Endress+Hauser FTL62 Series Instructions for use

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Functional Safety Manual

Liquiphant FTL62

with electronic insert FEL67

Vibronic

Using with FTL325P

FY01018F/00/EN/01.20

71491956

2020-09-28

Valid as of version

01.01.zz (Device firmware)

01.00.zz (Device hardware)

Liquiphant FTL62 with electronic insert FEL67

2 Endress+Hauser

Order code:

Ext. ord. cd.:

Ser. no.:

www.endress.com/deviceviewer Endress+Hauser

Operations App

XXXXXXXXXXXX

XXXXX-XXXXXX

XXX.XXXX.XX

Serial number

A0023555

Liquiphant FTL62 with electronic insert FEL67 Table of contents

Endress+Hauser 3

Table of contents

1 Declaration of Conformity ...... 4

1.1 Safety-related characteristic values ..... 5

2 About this document ........... 6

2.1 Document function ................... 6

2.2 Symbols used ........................ 6

2.3 Supplementary device documentation ... 7

3 Design ........................... 8

3.1 Permitted device types ................ 8

3.2 Identification marking ................ 9

3.3 Safety function ...................... 9

3.4 Basic conditions for use in safety-

related applications .................. 9

3.5 Useful lifetime of electric components .. 12

4 Commissioning (installation

and configuration) ............ 12

4.1 Requirements for personnel .......... 12

4.2 Installation ........................ 13

4.3 Commissioning ..................... 13

4.4 Operation ..........................13

4.5 Parameter configuration for safety-

related applications ................. 13

5 Operation ...................... 15

5.1 Device behavior during power-up ...... 15

5.2 Device behavior in safety function

demand mode ...................... 15

5.3 Device behavior in the event of an

alarm ............................. 15

6 Proof testing ................... 15

6.1 Basic test sequence .................. 16

7 Repair and error handling .... 16

7.1 Maintenance ....................... 16

7.2 Repair ............................. 16

7.3 Modification ....................... 17

7.4 Decommissioning ................... 17

7.5 Disposal ........................... 17

7.6 Battery disposal .................... 18

8 Appendix ...................... 18

8.1 Structure of the measuring system ..... 18

8.2 Version history ..................... 20

Declaration of Conformity Liquiphant FTL62 with electronic insert FEL67

4 Endress+Hauser

1 Declaration of Conformity

SIL_00351_01.20

Declaration of Conformity

Functional Safety according to IEC 61508

Based on NE 130 Form B.1

Endress+Hauser SE+Co. KG, Hauptstraße 1, 79689 Maulburg

being the manufacturer, declares that the product

Liquiphant FTL62 with electronic insert FEL67

(with dedicated Nivotester only)

is suitable for the use in safety-instrumented systems according to IEC 61508. The instructions of the

corresponding functional safety manual must be followed.

This declaration of conformity is exclusively valid for the customer listed in the cover letter of the

respective Endress+Hauser sales center and for the listed products and accessories in delivery status.

Maulburg, 27-July-2020

Endress+Hauser SE+Co. KG

i. V.

Manfred Hammer

Dept. Man. Technology

Quality Management / FSM

Research & Development

A0042175

Liquiphant FTL62 with electronic insert FEL67 Declaration of Conformity

Endress+Hauser 5

1.1 Safety-related characteristic values

SIL_00351_01.20

General

Device designation and permissible types Liquiphant with electronic insert FEL67

FTL62–**A7*************+LA

Safety-related output signal For connection to dedicated Nivotester only

Fault signal

Process variable/function Level switch for liquids

Safety function(s) Overﬁll protection or operating maximum/minimum detection

Device type acc. to IEC 61508-2 Type A Type B

Operating mode Low Demand Mode High Demand Mode 1)

Continuous Mode

Valid hardware version 01.00.ww (ww: any double number)

Valid soware version 01.01.zz (zz: any double number)

Safety manual FY01018F

Type of evalulation

(check only one box)

Complete HW/SW evaluation parallel to development incl.

