Endress+Hauser Liquiphant M with FEL56 User Manual

Products Solutions Services
SD00188F/00/EN/13.13
71238762
Functional safety manual
Liquiphant M/S with FEL56
and Nivotester FTL325N
Level Limit Measuring System
[Ex ia]
CH1
CH1
FTL325N
T
[Ex ia]
CH1 CH2
CH3
CH1 CH2 CH3
T
FTL325N
Application
Minimum detection (also dry running protection) of all
types of liquids in tanks to satisfy particular safety systems
requirements as per IEC 61508/IEC 61511-1.
The measuring device fulfils the requirements concerning
• Safety functions up to SIL 2
• Explosion protection by intrinsic safety or flameproof
enclosure
• EMC to EN 61326 and NAMUR Recommendation
NE 21.
Your benefits
• For minimum detection up to SIL 2
– Independently assessed (Functional Assessment) by
exida.com as per IEC 61508/IEC 61511-1
• Monitoring for corrosion on the tuning fork of the
sensor
• No calibration
• Fault message for circuit break and short-circuit
• Functional test of subsequent devices at the push
of a button
• Protected against outside vibration
• Easy commissioning

Endress+Hauser Liquiphant M with FEL56 Specifications

General

Brand	Endress+Hauser
Model	Liquiphant M with FEL56
Category	Measuring Instruments
Language	English

Summary

Level Limit Measuring System

Application Details

Product Benefits

SIL Declaration of Conformity

Introduction to Safety Systems

SIL Parameter Determination

Explains tables used to determine Safety Integrity Level (SIL) parameters like PFDav, HFT, SFF.

Measuring System Structure and Safety Function

Level Limit Measuring System Overview

Safety Function Configuration

Specifies permitted settings and operational states for the safety function.

Permitted Device Types for Safety Use

Safety Function Data

Settings and Installation Guide

General Installation Guidance

Liquiphant M/S (FEL56) Configuration

Nivotester FTL325N Configuration

Operation and Failure Response

Recurrent Function Test Procedures

Instructions for annual tests to verify the minimum detection function.

Safety Configuration Details

1oo1 Architecture (Configuration 1)

Details safety parameters and wiring for the 1oo1 (CONF 1) architecture.

1oo1 Architecture (Configuration 2)

Details safety parameters and wiring for the 1oo1 (CONF 2) architecture.

1oo1 Architecture (Configuration 3)

1oo2 Architecture (Configuration 4)

2oo3 Architecture (Configuration 5)

1oo1 Architecture (Configuration 6)

Exida Management Summary

FMEDA and Proven-in-use Assessment Summary

Overview of Failure Modes, Effects, and Diagnostics Analysis and proven-in-use findings.

Management Summary Overview

Key findings from the hardware assessment for safety system compliance.