Endress+Hauser FTL51B Operating Manual

0 (0)

BA01894F/00/EN/02.19

71440978

2019-06-28

Valid as of version 01.00.zz

Products

Solutions

Services

 

 

 

Operating Instructions

Liquiphant FTL51B

Vibronic

Limit switch for liquids

Liquiphant FTL51B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORDER CODE:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XXXXX-XXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

 

 

SER. NO.:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XXXXXXXXXXXX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXT. ORD. CD.:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XXX.XXXX.XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

www.endress.com/deviceviewer

 

 

 

 

 

Endress+Hauser

 

 

 

 

 

 

 

 

 

 

 

Operations App

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

A0023555

2

Endress+Hauser

Liquiphant FTL51B

Table of contents

 

 

Table of contents

1

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

5

1.1

Symbols

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

5

 

1.1.1

Safety symbols . . . . . . . . . . . . . . . . . .

5

 

1.1.2

Electrical symbols . . . . . . . . . . . . . . . .

5

 

1.1.3 Symbols for certain types of

 

 

 

information . . . . . . . . . . . . . . . . . . . .

5

 

1.1.4

Symbols in graphics . . . . . . . . . . . . . . .

5

2

Basic safety instructions . . . . . . . . . . . .

6

2.1

Requirements for the personnel . . . . . . . . . . . .

6

2.2

Designated use . . . . . . . . . . . . . . . . . . . . . . . .

6

 

2.2.1 Incorrect use . . . . . . . . . . . . . . . . . . . .

6

2.3

Workplace safety . . . . . . . . . . . . . . . . . . . . . . .

6

2.4

Operational safety . . . . . . . . . . . . . . . . . . . . . .

6

2.5

Product safety . . . . . . . . . . . . . . . . . . . . . . . . .

7

2.6

IT security . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

3

Product description . . . . . . . . . . . . . . . . .

7

3.1

Product design . . . . . . . . . . . . . . . . . . . . . . . .

8

4Incoming acceptance and product

 

identification . . . . . . . . . . . . . . . . . . . . . . .

9

4.1

Incoming acceptance . . . . . . . . . . . . . . . . . . . .

9

4.2

Product identification . . . . . . . . . . . . . . . . . . . .

9

 

4.2.1

Nameplate . . . . . . . . . . . . . . . . . . . . .

9

 

4.2.2

Manufacturer address . . . . . . . . . . . . .

9

4.3

Storage and transport . . . . . . . . . . . . . . . . . .

10

 

4.3.1

Storage conditions . . . . . . . . . . . . . . .

10

 

4.3.2

Transporting the device . . . . . . . . . . .

10

5

Installation . . . . . . . . . . . . . . . . . . . . . . .

11

5.1

Mounting conditions . . . . . . . . . . . . . . . . . . .

11

 

5.1.1 Taking the switch point into

 

 

 

consideration . . . . . . . . . . . . . . . . . .

11

 

5.1.2 Take viscosity into consideration . . . .

12

 

5.1.3

Avoiding buildup . . . . . . . . . . . . . . . .

13

 

5.1.4 Take clearance into consideration . . .

13

 

5.1.5

Support the device . . . . . . . . . . . . . . .

14

5.1.6Weld-in adapter with leakage hole . . 14

5.2 Mounting the measuring device . . . . . . . . . . . 14 5.2.1 Required tools . . . . . . . . . . . . . . . . . . 14 5.2.2 Installation . . . . . . . . . . . . . . . . . . . . 15

5.3 Sliding sleeves . . . . . . . . . . . . . . . . . . . . . . . 16 5.4 Post-installation check . . . . . . . . . . . . . . . . . . 16

6

Electrical connection . . . . . . . . . . . . . .

17

6.1

Connection conditions . . . . . . . . . . . . . . . . . .

17

 

6.1.1

Cover with securing screw . . . . . . . . .

17

 

6.1.2

Connecting protective earth (PE) . . . .

17

Endress+Hauser

6.2

Connecting the measuring device . . . . . . . . . .