FMEDA and change request acc. to IEC 61508-2, 3

Evaluation of “proven in use” performance for HW/SW incl. FMEDA

and change request acc. to IEC 61508-2, 3

Evaluation of HW/SW ﬁeld data to verify „prior use” acc. to

IEC 61511

Evaluation by FMEDA acc. to IEC 61508-2 for devices w/o soware

Evaluation through – report/certiﬁcate no. TÜV Rheinland / 968/FSP 1388.02/20

Test documents Development documents Test reports Data sheets

SIL - Integrity

Systematic safety integrity

SIL 2 capable SIL 3 capable

Hardware safety integrity Single channel use (HFT = 0)

SIL 2 capable SIL 3 capable

Multi channel use (HFT ³ 1)

SIL 2 capable SIL 3 capable

FMEDA

Safety function MIN MAX —

λDU 2),3) 28 FIT 13 FIT —

λDD 2),3) 140 FIT 106 FIT —

λSU 2),3) 133 FIT 149 FIT —

λSD 2),3) 5 FIT 41 FIT —

SFF 91% 96% —

PFDavg (T1 = 1 year) 3) (single channel architecture) 1.24 × 10-4 5.67× 10-5 —

PFH 3) 2.83 × 10-8 1/h 1.29 × 10-8 1/h —

PTC 4) Test sequence A 94% 94% —

Test sequence B 8% 17% —

λtotal 2),3) 307 FIT 308 FIT —

Diagnostic test interval 5)

≤ 60 s, except RAM check ≤ 10 min —

Fault reaction time 6) ≤ 3 s —

Comments

Nivotester works without soware.

Declaration

Our internal company quality management system ensures information on safety-related systematic faults which become evident

in the future

1) Maximum admissible 1 demand per week.

2) FIT = Failure In Time, number of failures per 109 h

3) Valid for average ambient temperature up to +40 °C (+104 °F)

For continuous operation at ambient temperature close to +60 °C (+140 °F), a factor of 1.5 should be applied

4) PTC = Proof Test Coverage

5) All diagnostic functions are performed at least once within the diagnostic test interval

6) Maximum time between error recognition and error response

A0042176

About this document Liquiphant FTL62 with electronic insert FEL67

6 Endress+Hauser

2 About this document

2.1 Document function

This supplementary Safety Manual applies in addition to the Operating Instructions, Technical

Information and ATEX Safety Instructions. The supplementary device documentation must be

observed during installation, commissioning and operation. The requirements specific to the

protection function are described in this Safety Manual.

General information on functional safety (SIL) is available at:

•www.endress.com/SIL

• CP01008Z, Brochure "Functional Safety – SIL, Safety Instrumented Systems in the

Process Industry"

2.2 Symbols used

2.2.1 Safety 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.

2.2.2 Symbols for certain types of information and graphics

Tip

Indicates additional information

Reference to documentation

Reference to graphic

Notice or individual step to be observed

Series of steps

Result of a step

Liquiphant FTL62 with electronic insert FEL67 About this document

Endress+Hauser 7

1, 2, 3, ...

Item numbers

A, B, C, ...

Views

Hazardous area

Indicates the hazardous area

Safe area (non-hazardous area)

Indicates the non-hazardous area

2.3 Supplementary device documentation

For an overview of the scope of the associated Technical Documentation, refer to the

following:

•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number from

nameplate

•Endress+Hauser Operations App: Enter the serial number from the nameplate or scan

the 2D matrix code (QR code) on the nameplate

The following documentation types are available in the Downloads section of the

Endress+Hauser website (www.endress.com/downloads):

2.3.1 Further applicable documents

• TI01539F

• BA02036F

• KA01479F

• FY001006F, Functional Safety Manual, FTL325P

2.3.2 Technical Information (TI)

Planning aid

The document contains all the technical data on the device and provides an overview of the

accessories and other products that can be ordered for the device.

2.3.3 Brief Operating Instructions (KA)

Guide that takes you quickly to the 1st measured value

The Brief Operating Instructions contain all the essential information from incoming

acceptance to initial commissioning.

