Endress+Hauser Nivotester FTL325N-**** Series Instructions for use

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Functional Safety Manual
Nivotester FTL325N
Vibronic
Liquiphant + FEL68
FY01005F/00/EN/02.20
71491951
2020-08-31

Nivotester FTL325N
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
1.
3.
2.
A0023555

Nivotester FTL325N Table of contents
Endress+Hauser 3
Table of contents
1 Declaration of Conformity ...... 4
1.1 Version II wiring ..................... 4
1.2 Version III wiring .....................6
1.3 Version IV wiring .................... 8
1.4 Version V wiring .................... 10
1.5 Version VI wiring ................... 12
2 About this document .......... 14
2.1 Document function .................. 14
2.2 Symbols used ....................... 14
2.3 Supplementary device documentation .. 15
3 Design .......................... 16
3.1 Permitted devices types .............. 16
3.2 Identification marking ............... 16
3.3 Safety function ..................... 16
3.4 Basic conditions for use in safety-
related applications ................. 18
3.5 Useful lifetime of electric components .. 18
4 Commissioning (installation
and configuration) ............ 18
4.1 Requirements for personnel .......... 18
4.2 Installation ........................ 18
4.3 Commissioning ..................... 19
4.4 Operation ..........................19
4.5 Device configuration for safety-related
applications ........................ 19
5 Operation ...................... 21
5.1 Device behavior when switched on ..... 21
5.2 Device behavior in safety function
demand mode ...................... 22
5.3 Device behavior in the event of an
alarm ............................. 22
6 Proof testing ................... 22
6.1 Basic test sequence .................. 24
6.2 Test sequence A, MIN detection ....... 25
6.3 Test sequence A, MAX detection ...... 26
6.4 Test sequence B, simulation using test
button or test magnet on Liquiphant ... 27
6.5 Test sequence B, simulation with test
button on Nivotester ................ 28
6.6 Verification criterion ................ 29
7 Repair and error handling .... 29
7.1 Maintenance ....................... 29
7.2 Repair ............................. 29
7.3 Modification ....................... 30
7.4 Decommissioning ................... 30
7.5 Disposal ........................... 30
7.6 Battery disposal .................... 31
8 Appendix ...................... 31
8.1 Structure of the measuring system ..... 31
8.2 Commissioning or proof test report .... 32
8.3 Version history ..................... 39

Declaration of Conformity Nivotester FTL325N
4 Endress+Hauser
1 Declaration of Conformity
1.1 Version II wiring
SIL_00358_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 FTL51B, FTL62, FTL64 with electronic insert FEL68
and Nivotester FTL325N
is suitable for the use in safety-instrumented syst ems according to IEC 61508. The instructions of the
corresponding functional safety manual must be followed.
This declaration of conformity is valid for variant II: One Liquiphant ES with a one channel Nivotester
FTL325N.
A: continuative safety instrumented function, e.g. actuator or S-PLC
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
A0039390

Nivotester FTL325N Declaration of Conformity
Endress+Hauser 5
1.1.1 Safety-related characteristic values, version II
SIL_00358_01.20
General
Device designation and permissible types Liquiphant with electronic insert FEL68 and Nivotester, variant II
FTL51B/62/64–**A8*************+LA and FTL325N–G/H/N/P/T/W/2/8 ***
Safety-related output signal Relay
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 Liquiphant 01.00.ww (ww: any double number)
Nivotester 01.00.ww or 02.00.ww (ww: any double number)
Valid soware version Liquiphant 01.01.zz (zz: any double number)
Safety manual FTL51B: FY01000F, FTL62: FY01019F, FTL64: FY01024F and FY01005F
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 and 968/FSP 1882.01/20
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) 75 FIT 60 FIT —
λDD 2),3) 140 FIT 106 FIT —
λSU 2),3) 618 FIT 634 FIT —
λSD 2),3) 5 FIT 41 FIT —
SFF 91% 93% —
PFDavg (T1 = 1 year) 3) (single channel architecture) 3.29 × 10-4 2.61× 10-4 —
PFH 3) 7.51 × 10-8 1/h 5.97 × 10-8 1/h —
PTC 4) Test sequence A 91% 91% —
Test sequence B 59% 74% —
λtotal 2),3) 839 FIT 841 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 1.7 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
A0039391