Endress+Hauser FTL51B Specifications

Download

Page 1

TI01403F/00/EN/02.19 71441084 2019-06-28

Products

Solutions Services

Technical Information

Liquiphant FTL51B

Vibronic

Limit switch for liquids

Application

• Point level switch for minimum or maximum detection in tanks, vessels and pipes with all kinds of liquids, even in hazardous areas

• Process temperature range: –50 to +150 °C (–58 to +302 °F)

• Pressures up to 100 bar (1 450 psi)

• Viscosities up to 10 000 mPa⋅s

• Ideal substitute for float switches, as reliable function is not affected by flow, turbulence, bubbles, foam, vibration, solids content or buildup.

• Extension pipe up to 6 m (20 ft)

Advantages

• Approved for safety systems with functional safety requirements up to SIL2/SIL3 in accordance with IEC 61508

• Quick and cost-effective commissioning, as no adjustment required

• Design in accordance with ASME B31.3 and CRN approval

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

• Functional safety: monitoring of oscillation frequency of tuning fork

• RFID TAG - easy measuring point identification and easier data access

• Functional testing by means of test button on electronic insert

• Heartbeat Technology via free iOS/Android SmartBlue app

• Measuring device with Bluetooth® wireless technology

Page 2

Liquiphant FTL51B

About this document ........................ 4

Symbols ................................... 4

Function and system design ................... 5

point level detection ........................... 5

Measuring principle ........................... 5

Measuring system ............................ 5

Dependability ............................... 5

Input ..................................... 6

Measured variable ............................ 6

Measuring range ............................. 6

Output ................................... 6

Output and input variants ........................ 6

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

Ex connection data ............................ 7

2-wire AC (electronic insert FEL61) ............. 8

Supply voltage ............................... 8

Power consumption ............................ 8

Current consumption ........................... 8

Power output and load current ..................... 8

Behavior of output signal ........................ 8

Terminal assignment ........................... 8

Behavior of switch output and signaling .............. 9

PFM output (electronic insert FEL67) ........... 14

Supply voltage .............................. 14

Power consumption ........................... 14

Behavior of output signal ....................... 14

Terminal assignment .......................... 15

Connection cable ............................. 15

Behavior of switch output and signaling ............. 16

2-wire NAMUR > 2.2 mA/< 1.0 mA (electronic

insert FEL68) ............................. 16

Supply voltage .............................. 16

Power consumption ........................... 16

Behavior of output signal ....................... 16

Terminal assignment .......................... 17

Behavior of switch output and signaling ............. 17

Bluetooth module and Heartbeat Technology .... 18

Bluetooth module VU121 (optional) ................ 18

Heartbeat Technology ......................... 18

Functions .................................. 18

Technical data .............................. 19

LED module VU120 (optional) ................ 19

Supply voltage .............................. 19

Power consumption ........................... 19

Current consumption .......................... 19

3-wire DC-PNP (electronic insert FEL62) ......... 9

Supply voltage ............................... 9

Power consumption ............................ 9

Current consumption ........................... 9

Load current ................................. 9

Capacitance load .............................. 9

Residual current .............................. 9

Residual voltage .............................. 9

Behavior of output signal ....................... 10

Terminal assignment .......................... 10

Behavior of switch output and signaling ............. 10

Universal current connection with relay output

(electronic insert FEL64) .................... 11

Supply voltage .............................. 11

Power consumption ........................... 11

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

Behavior of output signal ....................... 11

Terminal assignment .......................... 12

Behavior of switch output and signaling ............. 12

DC connection, relay output (electronic insert

FEL64 DC) ................................ 13

Supply voltage .............................. 13

Power consumption ........................... 13

Connectable load ............................. 13

Behavior of output signal ....................... 13

Terminal assignment .......................... 13

Behavior of switch output and signaling ............. 14

Performance characteristics .................. 20

Reference operating conditions ................... 20

Maximum measured error ...................... 20

Hysteresis ................................. 20

Non-repeatability ............................ 20

Influence of the process temperature ............... 20

Influence of the process pressure .................. 20

Influence of the density of the process medium (at room

temperature and normal pressure) ................. 21

Installation ............................... 22

Mounting location, orientation ................... 22

Installation instructions ........................ 22

Taking marking into account ..................... 24

Sliding sleeves .............................. 24

Aligning the cable entry ........................ 24

Special mounting instructions .................... 25

Environment .............................. 26

Ambient temperature range ..................... 26

Storage temperature .......................... 27

Humidity .................................. 27

Operating altitude ............................ 27

Climate class ............................... 27

Degree of protection .......................... 27

Vibration resistance .......................... 27

Shock resistance ............................. 27

Mechanical load ............................. 27

Electromagnetic compatibility .................... 27

2 Endress+Hauser

Page 3

Liquiphant FTL51B

Process .................................. 28

Process temperature range ...................... 28

Thermal shock .............................. 28

Process pressure range ........................ 28

Test pressure ............................... 28

Density ................................... 29

Pressure tightness ........................... 29

Mechanical construction .................... 30

Design, dimensions ........................... 30

Dimensions ................................ 31

Weight ................................... 38

Materials ................................. 39

Surface roughness ........................... 39

Operability ............................... 40

Operating concept ............................ 40

Elements on the electronic insert .................. 40

Terminals ................................. 40

Local operation ............................. 40

Local display ................................ 41

Remote interrogation ......................... 42

Diagnostic information ........................ 42

Certificates and approvals ................... 43

CE mark .................................. 43

RCM-Tick marking ............................ 43

Ex approval ................................ 43

Overfill protection ............................ 43

Functional safety ............................ 43

Marine approvals ............................ 44

Radio approval .............................. 44

CRN approval ............................... 44

Inspection certificates ......................... 44

Pressure Equipment Directive .................... 44

Process seal as per ANSI/ISA 12.27.01 .............. 44

China RoHS symbol ........................... 45

RoHS ..................................... 45

Additional certification ......................... 45

ASME B 31.3 ............................... 45

Ordering information ....................... 45

TAG ..................................... 45

Application packages ....................... 46

Heartbeat Technology ......................... 46

Accessories ............................... 46

Device-specific accessories ...................... 46

Supplementary documentation ............... 52

Special documentation ......................... 52

Supplementary device-dependent documentation ....... 52

Registered trademarks ...................... 52

Endress+Hauser 3

Page 4

About this document

DANGER

WARNING

CAUTION

NOTICE

Symbols Safety symbols

This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or fatal injury.

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or fatal injury.

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or medium injury.

This symbol contains information on procedures and other facts which do not result in personal injury.

Electrical symbols

Ground connection

Grounded clamp, which is grounded via a grounding system.

Protective earth (PE) Ground terminals, which must be grounded prior to establishing any other connections. The ground terminals are located on the inside and outside of the device.

Liquiphant FTL51B

Symbols for certain types of information

Permitted Procedures, processes or actions that are permitted.

Forbidden Procedures, processes or actions that are forbidden.

Tip Indicates additional information

Reference to documentation

Reference to another section

, 2., 3. Series of steps

Symbols in graphics

A, B, C ... View

1, 2, 3 ... Item numbers

Hazardous area

Safe area (non-hazardous area)

4 Endress+Hauser

Page 5

Liquiphant FTL51B

A B

Function and system design

point level detection

Measuring principle

Measuring system

Maximum or minimum detection for liquids in tanks or pipes in all industries. Suitable for leakage monitoring, dry-running protection, pump protection or overfill protection, for example .

Specific versions are suitable for use in hazardous areas.

The point level switch differentiates between the "covered" and "not covered" conditions.

Depending on the MIN (minimum detection) or MAX (maximum detection) modes, there are two possibilities in each case: OK status and demand mode

OK status

• In MIN mode, the fork is covered, e. g. pump protection

• In MAX mode, the fork is not covered e. g. overfill protection Demand mode

• In MIN mode, the fork is not covered e. g. pump protection

• In MAX mode, the fork is covered e. g. overfill protection

The sensor's tuning fork vibrates at its intrinsic frequency. As soon as the liquid covers the tuning fork, the vibration resistance decreases. The change in frequency causes the point level switch to switch.

 1 Example of a measuring system

A Device for direct connection of a load B Device for connection to a separate switching unit or PLC

Dependability Device-specific IT security

The device settings and the diagnostic data can be read out via Bluetooth. Device settings cannot be changed via Bluetooth.

A0035308

Endress+Hauser 5

Page 6

Input

Liquiphant FTL51B

Measured variable

Measuring range

Level (point level), MAX or MIN safety

Depends on the installation location and the pipe extension ordered Maximum sensor length 6 m (20 ft)

Output

Output and input variants Electronic inserts

2-wire AC (FEL61)

• Two-wire AC version

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

3-wire DC-PNP (FEL62)

• Three-wire DC version

• Switches the load via the transistor (PNP) and separate connection, e. g. in conjunction with

programmable logical controllers (PLC)

• Ambient temperature –60 °C (–76 °F), optionally available for order

Low-temperature electronic inserts are marked LT.

Universal current connection, relay output (FEL64)

• Switches the loads via 2 potential-free changeover contacts

• Ambient temperature –60 °C (–76 °F), optionally available for order

Low-temperature electronic inserts are marked LT.

Direct current connection, relay output (FEL64DC)

• Switches the load via 2 potential-free changeover contacts

• Ambient temperature –60 °C (–76 °F), optionally available for order

Low-temperature electronic inserts are marked LT.

PFM output (FEL67)

• For separate switching device (Nivotester FTL325P, FTL375P)

• PFM signal transmission; current pulses are superimposed on the power supply along the two-wire

cabling

• Ambient temperature –52 °C (–62 °F), optionally available for order

The low-temperature electronic inserts are marked LT

2-wire NAMUR > 2.2 mA/< 1.0 mA (FEL68)

• For separate switching device, e. g. Nivotester FTL325N

• Signal transmission H-L edge 2.2 to 3.8/0.4 to 1.0 mA as per IEC 60917-5-6 (NAMUR) on two-

wire cable

• Ambient temperature –52 °C (–62 °F), optionally available for order

Low-temperature electronic inserts are marked LT.

2-wire density (FEL60D) for density measurement

Connection to Density Computer FML621

For more information, see the Technical Information for density measuring technology.