2.3.4 Operating Instructions (BA)

Your reference guide

These Operating Instructions contain all the information that is required in various phases of

the life cycle of the device: from product identification, incoming acceptance and storage, to

mounting, connection, operation and commissioning through to troubleshooting,

maintenance and disposal.

Design Liquiphant FTL62 with electronic insert FEL67

8 Endress+Hauser

2.3.5 Safety Instructions (XA)

Depending on the approval, the following Safety Instructions (XA) are supplied with the

device. They are an integral part of the Operating Instructions.

The nameplate indicates the Safety Instructions (XA) that are relevant to the device.

3 Design

3.1 Permitted device types

The details pertaining to functional safety in this manual relate to the device versions listed

below and are valid as of the specified firmware and hardware versions.

Unless otherwise specified, all subsequent versions can also be used for safety functions.

A modification process according to IEC 61508 is applied for device changes.

Valid device versions for safety-related use:

3.1.1 Order codes

FTL62-

Feature: 010 "Approval"

Version: all

Feature: 020 "Output"

Version: A7; FEL67, 2-wire PFM + test button

Feature: 030 "Display, operation"

Version: all

Feature: 040 "Housing; material"

Version: all

Feature: 050 "Electrical connection"

Version: all

Feature: 060 "Application"

Version: all

Feature: 080 "Surface finish"

Version: all

Feature: 085 "Probe design"

Version: all

Feature: 090 "Sensor length, material"

Version: all

Feature: 105 "Process connection, sealing surface"

Version: all

Liquiphant FTL62 with electronic insert FEL67 Design

Endress+Hauser 9

Feature: 110 "Process connection"

Version: all

Feature: 590 "Additional approval"

Version: LA

Advanced diagnostic measures are only implemented in this version. This version must be

selected for use as a safety function as per IEC 61508.

3.2 Identification marking

SIL-certified devices are marked with the SIL logo on the nameplate.

3.3 Safety function

The device's safety functions are:

• Maximum level monitoring (overfill prevention, MAX detection)

• Minimum level monitoring (dry running protection, MIN detection)

3.4 Basic conditions for use in safety-related applications

The measuring system must be used correctly for the specific application, taking into account

the medium properties and ambient conditions. Carefully follow instructions pertaining to

critical process situations and installation conditions from the Operating Instructions. The

application-specific limits must be observed. The specifications in the Operating Instructions

and the Technical Information must not be exceeded.

3.4.1 Density of the medium

Operation is only permitted with liquids:

• Depending on the configured density setting, the density of the liquid must be as follows:

• if the switch position is > 0.7 the density must be over 0.7 g/cm³ (common water- and

oil-based liquids).

• if the switch position is > 0.5 the density must be over 0.5 g/cm³ (e.g., liquefied gas,

isopentane, petroleum ether).

• The gas phase above the liquid may not exceed a maximum permitted density value. The

maximum possible gas density depends on the temperature and the device.

Design Liquiphant FTL62 with electronic insert FEL67

10 Endress+Hauser

1.000

0.100

0.010

ρ[g/cm³]

0.001

+300

+527

-60

-76

+60

+140

+120

+248

+180

+356

+240

+464

±0

+32

[°C]

[°F]

A0026840

 1 Density of gas phase above the medium

1 Switch position for density 0.7 g/cm³

2 Switch position for density 0.5 g/cm³

LCAUTION

Gas density is exceeded!

"Free" status is not detected and "Covered" is always signaled.

‣The gas density may not be exceeded.

• There is no minimum density for the gas phase.

Operation in a vacuum is permitted!

• There is no maximum density for the liquid.

• For more information on the levels of diagnostic coverage, refer to IEC 61508-2:2010

Appendix A.2, Comment 2 and Table A.1.

3.4.2 Buildup (only for MIN detection)

The device may only be used in media that do not tend to cause buildup. Buildup is considered

to be any deposits with a thickness of over 0.5 mm (0.02 in). Buildup can have the effect that

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