Specifications

HART Functionality
3-2
BASIC
FEATURES
AND
FUNCTIONS
Interpreting the HART icon
A beating hollow heart icon ( ) is displayed when the
375 Field Communicator is communicating with a live
HART device. A solid beating heart is displayed when
the 375 Field Communicator is communicating to a
HART loop with a device in burst mode. A hollow or solid
heart surrounded by rays ( ) indicates the 375 Field
Communicator is in shout/deaf mode, which helps the
375 communicate with a device when it is on a noisy
loop. The HART logo is displayed when communication
is not occurring. This is common when only static
parameters are listed.
USING A FAST
KEY SEQUENCE
A Fast Key sequence is a sequence of numerical button
presses, corresponding to the menu options that lead
you to a given task. The Fast Key sequences are
identical to the sequences used on the 275 HART
Communicator. See your field device documentation for
fast key sequence options.
STARTING
THE HART
APPLICATION
To start the HART Application:
1. Turn on the 375 Field Communicator.
2. Double-tap HART Application on the 375 Main
Menu. If a live HART device is connected to the 375
Field Communicator, the HART Application Online
menu displays automatically. If a device is not
connected, the HART Application main menu displays
after a few seconds.
To navigate back to the 375 Main Menu, press the
back arrow key.
From the HART Application main menu, you can
choose Offline, Online, Utility, or HART Diagnostics
functions. The rest of this section will guide you
through the HART Application menus and functions.