Output signal Switch output

Preset switching times can be ordered. The following ranges can be ordered for point level switches without communication (AC two-wire, relays, DC-PNP, PFM, NAMUR):

• 0.5 seconds when the fork is covered and 1.0 seconds when it is uncovered (factory setting)

• 0.25 seconds when the fork is covered and 0.25 seconds when it is uncovered (fastest setting)

• 1.5 seconds when the fork is covered and 1.5 seconds when it is uncovered

• 5 seconds when the fork is covered and 5 seconds when it is uncovered

COM interface

For connecting to modules VU120 or VU121 (no modifying effect)

6 Endress+Hauser

Page 7

Liquiphant FTL51B

Bluetooth® wireless technology (optional)

The device has a Bluetooth® wireless technology interface. Device data and diagnostic data can be read out using the free "SmartBlue" app.

Ex connection data

See safety instructions (XA): All data relating to explosion protection are provided in separate Ex documentation and are available from the Downloads Area of the Endress+Hauser-website. The Ex documentation is supplied as standard with all Ex devices.

Endress+Hauser 7

Page 8

Liquiphant FTL51B

>0,5

COM

NL1

MIN

MAX

>0,7

U 19...253 V AC I max: 350 mA

1 A

L1 NPE

1 2

2-wire AC (electronic insert FEL61)

• Two-wire AC version

• Switches the load directly into the power supply circuit via an electronic switch; always connect in

series with a load.

• Functional testing without level change

A functional test can be performed on the device using the test button on the electronic insert.

Supply voltage

Power consumption

Current consumption

Power output and load current

Behavior of output signal

Terminal assignment

U = 19 to 253 V

Residual voltage when switched through: maximum 12 V

Pay attention to the following as per IEC/EN61010-1: Provide a suitable circuit breaker for the device, and limit the current to 1 A, e. g. by installing a 1 A fuse (slow-blow) in the line (not the neutral wire) of the supply circuit.

P ≤ 2 VA

Residual current when blocked: I ≤ 3.8 mA

The red LED flashes in the event of an overload or short-circuit. Check for an overload or shortcircuit every 5 seconds. The test is deactivated after 60 seconds.

• Max 89 VA/253 V (350 mA); max 8.4 VA/24 V (350 mA)

• Min 2.5 VA/253 V (10 mA); min ≥ 0.5 VA/24 V (20 mA)

• With overload and short-circuit protection.

• OK status: load on (switched through)

• Demand mode: load off (blocked)

• Alarm: load off (blocked)

Always connect an external load. The electronic insert has integrated short-circuit protection.

A0036060

 2 2-wire AC, electronic insert FEL61

8 Endress+Hauser

Page 9

Liquiphant FTL51B

MAX

RD YE GN

MIN

(N)

<3.8 mA

ΔU

Behavior of switch output and signaling

A0031901

 3 Behavior of switch output and signaling, electronic insert FEL61

MAXDIP switch for setting MAX safety mode MIN DIP switch for setting MIN safety mode RD LED, red, for warning or alarm YE LED, yellow, switch status GN LED, green, operational status, device on ILLoad current switched through

Supply voltage

Power consumption

Current consumption

Load current

Capacitance load

Residual current

Residual voltage

3-wire DC-PNP (electronic insert FEL62)

• Three-wire DC version

• Preferably in conjunction with programmable logic controllers (PLC), DI modules as per EN 61131-2. Positive signal at switch output of electronics module (PNP)

• Functional testing without level change A functional test can be performed on the device using the test button on the electronic insert or using the test magnet with the housing closed.

WARNING

Failure to use the prescribed power unit.

Risk of fatal injury due to electric shock!

The FEL62 may only be powered by devices with safe galvanic isolation, as per IEC 61010-1.

‣

U =10 to 55 V

Pay attention to the following as per IEC/EN61010-1: Provide a suitable circuit breaker for the device, and limit the current to 500 mA, e. g. by installing a 0.5 A fuse (slow-blow) in the line (not the neutral wire) of the supply circuit.

P ≤ 0.5 W

I ≤ 10 mA (without load)

The red LED flashes in the event of an overload or short-circuit.

I ≤ 350 mA with overload and short-circuit protection

C ≤ 0.5 µF at 55 V, C ≤ 1.0 µF at 24 V

I < 100 µA (with transistor blocked)

U < 3 V (with transistor switched through)

Endress+Hauser 9

Page 10

Liquiphant FTL51B

U = 10...55 V DC I max: 350 mA

L-L+

COM

MIN

MAX

>0,7

>0,5

0.5 A

L+ L-

I 350 mA

max

U 55 V

max

M12

1 2 3

L+ L-

MAX

RD YE GN

MIN

(L–)

<100 µA

L+

ΔU

(L–)

<100 µA

L+

(L–)

<100 µA

L+

Behavior of output signal

Terminal assignment

• OK status: switched through

• Demand mode: blocked

• Alarm: blocked

A0036061

 4 3-wire DC-PNP, electronic insert FEL62

A Connection wiring with terminals B Connection wiring with M12 connector in housing as per EN61131-2 standard

Behavior of switch output and signaling

 5 Behavior of switch output and signaling, electronic insert FEL62

MAXDIP switch for setting MAX safety mode MIN DIP switch for setting MIN safety mode

10 Endress+Hauser

RD LED, red, for warning or alarm YE LED, yellow, switch status GN LED, green, operational status, device on ILLoad current switched through

A0033508

Page 11

Liquiphant FTL51B

Universal current connection with relay output (electronic insert FEL64)

• Switches the loads via 2 potential-free changeover contacts

• Two galvanically isolated change-over contacts (DPDT), both change-over contacts switch simultaneously

• Functional testing without level change. A functional test can be performed on the device using the test button on the electronic insert or using the test magnet with the housing closed.

WARNING

In the event of an error, the electronic insert can exceed the limit temperature for touchable surfaces, resulting in a risk of burns.

Do not touch the electronics in the event of an error!

‣

Supply voltage

Power consumption

Connectable load

Behavior of output signal

U = 19 to 253 VAC/19 to 55 V

P < 25 VA,< 1.3 W

Loads switched via 2 potential-free changeover contacts (DPDT)

• IAC ≤ 6 A (Ex de 4 A), U~ ≤ AC 253 V; P~ ≤ 1 500 VA, cos φ = 1, P~ ≤ 750 VA, cos φ > 0.7

• IDC ≤ 6 A (Ex de 4 A) to DC 30 V, I DC ≤ 0.2 A to 125 V

According to IEC 61010: the sum of the voltages of the relay outputs and power supply ≤ 300 V

Preferably use electronic insert FEL62 DC PNP for low DC current loads, e. g. connection to a PLC.

Relay contact material: silver/nickel AgNi 90/10

When connecting a device with high inductance, fit a spark suppressor to protect the relay contact. Depending on the connected load, a fine-wire fuse protects the relay contact in the event of a shortcircuit.

Both relay contacts switch simultaneously.

• OK status: relay energized

• Demand mode: relay de-energized

• Alarm: relay de-energized

Endress+Hauser 11

Page 12

Terminal assignment

L1 N

3 5

876

U = 19...55 V DC

U 19...253 V AC

0.5 A

2 2

L1 L+

NO NONC NCC CNL-PE

1 2 3 64 75 8

MIN

>0,7

MAX

>0,5

COM

3 54

6 87

3 54

33554

6 87

66887

MAX

RD YE GN

MIN

Liquiphant FTL51B

A0036062

 6 Universal current connection with relay output, electronic insert FEL64

1 When bridged, the relay output works using NPN logic. 2 Connectable load

Behavior of switch output and signaling

A0033513

 7 Behavior of switch output and signaling, electronic insert FEL64

MAXDIP switch for setting MAX safety mode MIN DIP switch for setting MIN safety mode RD LED, red, for alarm YE LED, yellow, switch status GN LED, green, operational status, device on

12 Endress+Hauser

Page 13

Liquiphant FTL51B

L1 N

3 5

876

U = 9...20 V DC

0.5 A

2 2

L1 L+

NO NONC NCC CNL-PE

1 2 3 64 75 8

MIN

>0,7

MAX

>0,5

COM

DC connection, relay output (electronic insert FEL64 DC)

• Switches the loads via 2 potential-free changeover contacts

• Two galvanically isolated change-over contacts (DPDT), both change-over contacts switch simultaneously

• Functional testing without level change. Functional testing of the entire device can be performed using the test button on the electronic insert or with the test magnet with the housing closed.

Supply voltage

Power consumption

Connectable load

Behavior of output signal

Terminal assignment

U = 9 to 20 V

P < 1.0 W

Loads switched via 2 potential-free changeover contacts (DPDT)

• IAC ≤ 6 A (Ex de 4 A), U~ ≤ AC 253 V; P~ ≤ 1 500 VA, cos φ = 1, P~ ≤ 750 VA, cos φ > 0.7

• IDC ≤ 6 A (Ex de 4 A) to DC 30 V, I DC ≤ 0.2 A to 125 V

According to IEC 61010: the sum of the voltages of the relay outputs and power supply ≤ 300 V

Preferably use electronic insert FEL62 DC PNP for low DC current loads, e. g. connection to a PLC.

Relay contact material: silver/nickel AgNi 90/10

• OK status: relay energized

• Demand mode: relay de-energized

• Alarm: relay de-energized

Endress+Hauser 13

A0037685

 8 DC connection with relay output, electronic insert FEL64 DC

1 When bridged, the relay output works using NPN logic. 2 Connectable load

Page 14

Behavior of switch output

3 54

6 87

3 54

33554

6 87

66887

MAX

RD YE GN

MIN

and signaling

Liquiphant FTL51B

A0033513

 9 Behavior of switch output and signaling, electronic insert FEL64 DC

MAXDIP switch for setting MAX safety mode MIN DIP switch for setting MIN safety mode RD LED, red, for alarm YE LED, yellow, switch status GN LED, green, operational status, device on

Supply voltage

Power consumption

Behavior of output signal

PFM output (electronic insert FEL67)

• For connecting to the Nivotester FTL325P and FTL375P switching units from Endress+Hauser

• PFM signal transmission; pulse frequency modulation, superimposed on the power supply along the two-wire cabling

• Functional testing without level change:

• A functional test can be performed on the device using the test button on the electronic insert.

