MTD 249-645A Manual de usuario descargar pdf (Pagina 6)

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X X X

STOP-START HAND SWITCH MOMENTARY CONTACT SWITCHES

ON AND OFF EVENT LIGHTS

(CONTROLLED DEVICE WILL NOT RESTART ON RETURN

OF POWER AFTER POWER FAILURE).

VOLTAGE

FREQUENCY

CURRENT

PNEUMATIC

PULSE FREQUENCY

PULSE DURATION

DIGITAL

ANALOG

CURRENT TO PNEUMATIC

TRANSDUCER (BACK OF

RESISTANCE

HYDRAULIC

ON-OFF HAND SWITCH. MAINTAINED CONTACT SWITCH

(CONTROLLED DEVICE WILL RESTART ON RETURN OF

POWER AFTER POWER FAILURE).

(*)

(+)

PACKAGE SYSTEM

EQUIPMENT

= GATE

= AIR RELEASE VALVE

= EJECTOR

= MECHANICAL EQUIPMENT

= AIR AND VACUUM RELEASE VALVE

AVRV

PANEL, IN A FLOW LOOP)

FIELD MOUNTED

REAR-OF-PANEL MOUNTED

(OPERATOR INACCESSIBLE)

PANEL MOUNTED

(OPERATOR ACCESSIBLE)

MCC MOUNTED

3 TYPICAL SETS OF

2 SIGNALS EACH.

TOTAL OF 6 SIGNALS.

INTERFACE TO OR FROM

PROCESS EXTERNAL TO

PROJECT

NON-CONNECTING

LINES

PROCESS OR

INITIATING VARIABLE

READOUT OR

PASSIVE FUNCTION

GLASS, GAUGE

VIEWING DEVICE

TIME RATE

OF CHANGE

VIBRATION, MECHANICAL

ANALYSIS

VALVE, DAMPER,

LOUVER

EVENT, STATE OR

PRESENCE

RELAY, COMPUTE,

CONVERT

DRIVE, ACTUATOR,

UNCLASSIFIED FINAL

CONTROL ELEMENT

POINT (TEST)

CONNECTION

RATIO

(FRACTION)

INTEGRATE,

TOTALIZE

MIDDLE,

INTERMEDIATE

= PROCESS INTERFACE

= SIGNAL INTERFACE

= DESTINATION DRAWING NO.

= SOURCE DRAWING NO.

AUTO-MANUAL

AFD

CCS

COMPUTER-MANUAL

COD

CHEMICAL OXYGEN DEMAND

CP-X

CONTROL PANEL NO. X

DIRECT CURRENT

DISSOLVED OXYGEN

FREE CHLORINE RESIDUAL

FCL

FOS

FAST-OFF-SLOW

FOSA

FAST-OFF-SLOW-AUTO

FOSR

FAST-OFF-SLOW-REMOTE

FP-W-X

FORWARD-REVERSE

HOA

HAND-OFF-AUTO

HOR

HAND-OFF-REMOTE

LEL

LOWER EXPLOSIVE LIMIT

LOS

LOCKOUT STOP

MCC-X

OCA

OOA

ORP

OSC

LOCAL-REMOTE

MANUAL-AUTO

MODULATE-CLOSE

MOTOR CONTROL CENTER NO. X

OPEN-CLOSE (D)

OPEN-CLOSE-AUTO

ON-OFF

ON-OFF-AUTO

OXIDATION REDUCTION POTENTIAL

OPEN-STOP-CLOSE

RM-X

HYDROGEN ION CONCENTRATION

REMOTE MULTIPLEXING MODULE NO. X

CENTRAL CONTROL SYSTEM

OCR

OOR

OPEN-CLOSE-REMOTE

ON-OFF-REMOTE

AVG

SUM

SSC

TCL

TURB

VIB

VIBRATION

SUPERVISORY SET POINT CONTROL

TOTAL CHLORINE RESIDUAL

TURBIDITY

DIFFERENCE

MULTIPLY

DIVIDE

CHARACTERIZED

SQUARE ROOT

AVERAGE

SELECT HIGHEST SIGNAL

SELECT LOWEST SIGNAL

f(x)

REMOTE TELEMETRY UNIT NO. X

RTU-X

SLOWER-FASTER

START-STOP

BIAS

PROCESS OR SIGNAL LINE

CONTINUATION N=1,2,3,ETC

N N

DCS

DISTRIBUTED CONTROL SYSTEM

DCU

DISTRIBUTED CONTROL UNIT

PLC

PROGRAMMABLE LOGIC CONTROLLER

ISR

INTRINSICALLY SAFE RELAY

PROCESS (OPEN CHANNEL)

PNEUMATIC SIGNAL

FILLED SYSTEM SIGNAL

CONNECTING LINES

HYDRAULIC SYSTEM SIGNAL

BUILDING OR

FACILITY BOUNDARY

PROCESS (CLOSED CONDUIT,

DASHED LINE INDICATES

ALTERNATE FLOW STREAM)

ANALOG SIGNAL

(4 TO 20 mAdc, ETC.)

DISCRETE SIGNAL

(ON/OFF, ETC.)

