Endress+Hauser Liquiphant M FTL51C Technical Information

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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) – for pressure up to 40 bar (580 psi) – for viscosities up to 10000 mm



/s (cSt)

– for densities of 0.5 g/cm (SGU) or 0.7 g/cm(SGU)

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 corrosionresistant 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)

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Liquiphant M FTL51C

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Table of contents

Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Point level detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Function and system design . . . . . . . . . . . . . . . . . . . . . .4

Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Modularity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electronic versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electronic version for density measurement . . . . . . . . . . . . . . . 5

Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Measuring range (detection range) . . . . . . . . . . . . . . . . . . . . . . 5

Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electronic insert FEL51 (AC 2-wire) . . . . . . . . . . . . . . .6

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Electronic insert FEL52 (DC PNP). . . . . . . . . . . . . . . . . .8

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electronic insert FEL54 (AC/DC with relay output). . .9

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Electronic insert FEL55 (8/16 mA) . . . . . . . . . . . . . . 10

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electronic insert FEL56 (NAMUR L-H edge). . . . . . . 11

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Electronic insert FEL58 (NAMUR H-L edge). . . . . . . 12

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Electronic insert FEL57 (PFM) . . . . . . . . . . . . . . . . . . 13

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Electronic insert FEL50A (PROFIBUS PA) . . . . . . . . . 15

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Electronic insert FEL50D (density). . . . . . . . . . . . . . . 17

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Light signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connection and function . . . . . . . . . . . . . . . . . . . . . . . 19

Connecting cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Safety mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Switching time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Switch-on behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Performance characteristics . . . . . . . . . . . . . . . . . . . . 19

Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . 19

Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Influence of medium temperature . . . . . . . . . . . . . . . . . . . . . . . 19

Influence of medium density . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Influence of medium pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Switching delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Examples of mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Installation height as per IEC61010-1 Ed.3 . . . . . . . . . . . . . . 23

Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Medium conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Medium temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Thermal shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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Liquiphant M FTL51C

Medium pressure pe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Test pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Pressure shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

State of aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Solids content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Lateral loading capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Mechanical construction . . . . . . . . . . . . . . . . . . . . . . . 25

Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Dimensions (in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Electronic inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Operating concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Certificates and approvals . . . . . . . . . . . . . . . . . . . . . . 30

Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

RCM-tick mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

EAC conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

CRN approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Pressure Equipment Directive 2014/68/EU (PED) . . . . . . . . . 30

Process seal according to ANSI/ISA 12.27.01 . . . . . . . . . . . . . 30

Other certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Manufacturer declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Use in hazardous zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Combinations of coatings, housings and electronic inserts . . 31

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Product structure Liquiphant M FTL51C . . . . . . . . . . . . . . . . . 33

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Transparent cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Cover with sight glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Weather protection cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Functional safety (SIL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Safety Instructions (ATEX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Safety Instructions (NEPSI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Control Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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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.

This frequency is reduced when covered with liquid. This change in frequency causes the point level switch to switch.

Modularity

Point level switch

Liquiphant M FTL with electronic versions FEL51, FEL52, FEL54

L00-FTL51Cxx-15-05-xx-xx-000

Point level switch

Liquiphant M FTL with electronic versions FEL55, FEL56, FEL57, FEL58 for connecting to a separate switching unit or an isolating amplifier FEL50A for connecting to a PROFIBUS PA segment

L00-FTL51Cxx-15-05-xx-en-000

FEL51/52/54

…

FEL55/56/57/58/50A

Ex i

…

Switching unit PLC Isolating amplifier Segment coupler

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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.

FEL54: Universal current version with relay output; Switches the loads via 2 floating change-over contacts.

FEL55: Signal transmission 16/8 mA on two-wire cabling e.g. in conjunction with programmable logic controllers (PLCs), AI modules 4 to 20 mA as per EN 61131-2.

FEL56: For separate switching unit; signal transmission L-H edge 0.6 to 1.0 / 2.2 to 2.8 mA to EN 50227 (NAMUR) on two-wire cabling.

FEL58: For separate switching unit; signal transmission H-L edge 2.2 to 3.5 / 0.6 to 1.0 mA to EN 50227 (NAMUR) on two-wire cabling. Checking of connecting cabling and other devices by pressing a key on the electronic insert.

FEL57: For separate switching unit; PFM signal transmission; Current pulses superposed on the power supply along the two-wire cabling. Cyclical checking from the switching unit without changing levels.

FEL50A: For connecting to PROFIBUS PA; Cyclic and acyclic data exchange acc. to PROFIBUS-PA Profile 3.0; Discrete Input.

Electronic version for density measurement

FEL50D: For connecting to Density Computer FML621

Galvanic isolation FEL51, FEL52, FEL50A: between sensor and power supply

FEL54: between sensor and power supply and load

FEL55, FEL56, FEL57, FEL58, FEL50D: see connected switching unit

Design FTL51C: Flange, extension pipe and tuning fork are coated.

Input

Measured variable Level (limit value)

Measuring range (detection range)

Depends on the mounting point or the length of the sensor with extension pipe. Up to 3000 mm (118 in) for synthetic coating, up to 1200 mm (47.2 in) for enamel coating

Density Adjustment on the electronic insert > 0.5 g/cm



or > 0.7 g/cm (other on request)

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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

Output signal

Signal on alarm Output signal on power failure or in the event of damaged sensor: < 3.8 mA

Connectable load • Voltage drop via FEL51

12 V

• Residual current if electrical switch is blocked:  3.8 mA

• Load switched directly into the power supply circuit via the thyristor. Transient (40 ms)

 1.5 A,  375 VA at 253 V or  36 VA at 24 V (not short-circuit-proof)

The load is switched via an electronic switch directly in the power circuit. Always connect in series with a load! Not suitable for connection to low-voltage PLC inputs!

Switches the load directly into the power supply circuit via an electronic switch.

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 terminal voltage at the electronic insert (19 V) when blocked is not undershot.

– the voltage drop across the electronics when

switched through is observed (up to 12 V)

• That a relay cannot de-energize with holding power below 3.8 mA. If this is the case, a resistor should be connected parallel to the relay. An RC module is available under the part number: 71107226

• When selecting the relay, pay attention to the holding power / rated power (see "Connectable load")

L00-FTL5xxxx-04-05-xx-en-007

U~ max. 253 V AC

50/60 Hz

NNPE

(Ground)

min. 19 V

FEL51

External load R

be connectedmust

Safety mode Level Output signal LEDs

green red

< 3.8 mA

L00-FTL2xxxx-07-05-

xx-xx-000

= load current

(switched through)

= residual current

(blocked)

= lit

= unlit

L00-FTL5xxxx-04-05-xx-xx-001

MAX

MIN

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Selection guide for relays

TI00328F_001

Minimum nominal power of load P/S nominal power in [W] / [VA] U operating voltage in [V]

Relays with less nominal power can be operated via an RC module connected in parallel (optional).

2.7

2.5

2.3

2.1

1.9

1.7

1.5

1.3

1.1

0.9

0.7

0.5 20 24 27 43 48 53 60 110 121 207 230 253

P/S

Position Operating voltage Nominal power

min. max.

P1 AC operation

24 V 110 V 230 V

> 1.3 VA > 1.5 VA > 2.5 VA

< 8.4 VA < 38.5 VA < 80.5 VA

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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

Electrical connection Three-wire DC connection

Output signal

Signal on alarm Output signal on power failure or in the event of damaged sensor: < 100 μA

Connectable load • Load switched via the transistor and separate PNP connection,

 DC 55 V

•Load current

 350 mA (pulsed overload and short-circuit protection)

• Residual current < 100 μA (with transistor blocked)

• Capacitance load  0.5 μF at 55 V,  1.0 μF at 24 V

• Residual voltage < 3 V (with transistor switched through);

Switches the load via the transistor (PNP) and separate connection. Preferably used with programmable logic controllers (PLC), DI modules as per EN 61131-2. Positive signal at switching output of the electronics (PNP); Output blocked on reaching point level.

