DSGH Installation and Operation Guide 21
Introduction
Communicating with the gauge
The gauge is a transmitter that produces the current loop signal directly at
the measurement site.
Use a field communicator or HART modem and Ohmview 2000 software
with a PC to enable:
• Initial setup
• Calibration
• Other communication with the gauge
You can make a connection anywhere along the 4 mA ... 20 mA current-
loop line. After setup and calibration of the gauge, there are no everyday
requirements for external electronics.
Using a field communicator
VEGA’s gauge is compatible with the Emerson 375 Field Communicator or
equivalent.
To function, the minimum load resistance on the 4 mA ... 20 mA loop must
be 250 . See the instruction manual for your field communicator for
information about:
•Key usage
• Data entry
• Equipment interface
To effectively use the gauge features, you must use VEGA's device
description (DD) to program the HART communicator. You can purchase a
field communicator, programmed with the DD, through VEGA (VEGA part
number 244880).
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