• The functional test can also be prompted by disconnecting the supply voltage or triggered

directly by the Nivotester FTL325P and FTL375P switching unit.

U = 9.5 to 12.5 V

Pay attention to the following as per IEC/EN61010-1: Provide a suitable circuit breaker for the device.

P ≤ 150 mW with Nivotester FTL325P or FTL375P

• OK status: MAX mode 150 Hz, MIN mode 50 Hz

• Demand mode: MAX mode 50 Hz, MIN mode 150 Hz

• Alarm: MAX/MIN mode 0 Hz

14 Endress+Hauser

Page 15

Liquiphant FTL51B

>0,5

COM

MIN

MAX

>0,7

– +

L- L+

7 33 37

8 34 38

z6 d6

1 2

Terminal assignment

Connection cable

A0036065

 10 PFM output, electronic insert FEL67

7/ 8: Nivotester FTL325P 1 CH, FTL325P 3 CH input 1 33/ 34: Nivotester FTL325P 3 CH input 2 37/ 38: NivotesterFTL325P 3 CH input 3 d4/ d2: Nivotester FTL375P input 1 z4/ z2: Nivotester FTL375P input 2 z6/ d6: Nivotester FTL375P input 3

• Maximum cable resistance: 25 Ω per core

• Maximum cable capacitance: < 100 nF

• Maximum cable length: 1 000 m (3 281 ft)

Endress+Hauser 15

Page 16

Behavior of switch output

MAX

RD YE GN

MIN

L+

150 Hz

50 Hz

150 Hz

0 Hz

L-

and signaling

Liquiphant FTL51B

A0037696

 11 Switching behaviour and signaling, electronic insert FEL67

MAXDIP switch for setting MAX safety mode MIN DIP switch for setting MIN safety mode RD LED, red, for alarm YE LED, yellow, switch status GN LED, green, operational status, device on

Supply voltage

Power consumption

Behavior of output signal

The MAX/MIN switch must be set in accordance with the application. Only then is it possible to perform the functional test correctly.

2-wire NAMUR > 2.2 mA/< 1.0 mA (electronic insert FEL68)

• For connecting to isolating amplifier as per NAMUR (IEC 60947-5-6), e. g. the Nivotester FTL325N from Endress+Hauser

• Signal transmission H-L edge 2.2 to 3.8 mA/ 0.4 to 3.8 mA as per IEC 60947-5-6 (NAMUR) on two-wire cable

• Functional testing without level change. A functional test can be performed on the device using the test button on the electronic insert or using the test magnet with the housing closed. The functional test can also be triggered by interrupting the supply voltage or activated directly from the Nivotester FTL325N.

U = 8.2 V

NAMUR IEC 60947-5-6

• OK status: output current 2.2 to 3.8 mA

• Demand mode: output current 0.4 to 1.0 mA

• Alarm: output current 0.4 to 1.0 mA

Pay attention to the following as per IEC/EN61010-1: Provide a suitable circuit breaker for the device.

16 Endress+Hauser

Page 17

Liquiphant FTL51B

>0,5

COM

– +

MIN

MAX

>0,7

IEC 60947-5-6 8,2 V DC NAMUR

L- L+

1 2

MAX

RD YE GN

MIN

L+

2.2...3.8 mA

0.4...1.0 mA

2.2...3.8 mA

0.4...1.0 mA

< 1.0 mA

L-

Terminal assignment

A0036066

 12 2-wire NAMUR > 2.2 mA/< 1.0 mA, electronic insert FEL68

Behavior of switch output and signaling

A0037694

 13 Behavior of switch output and signaling, electronic insert FEL68

MAXDIP switch for setting MAX safety mode MIN DIP switch for setting MIN safety mode RD LED, red, for alarm YE LED, yellow, switch status GN LED, green, operational status, device on

When using the device with the electronic insert FEL68 (2-wire NAMUR), the Bluetooth module must be ordered separately, including the required battery.

Product Configurator, order code for "Accessory mounted", option NG "Prepared for Heartbeat Verification + Monitoring + Bluetooth".

Endress+Hauser 17

Page 18

Bluetooth module VU121

Contains

FCC ID:

IC:

(optional)

Liquiphant FTL51B

Bluetooth module and Heartbeat Technology

A0039257

 14 Bluetooth module VU121

• The Bluetooth module can be connected via the COM interface to the following electronic inserts: FEL61, FEL62, FEL64, FEL64 DC, FEL67, FEL68 (2-wire NAMUR).

• The Bluetooth module with battery is suitable for use in hazardous areas.

• For energy-related reasons, the Bluetooth module requires a special battery when operated with the 2-wire NAMUR electronics.

When using the device with the electronic insert FEL68 (2-wire NAMUR), the Bluetooth module must be ordered separately, including the required battery.

Product Configurator, order code for "Accessory mounted", option NG "Prepared for Heartbeat Verification + Monitoring + Bluetooth".

Batteries

The battery is categorized as dangerous goods when transported by air and may not be installed in the device when shipped.

Replacement batteries can be purchased from a specialist retailer. Only the following types of AA 3.6 V lithium batteries made by the manufacturers listed below are suitable as replacement batteries:

• SAFT LS14500

• TADIRAN SL-360/s

• XENOENERGY XL-060F

Heartbeat Technology Heartbeat Technology module

Heartbeat Diagnostics Continuously monitors and evaluates the device status and process conditions. Generates diagnostic messages when certain events occur and provides troubleshooting measures in accordance with NAMUR NE 107.

Heartbeat Verification Performs a verification of the current device status upon request and generates a Heartbeat Technology verification report showing the result of the verification.

Heartbeat Monitoring Continuously provides device and/or process data for an external system. Analysis of this data forms the basis for process optimization and predictive maintenance.

Functions

• Connection via COM interface: Bluetooth module for device diagnostics via a smartphone app or tablet app

• Display the battery status via app when used with electronic insert FEL68 (NAMUR)

• User guidance (wizard) for SIL/WHG proof testing

• Visible in the livelist 10 seconds after the Bluetooth search commences

• Data can be read from the Bluetooth module 60 seconds after the supply voltage has been switched on.

• Display of the current vibration frequency and the switching state of the device

The yellow LED flashes when the Bluetooth module is connected to another Bluetooth device, e.g. a cellular phone.

18 Endress+Hauser

Page 19

Liquiphant FTL51B

Technical data

• Approval: intrinsically safe Ex ia, IS or ec/ic

• NAMUR electronics (electronic insert FEL68): For energy-related reasons, the Bluetooth module VU121 requires a special battery when operated with the 2-wire NAMUR electronics. The service life of the Bluetooth module without replacing the battery is at least 5 years with a maximum of 60 downloads of complete datasets (at ambient temperatures between 10 to 40 °C (50 to 104 °F)).

• Maximum free-field range 50 m (165 ft)

• Operation radius with intervisibility 10 m (33 ft) around the device

For documentation on radio approvals, see the Endress+Hauser website: www.endress.com → Downloads.

LED module VU120 (optional)

A0039258

 15 LED module

Supply voltage

Power consumption

Current consumption

The bright LED display indicates the switch status or the alarm condition and can be connected to the following electronic inserts: FEL62, FEL64, FEL64DC

U = 12 to 55 VDC, 19 to 253 V

U ≤ 0.7 W, < 6 VA

= 0.4 A

max

Endress+Hauser 19

Page 20

Performance characteristics

~13 (0.5)

~4 (0.16)

~12.5 (0.49)

A B C

Liquiphant FTL51B

Reference operating conditions

• Ambient temperature: 23 °C (73 °F)

• Process temperature: 23 °C (73 °F)

• Density (water): 1 g/cm

• Medium viscosity: 1 mPa⋅s

• Process pressure: ambient pressure/unpressurized

• Sensor installation: vertically from above

• Density selection switch: > 0.7 g/cm3 (SGU)

• Switch direction of sensor: uncovered to covered

Taking the switch point into consideration

Typical switch points, depending on the orientation of the point level switch

(water +23 °C (+73 °F))

 16 Typical switch points. Unit of measurement mm (in)

A Installation from above B Installation from below C Installation from the side D Switch point

A0037915

Maximum measured error

Hysteresis

Non-repeatability

Influence of the process temperature

Influence of the process pressure

At reference operating conditions: max. ±1 mm (0.04 in)

Typically 2.5 mm (0.1 in)

2 mm (0.08 in)

The switch point moves between +1.4 to –2.6 mm (+0.06 to –0.1 in) in the temperature range from –50 to +150 °C (–58 to +302 °F)

The switch point moves between 0 to 2.6 mm (0 to 0.1 in) in the pressure range from –1 to +64 bar (14.5 to 928 psi)

20 Endress+Hauser

Page 21

Liquiphant FTL51B

0.5

1 1.5 2

-8

-6

-4

-2

[in]

[g/cm!]

A ( )ρ

B1 A1

-0.3

-0.2

-0.1

0.2

[mm]

0.1 B ( )ρ

[ ]ρ

Alloy C22 316L

Influence of the density of the process medium (at room temperature and normal pressure)

 17 Switch point deviation over density

A Density switch setting (ρ) > 0.7 A1

Reference condition ρ = 1 g/cm B Density switch setting (ρ) > 0.5 B1

Reference condition ρ = 0.7 g/cm C Switch point deviation

A0037670

Density setting

• TK

, [mm/10 k]

typ

• ρ > 0.7: –0.2

• ρ > 0.5: –0.2

• Pressure

, [mm/10 bar]

typ

• ρ > 0.7: –0.3

• ρ > 0.5: –0.4

Endress+Hauser 21

Page 22

Mounting location,

> 25 (0.98)

> 40 (1.57)

orientation

Liquiphant FTL51B

Installation

Open the device only in a dry environment!

 18 Installation in any position in a vessel, pipe or tank

1 Temperature spacer for tank with insulation and/or high process temperatures

Installation instructions Take viscosity into consideration

Low viscosity

 19 Installation example for low-viscosity liquids. Unit of measurement mm (in)

D Diameter of installation socket: at least 50 mm (2.0 in)

Low viscosity, e. g. water: < 2 000 mPa⋅s

It is permitted to position the tuning fork within the installation socket.

A0037879

A0033297

High viscosity

A0037348

 20 Installation example for a highly viscous liquid. Unit of measurement mm (in)

22 Endress+Hauser

Page 23

Liquiphant FTL51B

NOTICE

Highly viscous liquids may cause switching delays.