L00-FTL5xxxx-04-05-xx-xx-030

1 2 3

(+)

FEL52

L+

L–

–

0.5 A

U– 10…55 V DC

...

Relais, PLC, ...

(Ground)

Safety mode Level Output signal LEDs

green red

< 100 μA

L00-FTL2xxxx-07-05-

xx-xx-000

= load current

(switched through)

= residual current

(blocked)

= lit

= unlit

L00-FTL5xxxx-04-05-xx-xx-004

MAX

MIN

L+ +

1 3

L+ +

1 3

< 100 μA

Page 9

Liquiphant M FTL51C

Endress+Hauser 9

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

Electrical connection Universal current connection with relay output

Output signal

Signal on alarm Output signal on power failure or in the event of damaged sensor: relay de-energized

Connectable load • Loads switched via 2 floating change-over contacts (DPDT)

•I~

 6 A (Ex de 4 A), U~  AC 253 V; P~  1500 VA, cos  = 1, P~  750 VA, cos  > 0.7

•I%

 6 A (Ex de 4 A) to DC 30 V , I%  0.2 A to 125 V

• When connecting a low-voltage circuit with double insulation according to IEC 1010, the following applies: the sum of the voltages of the relay output and power supply is  300 V

• The electronic insert FEL52 DC-PNP is preferred for low DC load currents (e.g. when connecting to a PLC)

• Relay contact material: silver/nickel AgNi 90/10

Power supply: Please note the different voltage ranges for AC and DC.

Output: When connecting an instrument with high inductance, provide a spark arrester to protect the relay contact. A fine-wire fuse (depending on the load connected) protects the relay on short-circuiting. Both relay contacts switch simultaneously.

* When jumpered, the relay output works with NPN logic.

** See "Connectable load"

L00-FTL5xxxx-04-05-xx-xx-002

L1 L+

L–

0.5 A

(Ground)

** **

12 678345

FEL54

U~ 19…253 V AC, 50/60 Hz U– 19… 55 V DC

...

Safety mode Level Output signal LEDs

green red

L00-FTL2xxxx-07-05-

xx-xx-001

= relay energized

= relay de-energized

= lit

= unlit

L00-FTL5xxxx-04-05-xx-xx-005

MAX

MIN

354

687

354

687

Page 10

Liquiphant M FTL51C

10 Endress+Hauser

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

Output signal

Signal on alarm Output signal on power failure or in the event of damaged sensor: < 3.6 mA

Connectable load • R = (U - 11 V) : 16.8 mA

• U = connection voltage: DC 11 to 36 V (in wet environments DC 11 to 35 V)

Example: PLC with 250  with 2-wire version

250  = (U – 11V) / 16.8 mA

4.2 [/] = U – 11 V U = 15.2 V

For separate switching unit. Signal transmission 16/8 mA on two-wire cabling. For connection to programmable logic controllers (PLC) for example, AI modules 4 to 20 mA to EN 61131-2. Output signal jump from high to low current on point level.

Fuse required for non-Ex applications! Only use power units with safe galvanic isolation (e.g. SELV).

L00-FTL5xxxx-04-05-xx-en-000

1 2

FEL55

–

Ex ia

U 11...36 V DC

–

R =

max

U–11 V

16.8 mA

PLC/SPS, AI-Modules, ...

F=T50mA

Safety mode Level Output signal LEDs

green red

~ 16 mA

~ 8 mA

L00-FTL2xxxx-07-05-

xx-xx-000

= 16 mA ± 5 %

= 8 mA ± 6 %

= lit

= unlit

L00-FTL5xxxx-04-05-xx-xx-006

MMAX

MIN

+ 2 1

~16 mA

~8 mA

~16 mA

Page 11

Liquiphant M FTL51C

Endress+Hauser 11

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

Electrical connection Two-wire connection for separate switching unit

Output signal

Signal on alarm Output signal in the event of damaged sensor: > 2.2 mA

Connectable load • See Technical Data of the isolating amplifier connected according to IEC 60947–5–6 (NAMUR)

For connecting to isolating amplifiers according to NAMUR (IEC 60947-5-6), e.g. FTL325N from Endress+Hauser. Output signal jump from low to high current on point level.

(L–H edge)

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

L00-FTL5xxxx-04-05-xx-en-004

FEL56

–

EEx ia

Isolating amplifier to (NAMUR)

IEC 60947-5-6

Safety mode Level Output signal LEDs

green red

L00-FTL5xxxx-07-05-

xx-xx-002

= lit

= flashes

= unlit

L00-FTL5xxxx-04-05-xx-xx-003

MAX

MIN

+ 2 1

0.6 …

1.0 mA

0.6 …

1.0 mA

2.2 …

2.8 mA

2.2 …

2.8 mA

Page 12

Liquiphant M FTL51C

12 Endress+Hauser

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

Electrical connection Two-wire connection for separate switching unit

Output signal

Signal on alarm Output signal in the event of damaged sensor: < 1.0 mA

Connectable load • See Technical Data of the isolating amplifier connected according to IEC 60947–5–6 (NAMUR)

• Connection also to isolating amplifiers which have special safety circuits (I > 3.0 mA)

For connecting to isolating amplifiers as per NAMUR (IEC 60947-5-6), e.g. FTL325N, FTL375N from Endress+Hauser. Output signal jump from high to low current on point level.

(H–L edge)

Additional function: Test key on the electronic insert. Pressing the key breaks the connection to the isolating amplifier.

Note! In Ex–d applications, the additional function can only be used if the housing is not exposed to an explosive atmosphere.

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

L00-FTL5xxxx-04-05-xx-en-002

FEL58

–

EEx ia

Isolating amplifier to (NAMUR)

IEC 60947-5-6

Safety mode Level Output signal LEDs

green

yellow

L00-FTL5xxxx-07-05-

xx-xx-002

= lit

= flashes

= unlit

L00-FTL5xxxx-04-05-xx-xx-007

MAX

MIN

+ 2 1

2.2 …

3.5 mA

2.2 …

3.5 mA

0.6 …

1.0 mA

0.6 …

1.0 mA

Page 13

Liquiphant M FTL51C

Endress+Hauser 13

Electronic insert FEL57 (PFM)

Power supply Supply voltage: DC 9.5 to 12.5 V

Current consumption: 10 to 13 mA Power consumption: < 150 mW Reverse polarity protection

Electrical connection Two-wire connection for separate switching unit

The check is activated and monitored at the switching unit.

The twin-core connecting cable (instrument cable) with a cable resistance of  25  per core is connected to the screw terminals (conductor cross-sections 0.5 to 2.5 mm / 0.02 to 0.1 in) in the connection compartment. Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed. Maximum cable length up to 1000 m (3281 ft).

A shielded connecting cable is recommended in the event of strong electromagnetic interference. Here the shielding must be connected to the sensor and the power supply.

For connecting to Endress+Hauser switching units 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. Switching between minimum/maximum safety in the Nivotester.

Additional function “cyclical checking”: After interruption of the power supply, a test cycle is activated which checks the sensor and electronics without any change in level. Approved for overfill protection acc. to WHG (German Water Resources Act). The following can be switched at the electronic insert:

– Standard

(STD): simulation approx. 8 s tuning fork exposed – covered – exposed. For proof testing, the Nivotester tests the sensor's level notification function.

