This document specifies general requirements for instrumentation and specific requirements for process control and automation systems on wastewater treatment plants for more than 50 PT. NOTE 1 Because of the rapid rate of development of sensor and control equipment, this document is intended as an overview and uses examples and general requirements, not detailed equipment specifications. Detailed information additional to that contained in this document can be obtained by referring to the Bibliography. NOTE 2 Although EC directives become matters of law in member states of the EU and some other situations, this standard is intended for wider use and hence those directives with clear technical guidance of a type that would generally be appropriate in a standard are referenced in the text and listed in the Bibliography. The alternative of listing requirements copied from directives would potentially create unacceptable conflict when directives are revised.<\/p>\n
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|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 4 Symbols and abbreviations <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 5 Instrumentation and control requirements 5.1 General requirements 5.2 Instruments 5.3 Instrumentation systems 5.3.1 Instrumentation systems <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.3.2 Instrumentation 5.3.3 Cabling, cable bracketry and cable conduits 5.3.4 Operation and maintenance of instrumentation <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.4 Process control and automation 5.4.1 General requirements 5.4.2 Specification and installation requirements for process control and automation systems <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6 Design and implementation 6.1 Initial design 6.2 Detailed design <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6.3 Commissioning, test and take over <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Annex A (informative)Guidance for the selection of instrumentation, control and automation systems A.1 General <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | A.2 Instrumentation life cycle A.2.1 Overview A.2.2 Stage 1 – Instrumentation purpose A.2.3 Stage 2 – Instrumentation specification <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | A.2.4 Stage 3 – Installation A.2.5 Stage 4 – Operation and maintenance <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | A.2.6 Stage 5 – Review and replacement A.3 Examples of basic instrumentation and control systems A.3.1 General A.3.2 Simple relay-based control systems <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | A.3.3 Programmable logic controller (PLC) based instrumentation and control systems <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | A.3.4 Advanced process control <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | A.4 The level of instrumentation, control and automation in wastewater systems A.4.1 Overview A.4.2 Determination of appropriate instrument and control systems for trickling reactor plants <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | A.4.3 Determination of appropriate instrument and control systems for activated sludge plants <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Wastewater treatment plants – Control and automation<\/b><\/p>\n |