World Class 3000

Instruction Bulletin

Appendix J Rev. 1.2 May 2005

INSTALLATION

J-4 HART COMMUNICATOR SIGNAL LINE CONNECTIONS

The HART Communicator can connect to the IFT analog output signal line at any wiring ter- mination point in the 4-20 mA current loop.

There are two methods of connecting the HART Communicator to the signal line. For applica- tions in which the signal line has a load resis- tance of 250 ohms or more, refer to method 1.

For applications in which the signal line load re- sistance is less than 250 ohms, refer to method 2.

a.Method 1, For Load Resistance > 250 Ohms

Refer to Figure J-2 and the following steps to connect the HART Communicator to a signal line with 250 ohms or more of load resistance.

 

 

 

 

 

CURRENT/VOLTAGE SELECTION SWITCH

J1

 

 

C

SW3

TO "CURRENT" POSITION

 

 

 

D

 

 

 

 

 

B

 

 

 

 

 

 

A

 

 

 

 

JM6

 

ON

OFF

 

 

 

 

 

 

 

 

MICROPROCESSOR

J3

J2

JM8

 

SW2

 

BOARD

 

3D39513G, REV 13

 

 

 

 

 

MICROPROCESSOR

 

 

 

 

 

BOARD 10

 

 

 

INTERCONNECT BOARD

 

 

 

 

J1

 

 

 

 

 

J2

 

 

 

 

 

 

J3

 

 

ANALOG OUTPUT

 

 

 

 

 

 

 

 

 

J4

 

 

RL > 250

 

 

 

J5

 

 

 

 

 

 

J6

 

O2

4-20 MA SIGNAL LINE

 

 

 

J7

 

 

 

 

 

 

J8

 

 

 

 

 

 

J9

 

 

 

 

 

 

 

JM1

 

ANALOG OUTPUT DEVICE

 

 

 

 

 

 

INTELLIGENT FIELD

 

LOOP

 

 

TRANSMITTER IFT 3000

CONNECTORS

 

 

 

 

 

 

 

HART

COMMUNICATOR

MODEL 275/375

LEAD SET

HART COMMUNICATOR

REAR PANEL

37840018

Figure J-2. Signal Line Connections, > 250 Ohms Load Resistance

Rosemount Analytical Inc. A Division of Emerson Process Management

Appendices J-3

Page 169
Image 169
Emerson 3000 instruction manual Hart Communicator Signal Line Connections, Method 1, For Load Resistance 250 Ohms

3000 specifications

The Emerson 3000 is a cutting-edge control system designed to enhance the efficiency, reliability, and precision of industrial operations. Employed across various sectors such as oil and gas, pharmaceutical, food and beverage, and power generation, the Emerson 3000 has gained recognition for its robustness and versatility.

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