– Extended (EXT):

Simulation approx. 41 s: tuning fork exposed – covered – alarm – exposed. For proof testing, the Nivotester tests the sensor's level notification function and fault notification (alarm) function.

L00-FTL5xxxx-04-05-xx-en-003

– +

33 34

37 38

d4 d2

z6d6

z4 z2

PFM 50 / 150 Hz

FEL57

EEx ia

Nivotester FTL320 FTL325P 1CH FTL325P 3CH

FTL370/372 FTL375P 1CH Input 1

FTL372 FTL375P 2CH Input 2

FTL375P 3CH Input 3

Page 14

Liquiphant M FTL51C

14 Endress+Hauser

Switching behavior of the connected device:

Please note this switching response and function of the plant especially when replacing a Liquiphant incorporating electronic insert EL17Z or FEL37 with a Liquiphant M incorporating electronic insert FEL57.

Output signal

Signal on alarm Output signal on power failure or in the event of damaged sensor: 0 Hz

Connectable load • Floating relay contacts in the connected switching unit Nivotester FTL325P, FTL375P

• For contact load, see the Technical Data of the switching unit.

L00-FTL5xxxx-05-05-xx-en-000

* De-energized on power supply failure

Fail-safe mode set at switching unit

MAX

MIN

Setting at FEL57

STD

EXT

STD

EXT

STD

EXT

STD

EXT

Fork

free

covered

free

covered

Switching status of relay in switching unit on = energised off = de-energised

Te st start End of t

est start

(power off) (power on)

> 3 s

off

~ 3 s on

~ 5 s off

off

~ 5 s off

~ 7 s off

~ 5 s off

~ 2 s on

~ 3 s on

~ 35 s on

~ 3 s off

~ 2 s off

~ 35 s off

off

~ 30 s on

off



Safety mode Level Output signal

(PFM)

LEDs green yellow

L00-FTL2xxxx-07-05-

xx-xx-000

= lit

= unlit

L00-FTL5xxxx-04-05-xx-xx-008

150 Hz

50 Hz

Page 15

Liquiphant M FTL51C

Endress+Hauser 15

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)

Electrical connection Two-wire connection for power supply and data transfer

L00-FTL5xxxx-04-05-xx-xx-100

For connecting to PROFIBUS PA

Additional functions:

– Digital communication enables the

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

change – Matrix locking possible – Switch to WHG mode possible

(WHG approval) – For a detailed description, see BA00198F

L00-FTL5xxxx-04-05-xx-en-005

PA– PA+

PROFIBUS PA

–

U– 9…32 V DC

...

FEL50A

Segment coupler

PLC

PROFIBUS DP

PROFIBUS PA

Proﬁcard Proﬁboard/

Segment plercou

Page 16

Liquiphant M FTL51C

16 Endress+Hauser

Output signal

Signal on alarm • Failure information can be opened using the following interfaces:

Yellow LED flashing, status code, diagnostic code; see BA00198F

Setting Level LEDs

green yellow

FEL50A

L00-FTL2xxxx-07-05-

xx-xx-000

not inverted

L00-FTL5xxxx-04-05-xx-xx-009

OUT_D = 0 PA bus signal

OUT_D = 1 PA bus signal

= lit inverted

OUT_D = 0 PA bus signal

= unlit

OUT_D = 1 PA bus signal

Page 17

Liquiphant M FTL51C

Endress+Hauser 17

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

Signal on alarm Output signal on power failure or in the event of damaged sensor: 0 Hz

Adjustment In the Liquiphant M modular system, the option of an adjustment is also provided in addition to the

electronics (see feature 60: "Accessories").

There are three types of adjustment:

Standard adjustment (see ordering information for additional options, basic version A)

• Here, two fork parameters are determined to describe the sensor characteristics,

indicated in the adjustment report and provided with the product.

These parameters must be transmitted to the Density Computer FML621.

Special adjustment (see ordering information for additional options, special adjustment, density H

(K) or special adjustment, density H

O with 3.1 certificate (L))

• Here, three fork parameters are determined to describe the sensor characteristics, indicated in the

adjustment report and provided with the product.

These parameters must be transmitted to the Density Computer FML621.

Greater accuracy is achieved with this type of adjustment (see also "Performance characteristics").

Field adjustment

• During field adjustment, a density value actually determined by the customer is entered and the

system is automatically adjusted to this value (wet adjustment).

Note! More information on Liquiphant M Density is available in Technical Information TI00420F. This document is available for download at www.endress.com => Download.

Two-wire connection at Density Computer FML621

For connecting to the density and concentration computer FML621.

The output signal is based on pulse technology. With the aid of this signal, the fork frequency is constantly forwarded to the switching unit.

Caution! Operation with other switching units, such as FTL325P, is not permitted.

This electronic insert cannot be installed in devices that were originally used as a point level switch.

TI420Fen004

– +

10 82

112 182

FEL50D

EEx ia

FML621

Endress+Hauser

FML621

–

Impuls

Page 18

Liquiphant M FTL51C

18 Endress+Hauser

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.

TI420Fxx016

* Pressure and temperature information required depending on the application.

1. Liquiphant M sensor with electronic insert FEL50D (pulse output);

2. Temperature sensor (e.g. 4 to 20 mA output);

3. Pressure transmitter (4 to 20 mA output);

4. Liquiphant density and concentration computer FML621 with display and operating unit

Light signals

Endress+Hauser

RMM621

Endress+Hauser

RMM621

1. 2. 3. 4.

PLC/SPS

FML621

LED Symbol Information

Yellow Measurement valid

Unstable process situation

Maintenance required

Green Power on

Power off

Red No fault

Maintenance required

Device failure

Page 19

Liquiphant M FTL51C

Endress+Hauser 19

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  4 mm(12 AWG)

Safety mode Minimum/maximum residual current safety selectable on electronic insert

(with FEL57 on Nivotester only)

MAX = maximum safety: The output switches to the power fail response when the fork is covered For use with overfill protection for example

MIN = minimum safety: The output switches to the power fail response when the fork is exposed For use with dry running protection for example

Switching time When fork is covered: approx. 0.5 s

When fork is exposed: approx. 1.0 s Additionally configurable for PROFIBUS PA: 0.5 to 60 s

Other switching times available on request.

Switch-on behavior When switching on the power supply, the output assumes the alarm signal.

After

 3 s it assumes the correct switching mode (exception: FEL57)

Performance characteristics

Reference operating conditions

Maximum measured error Under reference operating conditions: max. +/–1 mm (0.04 in)

Repeatability 0.1 mm (0.004 in)

Hysteresis ECTFE and PFA: approx. 2 mm (0.08 in)

Enamel: approx. 2.5 mm (0.1 in)

Influence of medium temperature

ECTFE and PFA: max. +1.4 mm to –2.8 mm (–50 to +120 °C / -58 to 248 °F) Enamel: max. +0.6 mm to –1.5 mm (–50 to +150 °C / -58 to 302 °F)

Influence of medium density max. +4.8 mm to –3.5 mm ((0.5 to 1.5 g/cm



(SGU))

max. +0.19 in to -0.14 in

Influence of medium pressure ECTFE and PFA:

max. 0 mm to –2.0 mm (0 bar to 40 bar) max. 0 in to -0.08 in (0 psi to 580 psi) Enamel: max. 0 mm to –1.0 mm (0 bar to 25 bar) max. 0 in to -0.04 in (0 psi to 363 psi)

Switching delay • When fork is covered: 0.5 s

Ambient temperature: 23 °C (73 °F)

Medium temperature: 23 °C (73 °F)

Medium density (water): 1 g/cm



(SGU)

Medium viscosity: 1 mm/s (cSt)

Medium pressure p

: 0 bar (0 psi)

Sensor mounting: vertical from above

Density switch: to > 0.7 g/cm³ (SGU)

L00-FTL5xxxx-06-05-xx-xx-031

* Switch point under reference operating conditions

(0,51)

mm (in)

Page 20

Liquiphant M FTL51C

20 Endress+Hauser

• 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

Note!

