AS 1101.6-1989

1 - AS 1101.6-1989 GRAPHICAL SYMBOLS FOR GENERAL ENGINEERING - PROCESS MEASUREMENT CONTROL FUNCTIONS AND INSTRUMENTATION
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 APPLICATION.
6 - 1.3 REFERENCED DOCUMENTS.
6 - 1.4 DEFINITIONS.
6 - 1.4.1 Actuating element
6 - 1.4.2 Alarm
6 - 1.4.3 Configurable
6 - 1.4.4 Control panel
6 - 1.4.5 Converter
6 - 1.4.6 Correcting element
6 - 1.4.7 Correcting unit
6 - 1.4.8 Distributed control system (DCS)
6 - 1.4.9 Instrument
6 - 1.4.10 Locally mounted instrument
6 - 1.4.11 Local panel
6 - 1.4.12 Loop
6 - 1.4.13 Point of measurement
6 - 1.4.14 Primary element
6 - 1.4.15 Process computer
6 - 1.4.16 Programmable
6 - 1.4.17 Remote mounted instrument
6 - 1.4.18 Sensing element
7 - 1.4.19 Shared display/ shared control system
7 - 1.4.20 Tag number
7 - 1.4.21 Transducer
7 - 1.4.22 Transmitter
7 - 1.5 SIZE OF SYMBOLS AND DRAWING PRACTICE
7 - 1.6 ORIENTATION OF SYMBOLS.
8 - SECTION 2. CODES AND ABBREVIATIONS
8 - 2.1 IDENTIFYING CODE FOR INSTRUMENTFUNCTIONS (TAG NUMBER).
8 - 2.1.1 Tag number.
8 - 2.1.2 Qualifying letters.
8 - 2.1.3 Position of qualifying letters.
8 - 2.1.4 Position of function-identifying letters.
8 - 2.1.5 Position of loop number.
8 - 2.2 ABBREVIATIONS FOR POWER SUPPLY AND PURGE FLUID SUPPLIES.
10 - SECTION 3. SYMBOLS
10 - TABLE 3.1 TYPES OF LINE AND INSTRUMENT LINE SYMBOLS
11 - TABLE 3.2 DIRECTION OF FLOW, CROSSINGS, AND JUNCTIONS OF INSTRUMENT SIGNALS
12 - TABLE 3.3 POINT OF MEASUREMENT
12 - TABLE 3.4 INSTRUMENTS
14 - TABLE 3.5 BASIC SYMBOLS FOR COMPUTER-BASED FUNCTIONS
15 - TABLE 3.6 BASIC SYMBOLS FOR SHARED DISPLAY/CONTROL FUNCTIONS
16 - TABLE 3.7 INTERLOCKS
16 - TABLE 3.8 CORRECTING ELEMENTS
17 - TABLE 3.9 BASIC ACTUATING ELEMENTS
18 - TABLE 3.10 BASIC ACTUATORS
20 - TABLE 3.11 EXAMPLES OF CORRECTING UNITS
22 - TABLE 3.12 FLOW PRIMARY ELEMENTS
25 - TABLE 3.13 LEVEL INSTRUMENT CONNECTIONS
27 - TABLE 3.14 PRESSURE REGULATORS, SELF-ACTUATED
28 - TABLE 3.15 SIGNAL MODIFIERS
32 - TABLE 3.16 BINARY LOGIC, ACTION OF BINARY SIGNALS ON ANALOG SIGNALS
34 - SECTION 4. EXAMPLES OF USE
34 - 4.1 INDICATING, RECORDING, AND ALARM FUNCTIONS.
34 - 4.1.1 Flowrate indicator, locally mounted.
34 - 4.1.2 Flowrate recorder, locally mounted.
34 - 4.1.3 Conductivity recorder, panel-mounted.
34 - 4.1.4 Pressure differential recorder, locally mounted.
34 - 4.1.5 High pressure alarm, locally mounted.
34 - 4.1.6 Low pressure alarm, locally mounted.
35 - 4.1.7 Level indicator, locally mounted.
35 - 4.1.8 Level indicator, locally mounted, point of measurement inside vessel.
35 - 4.1.9 Local low pressure alarm with simultaneous emergency action of correcting unit.
35 - 4.1.10 Pressure signal to computer.
35 - 4.1.11 Temperature signal to computer.
36 - 4.1.12 Flow recording and control by computer.
36 - 4.1.13 Control valve.
36 - 4.2 BLIND TRANSMITTERS (NEITHER INDICATING NOR RECORDING).
36 - 4.3 AUTOMATIC CONTROLLERS.
36 - 4.3.1 Flowrate recording controller.
37 - 4.3.2 Flow recording and indication in control room.
37 - 4.3.3 Pressure recording.
37 - 4.3.4 Flow recording with access in local and indication in central control room
38 - 4.4 INTEGRATING INSTRUMENTS.
38 - 4.5 MULTIPLE DISPLAY.
38 - 4.6 MULTIPOINT INSTRUMENTS.
39 - 4.7 MULTIVARIABLE DATA.
39 - 4.7.1 General.
40 - 4.7.2 Automatic scanning.
41 - 4.8 RATIO CONTROL INSTRUMENTS.
41 - 4.9 CASCADE CONTROL.
41 - 4.9.1 Temperature cascade control of flow.
42 - 4.9.2 Cascade control and indication of temperature.
42 - 4.9.3 Indication and cascade control of flow level.
43 - 4.10 MULTIVARIABLE CONTROL SYSTEMS.
44 - 4.11 PROGRAM CONTROL.
44 - 4.12 TIME-CYCLE OPERATION.
44 - 4.13 HAND OPERATION.
44 - 4.13.1 Remote adjustment of the set value of a controller.
44 - 4.13.2 Local (indirect) adjustment of a correcting unit.
45 - 4.13.3 Automatic actuating element with integral manual actuating element.
45 - 4.14 SONIC LEVEL ELEMENT AND TRANSMITTER.
46 - 4.15 ON-OFF VALVE SYMBOLISM.
47 - 4.16 COMPLEX INTERLOCKING SYSTEMS.
48 - 4.17 LOOPS WITH COMMON ITEMS GIVEN A SEPARATE LOOP NUMBER.
49 - 4.18 COMPLEX CONTROL SYSTEM.
50 - 4.19 MULTIPLE INSTRUMENTS.
50 - 4.19.1 Multiple dual connection level instruments.
50 - 4.19.2 Displacer type level transmitter with an integral controller.
50 - 4.19.3 Overlapping level instruments for long range or multiphase application.
50 - 4.19.4 Flow instruments operating from the same primary element but having separate connection.
51 - 4.19.5 Differential type flow instruments operating from the same primary element and the same connections.
51 - 4.19.6 Flow, pressure, and temperature instruments in the same enclosure.
51 - 4.19.7 Flow and pressure instruments in separate enclosures operating from the same connections.
51 - 4.19.8 Separate pressure instruments operating from a single connection.
52 - 4.20 SHARED DISPLAY/CONTROL EXAMPLES.
52 - 4.20.1 Flow recording on shared display.
52 - 4.20.2 Shared pressure control.
53 - 4.20.3 Cascade control.
54 - 4.21 MOTOR CONTROL.

Specifies symbols and an identifying code system for depicting instruments, instrumentation systems, process computers, and shared display and control functions in the field of process measurement and control in the process industries. Examples of use of the symbols are given.

This Standard specifies symbols and an identifying code system for depicting instruments, instrumentation systems, process computers and shared display/control functions in the field of process measurement and control in the process industries.

status changes to obsolescent on 29-10-2004