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.