• The switch points of the LiquiphantM are at other positions to those of the previous version LiquiphantII.

• Minimum distance between the tip of the fork and the tank wall or pipe wall: 10 mm

Synthetic coating:

L00-FTL5xxxx-06-05-xx-xx-051

Mounting from above Mounting from below Mounting from the side

Enamel coating:

L00-FTL5xxxx-06-05-xx-xx-051

Mounting from above Mounting from below Mounting from the side

Examples of mounting Examples of mounting with regard to the viscosity  of the liquid and the tendency to form buildup

Optimum mounting, without problem even with high viscosity:

L00-FTL51Cxx-11-05-xx-xx-002

Vertical from above Flush-mounted from the side

Switch points on the sensor depend on the mounting position, with reference to water,

Density 1 g/cm



(SGU), 23 °C (73 °F), pe 0 bar (0 psi).

(0.51)

(0.16)

( 0.16)

mm (in)

(0. )39

(. )1 57

(0.51)

( 0.16)

mm (in)

(0. )39

46.5

(. )1 83

(0. 1)3

Page 21

Liquiphant M FTL51C

Endress+Hauser 21

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.

L00-FTL51Cxx-11-05-xx-xx-003

Vertical from above Protruding into the tank from the side

Mounting positions with low viscosity (up to 2000 mm/s):

L00-FTL51Cxx-11-05-xx-xx-004

* Deburr the nozzle surfaces

Mounting in piping from 2"

Flow velocities up to 5 m/s at a viscosity of 1 mm



/s (16.4 ft/s) and density of 1 g/cm. (Check function

for other medium conditions.)

L00-FTL51Cxx-11-05-xx-xx-005

(min. 1 in)

min. 25

DN 40

Page 22

Liquiphant M FTL51C

22 Endress+Hauser

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.

L00-FTL51Cxx-11-05-xx-xx-006

Orientation FTL51C with short pipe up to approx. 500 (19.7 mm): any position

FTL51C with long pipe, vertical

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

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

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

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

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

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

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

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

Page 23

Liquiphant M FTL51C

Endress+Hauser 23

Environment

Ambient temperature range Permitted ambient temperature Ta at the housing depending on the medium temperature Tp in the

tank:

Storage temperature –50 to +80 °C (-58 to 176 °F)

Installation height as per IEC61010-1 Ed.3

Up to 2000 m (6600 ft) above sea level.

Can be extended up to 3000 m (9800 ft) above sea level if overvoltage protection is used, for example HAW562 or HAW569.

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

Degree of protection

* As per EN60529 ** As per NEMA 250 *** only with M20 cable entry or G1/2 thread **** F13 housing only in conjunction with XP or Ex d approval

Vibration resistance As per IEC 68, parts 2-6 (10 to 55 Hz, 0.15 mm (0.01 in), 100 cycles)

Electromagnetic compatibility

Interference emission to EN 61326, Electrical Equipment Class B Interference immunity to EN 61326; Annex A (Industrial) and NAMUR Recommendation NE 21 (EMC)

L00-FTL5xxxx-05-05-xx-xx-001

** ***

Additional temperature range for devices with a temperature spacer or pressure tight feedthrough. Maximum ambient temperature with FEL50D/FEL50A in hazardous areas. For F16 housing, the following applies: -40 °C Ta +70 °C (-40 °F Ta +158 °F)

(158)

(122)

(32)

100

(212)

150

(302)

(194)

-50

(-58)

-50

(-58)

(32)

(122)

°C (°F)

***

-40

(-40)

Types of housing IP65 IP66* IP67* IP68* IP69 NEMA

type**

Polyester housing F16 – X X – – 4X Stainless steel housing F15 – X X – – 4X Aluminum housing F17 – X X – – 4X Aluminum housing F13**** – X – X*** – 4X/6P Stainless steel housing F27 – X – X – 4X/6P Aluminum housing T13

with separate connection compartment (Ex d)

–X– X***–4X/6P

Page 24

Liquiphant M FTL51C

24 Endress+Hauser

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)

Medium pressure p

The following values apply over the entire temperature range. Pay attention to exceptions for flange process connections!

• ECTFE and PFA: –1 to +40 bar (–14.5 to 580 psi)

• Enamel: max. –1 to +25 bar (–14.5 to 363 psi)

Please refer to the standards listed for the permitted pressure values of the flanges at higher temperatures:

• pR EN 1092-1: 2005 With regard to their stability-temperature property, the materials 1.4435 and 1.4404 are identical and are grouped together under 13E0 in EN 1092-1 Tab. 18. The chemical composition of the two materials can be identical.

• ASME B 16.5a - 1998 Tab. 2-2.2 F316

• ASME B 16.5a - 1998 Tab. 2.3.8 N10276

• JIS B 2220

The lowest value from the derating curves of the device and selected flange applies in each case. Canadian CRN approval: Additional details on maximum pressure values are available in the download area of the product page at "www.endress.com".

Test pressure p

= 100 bar (1450 psi):

•

 150 bar (2175 psi) or 1.5 times the medium pressure p

)

• Sensor burst pressure at 200 bar (2900 psi)

Note! Device function is not available during pressure testing.

Pressure shock  20 bar/s ( 290 psi)

State of aggregation Liquid

Density 0.7 g/cm

(SGU) = delivery status

0.5 g/cm3 (SGU) can be adjusted via switches

Viscosity  10,000 mm2/s (cSt)

Solids content

 ø5 mm (0.2 in)

Lateral loading capacity  75 Nm

Page 25

Liquiphant M FTL51C

Endress+Hauser 25

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

Plug-in electronic inserts to mount in the housing

L00-FTL5xxxx-03-05-xx-xx-001 L00-FTL5xxxx-03-05-xx-xx-002 L00-FTL5xxxx-03-05-xx-xx-003 L00-FTL5xxxx-03-05-xx-xx-004

F16

Polyester (PBT)

F15

Stainless steel (316L)

F17/F13

Aluminum (also for EEx d), coated F27 Stainless steel (316L)

T13

Aluminum with separate connection compartment (also EEx de and EEx d), coated

L00-FTL5xxxx-03-05-xx-xx-000

FEL51: FEL52: FEL54: FEL55: FEL56: FEL58: FEL57: FEL50A: FEL50D:

Two-wire AC connection Three-wire DC connection PNP Universal current connection, 2 relay outputs Output 16/8 mA for separate switching unit Output 0.6 to 1.0 / 2.2 to 2.8 mA for separate switching unit (NAMUR) Output 2.2 to 3.5 / 0.6 to 1.0 mA for separate switching unit (NAMUR) Output 150/50 Hz, PFM, for separate switching unit (Nivotester) Digital communication PROFIBUS PA Pulse output for Density Computer FML621

Bushings

Temperature spacer and pressure tight feed-through

L00-FTL5xxxx-03-05-xx-xx-005

Process connections

Flanges* according to DIN/EN, ANSI, JIS from DN 40 / 1½" * The following applies for DN 25/ANSI 1":

Pipe diameter (D)

 24.2 mm, radius (R)  4 mm.

Take into account for counterflange!