Make sure that the liquid can run off the tuning fork easily.

‣

Deburr the socket surface.

‣

High viscosity, e. g. viscous oils: < 10 000 mPa⋅s

The tuning fork must be located outside the installation socket!

Avoiding buildup

 21 Installation examples for a highly viscous process medium

• Use short installation sockets to ensure that the turning fork can project freely into the vessel.

• Install preferably flush-mounted on vessels or in pipes.

• Leave sufficient distance between the buildup expected on the tank wall and the tuning fork.

Take clearance into consideration

 22 Take clearance into consideration

A0033239

A0033236

Allow sufficient space outside the tank for mounting, connection and settings involving the electronic insert.

Endress+Hauser 23

Page 24

Taking marking into account Align the tuning fork in accordance with the marking.

316L/G1

0.7 Nm

 23 Markings for aligning the tuning fork

Using the marking, the tuning fork can be aligned in such a way that medium can run off easily and buildup is avoided.

Markings may include the following:

• material specification, thread description or circle on hexagonal nut or welding neck

• Symbol II on rear of flange or Tri-Clamp

Installing in pipes

Liquiphant FTL51B

A0039125

Sliding sleeves

Aligning the cable entry

A0034851

 24 Installation in pipes

Flow velocities up to 5 m/s at a viscosity of 1 mPa⋅s and density of 1 g/cm3 (SGU) Check the function in the event of other process medium conditions.

The flow will not be significantly impeded if the tuning fork is correctly aligned and the marking on the adapter is pointing in the direction of flow.

The marking is visible when installed.

 See the "Accessories" section.

A0037347

 25 Housing with external locking screw

24 Endress+Hauser

Page 25

Liquiphant FTL51B

316L

Special mounting instructions

Support the device

A0031874

 26 Support in the event of dynamic load

Support the device in the event of severe dynamic load. Maximum lateral loading capacity of the pipe extensions and sensors: 75 Nm (55 lbf ft).

Weld-in adapter with leakage hole

A0039230

 27 Weld-in adapter with leakage hole

Weld in the welding neck in such a way that the leakage hole is pointing downwards. This enables any leaks to be detected quickly.

Endress+Hauser 25

Page 26

Environment

+150

+302

+120

+248

+90

+194

+60

+140

+30

+86

-30

-22

-60

-76

70158

60140

50122

40104

3086

1050

032

[°C]

[°F]

Liquiphant FTL51B

Ambient temperature range

–40 to +70 °C (–40 to +158 °F)

WARNING

Permitted connection voltage exceeded!

For electrical safety reasons, the maximum connection voltage for all electronic inserts at

‣

ambient temperatures below –40 °C (–40 °F) is limited to a maximum of 35 V DC.

Optional –60 °C (–76 °F) or –52 °C (–62 °F)

In the hazardous area, the permitted ambient temperature can be limited depending on the zones and gas groups. Pay attention to the information in the Ex documentation (XA).

The minimum permitted ambient temperature of the plastic housing is limited to –20 °C (–4 °F); "indoor use" applies in North America.

A0037923

 28 Permitted ambient temperature Ta at the housing as a function of the process temperature Tp in the vessel:

A Device without LED module; at process temperature Tp > 90°, with FEL64 and max. load current 4 A B Device with LED module; at process temperature and FEL64 Tp > 90° max. load current 2 A

For devices with a temperature spacer, the following ambient temperatures apply across the entire process temperature range: A: 70 °C B: 60 °C

Ordering information:

• Product Configurator, order code for "output", option "1" Ambient temperature –60 °C (–76 °F), optionally available for order

• Product Configurator, order code for "output", option "2" Ambient temperature –52 °C (–62 °F), optionally available for order.

Low-temperature electronic inserts are marked LT.

• Bluetooth module (non-Ex): –40 to +85 °C (–40 to +185 °F)

• Bluetooth module (Ex ia): –40 to +65 °C (–40 to +149 °F), T4

• LED module: –40 to +60 °C (–40 to +140 °F)

Outdoor operation in strong sunlight:

• Mount the device in the shade.

• Avoid direct sunlight, particularly in warmer climatic regions.

• Use a weather protection cover, which can be ordered as an accessory

26 Endress+Hauser

Page 27

Liquiphant FTL51B

Storage temperature

Humidity

Operating altitude

Climate class

Degree of protection

–40 to +80 °C (–40 to +176 °F) optional: –52 °C (–62 °F), –60 °C (–76 °F)

Operate up to 100 %. Do not open in a condensing atmosphere.

As per IEC 61010-1 Ed.3:

• Up to 2 000 m (6 600 ft) above sea level

• Can be extended to 3 000 m (9 800 ft) above sea level if overvoltage protection is used

As per IEC 60068-2-38 test Z/AD

For housing with electrical connection

M20 coupling, plastic

• Single-chamber, plastic: IP66/67 NEMA type 4X

• Single-chamber and dual-chamber, aluminum: IP66/68 NEMA type 4X/6P

• Single-chamber 316L, cast: IP66/68 NEMA type 4X/6P M20 coupling, nickel-plated brass

Single-chamber and dual-chamber, aluminum: IP66/68 NEMA type 4X/6P M20 coupling, 316L

• Single-chamber and dual-chamber, aluminum: IP66/68 NEMA type 4X/6P

• Single-chamber 316L, cast: IP66/68 NEMA type 4X/6P Thread M20

• Single-chamber, plastic: IP66/67 NEMA type 4X

• Single-chamber and dual-chamber, aluminum: IP66/68 NEMA type 4X/6P

• Single-chamber 316L, cast: IP66/68 NEMA type 4X/6P Thread G ½

• Single-chamber, plastic: IP66/67 NEMA type 4X

• Single-chamber and dual-chamber, aluminum: IP66/68 NEMA type 4X/6P

• Single-chamber 316L, cast: IP66/68 NEMA type 4X/6P Thread NPT ½

• Single-chamber, plastic: IP66/67 NEMA type 4X

• Single-chamber 316L, cast: IP66/68 NEMA type 4X/6P Thread NPT ¾

• Single-chamber and dual-chamber, aluminum: IP66/68 NEMA type 4X/6P

• Single-chamber 316L, cast: IP66/68 NEMA type 4X/6P M12 plug

• Single-chamber, plastic: IP66/67 NEMA type 4X

• Single-chamber, aluminum: IP66/67 NEMA type 4X

• Single-chamber 316L, cast: IP66/67 NEMA type 4X

Vibration resistance

Shock resistance

Mechanical load Lateral loading capacity

Electromagnetic compatibility

As per IEC60068-2-64-2009 a(RMS) = 50 m/s², f = 5 to 2 000 Hz , t = 3 planes x 2 h

For increased oscillations or vibrations, the additional option of order code "Application" option "B" 100 bar (1 450 psi) process pressure is recommended.

As per IEC60068-2-27-2008: 300 m/s² [=30 gn] + 18ms

 Special mounting instructions

• Electromagnetic compatibility as per EN 61326 series and NAMUR recommendation EMC (NE21).

• The requirements of EN 61326-3-1 for the safety function (SIL) are fulfilled. Details are available in the supplementary Functional Safety Manual.

Endress+Hauser 27

Page 28

Process

+150

+302

-50

-58

100

1450

928

032

[bar]

[°C]

[psi]

[°F]

Liquiphant FTL51B

Process temperature range

Thermal shock

Process pressure range

–50 to +150 °C (–58 to +302 °F) Pay attention to the pressure and temperature dependence (see the "Sensor process pressure range"

section )

≤ 120 K/s

A0038268

 29 Process temperature FTL51B

1 Permitted pressure rating if the "100 bar (1 450 psi)" option is selected. For exceptions, see the "Process

connections" section. Canadian CRN approval: more details on the maximum pressure values are available in the download area of the product page under "www.endress.com".

The maximum pressure for the measuring device is dependent on the lowest-rated element, with regard to pressure, of the selected components. This means that it is necessary to pay attention to the process connection as well as the sensor.

‣ ‣ ‣

Permitted pressure values for flanges at higher temperatures can be found in the following standards:

• pR EN 1092-1: 2005 With regard to its stability-temperature property, the material 1.4435 is identical to 1.4404, which is classed as 13E0 in EN 1092-1 Tab. 18. The chemical composition of the two materials can be identical.

• ASME B 16.5

• JIS B 2220

The lowest value from the derating curves of the device and of the selected flange applies in each case.

Test pressure Gauge pressure

Process pressure range of the sensors

• PN: 64 bar (928 psi) at max. 150 °C (302 °F) Ordering information: Product Configurator, order code for "Application" option "A"

• PN: 100 bar (1 450 psi) at max. 150 °C (302 °F) Ordering information: Product Configurator, order code for "Application" option "B"

• PN = 64 bar (928 psi): test pressure = 1.5 · PN maximum 100 bar (1 450 psi) depending on process connection selected

• Membrane burst pressure at 200 bar (2 900 psi)

WARNING

For pressure specifications, see the "Mechanical construction" section. The measuring device must be operated only within the specified limits! The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS". The abbreviation "PS" corresponds to the MWP (maximum working pressure) of the measuring device.

28 Endress+Hauser

Page 29

Liquiphant FTL51B

• PN = 100 bar (1 450 psi): test pressure = 1.5 · PN maximum 150 bar (2 175 psi) depending on process connection selected

• Membrane burst pressure at 400 bar (5 800 psi)

The instrument function is limited during the pressure test.

The mechanical integrity is guaranteed at pressures up to 1.5 times the process nominal pressure (PN).

Density

Pressure tightness

• Switch position > 0.7 g/cm3 = order configuration Standard setting for liquids with a density > 0.7 g/cm

• Switch position > 0.5 g/cm3 = can be configured via DIP switch For liquids with a density > 0.5 g/cm3 to < 0.8 g/cm

• Order option: 0.4 g/cm3 (not for devices with SIL) For liquids with a density > 0.4 g/cm3 and density < 0.6 g/cm

If this option has been selected, the density setting is always set to 0.4 g/cm3. This setting can no longer be altered.

Up to vacuum

In vacuum evaporation systems, the density of the liquids can drop to a very low value: select density setting 0.4.

