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ANSI/ISA-5.1-2009 Instrumentation Symbols and Identification (на англ. языке)
Стандарт ISA-5.1-2009, разработанный американским сообществом стандартов автоматизации Inteational Society of Automation, используется в качестве дополнения к несколько устаревшему ГОСТ 21.404-85 "Обозначения условные приборов и средств автоматизации в схемах". Здесь можно найти необходимую информацию для оформления инструментальной, функциональной и электрической схем автоматизации.





Identification letters table

Graphic symbol tables

Graphic symbol dimension tables

Annex A Identification system guidelines (informative annex)

Annex B Graphic symbol guidelines (informative annex)

Table 4.1 — Identification letters

Table 5.1.1 — Instrumentation device and function symbols

Table 5.1.2 — Instrumentation device or function symbols, miscellaneous

Table 5.2.1 — Measurement symbols: primary elements and transmitters

Table 5.2.2 — Measurement symbols: measurement notations

Table 5.2.3 — Measurement symbols: primary elements

Table 5.2.4 — Measurement symbols: secondary instruments

Table 5.2.5 — Measurement symbols: auxiliary and accessory devices

Table 5.3.1 — Line symbols: instrument to process and equipment connections

Table 5.3.2 — Line symbols: instrument-to-instrument connections

Table 5.4.1 — Final control element symbols

Table 5.4.2 — Final control element actuator symbols

Table 5.4.3 — Self-actuated final control element symbol

Table 5.4.4 — Control valve failure and de-energized position indications

Table 5.5 — Functional diagramming symbols

Table 5.6 — Signal processing function block symbols

Table 5.7 — Binary logic symbols

Table 5.8 — Electrical schematic symbols

Table 6.1 — Dimensions for Tables 5.1.1 and 5.1.2

Table 6.2 — Dimensions for Tables 5.2.1, 5.2.2, 5.2.3, 5.2.4, and 5.2.5

Table 6.3 — Dimensions for Tables 5.3.1 and 5.3.2

Table 6.4 — Dimensions for Tables 5.4.1, 5.4.2, 5.4.3, and 5.4.4

Table 6.5 — Dimensions for Table 5.5

Table 6.6 — Dimensions for Table 5.6

Table 6.7 — Dimensions for Table 5.7

Table 6.8 — Dimensions for Table 5.8

Table A.1 — Typical Loop and Instrument Identification/Tag Numbers

Table A.2 — Allowable letter/number combinations for loop numbering schemes

Table A.3.1 — Allowable succeeding letter combinations for readout/passive functions

Table A.4 — Loop and Identification Tag Number suffixes

English description

This standard is intended to meet the different procedures of various users who need to identify and graphically depict measurement and control equipment and systems. These differences are recognized when they are consistent with the objectives of this standard, by providing alteative symbol and identification methods.
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