L00-FTL5xxxx-03-05-xx-xx-009

Sensors

With extension pipe up to 3 m or special "length L II" (see also Page 24)

Length L Length L II

L00-FTL51Cxx-03-05-xx-xx-001

R *

Page 26

Liquiphant M FTL51C

26 Endress+Hauser

Dimensions (in mm) Housing and sensor FTL51C

Polyester housing F16

L00-FTL51Cxx-06-05-xx-xx-025

Stainless steel housing F15

L00-FTL51Cxx-06-05-xx-xx-126

Aluminum housing F17/F13 Stainless steel housing (316L) F27

L00-FTL5xxxx-06-05-xx-xx-006

Aluminum housing T13 with separate connection compartment

L00-FTL5xxxx-06-05-xx-xx-007

* This length is customer-specific.

115 *

ø85

(3.35)

£76

(2.99)

£20.6

(0. )£ 81

£155

(6.1)

(£

4.53*)

~25 ECTFE, PFA

(0.98)

~29 Email/e

namel

(1.14)

ø76

(ø2.99)

£64

(2.52)

£150

(5.91)

115 *

(£

4.53*)

ø80

(3.15)

£69

(2.72)

£173

(6.81)

£60

(2.36)

(0.39)

ø21.5

(ø0.85)

£65

(2.56)

£97

(3.82)

£ 190

( 7.48)£

ø21.5

(ø0.85)

Page 27

Liquiphant M FTL51C

Endress+Hauser 27

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

Process connections

Any length L: 148 mm to 3000 mm (6 in to 115 in) for synthetic coating 148 mm to 1200 mm (6 in to 48 in) for enamel coating

Note! The switch points of the Liquiphant M are at other positions to those of the previous version Liquiphant II.

Special length "L II": 115 mm (4.5 in) If vertically mounted from above, the same switch point as for the Liquiphant II FTL360, FTL365, FDL30, FDL35

Weights See Ordering information  ä 33.

Temperature spacer

Provides sealed insulation for the vessel and normal ambient temperatures for the housing.

L00-FTL5xxxx-06-05-xx-xx-091

Pressure tight feed-through

Protects the housing from vessel pressures up to 40 bar (580 psi) if the sensor is damaged. Provides sealed insulation for the vessel and normal ambient temperatures for the housing.

Process connection Dimensions Accessories Pressure

Temperature

Flanges:

Synthetic coating

ANSI B16.5 (RF) EN 1092-1 (Form A) JIS B 2220 (RF)

Enamel coating

ANSI B16.5 (RF) EN 1092-1 (Form B) JIS B 2220 (RF)

A# # B# # C## K# #

L00-FTL51Cxx-06-05-xx-xx-024

For synthetic coating: seal made of PTFE supplied

In event of enamel coating: Se al p rov ide d by the customer

See nominal pressure of flange, however

For ECTFE:

For PFA (Edlon*):

For enamel:



40 bar



120 °C



40 bar



150 °C



25 bar



150 °C

*) FDA-compliant material in accordance with 21 CFR Part 177.1550/2600

Sensor length L for FTL51C

L00-FTL5xxxx-06-05-xx-xx-018

+ 140 (5.51)

Isolation

≥115

(≥4.53)

mm (in)

ø24,8

mm (in)

(0.98)

Page 28

Liquiphant M FTL51C

28 Endress+Hauser

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

•Flanges, coated:

Parts with no process contact

• Tuning fork/housing seal: EPDM

• Temperature spacer: 316 L (1.4435)

• Pressure-tight feedthrough: 316L (1.4435)

• Ground terminal on housing (external): 316L (1.4404)

• Cable glands – Housing F13, F15, F16, F17: polyamide (PA)

In the case of approval B or C ( ä 33 Ordering information): nickel-plated brass – Housing F27: polyamide PA, with approval "B" or "C" 316L (1.4435) – Housing T13: nickel-plated brass

• Polyester housing F16: PBT-FR with PBT-FR cover or with PA12 transparent cover – Cover seal: EPDM – Nameplate glued: polyester film (PET) – Pressure compensation filter: PBT-GF20

• Stainless steel housing F15: 316L (1.4404) – Cover seal: silicone – Safety claw: 304 (1.4301) – Pressure compensation filter: PBT-GF20, PA

• Aluminum housing F17/F13: EN-AC-AlSi10Mg, plastic-coated – Nameplate: aluminum, anodized – Cover seal: EPDM – Safety claw: nickel-plated brass – Pressure compensation filter: silicone

• Stainless steel housing F27: 316L – Nameplate: 316L (1.4404) – Cover seal: FVMQ (optional: EPDM seal available as spare part) – Safety claw: 316L (1.4435)

• Aluminum housing T13: EN-AC-AlSi10Mg, plastic-coated, – Nameplate: aluminum, anodized – Cover seal: EPDM – Safety claw: nickel-plated brass

Process connections • Flanges made of 316L (1.4404) - synthetic coating; flanges made of 1.0487 (ASTMA 529) - enamel

coating

• Flanges as per EN/DIN 1092-1 from DN 25, as per ASME B16.5 from 1", as per JIS B 2220 (RF) from 10K50

Layer thickness ECTFE PFA*

(Edlon

)

PFA (RubyRed)

PFA (conductive)

Enamel

Lower limit 0.5 mm 0.45 mm 0.45 mm 0.45 mm 0.4 mm

Upper limit 1.6 mm 1.6 mm 1.6 mm 1.6 mm 0.8 mm

Substrate 316L (1.4404) 316L (1.4404) 316L (1.4404) 316L (1.4404) 1.0487

* FDA-compliant in accordance with 21 CFR Part 177.1550

Page 29

Liquiphant M FTL51C

Endress+Hauser 29

Human interface

Electronic inserts

Operating concept Onsite configuration

With FEL51, FEL52, FEL54, FEL55:

• 2 switches for safety mode and density change

• green LED to indicate operational status

• red LED to indicate the switching status, flashes in the event of corrosion damage on sensor or if the electronics are defective

With FEL56:

• 2 switches for safety mode and density change

• green LED flashes to indicate operational status

• red LED to indicate the switching status, flashes in the event of corrosion damage on sensor or if the electronics are defective

With FEL57:

• 2 switches for density change and Testing

• green LED to indicate operational status

• yellow LED to indicate the covered status, flashes in the event of corrosion damage on sensor or if the electronics are defective

With FEL58:

• 2 switches for safety mode and density change

•green LED – flashes quickly to indicate operational status, – flashes slowly in the event of corrosion damage to the

sensor of if the electronics are defective

• yellow LED to indicate the switching status, Test key – breaks the cable connection

L00-FTL5xxxx-03-05-xx-en-001

L00-FTL5xxxx-03-05-xx-xx-013

With FEL50A:

• 8 switches for configuring the device address

• green LED to indicate operational status, pulsing to indicate communication;

• yellow LED to indicate the switching status, flashes in the event of corrosion damage on sensor or if the electronics are defective

L00-FTL5xxxx-03-05-xx-en-002

With FEL50D:

• yellow LED: to indicate the validation of the measurement

• green LED: to indicate the operational status

• red LED: to indicate faults

TI328Fxx004

Min

Max1

>0,7

>0,5

FEL51

L1 N

19...253V AC 50/60Hz

I max : 350mA

Connecting terminal LEDs Switches

OFF

Address

12345678

FEL50A

PA– PA+

Connecting terminal LEDs Switches

–

Impuls

FEL50D

GNYERD

Page 30

Liquiphant M FTL51C

30 Endress+Hauser

Certificates and approvals

Certificates See Ordering information  ä 33.

CE mark The measuring system meets the legal requirements of the applicable EC Directives. These are listed in

the corresponding EC Declaration of Conformity along with the standards applied. Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.

RoHS The measuring system complies with the substance restrictions of the EU Directive on the restriction

of the use of certain hazardous substances 2011/65/EU (RoHS 2).

