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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 HART Mode Users Guide Calibrating a Supported HART Transmitter .................................................................... 15 Loop Test.................................................................................................................... 16 Output Trim................................................................................................................. 17 Sensor Trim................................................................................................................ 17 Cloning a Transmitter...................................................................................................... 19 Index ii List of Tables Table Title Page 1. Supported vs. Non-Supported Instruments............................................................................ 7 iii 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 v 744 HART Mode Users Guide Documenting Process Calibrator HART Mode Introduction w Warning To avoid electric shock, read the Safety Information in the 744 Users Manualbefore you use the Fluke 744 Documenting Process Calibrator. With analog transmitters, you must make a hardware adjustment during calibration. With HARTa (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 Manualfor safety, analog mode operating instructions, specifications, and other general information. All of the calibrator functions described in the 744 Users Manualare 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: Documenting Process Calibrator HART Mode Connecting to a HART Transmitter Connecting to a HART Transmitter To connect to and begin to communicate with a HART transmitter, refer to Figure 1 and proceed as follows: Note If you only want a communication ...