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Contents

VEGACAL series 60 • Two-wire 4 … 20 mA/HART

35593-EN-181129

Contents

1 Functional safety ...................................................................................................................... 3

1.1 General information .......................................................................................................... 3

1.2 Planning ........................................................................................................................... 4

1.3 Instrument parameter adjustment ..................................................................................... 6

1.4 Setup ................................................................................................................................ 7

1.5 Reaction during operation and in case of failure ............................................................... 7

1.6 Recurring function test ..................................................................................................... 8

1.7 Safety-related characteristics ........................................................................................... 8

2 Supplement ............................................................................................................................ 11

Editing status: 2018-11-29

Содержание VEGACAL 60 Series

Страница 1: ...Safety Manual VEGACAL series 60 Two wire 4 20 mA HART Document ID 35593...

Страница 2: ...1 Functional safety 3 1 1 General information 3 1 2 Planning 4 1 3 Instrument parameter adjustment 6 1 4 Setup 7 1 5 Reaction during operation and in case of failure 7 1 6 Recurring function test 8 1...

Страница 3: ...ant architecture is excluded The SIL conformity is confirmed by the verification documents in the appendix SIL Safety Integrity Level HFT Hardware Fault Tolerance SFF Safe Failure Fraction PFDavg Aver...

Страница 4: ...According to IEC 61511 1 paragraph 11 4 4 the failure tolerance HFT can be reduced by one for service proven subsystems if the fol lowing conditions are met The instrument is service proven Only proce...

Страница 5: ...responding portions of the failure rates must be assigned to the dangerous failures The stated values in chapter Safety relevant characteristics can thus worsen The processing unit must correspond to...

Страница 6: ...s e g HART I C Bus are not used for transmission of safety relevant information The measuring system should be used appropriately taking pressure temperature density dielectric value and chemical prop...

Страница 7: ...rized modification the set parameters must be protected against unintentional access Activate the password protection in the adjustment software Activate the PIN on the display and adjustment module A...

Страница 8: ...hitectures it is a good idea to verify the effect of the redundancy through recurring function tests at appropriate intervals Please carry out the test in such a way that the correct safety function i...

Страница 9: ...F MTTF MTTR 0 93 x 106 h E013 no measured value available 10 sek E036 E037 no executable sensor software 1 h Single channel architecture SIL SIL2 HFT 0 Instrument type Type B Applies to overfill and d...

Страница 10: ...years Multiple channel architecture If the measuring system is used in a multiple channel architecture the safety relevant characteristics of the selected structure of the meas chain must be calculat...

Страница 11: ...11 2 Supplement VEGACAL series 60 Two wire 4 20 mA HART 35593 EN 181129 2 Supplement...

Страница 12: ...12 2 Supplement VEGACAL series 60 Two wire 4 20 mA HART 35593 EN 181129...

Страница 13: ...13 Notes VEGACAL series 60 Two wire 4 20 mA HART 35593 EN 181129...

Страница 14: ...14 Notes VEGACAL series 60 Two wire 4 20 mA HART 35593 EN 181129...

Страница 15: ...15 Notes VEGACAL series 60 Two wire 4 20 mA HART 35593 EN 181129...

Страница 16: ...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...