RCM-tick mark The product or measuring system supplied complies with the regulations of the Australian

Communications and Media Authority (ACMA) for network integrity, performance characteristics and health and safety requirements. The specifications for electromagnetic compatibility, in particular, are observed. The products bear the RCM-tick mark on their nameplate.

A0029561

EAC conformity The measuring system meets the legal requirements of the applicable EAC Directives. These

are listed in the corresponding EAC Declaration of Conformity along with the standards applied. Endress+Hauser confirms successful testing of the device by affixing to it the EAC mark.

CRN approval Versions with a CRN approval (Canadian Registration Number) are marked with a "*" in ordering

information feature 20 "process connection" (s. Seite 33 ff.). CRN-approved devices are assigned the registration number CRN: 0F10904.5CADD1 on the nameplate. Further details are available in the Downloads area on www.endress.com.

Pressure Equipment Directive 2014/68/EU (PED)

Pressure instruments with permitted pressure ≤ 200 bar (2 900 psi)

Pressure instruments with permitted pressure ≤ 200 bar (2 900 psi) Pressure instruments with a flange and threaded boss that do not have a pressure-bearing housing do not fall within the scope of the Pressure Equipment Directive, irrespective of the maximum permitted pressure.

Reason:

According to Article 2, point 5 of EU Directive 2014/68/EU, pressure accessories are defined as "devices with an operational function and having pressure-bearing housings". If a pressure instrument does not have a pressure-bearing housing (no identifiable pressure chamber of its own), there is no pressure accessory present within the meaning of the Directive.

Process seal according to ANSI/ISA 12.27.01

Practice in North America for the installation of process seals Endress+Hauser devices are designed as either single seal or dual seal devices with an alarm in 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 (CEC). These devices comply with installation practice in North America and enable very safe, low-cost installation in pressurized applications with hazardous media. Further information on the specific device can be found in the following section: Safety Instructions (ATEX)  ä 38 ff.

Other certificates • Material certificate as per EN 10204/3.1 for all wetted parts NACE MR0175/MR0103, AD2000

• Leak detection system in conjunction with WHG approval Approval number: Z–65.40–446 (see also "Ordering information" s. Seite 33 ff.)

Product Type Max. process pressure Marking Listing

Liquiphant M FTL51-S/T##...

FTL51-P/Q/R##...

64/100 bar (928/1450 psi)

Single Seal CSA

Page 31

Liquiphant M FTL51C

Endress+Hauser 31

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:

•FDA conformity

The applicable European guidelines and standards can be found in the relevant EU Declarations of Conformity.

Use in hazardous zones Pay particular attention to the information provided in the documentation: Safety Instructions, Control

Drawings etc.  ä 38

Combinations of coatings, housings and electronic inserts

Based on the various certificates, permissible combinations of coatings, housings * and electronic inserts are given in the following table. *) Abbreviations: Polyester = PBT, steel 1.4301/1.4435 = St., aluminum = Alu

Aluminum housing with separate connection compartment = Alu/sep.

Coating: ECTFE, PFA, enamel

Certificate, applications

Housing Electronic inserts

A Without any special certificate

(for non-hazardous area)

PBT, St., Alu, Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/50D

D Overfill protection to WHG (Germany) PBT, St., Alu, Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A

RFM, NI,

Cl. I, Div. 2, Gr. A–D

St., Alu, Alu/sep. with NPT cable entry

FEL51/52/54, FEL55/56/57/58/50D

PBT with NPT cable entry

FEL51/52, FEL55/56/57/58/50D

U CSA, General Purpose St., Alu, Alu/sep.

with NPT cable entry

FEL51/52/54, FEL55/56/57/58/50D***

PBT with NPT cable entry

FEL51/52, FEL55/56/57/58/50D***

Y Other certificate

(for non-hazardous area)

PBT, St., Alu, Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/50D

Coating: enamel or PFA (conductive)

Certificate, applications

Housing Electronic inserts

B ATEX II 3G EEx nC IIC T6, WHG PBT, St., Alu, Alu/sep. FEL54

ATEX II 3G EEx nC IIC T6, WHG ATEX II 3D T85°C, WHG

St., Alu, Alu/sep. FEL54

C ATEX II 3G EEx nA IIC T6, WHG PBT, St., Alu, Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/ 50D***

ATEX II 3G EEx nA IIC T6, WHG ATEX II 3D T85°C, WHG

St., Alu, Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/ 50D***

E ATEX II 1/2 G, EEx de IIC T6, WHG Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/50D

F ATEX II 1/2 G, EEx ia IIC T6, WHG PBT, St., Alu, Alu/sep. FEL55/56/57/58/50A/50D

ATEX II 1/2 G, EEx ia IIC T6, WHG ATEX II 1/2 D, T80°C

St., Alu, Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/50D

L ATEX II 1/2 G, EEx d IIC T6, WHG Alu FEL51/52/54,

FEL55/56/57/58/50A/50D

P FM, IS, Cl. I, II, III, Div. 1, Gr. A–G PBT, St., Alu, Alu/sep.

with NPT cable entry

FEL55/56/57/58/50D/ 50D***

Page 32

Liquiphant M FTL51C

32 Endress+Hauser

Q FM, XP, Cl. I, II, III, Div. 1, Gr. A–G Alu

with NPT cable entry

FEL51/52/54, FEL55/56/57/58/50D

S CSA, IS, Cl. I, II, III, Div. 1, Gr. A–G PBT, St., Alu, Alu/sep.

with NPT cable entry

FEL55/56/57/58/50D/ 50D***

T CSA, XP, Cl. I, II, III, Div. 1, Gr. A–G Alu

with NPT cable entry

FEL51/52/54, FEL55/56/57/58/50D/ 50D***

Coating: ECTFE, PFA (non-conductive)

Certificate, applications

Housing Electronic inserts

1 ATEX II 1/2 G, EEx ia IIB T6, WHG PBT, St., Alu, Alu/sep. FEL55/56/57/58/50A/50D

2 ATEX II 1/2 G, EEx d IIB T6, WHG Alu FEL51/52/54,

FEL55/56/57/58/50A/50D

3 ATEX II 1/2 G, EEx de IIB T6, WHG Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/50D

4 ATEX II 1/2 G, EEx ia IIC** T6, WHG PBT, St., Alu, Alu/sep. FEL55/56/57/58/50A/50D

5 ATEX II 1/2 G, EEx d IIC** T6, WHG Alu FEL51/52/54,

FEL55/56/57/58/50A/50D

6 ATEX II 1/2 G, EEx de IIC** T6, WHG Alu/sep. FEL51/52/54,

FEL55/56/57/58/50A/50D

** With instruction: "Avoid electrostatic charge" *** In preparation!

Page 33

Liquiphant M FTL51C

Endress+Hauser 33

Ordering information

Product structure Liquiphant M FTL51C

Design Basic weight

FTL51C With extension pipe 0.6 kg

10 Approval:

A Non-hazardous area

B ATEX/NEPSI II 3 G EEx nC II T6 Overfill protection to WHG (Germany)

ATEX/NEPSI II 3 D T 85 °C*

C ATEX/NEPSI II 3 G EEx nA II T6 Overfill protection to WHG (Germany)

ATEX/NEPSI II 3 D T 85 °C*

D Non-hazardous area Overfill protection to WHG (Germany)

E ATEX II 1/2 G EEx de IIC T6 Overfill protection to WHG (Germany)

F ATEX II 1/2 G EEx ia IIC T6 Overfill protection to WHG (Germany)

ATEX II 1/2 D T 80 °C*

L ATEX II 1/2 G EEx d IIC T6 Overfill protection to WHG (Germany)

MNEPSI Ex ia IIC T6

N NEPSI Ex d IIC T6

P FM IS, Class I, II, III Division 1, Group A–G

Q FM XP, Class I, II, III Division 1, Group B–G, for E5 housing Group A–G

R FM NI, Class I Division 2, Group A–D

S CSA IS, Class I, II, III Division 1, Group A–G

T CSA XP, Class I, II, III Division 1, Group A–G

U CSA General Purpose

V TIIS Ex ia IIC T3

W TIIS Ex d IIB T3

X TIIS Ex ia IIC T6

Y Special version

1 ATEX II 1/2 G EEx ia IIB T6 Overfill protection to WHG (Germany)

2 ATEX II 1/2 G EEx d IIB T6 Overfill protection to WHG (Germany)

3 ATEX II 1/2 G EEx de IIB T6 Overfill protection to WHG (Germany)

4 ATEX II 1/2 G EEx ia IIC T6 Overfill protection to WHG (Germany)

Observe safety instructions (XA) (electrostatic charge)!