DATA LINK

MSC

MANUFACTURER SUPPLIED CABLE

FIRST LETTER(S)

SUCCEEDING LETTER(S)

CLARIFYING ABBREVIATIONS

(A)

(B)

(2)

3(2)

PARALLELING LINES

(A)

TOTAL OF 2 SIGNALS

(B)

CL etc.

UNIT NUMBER

I/P

LETTER

MODIFIER

OUTPUT FUNCTION

MODIFIER

DENSITY (S.G)

VOLTAGE

FLOW RATE

HAND (MANUAL)

POWER

LEVEL

MOTION

TEMPERATURE

POSITION

ALARM

DIFFERENTIAL

CONTROL

GATE

HIGH

INDICATE

SCAN

CONTROL STATION

LIGHT (PILOT)

LOW

RECORD OR PRINT

SAFETY

SWITCH

TRANSMIT

WELL

ANALYSIS (+)

UNCLASSIFIED (+) UNCLASSIFIED (+)UNCLASSIFIED (+) UNCLASSIFIED (+)

BURNER, COMBUSTION

MOMENTARY

ORIFICE, RESTRICTION

PRESSURE, VACUUM

QUANTITY

RADIATION

SPEED, FREQUENCY

WEIGHT, FORCE

X AXIS

Y AXIS

Z AXIS

FIRST-LETTER

SUCCEEDING-LETTERS

PRIMARY ELEMENT, SENSOR

TORQUE

MULTIVARIABLE

MULTIFUNCTION MULTIFUNCTION MULTIFUNCTION

WHEN USED, EXPLANATION IS SHOWN ADJACENT TO INSTRUMENT SYMBOL. SEE ABBREVIATIONS AND LETTER SYMBOLS.

TABLE BASED ON THE INSTRUMENTATION, SYSTEMS, AND AUTOMATION SOCIETY (ISA) STANDARD.

WHEN USED, DEFINE THE MEANING HERE FOR THE PROJECT

COMPUTER FUNCTION

PLC FUNCTION

= PUMP

= TANK

ARV

RIO

REMOTE I/O UNIT

GENERAL INSTRUMENT

OR FUNCTIONAL SYMBOLS

EXAMPLE SYMBOLS

INSTRUMENT IDENTIFICATION LETTERS TABLE

EXAMPLE:

TRANSDUCERS

SPECIAL CASES

INSTRUMENT IDENTIFICATION

LINE LEGEND

SELF CONTAINED VALVE &

GENERAL NOTES

EQUIPMENT TAG NUMBERS

INTERFACE SYMBOLS

SHARED DISPLAY,

SHARED CONTROL

ALTERNATING CURRENT

LOOP NUMBER

CURRENT (ELECTRICAL)

TIME, TIME SCHEDULE

PPLU

PROCESS NUMBER

FIT

USER’S CHOICE (*)USER’S CHOICE (*)

= INTERFACE LETTER

D-XXXX

XXXX

= EQUIPMENT NUMBER

USER’S CHOICE (*)

ISB

INTRINSICALLY-SAFE BARRIER

MICROFILTER

MOTOR STARTER

ADJUSTABLE FREQUENCY DRIVE

RPM

REVOLUTIONS PER MINUTE

REM

REMOTE

LCP

LOCAL CONTROL PANEL

HMI

HUMAN-MACHINE INTERFACE

CHLORINE (TYPICAL: USE STANDARD CHEMICAL

ELEMENT ABBREVIATION)

X = PANEL NUMBER)

FIELD PANEL NO. WX (W = UNIT PROCESS NUMBER

ABBREVIATIONS &

LETTER SYMBOLS

COMPONENTS AND PANELS SHOWN WITH A SINGLE DIAMOND ( )

ARE TO BE PROVIDED AS PART OF THE PROCESS

INSTRUMENTATION AND CONTROL SYSTEM.

COMPONENTS AND PANELS SHOWN WITH A DOUBLE

ASTERISK ( ) ARE TO BE PROVIDED AS PART OF A

PACKAGE SYSTEM.

THIS IS A STANDARD LEGEND. THEREFORE, NOT ALL OF THIS

INFORMATION MAY BE USED ON THIS PROJECT.

177889

W PEARSON

APPROVED-BY

CHECKED-BY

LEGEND

GENERAL

DESCRIPTION

DATE

APVR

BAYOU LAFOURCHE

PROCESS AND INSTRUMENTATION

G-11

M DUNN

PROJ

DATE

NO.

DSGN

REVISION

CHK

APVD

THIS DOCUMENT, AND THE IDEAS AND DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS THE PROPERTY OF

CH2M HILL AND IS NOT TO BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2MHILL.

REUSE OF DOCUMENTS:

SHEET

DWG

VERIFY SCALE

BAR IS ONE INCH ON

ORIGINAL DRAWING.

1 2 3 4 5 6

ISSUED FOR 30% REVIEW

APVR

DATE

DESCRIPTION

SEPT 2005

MISSISSIPPI RIVER

WATER REINTRODUCTION

INTO BAYOU LAFOURCHE PHASE 2

LOUISIANA DEPARTMENT OF

NATURAL RESOURCES

PRELIMINARY

NOT FOR

CONSTRUCTION

1 2 3 4 5 6 7 8 9 10 11 ... 14 15

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MTD 249-645A Manual de usuario Pagina 6

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