17

 

6.2.1 2-wire AC (electronic insert

 

FEL61) . . . . . . . . . . . . . . . . . . . . . . . 17

6.2.23-wire DC-PNP (electronic insert

FEL62) . . . . . . . . . . . . . . . . . . . . . . . 19

6.2.3Universal current connection with relay output (electronic insert

FEL64) . . . . . . . . . . . . . . . . . . . . . . . 21

6.2.4DC connection, relay output

(electronic insert FEL64 DC) . . . . . . . 23

6.2.5PFM output (electronic insert

FEL67) . . . . . . . . . . . . . . . . . . . . . . . 25

6.2.62-wire NAMUR > 2.2 mA/< 1.0 mA

(electronic insert FEL68) . . . . . . . . . . 27

6.2.7Bluetooth module VU121

(optional) . . . . . . . . . . . . . . . . . . . . . 29 6.2.8 LED module VU120 (optional) . . . . . . 30 6.2.9 Cable entry . . . . . . . . . . . . . . . . . . . . 30

6.3 Post-connection check . . . . . . . . . . . . . . . . . . 31

7

Operation options . . . . . . . . . . . . . . . . .

32

7.1 Overview of operation options . . . . . . . . . . . . 32 7.1.1 Operating concept . . . . . . . . . . . . . . 32

7.1.2Functional test using the button on

the electronic insert . . . . . . . . . . . . . . 32

7.1.3Functional test of the electronic

switch with a test magnet . . . . . . . . . 35

7.1.4Heartbeat diagnostics and verification with Bluetooth® wireless

technology . . . . . . . . . . . . . . . . . . . . 36 7.2 LED module VU120 (optional) . . . . . . . . . . . . 37 7.2.1 Configuration and sensor status . . . . . 37

8

Commissioning . . . . . . . . . . . . . . . . . . . .

37

8.1 Function check . . . . . . . . . . . . . . . . . . . . . . . 37 8.2 Switching on the measuring device . . . . . . . . . 38

8.3Establishing a connection via SmartBlue

(app) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 8.3.1 SmartBlue (app) . . . . . . . . . . . . . . . . 38

9

Operation . . . . . . . . . . . . . . . . . . . . . . . . .

40

9.1

Diagnostics menu . . . . . . . . . . . . . . . . . . . . .

40

 

9.1.1

"Diagnostics" menu . . . . . . . . . . . . . . .

40

 

9.1.2

"Application" menu . . . . . . . . . . . . . .

40

 

9.1.3

"System" menu . . . . . . . . . . . . . . . . . .

41

9.2

Heartbeat Verification . . . . . . . . . . . . . . . . . .

42

9.3Recurrent testing for SIL/WHG (German

Water Resources Act) devices . . . . . . . . . . . . . 42

10 Diagnostics and troubleshooting . . . 42

10.1Diagnostic information via light emitting

diodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 10.1.1 LED at electronic insert . . . . . . . . . . . 43

3

Table of contents

Liquiphant FTL51B

 

 

10.1.2 SmartBlue . . . . . . . . . . . . . . . . . . . . . 43

11

Maintenance . . . . . . . . . . . . . . . . . . . . . .

44

11.1

Maintenance tasks . . . . . . . . . . . . . . . . . . . .

44

 

11.1.1

Cleaning . . . . . . . . . . . . . . . . . . . . . .

44

12

Repair

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

45

12.1

General information . . . . . . . . . . . . . . . . . . .

45

 

12.1.1

Repair concept . . . . . . . . . . . . . . . . .

45

 

12.1.2 Repair of Ex-certified devices . . . . . . .

45

12.2

Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . .

45

12.3

Return .

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

45

12.4

Disposal

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

46

13

Accessories . . . . . . . . . . . . . . . . . . . . . . .

47

13.1

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

47

 

13.1.1

Test magnet . . . . . . . . . . . . . . . . . . .

47

 

13.1.2 Weather protection cover for dual-

 

 

 

compartment housing, aluminum . . .

47

 

13.1.3 Weather protection cover for single-

 

 

 

compartment housing, metal . . . . . . .

47

 

13.1.4

Plug-in jack . . . . . . . . . . . . . . . . . . . .

48

 

13.1.5

Additional modules . . . . . . . . . . . . . .

48

 

13.1.6 Sliding sleeves for unpressurized

 

 

 

operation . . . . . . . . . . . . . . . . . . . . .

