5
2 Scope
VEGAFLEX 80 series • Two-wire 4 … 20 mA/HART
42960-EN-170410
The certificate is valid for the entire service life of all instruments that
were sold before the certificate expired!
Page 1: ...Safety Manual VEGAFLEX 80 series Two wire 4 20 mA HART With SIL qualification Document ID 42960...
Page 2: ...istics acc to IEC 61508 for versions with approval Ex d ia XP AIS 8 4 4 Characteristics acc to ISO 13849 1 for versions with approval Ex d ia XP AIS 8 4 5 Supplementary information 9 5 Setup 5 1 Gener...
Page 3: ...ale Sicherheit ist verf gbar in den Sprachen Deutsch Englisch Franz sisch und Russisch EN The current Safety Manual for Functional Safety is available in German English French and Russian language FR...
Page 4: ...related system according to IEC 61508 in the modes low demand mode or high demand mode for the measurement of the following process variables Point level detection Level measurement in liquids and bu...
Page 5: ...5 2 Scope VEGAFLEX 80 series Two wire 4 20 mA HART 42960 EN 170410 The certificate is valid for the entire service life of all instruments that were sold before the certificate expired...
Page 6: ...t depends on the safety function and the characteristics set on the sensor Character istics Monitoring upper limit val ue Monitoring lower limit value 4 20 mA Output current Switching point Output cur...
Page 7: ...133 x 10 2 T1 1 year PFDAVG 0 196 x 10 2 T1 2 years PFDAVG 0 382 x 10 2 T1 5 years PFH 0 158 x 10 6 1 h Proof Test Coverag PTC Test type6 Remaining failure rate of danger ous undetected failures PTC T...
Page 8: ...ear PFDAVG 0 206 x 10 2 T1 2 years PFDAVG 0 404 x 10 2 T1 5 years PFH 0 167 x 10 6 1 h Proof Test Coverag PTC Test type11 Remaining failure rate of danger ous undetected failures PTC Test 1 20 FIT 88...
Page 9: ...FDAVG specified above were calculated as follows for a 1oo1 architecture PFDAVG DD x MTTR PTC DU T1 2 1 PTC DU LT 2 Parameters used T1 Proof Test Interval PTC 90 LT 10 years MTTR 8 h A connected contr...
Page 10: ...adjustment is described in the operating instructions manual The documentation of the device settings is only possible with the full version of the DTM Collection For protection against unwanted or u...
Page 11: ...ing When adjustment is unlocked the safety function must be considered as unreliable This applies until the parameters are verified and the adjustment is locked again If the parameter adjustment proce...
Page 12: ...fault is outputted The fault messages are listed in the operating instructions If failures are detected the entire measuring system must be shut down and the process held in a safe state by other mea...
Page 13: ...ty function must be treated as unreli able Take into account that the function test influences downstream connected devices If necessary you must take other measures to maintain the safety function Af...
Page 14: ...FX86 4 A with reference distance 260 mm 300 mm with FX8 A without reference distance 1 Carry out a re start separate the test item at least 10 seconds from mains voltage 2 Press the menu item Start p...
Page 15: ...variable Setup with check of the process variable Proof test without checking the process variable Proof test with check of the process variable Mode Monitoring of an upper limit value Monitoring a lo...
Page 16: ...afe detected failure SU Rate for safe undetected failure S S SD SU DD Rate for dangerous detected failure DU Rate for dangerous undetected failure H Rate for failure who causes a high output current 2...
Page 17: ...17 10 Supplement C SIL conformity VEGAFLEX 80 series Two wire 4 20 mA HART 42960 EN 170410 10 Supplement C SIL conformity...
Page 18: ...18 10 Supplement C SIL conformity VEGAFLEX 80 series Two wire 4 20 mA HART 42960 EN 170410...
Page 19: ...19 Notes VEGAFLEX 80 series Two wire 4 20 mA HART 42960 EN 170410...
Page 20: ...of delivery application practical use and operat ing conditions of the sensors and processing systems correspond to the information available at the time of printing Subject to change without prior n...