5 ATEX II 1/2 G EEx d IIC T6 Overfill protection to WHG (Germany)

Observe safety instructions (XA) (electrostatic charge)!

6 ATEX II 1/2 G EEx de IIC T6 Overfill protection to WHG (Germany)

Observe safety instructions (XA) (electrostatic charge)!

7 TIIS Ex d IIC T3

8 TIIS Ex d IIC T6

*) Not for PBT

20 Process connection: Additional weight

ACK* 1½" 150 lbs ECTFE > 316/316L Flange ANSI B16.5 1.5 kg

ACL* 1½" 150 lbs PFA (Edlon

) > 316/316L Flange ANSI B16.5 1.5 kg

ACM* 1½" 150 lbs PFA (RubyRed) > 316/316L Flange ANSI B16.5 1.5 kg

ACN* 1½" 150 lbs PFA (conductive) > 316/316L Flange ANSI B16.5 1.5 kg

AEK* 2" 150 lbs ECTFE > 316/316L Flange ANSI B16.5 2.4 kg

AEL* 2" 150 lbs PFA (Edlon

) > 316/316L Flange ANSI B16.5 2.4 kg

AEM* 2" 150 lbs PFA (RubyRed) > 316/316L Flange ANSI B16.5 2.4 kg

AEN* 2" 150 lbs PFA (conductive) > 316/316L Flange ANSI B16.5 2.4 kg

AES* 2" 150 lbs Enamel > 316/316L Flange ANSI B16.5 2.4 kg

AFK* 2" 300 lbs ECTFE > 316/316L Flange ANSI B16.5 3.2 kg

AFL* 2" 300 lbs PFA (Edlon

) > 316/316L Flange ANSI B16.5 3.2 kg

AFM* 2" 300 lbs PFA (RubyRed) > 316/316L Flange ANSI B16.5 3.2 kg

AFN* 2" 300 lbs PFA (conductive) > 316/316L Flange ANSI B16.5 3.2 kg

AFS* 2" 300 lbs Enamel > 316/316L Flange ANSI B16.5 3.2 kg

ALK* 3" 150 lbs ECTFE > 316/316L Flange ANSI B16.5 4.9 kg

ALL* 3" 150 lbs PFA (Edlon

) > 316/316L Flange ANSI B16.5 4.9 kg

ALM* 3" 150 lbs PFA (RubyRed) > 316/316L Flange ANSI B16.5 4.9 kg

ALN* 3" 150 lbs PFA (conductive) > 316/316L Flange ANSI B16.5 4.9 kg

APK* 4" 150 lbs ECTFE > 316/316L Flange ANSI B16.5 7.0 kg

APL* 4" 150 lbs PFA (Edlon

) > 316/316L Flange ANSI B16.5 7.0 kg

APM* 4" 150 lbs PFA (RubyRed) > 316/316L Flange ANSI B16.5 7.0 kg

APN* 4" 150 lbs PFA (conductive) > 316/316L Flange ANSI B16.5 7.0 kg

A8K* 1" 150 lbs ECTFE > 316/316L Flange ANSI B16.5 1.0 kg

A8L* 1" 150 lbs PFA (Edlon

) > 316/316L Flange ANSI B16.5 1.0 kg

A8M* 1" 150 lbs PFA (RubyRed) > 316/316L Flange ANSI B16.5 1.0 kg

Page 34

Liquiphant M FTL51C

34 Endress+Hauser

A8N* 1" 150 lbs PFA (conductive) > 316/316L Flange ANSI B16.5 1.0 kg

BBK DN32 PN25/40 ECTFE >316L Flange EN 1092-1 (DIN 2527) 2.0 kg

BBL DN32 PN25/40 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 2.0 kg

BBM DN32 PN25/40 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 2.0 kg

BBN DN32 PN25/40 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 2.0 kg

BDK DN40 PN25/40 ECTFE >316L Flange EN 1092-1 (DIN 2527) 2.4 kg

BDL DN40 PN25/40 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 2.4 kg

BDM DN40 PN25/40 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 2.4 kg

BDN DN40 PN25/40 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 2.4 kg

BEK DN50 PN6 ECTFE >316L Flange EN 1092-1 (DIN 2527) 1.6 kg

BEL DN50 PN6 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 1.6 kg

BEM DN50 PN6 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 1.6 kg

BEN DN50 PN6 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 1.6 kg

BGK DN50 PN25/40 ECTFE >316L Flange EN 1092-1 (DIN 2527) 3.2 kg

BGL DN50 PN25/40 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 3.2 kg

BGM DN50 PN25/40 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 3.2 kg

BGN DN50 PN25/40 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 3.2 kg

BNK DN80 PN25/40 ECTFE >316L Flange EN 1092-1 (DIN 2527) 5.9 kg

BNL DN80 PN25/40 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 5.9 kg

BNM DN80 PN25/40 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 5.9 kg

BNN DN80 PN25/40 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 5.9 kg

BQK DN100 PN10/16 ECTFE >316L Flange EN 1092-1 (DIN 2527) 5.6 kg

BQL DN100 PN10/16 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 5.6 kg

BQM DN100 PN10/16 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 5.6 kg

BQN DN100 PN10/16 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 5.6 kg

B8K DN25 PN25/40 ECTFE >316L Flange EN 1092-1 (DIN 2527) 1.4 kg

B8L DN25 PN25/40 PFA (Edlon

) >316L Flange EN 1092-1 (DIN 2527) 1.4 kg

B8M DN25 PN25/40 PFA (RubyRed) >316L Flange EN 1092-1 (DIN 2527) 1.4 kg

B8N DN25 PN25/40 PFA (conductive) >316L Flange EN 1092-1 (DIN 2527) 1.4 kg

CGS DN50 PN25/40 Enamel >1.0487 Flange EN 1092-1 (DIN 2527) 3.2 kg

CNS DN80 PN25/40 Enamel >1.0487 Flange EN 1092-1 (DIN 2527) 5.9 kg

KEK 10 K 50 ECTFE >316L Flange JIS B2238 1.7 kg

KEL 10 K 50 PFA (Edlon

) >316L Flange JIS B2238 1.7 kg

KEM 10 K 50 PFA (RubyRed) >316L Flange JIS B2238 1.7 kg

KEN 10 K 50 PFA (conductive) >316L Flange JIS B2238 1.7 kg

YY9* Special version

30 Probe length; Type:

BK ....... mm ECTFE 0.9 kg/m

BL ....... mm PFA (Edlon

) 0.9 kg/m

BM ....... mm PFA (RubyRed) 0.9 kg/m

BN ....... mm PFA (conductive) 0.9 kg/m

BS ....... mm Enamel 0.9 kg/m

CK ....... inch ECTFE 2.3 kg/100 in

CL ....... inch PFA (Edlon

) 2.3 kg/100 in

CM ....... inch PFA (RubyRed) 2.3 kg/100 in

CN ....... inch PFA (conductive) 2.3 kg/100 in

CS ....... inch Enamel 2.3 kg/100 in

DK Length: type II** ECTFE

DL Length: type II** PFA (Edlon

)