49

 

13.1.7 High pressure sliding sleeves . . . . . . .

50

14

Technical data . . . . . . . . . . . . . . . . . . . .

52

14.1

Input . .

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

52

 

14.1.1

Measured variable . . . . . . . . . . . . . .

52

 

14.1.2

Measuring range . . . . . . . . . . . . . . .

52

14.2

Output .

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

52

 

14.2.1 Output and input variants . . . . . . . . .

52

 

14.2.2

Output signal . . . . . . . . . . . . . . . . . .

53

 

14.2.3

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

53

14.3

Environment . . . . . . . . . . . . . . . . . . . . . . . . .

53

 

14.3.1

Ambient temperature range . . . . . . .

53

 

14.3.2

Storage temperature . . . . . . . . . . . . .

54

 

14.3.3

Humidity . . . . . . . . . . . . . . . . . . . . .

54

 

14.3.4

Operating altitude . . . . . . . . . . . . . . .

55

 

14.3.5

Climate class . . . . . . . . . . . . . . . . . .

55

 

14.3.6

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

55

 

14.3.7

Vibration resistance . . . . . . . . . . . . .

55

 

14.3.8

Shock resistance . . . . . . . . . . . . . . . .

55

 

14.3.9

Mechanical load . . . . . . . . . . . . . . . .

56

 

14.3.10 Electromagnetic compatibility . . . . . .

56

14.4

Process .

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

56

 

14.4.1

Process temperature range . . . . . . . .

56

 

14.4.2

Thermal shock . . . . . . . . . . . . . . . . .

56

 

14.4.3

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

56

 

14.4.4

Test pressure . . . . . . . . . . . . . . . . . .

57

 

14.4.5

Density . . . . . . . . . . . . . . . . . . . . . .

57

 

14.4.6

Pressure tightness . . . . . . . . . . . . . .

58

14.5

Additional technical data . . . . . . . . . . . . . . . .

58

Index . . . . . .

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

59

4

Endress+Hauser

Liquiphant FTL51B

About this document

 

 

1About this document

1.1Symbols

1.1.1Safety symbols

DANGER

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

WARNING

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

CAUTION

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

NOTICE

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

1.1.2Electrical 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.

1.1.3Symbols 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

A  Reference to another section

1. , 2. , 3.  Series of steps

1.1.4Symbols in graphics

A, B, C ...  View

1, 2, 3 ... Item numbers - Hazardous area

. Safe area (non-hazardous area)

Endress+Hauser

5

Basic safety instructions

Liquiphant FTL51B

 

 

2Basic safety instructions

2.1Requirements for the personnel

The personnel must fulfill the following requirements to carry out the necessary tasks, e. g., commissioning and maintenance:

Trained, qualified specialists must have a relevant qualification for the specific function and task

Are authorized by the plant owner/operator

Are familiar with federal/national regulations

Must have read and understood the instructions in the manual and supplementary documentation

Follow instructions and comply with conditions

2.2Designated use

Only use the measuring device as a limit switch for liquids

Improper use can pose hazards

Ensure that the measuring device is free of defects while it is in operation

Use the measuring device only for media to which the process-wetted materials have an adequate level of resistance

Do not exceed or drop below the limit values for the measuring deviceTI01403F/00/EN

2.2.1Incorrect use

The manufacturer is not liable for damage caused by improper or non-designated use.

Residual risks

Due to heat transfer from the process, the temperature of the electronics housing and the assemblies contained therein may rise to 80 °C (176 °F) during operation.

Danger of burns from contact with surfaces!

If necessary, ensure protection against contact to prevent burns.

For requirements concerning functional safety in accordance with IEC 61508, the associated SIL documentation must be observed.

2.3Workplace safety

For work on and with the device:

Wear the required protective equipment according to federal/national regulations.

2.4Operational safety

Risk of injury!

Operate the device only if it is in proper technical condition, free from errors and faults.

The operator is responsible for ensuring failure-free operation of the device.

Modifications to the device

Unauthorized modifications to the device are not permitted and can lead to unforeseeable dangers.

If, despite this, modifications are required, consult with Endress+Hauser.

