Table of Contents
Advertisement
Quick Links
Functional Safety Manual
Liquiphant S, Nivotester
FDL60/61, FTL670
Level limit measuring system
Application
Overfill protection or maximum detection of all types of
liquids, to meet the particular requirements for safety-
related systems as per IEC 61508.
The measuring system meets the requirements for
• Functional safety in accordance with IEC 61508
• Explosion protection by intrinsic safety
• Electromagnetic compatibility as per EN 61326 and
NAMUR recommendation NE 21
• Electrical safety in accordance with IEC/EN 61010-1
SD175F/00/EN/09.09
71103335
FTL670
s
Your benefits
• For overfill protection up to SIL 3
– independently assessed (Functional Safety
Assessment) by TÜV Süd in accordance with
IEC 61508
• Suitable for liquefied gases according to VdTÜV,
Merkblatt 100
– for tank categories B and C
– no annual recurrent test required
• Permanent self-monitoring
• Error message for circuit break and short-circuit
• Functional test of follow-up devices with press of
button or remote operation
• Monitoring for corrosion on the tuning fork of the
sensor
• No calibration
• Insensitive to external vibration
• Easy commissioning
Advertisement
Table of Contents
Related Manuals for Endress+Hauser Liquiphant S FDL60
Summary of Contents for Endress+Hauser Liquiphant S FDL60
- Page 1 Functional Safety Manual Liquiphant S, Nivotester FDL60/61, FTL670 Level limit measuring system FTL670 Application Your benefits Overfill protection or maximum detection of all types of • For overfill protection up to SIL 3 liquids, to meet the particular requirements for safety- –...
-
Page 2: Table Of Contents
Technical report ......16 Certificate ....... . . 20 Endress+Hauser... -
Page 3: Sil Declaration Of Conformity
Liquiphant S, Nivotester SIL Declaration of Conformity SIL-03013b Endress+Hauser... -
Page 4: General Information
(FailSafe) SD175en02 The measuring system consists of the Liquiphant S FDL60 or FDL61 sensor with the FEL67 electronic insert and Nivotester FTL670 switching unit. A signal which is dependent on the level is generated in the sensor. This is fed to the switching unit where it is made available as a fail-safe contact. -
Page 5: Permitted Device Types
Unless otherwise indicated, all subsequent versions can also be used for safety functions. In the event of device modifications, a modification process compliant with IEC 61508 is applied. Device versions valid for use in safety-related applications: Liquiphant S FDL60 Options Designation... -
Page 6: Supplementary Device Documentation
Liquiphant S, Nivotester Supplementary device Liquiphant S FDL60, FDL61 documentation Documentation Contents Note Technical Information – Technical data – The documentation is available on the TI223F/00 – Instructions on accessories Internet. → www.endress.com. Operating Instructions – Introduction – The documentation is available on the BA140F/00 –... -
Page 7: Description Of The Safety Requirements And Boundary Conditions
– All liquids of viscosity up to 2000 mm /s with density greater than 0.5 g/cm – Viscosities up to 10,000 mm /s are possible in the case of orientations as per TI223F/00. – Liquefied gas with density greater than 0.44 g/cm Endress+Hauser... -
Page 8: Functional Safety Figures
A dangerous, undetected failure is defined as an incorrect output signal where the tuning fork is covered while the fail-safe contact is closed.3 Useful lifetime of electrical components: The established failure rates of electrical components apply within the useful lifetime as per IEC 61508-2, Section 7.4.7.4. Note 3. Endress+Hauser... -
Page 9: Behavior Of Device During Operation And In Case Of Error
The type of fault is also indicated by an LED on the Nivotester; see Operating Instructions (→ ä 6, "Supplementary device documentation"). Note! This signaling is simply an additional piece of diagnostic information and does not form part of the safety-related output signal. Endress+Hauser... -
Page 10: Installation
• U ≤ 120 V DC, I ≤ 2.5 A, P ≤ 75 W " Caution! Changes to the measuring system and settings after start-up can impair the protection function! Orientation The permitted orientations of the device are described in the Operating Instruction (→ ä 6, "Supplementary device documentation"). Endress+Hauser... -
Page 11: Initial Operation
– Yes: the test is successful and normal operation is resumed. Note! With this type of test, the entire safety path from the tuning fork to the fail-safe contact is checked! For troubleshooting, → Operating Instructions (→ ä 6, "Supplementary device documentation"), Section "Troubleshooting". Endress+Hauser... - Page 12 – Yes: the test is successful and normal operation is resumed. Note! With this type of test, the entire safety path is not checked! The tuning fork is only included in test procedures A or B. For troubleshooting, → Operating Instructions (→ ä 6, "Supplementary device documentation"), Section "Troubleshooting". Endress+Hauser...
- Page 13 The purpose of proof-testing is to detect random device failures. The impact of systematic errors on the safety function is not covered by this test and must be assessed separately. Systematic errors can be caused, for example, by process material properties, operating conditions, buildup or corrosion. Endress+Hauser...
-
Page 14: Repair
Once the electronic insert has been replaced, proof-testing must be carried out. In the event of failure of a SIL-labeled Endress+Hauser device, which has been operated in a protection function, the "Declaration of Contamination and Cleaning" with the corresponding note "Used as SIL device in protection system"... -
Page 15: Appendix
3. Second status of the fail-safe contact? 4. Is the test procedure running correctly? – closed closed 5. Third status of the fail-safe contact? Result: Proof test passed: 1., 2., 3., 5. 2., 3., 4., 5. = OK = OK SD175en06 Endress+Hauser... -
Page 16: Technical Report
Liquiphant S, Nivotester Technical report ManagementSummary ManagementSummary Endress+Hauser... - Page 17 Liquiphant S, Nivotester ManagementSummary ManagementSummary Endress+Hauser...
- Page 18 Liquiphant S, Nivotester ManagementSummary ManagementSummary Endress+Hauser...
- Page 19 Liquiphant S, Nivotester ManagementSummary ManagementSummary Endress+Hauser...
-
Page 20: Certificate
Liquiphant S, Nivotester Certificate TUEV_Z10 03 11 20351 002 en Endress+Hauser... - Page 21 Liquiphant S, Nivotester Endress+Hauser...
- Page 22 Liquiphant S, Nivotester Endress+Hauser...
- Page 23 Liquiphant S, Nivotester Endress+Hauser...
- Page 24 Liquiphant S, Nivotester Instruments International Endress+Hauser Instruments International AG Kaegenstrasse 2 4153 Reinach Switzerland Tel. +41 61 715 81 00 Fax +41 61 715 25 00 www.endress.com info@ii.endress.com SD175F/00/EN/09.09 71103335 FM+SGML 6.0 71103335...