Instrument Symbols and Identifi

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

DATE

10/06/07 GENERALLY REVISED AND REISSUED

14/03/07 ORIGINAL ISSUE

03/11/07 17/03/08 16/09/08

GENERALLY REVISED AND REISSUED REVISED WITH MOTOR CONTROL SCHEME REISSUED WITH REVISED MOTOR CONTROL SCHEME

INSTRUMENT SYMBOLS AND IDENTIFICATION

ESSAR ENGINEERING CENTRE , MUMBAI

DETAILS OF REVISION

DOCUMENT NO

EECS-50-100-003

GEN-004-R1

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

CLAUSE

4.0 1.0 3.0 INTRODUCTION CODES AND STANDARDS INSTRUMENT IDENTIFICATION INSTRUMENT TAG NUMBERING 2.0

ANNEXURE -1: MOTOR CONTROL SCHEMES ANNEXURE -2: MOV CONTROL SCHEMES

INDEX

DESCRIPTION

INSTRUMENT SYMBOLS AND IDENTIFICATION4 7 11

ESSAR ENGINEERING CENTRE , MUMBAI

DOCUMENT NO

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

1.01.11.1.1 1.1.2

INTRODUCTIONGENERALThis technical description is issued to cover the minimum technical requirements for Instrument Symbols. The Instrument Symbols shall be strictly in accordance with this document / codes and standards referred to in the attached documents.

1.1.3

Any conflict generated within this document shall be referred to the client in writing for approval.

1.2

DEFINITIONSFor this technical description the following definitions are applicable:

Client: the company acting on clients behalf.

Contractor / Buyer: The party which carries out engineering and/or procurement and/or construction.

Seller: Any manufacturer, supplier or seller who is appointed by the Contractor/Buyer and is responsible for the supply of materials or equipment or services.

Wherever the word shall has been used, its meaning is to be understood as mandatory.

2.0

CODES AND STANDARDSCodes and standards applicable are as per documents. The basis for this specification is the ANSI/ISA-S5.1-1984 standard. Note: - Deviations exist between this specification and ANSI/ISA-S5.1, the main differences being the use of the certain letter designations, see subsection 3.5. REFERENCE DOCUMENTS EECS-50-100-100 EECS-50-100-005 EECS-50-100-004 Instrument Design Basis Instrument Deliverables. Instrumentation - Indices and Listing -Nomenclature.

INSTRUMENT SYMBOLS AND IDENTIFICATIONESSAR ENGINEERING CENTRE , MUMBAI

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

3.03.1

INSTRUMENT IDENTIFICATIONFor administrative purposes all instrument components and functions shall be identified by means of a unique tag number. A tag number is a combination of letters and numbers used to uniquely identify instrument components and instrument functions. A combination of electrically interconnected instrument components and functions performing a basic operation is called an instrument loop and shall be identified by means of a unique loop number. A loop number is the unique identification of a combination of instrument components and/or instrument functions performing a dedicated instrument safeguarding, control and/or monitoring function.

3.2

Traditionally, all components/functions shall be shown in individual balloons: TE-0101 TT-0101 Temperature element (e.g. RTD) Temperature transmitter

TIC-0101 Temperature controller TV-0101 Control Valve

Components in the instrument index are similar to those above with format mentioned in paragraph 3.3.

INSTRUMENT SYMBOLS AND IDENTIFICATIONESSAR ENGINEERING CENTRE , MUMBAI

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

3.3

Components/functions in the instrument index as per PCD/typical loop are in principle identical to the traditional listing as follows. TAG NUMBER: PAATMFFF-SLLLXX

P AA T M FFF S LLL XX

= = = = = = = =

Phase number for Expansion project (1= Phase 1 Expansion, 2 = Phase 2 Expansion) Train or Area. Type (first letter). Modifier. Function. First digit of Section number. (Always 0.) Sequence number. (From 001..999) Tag number suffix. (A, B, C,etc.)

e.g:-

110PDT -0103 110PDC -0103 110PDV -0103A 110PDV -0103B 110HS -0174AB

Note: The prefix 110 (Unit No.) shall not appear in the instrument "balloon", but shall be mentioned in a note on the P&ID, identifying the Train or Area number relating to the instrumentation on the P&ID. For Unit Numbers please refer Table in 7.1 Annexure-I: Unit Numbers of the Project Engineering Procedure For Document Numbering PPPO-0000-000-MGT-000001.

3.4

LOOP NUMBER AND TAG NUMBER FORMAT/BREAKDOWNThe following loop number and tag number format/breakdown applies to all loop-based and stand-alone Instrumentation. LOOP NUMBER: P AA T S LLL X = = = = = = PAAT-SLLLX e.g.:- 110P-0103A Phase number for Expansion project (1= Phase 1 Expansion, 2 = Phase 2 Expansion) Train or Area. Type (first letter). First digit of Section number (Always 0.) Sequence number. (From 001..999) Loop number suffix. (A, B, C or S)

INSTRUMENT SYMBOLS AND IDENTIFICATIONESSAR ENGINEERING CENTRE , MUMBAI

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

3.5

IDENTIFICATION LETTERSIDENTIFICATION LETTERS FIRST LETTER Measured or initiating variable A B C D E Analysis Burner, combustion User's choice Density Voltage Differential Sensor (primary element) Ratio, fraction, factor High Indicate, Glass, Viewing Device Control station, panel, cabinet Lamp / Light Low Control Close Modifier SUCCEEDING LETTER Readout or passive function Alarm Output function Modifier

Active

User's choice

F G H I J K L M N O P Q R S T U V

Flow rate

Hand Current (electric) Power Scan Time, time schedule Time rate of change Level Motor / Drive User's choice User's choice Pressure, vacuum Quantity Radiation Speed, frequency Temperature Multivariable / Safety(ESD) Vibration, mechanical analysis Integrate, totalize Reactive Safety

User's choice Orifice restriction Point(Test connection)

User's choice

User's choice Open

Record (hardwired) Switch Multifunction Transmit Multifunction Valve,damper, louver, final control element Well

W X Y Z

Weight User's choice Skin

User's choice Solenoid

User's choice Relay, compute, convert

User's choice

Position

INSTRUMENT SYMBOLS AND IDENTIFICATIONESSAR ENGINEERING CENTRE , MUMBAI

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The drawing, design and details given on this format are the property of ESSAR ENGINEERING CENTRE. They are merely loaned on the borrower's express agreement that they will not be reproduced, copied, exhibited or used, except in the limited way permitted by a written consent given by the lender to the borrower for the intended use.

3.6

SEQUENCE NUMBERFor each measured or initiating variable the loop number sequence will restart. Example: Loop 110P-0103 and loop 110L-0103 may coexist.

3.7

LOOP NUMBER AND TAG NUMBER UNIQUENESSTo maintain identification uniqueness all noncalibrated / Local instruments (*) the numbers shall not be repeated for the instruments having same measured variable. The nos for transmitters (PT) and local instruments like Relief valve (PSV), Pressure Gauge (PI) shall not be repeated. Note: -.* Typical examples of noncalibrated / Local Instruments: Relief valves/bursting discs. Self-regulating valves (temperature and pressure). Level gauges, Temperature Gauges, Pressure gauges, Restriction Orifices, Test Thermowells, Test Points etc.

3.8

All Field Gauges shall use the f