6

Endress+Hauser

Liquiphant FTL51B

Product description

 

 

Repair

To ensure continued operational safety and reliability:

Only perform repair work on the device if this is expressly permitted.

Observe federal/national regulations pertaining to the repair of an electrical device.

Use original spare parts and accessories from Endress+Hauser only.

2.5Product safety

This measuring device is designed in accordance with good engineering practice to meet state-of-the-art safety requirements, has been tested, and left the factory in a condition in which it is safe to operate.

It meets general safety standards and legal requirements. It also complies with the EC directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser confirms this by affixing the CE mark to the device.

2.6IT security

We only provide a warranty if the device is installed and used as described in the Operating Instructions. The device has safety mechanisms integrated to prevent users from inadvertently changing settings.

Provide additional protection for the device and data transfer to/from the device

IT security measures defined in the plant owner/operator's own security policy must be implemented by plant owners/operators themselves.

3Product description

Point level switch for minimum or maximum detection.

Endress+Hauser

7

Product description

Liquiphant FTL51B

 

 

3.1Product design

1

2

3

4

5

A0036953

1 Product design

1Housing with electronic insert and cover, optional Bluetooth module or LED module

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

3Compact probe design

4 Probe design with pipe extension

5Probe design with short pipe

Identify the electronic insert via the order code on the nameplate.

Optional: Bluetooth module VU121 or LED module VU120

FCC

C

IC:

ID:

ONTAINS

A0039257

2 Bluetooth module

A0039258

3 LED module

8

Endress+Hauser

Liquiphant FTL51B

Incoming acceptance and product identification

 

 

4Incoming acceptance and product identification

4.1Incoming acceptance

Check the following during goods acceptance:

Are the order codes on the delivery note and the product sticker identical?

Are the goods undamaged?

Do the nameplate data match the ordering information on the delivery note?

If required (see nameplate): Are the Safety Instructions, e. g. XA, provided?

Is the device properly secured?

If one of these conditions is not met, please contact the manufacturer's sales office.

4.2Product identification

The measuring device can be identified in the following ways:

Nameplate data

Extended order code with breakdown of the device features on the delivery note

Enter serial number from nameplates in W@M Device Viewer (www.endress.com/deviceviewer): All of the information on the measuring device is displayed along with an overview of the scope of technical documentation provided

Enter the serial number on the nameplate into the Endress+Hauser Operations App or use the Endress+Hauser Operations App to scan the 2-D matrix code (QR Code) on the nameplate

4.2.1

Nameplate

 

 

 

 

ORDER CODE:

3

 

SER. NO.:

 

EXT. ORD. CD.:

 

 

 

PMAX:

 

 

 

 

0.83 W PNP

 

 

 

 

 

 

4

5

 

L:

 

 

 

DEV.REV.:

 

 

 

1

2 FW:

 

 

 

 

 

 

4

 

 

 

 

 

A0038187

4 Nameplate specifications

1 Manufacturer name and device name

2Manufacturer address

3 Order number, external order code, serial number

4Technical data

5Approval-specific information

4.2.2Manufacturer address

Endress+Hauser SE+Co. KG Hauptstraße 1

79689 Maulburg, Germany

Address of the manufacturing plant: See nameplate.

Endress+Hauser

9

Incoming acceptance and product identification

Liquiphant FTL51B

 

 

4.3Storage and transport

4.3.1Storage conditions

Use original packaging.

Storage temperature

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

4.3.2Transporting the device

Transport the device to the measuring point in the original packaging

Hold the device by the housing, temperature spacer, flange or extension pipe

Do not bend, shorten or extend the tuning fork

A0034846

5 Handling the device during transportation

10

Endress+Hauser

Liquiphant FTL51B

Installation

 

 

5Installation

LWARNING

Loss of protection rating if the device is opened in a wet environment.

Only open the device in a dry environment!

1

A0037879

6 Installation in any position in a vessel, pipe or tank

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

5.1Mounting conditions

5.1.1Taking the switch point into consideration

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

(water +23 °C (+73 °F))

A

(0.5)~13

D

B

D

~4 (0.16)

D

~12.5 (0.49)

C

A0037915

7 Typical switch points. Unit of measurement mm (in)

A Installation from above B Installation from below C Installation from the side

DSwitch point

Endress+Hauser

11

Installation

Liquiphant FTL51B

 

 

5.1.2Take viscosity into consideration

Low viscosity

D

> 25 (0.98)

A0033297

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

DDiameter 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.

