Endress+Hauser FTL62 Series, Functional Safety Manual

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Liquiphant FTL62 with electronic insert FEL67 Table of contents
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