Endress+Hauser 29

Page 30

Mechanical construction

For the dimensions, see the Product Configurator: www.endress.com

Search for product → click "Configuration" to the right of the product image → after configuration click "CAD"

The following dimensions are rounded values. For this reason, they may deviate slightly from the dimensions given on www.endress.com.

Design, dimensions Device height

The device height is calculated from the following components:

• Housing including cover

• Optional spacer (temperature spacer or pressure-tight feedthrough (second line of defense))

• Pipe extension, short pipe or compact version

• Process connection The individual heights of the components can be found in the following sections:

• Determine the height of the device and add the individual heights.

• Take into consideration the installation distance (space that is used to install the device).

Liquiphant FTL51B

A0036841

 30 Components for determining the height of the device

A Housing B Depending on the process connection, up to 60 mm (2.36 in). For details, see Product Configurator. C Process connections D Process connections E Pipe extension F Short pipe G Installation clearance

30 Endress+Hauser

Page 31

Liquiphant FTL51B

!94 (3.7)

123 (4.84)

101 (3.98)

!101 (3.98)

118 (4.65)

140 (5.51)

!101 (3.98)

103 (4.06)

126 (4.96)

136 (5.35)

Dimensions Housing

The housings can be aligned. On metal housings, the alignment of the housing can also be fixed by means of the locking screw. A tall cover with viewing window must be used for devices that are operated with the Bluetooth or LED module.

 31 Single-chamber housing, plastic; Product Configurator: order code for "Housing; material", option A. Unit

A0035911

of measurement mm (in)

A0039401

 32 Single-chamber housing, aluminum for Ex d/XP approval; Product Configurator: order code for "Housing;

material", option B. Unit of measurement mm (in)

A0039402

 33 Single-chamber housing, aluminum; Product Configurator: order code for "Housing; material", option B.

Unit of measurement mm (in)

1 Cover for dust ignition-proof approval

Endress+Hauser 31

Page 32

Liquiphant FTL51B

!101 (3.98)

118 (4.65)

131 (5.16)

163 (6.42)

!147 (5.79)

101 (3.98)

140 (5.51)

 34 Single-chamber housing, 316L, cast for Ex d/XP area; Product Configurator: order code for "Housing;

material", option C. Unit of measurement mm (in)

A0035590

A0035591

 35 Dual-chamber housing, L-shaped, aluminum for Ex d/XP area; Product Configurator: order code for

"Housing; material", option M. Unit of measurement mm (in)

Ground terminal

• Ground terminal inside the housing, max. conductor cross-section 2.5 mm2 (14 AWG)

• Ground terminal outside the housing, max. conductor cross-section 4 mm2 (12 AWG)

• Safety extra-low voltage used to supply power to electronic inserts; do not connect protective ground.

Cable glands

Cable diameter

• Plastic: ø5 to 10 mm (0.2 to 0.38 in)

• Nickel-plated brass: ø7 to 10.5 mm (0.28 to 0.41 in)

• Stainless steel: ø7 to 12 mm (0.28 to 0.47 in)

When delivered:

• 1 cable gland installed

• 1 cable gland sealed with dummy plug

A second cable gland (not installed) is also included in the scope of delivery of the relay electronics. Exceptions: With Ex d/XP, only threaded entries are permitted. With a Japanese Ex d approval, a special cable gland is enclosed.

Temperature spacer (optional)

32 Endress+Hauser

 36 Temperature spacer, pressure-tight feedthrough (1). Unit of measurement mm (in)

A0036845

Page 33

Liquiphant FTL51B

1 2

Temperature spacer Product Configurator, order code for "Sensor design", option MR Provides sealed insulation for the vessel and a normal ambient temperature for the housing

Pressure-tight feedthrough (second line of defense) Product Configurator, order code for "Sensor design", option MS In the event of damage to the sensor, protects the housing from exposure to vessel pressures up to 100 bar (1 450 psi). Provides sealed insulation for the vessel and a normal ambient temperature for the housing

Probe design

• Compact

• Material: 316L or Alloy C

• Sensor length L: depends on process connection See "Process connections" section: thread G, ASME B1.20.3 MNPT, EN10226 R, Tri-Clamp

A0036848

 37 Compact, sensor length L

• Pipe extension

• Material: 316L, sensor length L: 117 to 6 000 mm or 4.7 to 236 in

• Material: Alloy C, sensor lengths L: 148 to 3 000 mm or 5.9 to 118 in

 38 Pipe extension, sensor length L

1 G ¾, G 1 2 NPT ¾, NPT 1, R ¾, R 1 3 Flange, Tri-Clamp

• Short pipe

• Material: 316L, sensor length L: depends on process connection

• Material: Alloy C, sensor length L: depends on process connection

• Flange = 115 mm (4.53 in)

• Thread G ¾ = 115 mm (4.53 in)

• Thread G 1 = 118 mm (4.65 in)

• Thread NPT, R = 99 mm (3.9 in)

• Tri-Clamp = 115 mm (4.53 in)

A0036860

Endress+Hauser 33

Page 34

1 2

 39 Short pipe, sensor length L

40 (1.57)

17 (0.67)

17.2 (0.68)

1.5 (0.06)

14 (0.55)

50.5 (2.19)

66.5 (2.62)

80 (3.15)

61.3 (2.41)

1 G ¾, G 1 2 NPT ¾, NPT 1, R ¾, R 1 3 Flange, Tri-Clamp

Tuning fork

Liquiphant FTL51B

A0036861

 40 Tuning fork. Unit of measurement mm (in)

Process connections

Thread ISO228 G for installing in weld-in adapter

G ¾, G 1 suitable for installation in weld-in adapter

• Material: 316L

• Pressure rating, temperature: ≤ 40 bar (580 psi), ≤ 100 °C (212 °F)

• Pressure rating, temperature: ≤ 25 bar (363 psi), ≤ 150 °C (302 °F)

• Weight: 0.2 kg (0.44 lb)

• Accessory: weld-in adapter The weld-in adapter is not included in the scope of delivery.

A0035549

 41 Thread ISO228 G ¾. Unit of

measurement mm (in)

 42 Thread ISO228 G 1. Unit of

measurement mm (in)

A0038269

A0035551

34 Endress+Hauser

Page 35

Liquiphant FTL51B

50.5 (2.19)

66.5 (2.62)

69 (2.72)

50.5 (1.99)

50.5 (2.19)

71.5 (2.81)

50.5 (2.19)

69 (2.72)

50.5 (2.19)

66 (2.62)

50.5 (2.19)

69 (2.72)

50.5 (1.99)

66.5 (2.62)

64 (2.52)

66.5 (2.62)

Thread ISO228 G with flat seal

 43 Thread ISO228 G ¾. Unit of

measurement mm (in)

Thread ASME B1.20.3, MNPT

 45 Thread ASME B1.20.3, MNPT ¾. Unit of

measurement mm (in)

Thread EN10226, R

A0035549

 44 Thread ISO228 G 1. Unit of

measurement mm (in)

A0038274

 46 Thread ASME B1.20.3, MNPT 1. Unit of

measurement mm (in)

A0037756

A0038275

A0038272

 47 Thread EN10226, R ¾. Unit of

measurement mm (in)

 48 Thread EN10226, R 1. Unit of

measurement mm (in)

Tri-Clamp

Version ISO2852 DN25-38 (1 to 1-½), DIN32676 DN25-40

• Material: 316L

• Pressure rating: ≤ 25 bar (363 psi)

• Temperature: ≤ 150 °C (302 °F)

• Weight: 0.1 (0.22) The maximum temperature and the maximum pressure are dependent on the clamping ring

and the seal used. The lowest value applies in each case.

A0035555

 49 Tri-Clamp 1 to 1-½. Unit of

measurement mm (in)

 50 Tri-Clamp 2. Unit of measurement mm (in)

Endress+Hauser 35

A0038273

A0037671

Page 36

Liquiphant FTL51B

66.5 (2.62)

Sensor dimensions in the case of flanges

AlloyC22-plated flanges are available for higher chemical resistance. The flange carrier material is made of 316L and is welded to an AlloyC22 disk.

 51 Example with flange. Unit of measurement mm (in)

ASME B16.5 flanges, RF

Pressure rating Type Material Weight

kg (lb)

Cl.150 NPS 1" 316/316L 1 (2.21)

Cl.150 NPS 1-¼" 316/316L 1.2 (2.65)

Cl.150 NPS 2" 316/316L 2.4 (5.29)

Cl.150 NPS 2" AlloyC22>316/316L 2.4 (5.29)

Cl.150 NPS 1-½" 316/316L 1.5 (3.31)

Cl.150 NPS 3" 316/316L 4.9 (10.8)

Cl.150 NPS 4" 316/316L 7 (15.44)

Cl.300 NPS 1-¼" 316/316L 2 (4.41)

Cl.300 NPS 1-½" 316/316L 2.7 (5.95)

Cl.300 NPS 2" 316/316L 3.2 (7.06)

Cl.300 NPS 3" 316/316L 6.8 (14.99)

Cl.300 NPS 3" AlloyC22>316/316L 6.8 (14.99)

Cl.300 NPS 4" 316/316L 11.5 (25.6)

Cl.600 NPS 2" 316/316L 4.2 (9.26)

Cl.600 NPS 3" 316/316L 6.8 (14.99)

A0035554

ASME B16.5 flanges, FF

Pressure rating Type Material Weight

kg (lb)

Cl.150 NPS 1" 316/316L 1 (2.21)

Cl.150 NPS 2" 316/316L 2.4

Cl.300 NPS 1-½" 316/316L 2.7

Cl.300 NPS 2" 316/316L 3.2

36 Endress+Hauser

Page 37

Liquiphant FTL51B

ASME B16.5 flanges, RJF

Pressure rating Type Material Weight

kg (lb)

Cl.300 NPS 2" 316/316L 3.2 (7.06)

Cl.300 NPS 4" 316/316L 11.5 (25.6)

Cl.600 NPS 2" 316/316L 4.2 (9.26)

Cl.600 NPS 3" 316/316L 6.2 (13.67)

EN flanges EN 1092-1, A

Pressure rating Type Material Weight

kg (lb)

PN6 DN32 316L (1.4404) 1.2 (2.65)

PN6 DN40 316L (1.4404) 1.4 (3.09)