High viscosity

> 40 (1.57)

A0037348

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

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!

12

Endress+Hauser

Liquiphant FTL51B

Installation

 

 

5.1.3Avoiding buildup

A0033239

10 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.

5.1.4Take clearance into consideration

A0033236

11 Take clearance into consideration

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

Endress+Hauser

13

Installation

Liquiphant FTL51B

 

 

5.1.5Support the device

A0031874

12 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).

5.1.6Weld-in adapter with leakage hole

316L

A0039230

13 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.

5.2Mounting the measuring device

5.2.1Required tools

Open-ended wrench for sensor installation

Screwdriver for electrical connection

14

Endress+Hauser

Endress+Hauser FTL51B Operating Manual

Liquiphant FTL51B

Installation

 

 

5.2.2Installation

Horizontal installation in vessels

Align the tuning fork with the marking

316L/G1

A0039125

14 Marking to align the tuning fork

Use the marking to align the tuning fork in such a way that medium can run off easily and deposit buildup is avoided.

The following can be used as the marking:

Material specification, thread description or circle on the hexagonal nut or on the weldin adapter

The II symbol on the back of the flange or Tri-Clamp

Installing in pipes

A0034851

15 Marking and fork position

Flow velocity up to 5 m/s with viscosity 1 mm2/s (cSt) and density 1 g/cm3 (SGU) Check for correct functioning in the event of other process medium conditions

The marking on the adapter points in the flow direction; the flow is thus not severely obstructed

The marking can be identified while the device is installed

Screwing in the device

A0034852

16 Screwing in the device

Turn by the hex bolt only, 15 to 30 Nm (11 to 22 lbf ft)

Do not turn at the housing!

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15

Installation

Liquiphant FTL51B

 

 

Aligning the cable entry

1.

3.

2.

 

3

3 0.7 NM

A0037347

17 Housing with external locking screw

The locking screw is not tightened when the device is delivered.

1.Release the external locking screw.

2.Turn the housing, align the cable entry.

3.Tighten the external locking screw.

5.3Sliding sleeves

See the "Accessories" section.

5.4Post-installation check

Is the measuring device undamaged (visual inspection)?

Does the measuring device conform to the measuring point specifications?

For example:

Process temperature

Process pressure

Ambient temperature range

Measuring range

Are the measuring point number and labeling correct (visual inspection)?

Is the measuring device adequately protected against precipitation and direct sunlight?Is the device properly secured?

16

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Liquiphant FTL51B

Electrical connection

 

 

6Electrical connection

6.1Connection conditions

6.1.1Cover with securing screw

Covers with a securing screw are available for devices for use in hazardous areas. Do not release the screw fully.

A0039520

18 Cover with securing screw

6.1.2Connecting protective earth (PE)

The protective earth conductor at the device must only be connected if the device's operating voltage is ≥ 35 VDC or ≥ 16 VACeff.

When the device is used in hazardous areas, it must always be included in the potential equalization of the system, irrespective of the operating voltage.

The plastic housing is available with or without an external protective earth connection (PE).

6.2Connecting the measuring device

6.2.12-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

U = 19 to 253 VAC

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 (slowblow) in the line (not the neutral wire) of the supply circuit.

Power consumption

P ≤ 2 VA

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Electrical connection

Liquiphant FTL51B

 

 

Current consumption

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 short-circuit every 5 seconds. The test is deactivated after 60 seconds.

Power output and load current

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.

Behavior of output signal

OK status: load on (switched through)

Demand mode: load off (blocked)

Alarm: load off (blocked)

Terminal assignment

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

 

 

U ~ 19...253 V AC

 

 

I MAX: 350 MA

 

 

L1

N

COM

MAX

>0,7

 

 

 

 

 

 

>0,5

 

 

MIN

 

 

 

1

 

 

 

2

1

2

 

 

!

1 A

K

PE

L1 N

A0036060

19 2-wire AC, electronic insert FEL61

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