Safety Considerations Guide, Tricon v9.0 - Tuv-fs.com
Safety Considerations Guide, Tricon v9.0 - Tuv-fs.com Safety Considerations Guide, Tricon v9.0 - Tuv-fs.com
10 Hazard and Risk AnalysisUsing the EquationsλDU TI PFD ResultPressure Transmitters (2oo3) 2.28E-06 4380 1.00E-04Temperature Transmitters (2oo3) 2.85E-06 4380 1.56E-04Total for Sensors2.56E-04Block Valves (1oo2) 2.28E-06 4380 3.33E-05Total for Block Valves3.33E-05Tricon Controller2.00E-05PFD avg for System 3.09 E-04To determine the SIL, compare the calculated PFD avg to the figure on page 8. Inthis example, the system is acceptable as an SIS for use in SIL3 applications.Safety Life Cycle ModelThe necessary steps for designing an SIS from conception throughdecommissioning are described in the safety life cycle.Before the safety life cycle model is implemented, the following requirementsshould be met:• Hazard and operability study has been completed• SIS requirement has been determined• Target SIL has been determinedTricon Safety Considerations Guide
Hazard and Risk Analysis 11Flowchart of SafetyLife CycleStartDesignconceptual processPerform processhazard analysisand riskassessmentApply non-SISprotection layers toprevent identifiedhazards or reduceriskDevelop safetyrequirementsdocumentPerform SISconceptualdesign and verifyit meets the SRSPerform SISdetail designEstablish operationand maintenanceprocedurePre-start-upsafety reviewassessmentSIS start-upoperation,maintenance,periodic functionaltestingExitNoSIS required?YesDefine target SILSIS installation,commissioning,and pre-startupacceptance testConceptual process designModifyModify ordecommissionSIS?DecommissionSISdecommissioningS84.01 ConcernChapter 1Safety Concepts
- Page 1 and 2: TriconVersion 9Safety Consideration
- Page 3: AcknowledgementTriconex acknowledge
- Page 6 and 7: viRelated DocumentsRelated Document
- Page 8 and 9: viiiHow to Contact TriconexHow to C
- Page 10: xTrainingFor Turbomachinery Systems
- Page 13 and 14: xiCONTENTSAbout This Guide ........
- Page 15 and 16: xiiiAnalog Input Module Alarms ....
- Page 17 and 18: CHAPTER 1Safety ConceptsThis chapte
- Page 19 and 20: Safety Overview 3Protection LayersT
- Page 21 and 22: Hazard and Risk Analysis 5Hazard an
- Page 23 and 24: Hazard and Risk Analysis 7Completio
- Page 25: Hazard and Risk Analysis 9Equation
- Page 29 and 30: Hazard and Risk Analysis 13Some key
- Page 31 and 32: Safety Standards 15Safety Standards
- Page 33 and 34: Safety Standards 17Application-Spec
- Page 35 and 36: CHAPTER 2Application GuidelinesThis
- Page 37 and 38: General Guidelines 21• Under cert
- Page 39 and 40: Guidelines for Tricon Controllers 2
- Page 41 and 42: Guidelines for Tricon Controllers 2
- Page 43 and 44: Guidelines for Tricon Controllers 2
- Page 45 and 46: Guidelines for Tricon Controllers 2
- Page 47 and 48: Guidelines for Tricon Controllers 3
- Page 49 and 50: Guidelines for Tricon Controllers 3
- Page 51 and 52: Guidelines for Tricon Controllers 3
- Page 53 and 54: CHAPTER 3Fault ManagementThis chapt
- Page 55 and 56: System Diagnostics 39System Diagnos
- Page 57 and 58: Operating Modes 41Operating ModesEa
- Page 59 and 60: Module Diagnostics 43Module Diagnos
- Page 61 and 62: Module Diagnostics 45Relay Output M
- Page 63 and 64: Module Diagnostics 47System Attribu
- Page 65 and 66: CHAPTER 4Application DevelopmentThi
- Page 67 and 68: Important TriStation Commands 51Imp
- Page 69 and 70: Setting Scan Time 53Setting Scan Ti
- Page 71 and 72: Sample Safety-Shutdown Programs 55S
- Page 73 and 74: Sample Safety-Shutdown Programs 57I
- Page 75 and 76: Sample Safety-Shutdown Programs 59A
10 Hazard and Risk AnalysisUsing the EquationsλDU TI PFD ResultPressure Transmitters (2oo3) 2.28E-06 4380 1.00E-04Temperature Transmitters (2oo3) 2.85E-06 4380 1.56E-04Total for Sensors2.56E-04Block Valves (1oo2) 2.28E-06 4380 3.33E-05Total for Block Valves3.33E-05<strong>Tricon</strong> Controller2.00E-05PFD avg for System 3.09 E-04To determine the SIL, <strong>com</strong>pare the calculated PFD avg to the figure on page 8. Inthis example, the system is acceptable as an SIS for use in SIL3 applications.<strong>Safety</strong> Life Cycle ModelThe necessary steps for designing an SIS from conception throughde<strong>com</strong>missioning are described in the safety life cycle.Before the safety life cycle model is implemented, the following requirementsshould be met:• Hazard and operability study has been <strong>com</strong>pleted• SIS requirement has been determined• Target SIL has been determined<strong>Tricon</strong> <strong>Safety</strong> <strong>Considerations</strong> <strong>Guide</strong>
Change language