HART 744
Table of contents
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744
Documenting Process Calibrator
HART Mode Users Guide
®
PN 691292
December 1998
© 1998 Fluke Corporation, All rights reserved. Printed in U.S.A.
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
i
744
HART Mode Users Guide
Index
Calibrating a Supported HART Transmitter .................................................................... 15
Loop Test.................................................................................................................... 16
Output Trim................................................................................................................. 17
Sensor Trim................................................................................................................ 17
Cloning a Transmitter...................................................................................................... 19
ii
List of Tables
Table Title Page
1. Supported vs. Non-Supported Instruments............................................................................ 7
iii
744
HART Mode Users Guide
iv
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
v
744
HART Mode Users Guide
vi
Documenting Process Calibrator HART Mode
Introduction
w Warning
To avoid electric shock, read the Safety
Information in the
you use the Fluke 744 Documenting Process
Calibrator.
With analog transmitters, you must make a hardware
adjustment during calibration. With HART
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.
744 Users Manual
before
(Highway-
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
instructions, specifications, and other general information.
All of the calibrator functions described in the
Manual
transmitters. The only transmitters addressed in this
manual are HART transmitters.
are available and can be used with HART
for safety, analog mode operating
744 Users
1
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