PN6 DN50 316L (1.4404) 1.6 (3.53)

PN10/16 DN80 316L (1.4404) 4.8 (10.58)

PN10/16 DN100 316L (1.4404) 5.6 (12.35)

PN25/40 DN25 316L (1.4404) 1.3 (2.87)

PN25/40 DN32 316L (1.4404) 2.0 (4.41)

PN25/40 DN40 316L (1.4404) 2.4 (5.29)

PN25/40 DN50 316L (1.4404) 3.2 (7.06)

PN25/40 DN65 316L (1.4404) 4.3 (9.48)

PN25/40 DN80 316L (1.4404) 5.9 (13.01)

PN25/40 DN100 316L (1.4404) 7.5 (16.54)

PN40 DN50 316L (1.4404) 3.2 (7.06)

PN100 DN50 316L (1.4404) 5.5 (12.13)

EN flanges EN 1092-1, B1

Pressure rating Type Material Weight

kg (lb)

PN6 DN32 316L (1.4404) 1.2 (2.65)

PN6 DN50 316L (1.4404) 1.6 (3.53)

PN6 DN50 AlloyC22>316L 1.6 (3.53)

PN10/16 DN100 316L (1.4404) 5.6 (12.35)

PN10/16 DN100 AlloyC22>316L 5.6 (12.35)

PN25/40 DN25 316L (1.4404) 1.4 (3.09)

PN25/40 DN25 AlloyC22>316L 1.4 (3.09)

PN25/40 DN50 316L (1.4404) 3.2 (7.06)

PN25/40 DN50 AlloyC22>316L 3.2 (7.06)

PN25/40 DN80 316L (1.4404) 5.9 (13.01)

PN25/40 DN80 AlloyC22>316L 5.2 (11.47)

PN100 DN50 316L (1.4404) 5.5 (12.13)

Endress+Hauser 37

Page 38

Liquiphant FTL51B

EN flanges EN 1092-1, C

Type Material Pressure rating Weight

kg (lb)

DN32 316L (1.4404) PN6 1.2 (2.65)

DN50 316L (1.4404) PN25/40 3.2 (7.06)

EN flanges EN 1092-1, D

Type Material Pressure rating Weight

kg (lb)

DN32 316L (1.4404) PN6 1.2 (2.65)

DN50 316L (1.4404) PN25/40 3.2 (7.06)

EN flanges EN 1092-1, E

Type Material Pressure rating Weight

kg (lb)

DN32 316L (1.4404) PN6 1.2 (2.65)

DN50 316L (1.4404) PN25/40 3.2 (7.06)

JIS flanges B2220

Pressure rating Type Material Weight

kg (lb)

10K 10K 25A 316L (1.4404) 1.3 (2.87)

10K 10K 40A 316L (1.4404) 1.5 (3.31)

10K 10K 50A 316L (1.4404) 1.7 (3.75)

10K 10K 50A AlloyC22>316L 1.7 (3.75)

10K 10K 80A 316L (1.4404) 2.2 (4.85)

10K 10K 100A 316L (1.4404) 2.8 (6.17)

Process connection, sealing surface

• Thread ISO228, G

• Thread ASME, MNPT

• Thread EN10226, R

• Flange ASME B16.5, RF (Raised Face)

• Flange ASME B16.5, FF (Flat Face)

• Flange ASME B16.5, RJF (Ring-Joint Face)

• Flange EN1092-1, Form A

• Flange EN1092-1, Form B1

• Flange EN1092-1, Form C

• Flange EN1092-1, Form D

• Flange EN1092-1, Form E

• Flange JIS B2220, RF (Raised Face)

• Flange HG/T20592, RF (raised face), under development

• Flange HG/T20615, RF (raised face), under development

• Flange HG/T20615, RJ (ring joint), under development Other

Weight

See the specific section.

38 Endress+Hauser

Page 39

Liquiphant FTL51B

Materials Materials in contact with process

• Process connection: 316L (1.4404 or 1.4435)

• Pipe extension: 316L (1.4404 or 1.4435)

• Flat seal for process connection G ¾ or G 1: fiber-reinforced elastomer seal, asbestos-free as per

DIN 7603

• For flanges,  "Mechanical construction" section

• Flange plating: Alloy C22 (2.4602)

• Tuning fork: 316L (1.4435), optional (Alloy C22)

Seals

Seal included in delivery: Metrical threads G ¾, G 1 standard, flat seal as per DIN7603

Seal not included in delivery:

• Tri-Clamp

• Flanges

• R and NPT thread

• Metrical threads G ¾, G 1 for installation in weld-in adapter

Materials not in contact with process

Plastic housing

• Housing: PBT/PC

• Dummy cover: PBT/PC

• Transparent cover: PBT/PC or PA12

• Cover seal: EPDM

• Potential equalization: 316L

• Seal under potential equalization: EPDM

• Plug: PBT-GF30-FR

• M20 cable gland: PA

• Seal on plug and cable gland: EPDM

• Adapter as substitute for cable glands: 316L

• TAG sign: plastic film, metal, or provided by customer

Aluminum housing

• Housing: EN AC 44300 aluminum

• Dummy cover: EN AC 44300 aluminum

• Cover with sight glass: EN AC 44300 aluminum, PC Lexan 943A synthetic glass

Cover with viewing window made of polycarbonate, optionally available to order. For Ex d applications, the sight glass is made from borosilicate.

• Cover seal materials: HNBR

• Cover seal materials: FVMQ (in low-temperature version only)

• TAG sign: plastic film, stainless steel, or provided by customer

• M20 cable glands: Select material (stainless steel, nickel-plated brass, polyamide)

Stainless steel housing

• Housing: stainless steel AISI 316L (1.4409)

• Cover: AISI 316L (1.4409)

• Cover seal materials: FVMQ (in low temperature version only)

• Cover seal materials: HNBR

• TAG sign: plastic film, stainless steel, or provided by customer

• M20 cable glands: Select material (stainless steel, nickel-plated brass, polyamide)

Surface roughness

The roughness of the surface in contact with the process is Ra < 3.2 µm (126 μin).

Endress+Hauser 39

Page 40

Operability

MIN

>0,7

MAX

>0,5

COM

U = 9...20 V DC

3 5 876

L-L+

A B

MAX

MIN

Liquiphant FTL51B

Operating concept

Elements on the electronic insert

• Operation with button and DIP switches on the electronic insert

• Display with optional Bluetooth module and SmartBlue (app) via Bluetooth® wireless technology

• Indication of switching status and operational status with optional LED module (lights visible from the outside)

• For plastic housing and aluminum housing (standard and Ex d) in conjunction with the DC-PNP

and relay electronics

• Ordering information: Product Configurator, order code for "Display; operation" option "B"

A0037705

 52 Example of electronic insert FEL64DC

1 LED, red, for warning or alarm 2 LED, yellow, switch status 3 LED, green, operational status (device is on) 4 Test button, activates functional test 5 DIP switch for configuring density, 0.7 or 0.5 6 Relay contact terminals 7 Power supply terminals 8 COM interface for additional modules (LED module, Bluetooth module) 9 DIP switch for configuring MAX/MIN safety mode

Terminals

Terminals for cable cross-section up to 2.5 mm2 (14 AWG). Use ferrules for the wires.

Local operation Operation at electronic insert

MAX/MIN safety mode

 53 Switch position on the electronic insert for MAX/MIN safety mode

A MAX (maximum safety mode) B MIN (minimum safety mode)

• Toggle switch on electronic insert for minimum/maximum quiescent current safety

• MAX = Maximum safety: When tuning fork is covered, the output switches in the direction of demand. Use this for overfill protection, for example.

• MIN = Minimum safety: When the tuning fork is uncovered, the output switches in the direction of demand. Use this for dry-running protection of pumps, for example.

40 Endress+Hauser

A0033470

Page 41

Liquiphant FTL51B

ρ > 0.7

ρ > 0.5

>0,5

COM

NL1

MIN

MAX

>0,7

>0,5

MIN

MAX

>0,7

Ser. no.:

Order code:

Ext. ord. cd.:

Density switchover

 54 Switch position on electronic insert for density

Factory setting for density: 0.7

• Switch position > 0.7 g/cm3 = order configuration Standard setting for liquids with density > 0.7 g/cm

• Switch position > 0.5 g/cm3 = can be configured via DIP switch For liquids with density > 0.5 g/cm3 to < 0.8 g/cm

• Order option: 0.4 g/cm3 (not for devices with SIL) For liquids with density > 0.4 g/cm3 and density < 0.6 g/cm

If this option has been selected, the density setting is always set to 0.4 g/cm3. This setting can no longer be altered.

Functional test using the button on the electronic insert

A0033471

 55 Position button for functional test

• The functional test must be performed when the status is OK. OK status: MAX safety and sensor uncovered or MIN safety and sensor covered.

• For proof testing in safety systems in accordance with SIL or WHG, pay attention to the information in the safety manual.

Functional test of the electronic switch with a test magnet

Without opening the device, hold the test magnet against the marking on the nameplate. It is possible to simulate the function test for the following versions: FEL62, FEL64, FEL64DC, FEL68

 56 Function test with test magnet

Local display LED module VU120 (optional)

The LED module lights up very brightly, can be easily seen from a distance and can be connected to the following electronic inserts: FEL62, FEL64, FEL64 DC

For each MAX/MIN setting, the sensor status can be identified by means of the LEDs, which light up green, yellow and red.

During the functional test, all three LED colors flash one after the other in the form of a chaser light.

A0037132

A0033419

Endress+Hauser 41

Page 42

Remote interrogation Heartbeat diagnostics and verification with Bluetooth® wireless technology

Access via Bluetooth® wireless technology

 57 Remote operation via Bluetooth® wireless technology

1 Smartphone or tablet with SmartBlue (app) 2 Device with optional Bluetooth module

Bluetooth module VU121 (optional)

Functions

• Connection via COM interface: Bluetooth module for device diagnostics via a smartphone app or tablet app

• Display the battery status via app when used with electronic insert FEL68 (NAMUR)

• User guidance (wizard) for SIL/WHG proof testing

• Visible in the livelist 10 seconds after the Bluetooth search commences

• Data can be read from the Bluetooth module 60 seconds after the supply voltage is switched on

• Display of the current vibration frequency and the switching state of the device

The yellow LED flashes when the Bluetooth module is connected to another Bluetooth device, e. g. mobile phone.

