Fluke HART 744 Manual de usuario

744

Documenting Process Calibrator

HARTMode Users Guide

PN 691292

December 1998

All product names are trademarks of their respective companies.

Table of Contents

Title Page

Introduction..................................................................................................................... 1

How to Contact Fluke ..................................................................................................... 2

Connecting to a HART Transmitter ................................................................................ 3

Supported vs. Generic Transmitters............................................................................... 6

Communication Operations............................................................................................ 8

Viewing Process Variables ........................................................................................ 8

Setup Operations....................................................................................................... 8

Basic ..................................................................................................................... 8

Sensor................................................................................................................... 10

Device Identification.............................................................................................. 10

HART Output ........................................................................................................ 11

HART Information................................................................................................. 11

Service Operations .................................................................................................... 12

Abort Softkey ............................................................................................................. 12

Interaction between Analog Mode and HART Mode...................................................... 12

Understanding HART Calibration................................................................................... 13

744 HART Mode Menus for Adjustment......................................................................... 13

744

HART Mode Users Guide

Calibrating a Supported HART Transmitter .................................................................... 15

Loop Test.................................................................................................................... 16

Output Trim................................................................................................................. 17

Sensor Trim................................................................................................................ 17

Cloning a Transmitter...................................................................................................... 19

Index

iii

List of Tables

Table Title Page

1. Supported vs. Non-Supported Instruments............................................................................ 7

744

HART Mode Users Guide

List of Figures

Figure Title Page

1. Connecting to a HART Transmitter........................................................................................ 5

2. 744 HART Mode Menu Tree.................................................................................................. 9

3. Block Diagram of a HART Transmitter .................................................................................. 14

744

HART Mode Users Guide

Documenting Process Calibrator HART Mode

Introduction

wWarning

To avoid electric shock, read the Safety

Information in the

744 Users Manual

before

you use the Fluke 744 Documenting Process

Calibrator.

With analog transmitters, you must make a hardware

adjustment during calibration. With HART(Highway-

Addressable Remote Transducer) transmitters,

adjustments are by remote command. These adjustments

require the use of a communication tool as well as a

calibrator. The Fluke 744, hereafter called “calibrator,”

provides communication and calibration functions in one

tool.

This manual describes how to use HART mode, which is

active when the calibrator is communicating over its serial

HART interface to a HART transmitter. Refer to the

744 Users Manual

for safety, analog mode operating

instructions, specifications, and other general information.

All of the calibrator functions described in the

744 Users

Manual

are available and can be used with HART

transmitters. The only transmitters addressed in this

manual are HART transmitters.

744

HART Mode Users Guide

How to Contact Fluke

To contact Fluke, call:

USA and Canada:

1-888-99-FLUKE (1-888-993-5853)

Europe: +31 402-678-200

Japan: +81-3-3434-0181

Singapore: +65-*-276-6196

Anywhere in the world: +1-425-356-5500

Or visit us on the World Wide Web: www.fluke.com

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