Emerson World Class 3000 Manual de instrucciones descargar pdf (Pagina 141)

Instruction Manual

Appendix JX Rev. 1.0

January 1997

Rosemount Analytical Inc. A Division of Emerson Process Management Appendices J-13

World Class 3000

HART UNIT

INSTALLED IN

40-20 mA

SIGNAL

LOOP

ANALOG

OUTPUT

SELECTED TO

4-20 mA

CURRENT

SIGNAL

LOAD

RESISTANCE

250 OHMS

≥

250 OHM

LOAD

RESISTOR

CORRECTLY

INSTALLED (SEE

INSTALLATION)

HART UNIT

CONFIGURED

FOR IFT

HART UNIT

INSTALLED

PARALLEL

TO IFT

RECONFIGURE HART

UNIT FOR IFT.

YES

PROGRAM IFT FOR

4-20 mA OUTPUT SIGNAL.

SELECT CURRENT MODE

USING CURRENT/VOLTAGE

SELECTION SWITCH ON

IFT MICROPROCESSOR

BOARD.

CONNECT THE HART UNIT

TO THE 4-20 mA SIGNAL

LOOP. REFER TO INSTALLATION.

IF LOAD RESISTANCE IS

<250 OHMS. THE 250 OHM

LOAD RESISTOR MUST BE

USED.

INSTALL 250 OHM LOAD

RESISTOR. (SEE

INSTALLATION).

CONTACT SERVICE

REPRESENTATIVE.

USE LEAD SET TO

CONNECT HART UNIT IN

PARALLEL TO IFT. HART

UNIT MUST BE

CONNECTED TO 4-20 mA

SIGNAL LINE. (SEE

INSTALLATION).

VERIFY PROPER IFT

CONFIGURATION.

CONSULT MENU TREE

(FIGURE J-4 OF THIS

APPENDIX). REFER TO

DEVICE CONFIGURATION

SUB-MENU.

(CONTINUED FROM

SHEET 1 OF 2)

35870007

Figure J-5. Model Number 275D9E, Troubleshooting Flowchart (Sheet 2 of 2)

1 2 ... 136 137 138 139 140 141 142 143 144 145 146 ... 157 158

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