6 Steel housing IP 66, adapter G ½Y9 Others

Steel housing: Material 1.4404 (AISI 316 L)

***) The cable gland M20 is not supplied for versionsEEx d, FM XP, CSA XP

Additional FittingsA Basic fittingsC 3.1.B certificate (German) for wetted parts material 1.4435;

Inspection certificate to EN 10204, according to E+H specification 52005759Y Other

Completeproduct designation

Total weight

ProductStructureLiquiphant MFTL 50 HFTL 51 H

Continued

The basic weightincludes:compact sensor,BSP 3/4 (G ¾ A)thread adapterelectronic insert,steel housing

24

Accessories Welded sleeve G ¾ (BSP ¾)Order number: 52001052with 3.1.B material certificate: 52011897for flush-mountinga Liquiphant FTL 50or FTL 50 Hwith process connection GQ2.• Sensor cannot be positioned.Material: Stainless steel1.4435 (AISI 316 L)Weight: 0,13 kgSeal: Silicone O-ringOrder number: 52001387

Welded sleeve G 1 (BSP 1)Order number: 52001051with 3.1.B material certificate: 52011896for flush-mountinga Liquiphant Mwith process connection GW2.• Sensor cannot be positioned.Material: Stainless steel1.4435 (AISI 316 L)Weight: 0.19 kgSeal: Silicone O-ringOrder number: 52001386

Welded sleeve G 1 (BSP 1)Order number: 52001221with 3.1.B material certificate: 52011898for flush-mountinga Liquiphant Mwith process connection GW2.• Sensor can be positioned.Material (wetted parts):Stainless steel1.4435 (AISI 316 L)Weight: 0.43 kgSeal: Silicone moulded sealOrder number: 942816-0000

Welded adapterOrder number: 52001047with 3.1.B material certificate: 52006909for flush-mountinga Liquiphant FTL 50 Hwith process connection EE2.• Sensor can be positioned.Material: Stainless steel1.4435 (AISI 316 L)Weight: 0.15 kgSeal on LiquiphantOrder number: 942816-0000

ø55

–0,4

21

26

ø32

G¾

ISO

228



ø60

–0,4

24,6

29,6

ø41 G1

ISO

228



26

5

ø6

5-0

,3



4,5

~26

RD

52x

/16

ø42

,3

ø65

25

DRD welded flangeOrder number: 52002041with 3.1.Bmaterial certificate: 52011899for flush-mountinga Liquiphant FTL 50/51 Hwith process connection PE2• Sensor can be positioned.Material: Stainless steel1.4435 (AISI 316 L)Weight: 0.9 kgSeal: PTFE flat sealOrder number: 916783-0000

Lap joint flangewith G 1 (BSP 1) thread for mountinga Liquiphant FTL 50/51with process connection GR2.Pressure up to 40 bar.Material:Stainless steel1.4301 (AISI 304)Weight: 0.54 kgOrder number: 918158-0000

Lap joint flangeswith G 1 (BSP 1) for mountinga Liquiphant FTL 50/51with process connection GR2.Material:Stainless steel1.4571 (AISI 316 Ti)– Flange DN 50, PN 40, DIN 2527,

flat faceWeight: 3.11 kgOrder number: 918143-0000

– Flange ANSI 2", 150 psi, RFWeight: 2.38 kgOrder number: 918144-0000

Sliding sleeves for unpressurised operation– G 1 A, DIN ISO 228/1

Order number: 52003978with 3.1.Bmaterial certificate: 52011888

– 1 NPT, ANSI B 1.20.1Order number: 52003979with 3.1.Bmaterial certificate: 52011889

– G 1½ A, DIN ISO 228/1Order number: 52003980with 3.1.Bmaterial certificate: 52011890

– 1½ NPT, ANSI B 1.20.1Order number: 52003981with 3.1.Bmaterial certificate: 52011891

For continuous adjustmentof the switching point of aLiquiphant M FTL 51.Material:Stainless steel1.4435 (AISI 316 L)Weight for G 1 A, 1 NPT: 0.21 kg.Weight for G 1½ A, 1½ NPT: 0.54 kg.

ø84

M10

ø10

5

ø12

5

ø66

ø50

20

15

13

16

14

G1 12

2

92 92

2219

M6 (3x)

18

G 1 A(1 NPT)

G 1½ A(1½ NPT)

19

M6 (3x)

p =0 bar

e

FTL 51

55 AF

41 AF

26

High pressure sliding sleeves– G 1 A, DIN ISO 228/1, 1.4435

Order number: 52003663.with 3.1.Bmaterial certificate: 52011880

– G 1 A, DIN ISO 228/1, Alloy C4Order number: 52003664.

– 1 NPT, ANSI B 1.20.1, 1.4435Order number: 52003667.with 3.1.Bmaterial certificate: 52011881

– 1 NPT, ANSI B 1.20.1, Alloy C4Order number: 52003668.