DM Length: type II** PFA (RubyRed)

DN Length: type II** PFA (conductive)

DS Length: type II** Enamel

YY 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

40 Electronics; output:

A FEL50A PROFIBUS PA

D FEL50D Density/concentration

1 FEL51 2-wire 19 to 253 V AC

2 FEL52 3-wire PNP 10 to 55 V DC

4 FEL54 Relay DPDT 19 to 253 V AC, 19 to 55 V DC

5 FEL55 8/16 mA, 11 to 36 V DC

6 FEL56 NAMUR (L-H signal)

7 FEL57 2-wire PFM

20 Process connection: Additional weight

Page 35

Liquiphant M FTL51C

Endress+Hauser 35

8 FEL58 NAMUR + test keys (H-L signal)

9 Special version

50 Housing; cable entry:

E1* F27 316L NEMA6P; Thread NPT ¾

E4 F16 Polyester NEMA4X; Thread NPT ½

E5 F13/F17 Alu NEMA4X; Thread NPT ¾ 0.5 kg

E6 F15 316L NEMA4X; Thread NPT ½ 0.1 kg

E7 T13 Alu coated, IP66; Thread NPT ¾ 0.9 kg

Separate connection compartment

F1* F27 316L IP68 Thread G1/2

F4 F16 Polyester IP66; Thread G ½

F5 F13/F17 Alu IP66; Thread G ½ 0.5 kg

F6 F15 316L IP66; Thread G ½ 0.1 kg

F7 T13 Alu coated, IP66; Thread G ½ 0.9 kg

Separate connection compartment

G1* F27 316L IP68; M20 threaded joint

G4 F16 Polyester IP66; M20 threaded joint

G5 F13/F17 Alu IP66; M20 threaded joint 0.5 kg

(EEx d > M20 thread)

G6 F15 316L IP66; M20 threaded joint 0.1 kg

G7 T13 Alu coated, IP66; M20 threaded joint 0.9 kg

Separate connection compartment (EEx d > M20 thread)

N4 F16 Polyester IP66; M12 connector

N5 F13/F17 Alu IP66; M12 connector

N6 F15 316L IP66; M12 connector

Y9 Special version

* F27 housing in preparation.

60 Additional options 1:

A Not selected

K Special adjustment, density H20

L Special adjustment, density H20, EN10204-3.1

S GL/ABS marine approval (

 1600 mm)

Y Special version

70 Additional options 2:

ANot selected

B Temperature spacer

C 2nd line of defence > pressure tight feed-through

Y Special version

FTL51C - Complete product designation

Note! The basic weight includes the compact sensor, electronic insert and polyester housing

40 Electronics; output:

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Liquiphant M FTL51C

36 Endress+Hauser

Accessories

Transparent cover

Cover with sight glass

Weather protection cover For F16 housing

A0018225

For F13, F17 and F27 housing

A0018226

For polyester housing F16

Material: PA 12

Weight: 0.04 kg

Order number: 943461-0001

L00-FTL5xxxx-03-05-xx-xx-016

For stainless steel housing F15

Material: AISI 316L

Weight: 0.16 kg

– With glass sight glass

Order number: 943301-1000

– With PC sight glass

Order number: 52001403 (Not for CSA, General Purpose)

L00-FTL5xxxx-03-05-xx-xx-017

Material Order No. Weight

PBT, gray 71127760 240 g (8.46 oz)

ø110 (4.33)

114 (4.49)

140 (5.51)

mm (in)

102 (4.02)

162 (6.38)

mm (in)

112 (4.41)

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Liquiphant M FTL51C

Endress+Hauser 37

Documentation

Note! You can find supplementary documentation on the product pages at www.endress.com

Operating Instructions 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 KA00285F/00/a6

Liquiphant M density FTL51C Electronic insert: FEL50D KA00286F/00/a6

Technical Information General instructions for electromagnetic compatibility

(Test procedure, installation recommendation) TI00241F/00/en

Liquiphant M FTL50/51(H), for process temperatures up to 150 °C TI00328F/00/en

Isolating amplifier FTL325P, 1 or 3-channel switching units for top-hat rail mounting for Liquiphant M/S with electronic insert FEL57 TI350F/00/en

Isolating amplifier FTL325N, 1 or 3-channel switching units for top-hat rail mounting for Liquiphant M/S with electronic insert FEL56, FEL58 TI353F/00/en

Liquiphant S FTL70/71, for medium temperatures up to 280 °C TI354F/00/en

Isolating amplifier FTL375P, 1 to 3-channel switching units for top-hat rail mounting for Liquiphant M/S with electronic insert FEL57 TI360F/00/en

Liquiphant M density, density computer FML621 TI420F/00/en

Weld-in adapter, TI00426F

Functional safety (SIL) Liquiphant M with electronic insert FEL51 (MAX)

SD00164F

Material Order No. Weight

PA6, gray 71040497 300 g (10.58 oz)

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Liquiphant M FTL51C

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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) SD00187F

Liquiphant M with electronic insert FEL55 (MAX) SD00167F

Liquiphant M with electronic insert FEL55 (MIN) SD00279F

Liquiphant M with electronic insert FEL57 + Nivotester FTL325P SD01508F (MAX + MIN)

Liquiphant M with electronic insert FEL56 + Nivotester FTL325N SD01521F (MAX + MIN)

Liquiphant M with electronic insert FEL58 + Nivotester FTL325N SD01522F (MAX + MIN)

Safety Instructions (ATEX) 40II 1/2 G, Ex d IIC/B (KEMA 99 ATEX 1157)

XA00031F/00/a3

40II 1/2 G, Ex ia/ib IIC/B (KEMA 99 ATEX 0523) XA00063F/00/a3

40II 1 G, Ex ia IIC/B (KEMA 99 ATEX 5172 X) XA00064F/00/a3

40II 1/2 G, Ex de IIC/B (KEMA 00 ATEX 2035) XA00108F/00/a3

40II 3 G, Ex nA/nC II (EG 01 007-a) XA00182F/00/a3

Safety Instructions (NEPSI) Ex d IIC/IIB T3-T6 , Ex d IIC T2-T6

(NEPSI GYJ06424) XA00401F/00/B2

Ex ia IIC T2-T6, Ex ia IIB T3-T6 (NEPSI GYJ05556, NEPSI GYJ06464), XC00009F/00/b2

Ex nA II T3-T6, Ex nC/nL IIC T3-T6 (NEPSI GYJ04360, NEPSI GYJ071414) XC00010F/00/b2

Control Drawings Liquiphant M (IS and NI) Current output PFM, NAMUR Entity installation

Class I, Div. 1, 2, Groups A, B, C, D Class I, Zone 0 Class II, Div. 1, 2, Groups E, F, G Class III ZD00041F

Liquiphant M, Liquiphant S (cCSAus / IS) Class I, Div. 1, Groups A, B, C, D Ex ia IIC T6 Class II, Div. 1, Groups E, F, G Class III ZD00042F

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Liquiphant M FTL51C

Endress+Hauser 39

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 Class II, Groups E, F, G Class III ZD00240F

Liquiphant M (IS and NI) PROFIBUS PA, FOUNDATION FieldbusClass I, Zone 0, IIC Class I, Division 1, 2, Groups A, B, C, D Class II, Division 1, 2, Groups E, F, G Class III ZD00244F

Page 40

www.addresses.endress.com

7131030371310310