Liquiphant FTL51B

A0033411

Heartbeat Technology

Heartbeat Technology module

Heartbeat Verification Performs a verification of the current device status upon request and generates a Heartbeat Technology verification report showing the result of the verification.

Heartbeat Monitoring Continuously provides device and/or process data for an external system. Analysis of this data forms the basis for process optimization and predictive maintenance.

Technical data

• Approval: intrinsically safe Ex ia, IS or ec/ic

• Maximum free-field range 50 m (165 ft)

• Operation radius with intervisibility 10 m (33 ft) around the device

For documentation on radio approvals, see the Endress+Hauser website: www.endress.com → Downloads.

Diagnostic information Heartbeat Technology

The electronics module and the tuning fork are checked using Heartbeat Technology, and a verification of the Liquiphant is performed. The switch output is not changed during this test. The test can be performed at any time and does not influence the switch output in the safety circuit. In the case of proof-testing, the SmartBlue app supports users in every step of the test. The switch

42 Endress+Hauser

Page 43

Liquiphant FTL51B

output is also switched during this test. During the proof-test, alternative monitoring measures must be taken to ensure process safety.

Proof test

During the proof test, the SmartBlue app provides support for each individual stage of the test (proof-test wizard). The switch output is also switched during this test. During the proof test, alternative monitoring measures must be taken to ensure process safety.

Evaluation of the vibration frequency

If the vibration frequency exceeds the upper warning frequency, a warning is displayed. A warning is activated when the fork becomes corroded, for example. The switch output remains in the current state. The warning is displayed in the SmartBlue app and output in the Heartbeat Technology protocol. When a warning occurs, it is necessary to check the Liquiphant sensor.

The current oscillation frequency must be in the range between the upper and lower alarm frequency. If the current oscillation frequency is above the upper alarm frequency or below the lower alarm frequency, an alarm is output. The output switches to the safety-oriented state.

Certificates and approvals

CE mark

RCM-Tick marking

Ex approval

The certificates, approvals and other documentation currently available can be accessed as follows: Endress+Hauser website: www.endress.com → Downloads.

The measuring system complies with the statutory 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.

The supplied product or measuring system meets the ACMA (Australian Communications and Media Authority) requirements for network integrity, interoperability, performance characteristics as well as health and safety regulations. Here, especially the regulatory arrangements for electromagnetic compatibility are met. The products are labelled with the RCM- Tick marking on the name plate.

A0029561

All explosion protection data is listed in separate documentation which is available from the download area. The Ex documentation is supplied as standard with all Ex-systems.

Explosion-protected smartphones and tablets

If used in hazardous areas, mobile end devices with an Ex approval must be used.

Overfill protection

Functional safety

Before mounting the device, observe the documentation from the WHG approvals (German Federal Water Act).

Approved for overfill protection and leakage detection.

Ordering information: Product Configurator, order code for "Additional approval", option "LD"

The Liquiphant has been developed according to the IEC 61508 standard. The device is suitable for overfill protection and dry-running protection up to SIL 2 (SIL 3 with homogeneous redundancy). For a detailed description of the safety functions with the Liquiphant, settings and functional safety data, see the "Functional Safety Manual" on the Endress+Hauser website: www.endress.com → Downloads.

Ordering information: Product Configurator, order code for "Additional approval", option "LA"

Endress+Hauser 43

Page 44

Liquiphant FTL51B

Marine approvals

• ABS (American Bureau of Shipping), option "LF"

• GL (Germanischer Lloyd)/DNV (Det Norske Veritas), option "LJ"

• LR (Lloyd's Register) marine approval, option "LG"

• BV (Bureau Veritas) marine approval, option "LH"

Ordering information: Product Configurator, order code for "Additional approval", for option see items listed

Radio approval

Further information and the documentation currently available can be found on the Endress+Hauser website: www.endress.com → Downloads.

CRN approval

Versions with a CRN approval (Canadian Registration Number) are listed in the corresponding registration documents. CRN-approved devices are marked with a registration number.

Any restrictions regarding the maximum process pressure values are listed on the CRN certificate.

Ordering information: Product Configurator, order code for "Service", option "17"

Inspection certificates Test, certificate, declaration

The following documents can be ordered:

• Inspection certificate 3.1, EN10204 (material certificate, wetted parts)

• NACE MR0175 / ISO 15156 (wetted parts), declaration

• NACE MR0103 / ISO 17945 (wetted parts), declaration

• AD 2000 (wetted parts), declaration, excluding cast parts

• ASME B31.3 Process Piping, declaration

• Pressure test, internal procedure, test report

• Helium leak test, internal procedure, test report

• Material identification check (PMI), internal procedure (wetted parts), test report

• Penetrant testing AD2000-HP5-3(PT), wetted/pressurized metal parts, inspection certificate

• Penetrant testing ISO23277-1 (PT), wetted/pressurized metal parts, inspection certificate

• Penetrant testing ASME VIII-1 (PT), wetted/pressurized metal parts, inspection certificate

• Welding documentation, wetted/pressurized seams

Ordering information: Product Configurator, order code for "Additional approval", option "LS"

Pressure Equipment Directive

Process seal as per ANSI/ISA

12.27.01

The documentation currently available can be found on the Endress+Hauser- website:

www.endress.com → Downloads or using the serial number of the device under Online Tools in

the Device Viewer.

Service

• Cleaned of oil+grease (wetted)

• PWIS-free (paint-wetting impairment substances)

• Switching delay setting to be spec.

• Setting for MIN safety mode

• Default density setting > 0.4 g/cm

• Default density setting > 0.5 g/cm

• Product documentation on paper (test, certificate, declaration available for selection)

Pressure equipment with allowable pressure ≤ 200 bar (2 900 psi)

Pressure instruments with a flange and threaded boss that do not have a pressurized housing do not fall within the scope of the Pressure Equipment Directive, irrespective of the maximum allowable pressure.

Reasons:

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.

North American practice for the installation of process seals. In accordance with ANSI/ISA 12.27.01, Endress+Hauser devices are designed as either single seal or dual seal devices with a warning message. This allows the user to waive the use of - and save the cost of installing - an external

44 Endress+Hauser

Page 45

Liquiphant FTL51B

secondary process seal in the protective conduit as required in ANSI/NFPA 70 (NEC) and CSA 22.1 (CEC). These instruments comply with the North-American installation practice and provide a very safe and cost-saving installation for pressurized applications with hazardous fluids. More information is provided in the Safety Instructions (XA) for the relevant device.

Aluminum, stainless steel and plastic housing are approved as single-seal devices.

China RoHS symbol

RoHS

Additional certification EAC conformity

ASME B 31.3

China RoHS 1, regulation SJ/T 11363-2006: The measuring system complies with the substance restrictions of the Restriction on Hazardous Substances Directive .

The measuring system complies with the substance restrictions of the Restriction on Hazardous Substances Directive 2011/65/EU (RoHS 2).

The measuring system meets the legal requirements of the applicable EAC guidelines. These are listed in the corresponding EAC Declaration of Conformity together with the standards applied.

Endress+Hauser confirms successful testing of the device by affixing to it the EAC mark.

Design and materials in accordance with ASME B31.3. The welds are through-penetration welded and meet the requirements of the ASME Boiler and Pressure Vessel Code, Section IX and EN ISO 15614-1.

Ordering information

Detailed ordering information is available from the following sources:

• In the Product Configurator on the Endress+Hauser website: www.endress.com → Click "Corporate"

-> Select country → Click "Products"→ Select product using the filters and search field → Open product page → The "Configuration" button to the right of the product image opens the Product Configurator.

• Endress+Hauser Sales Center: www.addresses.endress.com

Product Configurator - the tool for individual product configuration

• Up-to-the-minute configuration data

• Depending on the device: Direct input of measuring point-specific information such as measuring range or operating language

• Automatic verification of exclusion criteria

• Automatic creation of the order code and its breakdown in PDF or Excel output format

• Ability to order directly in the Endress+Hauser Online Shop

TAG Measuring point (TAG)

The device can be ordered with a tag name.

Position of the tag marking

Choose from the following in the additional specification:

• Tag plate, stainless steel

• Plastic film

• Supplied label/plate

• RFID TAG

• RFID TAG + tag plate stainless steel

• RFID TAG + plastic film

• RFID TAG + supplied label/plate

Definition of the tag name

Specify in the additional specification: 3 lines containing up to 18 characters each The specified tag name appears on the selected label and/or on the RFID TAG.

Presentation in the SmartBlue app

The first 32 characters of the tag name The tag name can always be changed specifically for the measuring point via Bluetooth.

Endress+Hauser 45

Page 46

Application packages

Ordering information

• Product Configurator, order code for "Application package", option EH "Heartbeat Verification + Monitoring" For this, use of the optional Bluetooth module is required.

• For NAMUR: order code for "Accessory mounted", option NG "Prepared for Heartbeat Verification + Monitoring + Bluetooth" The Bluetooth module must be ordered separately in this case.

Heartbeat Technology Heartbeat Technology module

Heartbeat Verification Performs a verification of the current device status upon request and generates a Heartbeat Technology verification report showing the result of the verification.

Heartbeat Monitoring Continuously provides device and/or process data for an external system. Analysis of this data forms the basis for process optimization and predictive maintenance.

Liquiphant FTL51B

Heartbeat Verification

The "Heartbeat Verification" module includes the Heartbeat Verification Wizard, which performs a verification of the current device condition and generates the Heartbeat Technology verification report:

• The wizard can be used via the SmartBlue app.

• The wizard guides the user through the entire process of generating the verification report.

• The operating hours counter and minimum/maximum temperature indicator (peakhold) are displayed.

• In the event of an increase in the oscillation frequency of the fork, a corrosion warning will appear.

• The order configuration of the oscillation frequency in air is indicated in the verification report. An increased oscillation frequency indicates the presence of corrosion. A reduced oscillation frequency indicates that there is buildup present or that the sensor is covered by the medium. Deviations in the oscillation frequency compared to the oscillation frequency on delivery may occur due to the process temperature and process pressure.