– G 1½ A, DIN ISO 228/1, 1.4435Order number: 52003665.with 3.1.Bmaterial certificate: 52011882

– G 1½ A, DIN ISO 228/1, Alloy C4Order number: 52003666.

– 1½ NPT, ANSI B 1.20.1, 1.4435Order number: 52003669.with 3.1.Bmaterial certificate: 52011883

– 1½ NPT, ANSI B 1.20.1, Alloy C4Order number: 52003670.

For continuous adjustmentof the switching point of aLiquiphant M FTL 51.Material:Stainless steel1.4435 (AISI 316 L) or Alloy C4.Weight for G 1 A, 1 NPT: 1,13 kg.Weight for G 1½ A, 1½ NPT: 1.32 kg.Graphite seal.

Transparent coverfor polyester housingMaterial: PA 12Weight: 0.04 kgOrder number: 943461-0001

Cover with windowfor steel housingMaterial: 1.4404 (AISI 316 L)Weight: 0.16 kg.With glass windowOrder number: 943301-1000.With PC windowOrder number: 52001403(Not for CSA, General Purpose).

G 1 A(1 NPT)

G 1½ A(1½ NPT)

FTL 51

18

ø60

2~

70

22

ø60

2~

72

50 AF

50 AF

– 1 bar … + 40 bar– 40 °C … + 150 °C

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Supplementarydocumentation

SI 040F/00/en Liquiphant M, System Information

TI 347F/00/en Liquiphant M FTL 51 Cas FTL 51, but with wetted parts coated with highlycorrosion-resistant ECTFE, PFA or enamel

TI 354F/00/en Liquiphant S FTL 70/71as FTL 50/51, but for process temperatures up to 280 °C (540 °F)

TI 203F/00/en Nivotester FTL 320, Technical InformationSwitching unit in Minipac designfor Liquiphant M with electronic insert FEL 57

TI 198F/00/en Nivotester FTL 370 / 372, Technical InformationSwitching units in Racksyst designfor Liquiphant M with electronic insert FEL 57

TI 350F/00/en Isolating amplifier FTL 325 P, Technical Information1- or 3-channel switching units for mounting on a top hat railfor Liquiphant M/S with electronic insert FEL 57

TI 353F/00/en Isolating amplifier FTL 325 N, Technical Information1- or 3-channel switching units for mounting on a top hat railfor Liquiphant M/S with electronic insert FEL 56, FEL 58

TI 360F/00/en Isolating amplifier FTL 375 P, Technical Information1- to 3-channel switching units for mounting on a top hat railfor Liquiphant M/S with electronic insert FEL 57

TI 361F/00/en Isolating amplifier FTL 375 N, Technical Information1- to 3-channel switching units for mounting on a top hat railfor Liquiphant M/S with electronic insert FEL 56, FEL 58

TI 332F/00/en Isolating amplifier FXN 421 / 422, Technical InformationSwitching units for mounting on a top hat railfor Liquiphant M with electronic insert FEL 56, FEL 58

TI 241F/00/en General information on electromagnetic compatibility

BA 141F/00/en Electronic insert FEL 50 A for Liquiphant M/SPROFIBUS-PA

XA 031F/00/a3 Safety instructions (ATEX) II 1/2 G, EEx d IIC/B(KEMA 99 ATEX 1157)

XA 063F/00/a3 Safety instructions (ATEX) II 1/2 G, EEx ia/ib IIC/B(KEMA 99 ATEX 0523)

XA 064F/00/a3 Safety instructions (ATEX) II 1 G, EEx ia IIC/B(KEMA 99 ATEX 5172 X)

XA 108F/00/a3 Safety instructions (ATEX) II 1/2 G, EEx de IIC/B(KEMA 00 ATEX 2035)

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Certificates andApprovals

General approvals For Liquiphant M FTL 50 H, FTL 51 H:EHEDG certification (from TNO, Netherlands), Report No. V99.394:

With process connections:– Sanitary coupling DN 32, 40, 50 to DIN 11851

(MA2, MC2, ME2), only in combination with anEHEDG certified gasket from Siersema

– Aseptic connection DN 50 to DIN 11864(HE2)

– Varivent DN 50 (50/40) to factory standardTuchenhagen(WE2)

Warning!To avoid risk of contamination, install according to the Hygienic EquipmentDesign Criteria (HDC) as stated in the Subgroup Design Principles of theEHEDG, Doc. 8, July 1993. The flow of liquid during cleaning is important andshould be in compliance with HDC.

3-A Certificate (USA), Authorization No. 459

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Endress+HauserGmbH+Co.Instruments InternationalP.O. Box 2222D-79574 Weil am RheinGermany

Tel. (07621) 975-02Fax (07621) 975-345http://[email protected]

TI 328F/00/en/02.02SL/CV5

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