Proof testing for SIL/WHG devices

The "SIL Prooftest", "WHG Prooftest" or "SIL/WHG Prooftest" module includes a wizard for the proof testing that is required at appropriate intervals for the following applications: SIL (IEC61508/ IEC61511), WHG (German Federal Water Act):

• The wizard can be used via the SmartBlue app.

• The wizard guides the user through the entire process of generating the verification report.

• The verification report can be saved as a PDF file.

Accessories

Device-specific accessories Test magnet

Order number: 71437508

1) Available only for devices with SIL or WHG approval

46 Endress+Hauser

Page 47

Liquiphant FTL51B

81 (3.19)

103 (4.06)

102.5 (4.04)

73.5 (2.89)

135 (5.31)

229.4 (9.03)

136.7 (5.38)

65 (2.56)

140 (5.51) 32 (1.26)

115 (4.53)

122 (4.8)

A0039209

 58 Test magnet

Weather protection cover for dual-compartment housing, aluminum

• Material: stainless steel 316L

• Order number: 71438303

A0039231

 59 Weather protection cover for dual-compartment housing, aluminum. Unit of measurement mm (in)

Weather protection cover for single-compartment housing, metal

• Material: plastic

• Order number: 71438291

A0038280

 60 Weather protection cover for single-compartment housing, metal. Unit of measurement mm (in)

Plug-in jack

The plug-in jacks listed are suitable for use in the temperature range –25 to +70 °C (–13 to +158 °F).

Plug-in jack M12 IP69

• Terminated at one end

• Elbowed 90°

• 5 m (16 ft) PVC cable (orange)

• Slotted nut 316L (1.4435)

• Body: PVC (orange)

• Order number: 52024216

Endress+Hauser 47

Page 48

27.5 (1.08)

40³

(1.57)

 61 Plug-in jack M12 IP69. Unit of measurement mm (in)

27.5

(1.08)

40³

(1.57)

Contains

FCC ID:

IC:

Plug-in jack M12 IP67

• Elbowed 90°

• 5 m (16 ft)PVC cable (gray)

• Slotted nut Cu Sn/Ni

• Body: PUR (blue)

• Order number: 52010285

Liquiphant FTL51B

A0023713

 62 Plug-in jack M12 IP67. Unit of measurement mm (in)

Additional modules

If the Liquiphant is retrofitted with the Bluetooth module or the LED module, it is also necessary to order a tall housing cover with sight glass. The cover depends on the housing and approval of the device.

More detailed information is available:

• Product Configurator on the Endress+Hauser webpage: www.endress.com

• Endress+Hauser Sales Center www.addresses.endress.com

Bluetooth module VU121 (optional)

 63 Bluetooth module VU121

A0022292

A0039257

The Bluetooth module can be connected to the following electronic inserts via the COM interface: FEL61, FEL62, FEL64, FEL64DC, FEL67, FEL68 (NAMUR 2-wire).

48 Endress+Hauser

Page 49

Liquiphant FTL51B

22 (0.87)

18 (0.71)

G 1 A

(1 NPT)

G 1½ A

(1½ NPT)

M6 (3x)

19 (0.75)

• Bluetooth module with battery for use in conjunction with NAMUR electronics FEL68 electronic insert Order number: 71437381

• Bluetooth module without battery for use in conjunction with FEL61, FEL62, FEL64, FEL64DC and FEL67 electronic inserts Order number: 71437383

When using the device with the electronic insert FEL68 (2-wire NAMUR), the Bluetooth module must be ordered separately, including the required battery.

Product Configurator, order code for "Accessory mounted", option NG "Prepared for Heartbeat Verification + Monitoring + Bluetooth".

LED module VU120 (optional)

 64 LED module

The bright LED display indicates the switch status or the alarm condition and can be connected to the following electronic inserts: FEL62, FEL64, FEL64DC

Order number: 71437382

Sliding sleeves for unpressurized operation

Switch point, infinitely adjustable.

 65 Sliding sleeves for unpressurized operation. Unit of measurement mm (in)

1 pe = 0 bar (0 psi)

A0039258

A0037666

G 1, DIN ISO 228/I

• Material: 1.4435 (AISI 316L)

• Weight: 0.21 kg (0.46 lb)

• Order number: 52003978

• Order number: 52011888, approval: with inspection certificate EN 10204 - 3.1 material

NPT 1, ASME B 1.20.1

• Material: 1.4435 (AISI 316L)

• Weight: 0.21 kg (0.46 lb)

• Order number: 52003979

• Order number: 52011889, approval: with inspection certificate EN 10204 - 3.1 material

Endress+Hauser 49

Page 50

Liquiphant FTL51B

G 1 A

(1 NPT)

G 1½A

(1½ NPT)

ø60 (2.36)

~72 (2.83)

~70 76(2. )

2 (0.08)

ø60 (2.36)

18 71(0. )

5050

G 1½, DIN ISO 228/I

• Material: 1.4435 (AISI 316L)

• Weight: 0.54 kg (1.19 lb)

• Order number: 52003980

• Order number: 52011890, approval: with inspection certificate EN 10204 - 3.1 material NPT 1½, ASME B 1.20.1

• Material: 1.4435 (AISI 316L)

• Weight: 0.54 kg (1.19 lb)

• Order number: 52003981

• Order number: 52011891, approval: with inspection certificate EN 10204 - 3.1 material

High pressure sliding sleeves

• Switch point, infinitely adjustable

• For use in hazardous areas,

• Seal package made of graphite

• For G 1, G 1½: seal included in delivery

 66 High pressure sliding sleeves. Unit of measurement mm (in)

G 1, DIN ISO 228/I

• Material: 1.4435 (AISI 316L)

• Weight: 1.13 kg (2.49 lb)

• Order number: 52003663

• Order number: 52011880, approval: with inspection certificate EN 10204 - 3.1 material G 1, DIN ISO 228/I

• Material: AlloyC22

• Weight: 1.13 kg (2.49 lb)

• Approval: with inspection certificate EN 10204 - 3.1 material

• Order number: 71118691 NPT 1, ASME B 1.20.1

• Material: 1.4435 (AISI 316L)

• Weight: 1.13 kg (2.49 lb)

• Order number: 52003667

• Order number: 52011881, approval: with inspection certificate EN 10204 - 3.1 material NPT 1, ASME B 1.20.1

• Material: AlloyC22

• Weight: 1.13 kg (2.49 lb)

• Approval: with inspection certificate EN 10204 - 3.1 material

• Order number: 71118694 G 1½, DIN ISO 228/1

• Material: 1.4435 (AISI 316L)

• Weight: 1.32 kg (2.91 lb)

• Order number: 52003665

• Order number: 52011882, approval: with inspection certificate EN 10204 - 3.1 material

A0037667

50 Endress+Hauser

Page 51

Liquiphant FTL51B

G 1½, DIN ISO 228/1

• Material: AlloyC22

• Weight: 1.32 kg (2.91 lb)

• Approval: with inspection certificate EN 10204 - 3.1 material

NPT 1½, ASME B 1.20.1

• Material: 1.4435 (AISI 316L)

• Weight: 1.32 kg (2.91 lb)

• Order number: 52003669

• Order number: 52011883, approval: with inspection certificate EN 10204 - 3.1 material

NPT 1½, ASME B 1.20.1

• Material: AlloyC22

• Weight: 1.32 kg (2.91 lb)

• Approval: with inspection certificate EN 10204 - 3.1 material

• Order number: 71118695

Endress+Hauser 51

Page 52

Liquiphant FTL51B

Supplementary documentation

The certificates, approvals and other documentation currently available can be accessed as follows: Endress+Hauser website: www.endress.com → Downloads.

Special documentation

Supplementary devicedependent documentation

• TI00426F: Weld-in adapter and flanges (overview)

• SD01622F: Weld-in adapter (installation instructions)

• SD02389F: Bluetooth module VU121

Document type: Operating Instructions (BA)

Installation and initial commissioning ‒ contains all functions in the operating menu that are required for a typical measuring task. Functions beyond this scope are not included. BA01894F

Document type: Brief Operating Instructions (KA)

Quick guide to the first measured value ‒ includes all essential information from the incoming acceptance to the electrical connection. KA01429F

Document type: Safety Instructions, certificates

Depending on the approval, Safety Instructions are also supplied with the device, e. g. XA. This documentation is an integral part of the Operating Instructions. The nameplate indicates the Safety Instructions (XA) that are relevant to the device.

Registered trademarks

The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Endress+Hauser is under license. Other trademarks and trade names are those of their respective owners.

Apple®

Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

Android®

Android, Google Play and the Google Play logo are trademarks of Google Inc.

*71441084*

71441084

www.addresses.endress.com

Endress+Hauser FTL51B Specifications

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

About this document

Symbols Safety symbols

Function and system design

point level detection

Measuring principle

Measuring system

Dependability Device-specific IT security

Input

Measured variable

Measuring range

Output

Output and input variants Electronic inserts

Output signal Switch output

Ex connection data

2-wire AC (electronic insert FEL61)

Supply voltage

Power consumption

Current consumption

Power output and load current

Behavior of output signal

Terminal assignment

Behavior of switch output and signaling

Supply voltage

Power consumption

Current consumption

Load current

Capacitance load

Residual current

Residual voltage

3-wire DC-PNP (electronic insert FEL62)

Behavior of output signal

Terminal assignment

Behavior of switch output and signaling

Universal current connection with relay output (electronic insert FEL64)

Supply voltage

Power consumption

Connectable load

Behavior of output signal

Terminal assignment

Behavior of switch output and signaling

DC connection, relay output (electronic insert FEL64 DC)

Supply voltage

Power consumption

Connectable load

Behavior of output signal

Terminal assignment

Supply voltage

Power consumption

Behavior of output signal

PFM output (electronic insert FEL67)

Terminal assignment

Connection cable

Supply voltage

Power consumption

Behavior of output signal

2-wire NAMUR > 2.2 mA/< 1.0 mA (electronic insert FEL68)

Terminal assignment

Behavior of switch output and signaling

Bluetooth module and Heartbeat Technology

Heartbeat Technology Heartbeat Technology module

Functions

Technical data

LED module VU120 (optional)

Supply voltage

Power consumption

Current consumption

Performance characteristics

Reference operating conditions

Maximum measured error

Hysteresis

Non-repeatability

Influence of the process temperature

Influence of the process pressure

Influence of the density of the process medium (at room temperature and normal pressure)

Installation