Emerson 475, User Manual

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Learning the Basics
2-23
MAINTENANCE
Any maintenance, repair, or replacement of components not listed below must be
performed by specially trained personnel at authorized service centers. You can
perform common maintenance procedures on the 475 Field Communicator, as
described below:
• Cleaning the exterior. Use only a dry, lint-free towel or dampen the towel with a mild
soap and water solution.
• Charging, removing, and replacing the battery.
• Removing and replacing the System Card.
• Removing and replacing the stand.
• Ensuring that all exterior screws are sufficiently tightened.
• Ensuring that the communication terminal recess is free of dirt and debris (does not
require disassembly).
Running a Self Test
There is no need, nor is it possible, to perform a manual self test with the 475 Field
Communicator. Testing features are done automatically. A warning message appears if
a fault condition is found during these tests.
Calibrating
It is not necessary or possible to calibrate the 475 Field Communicator. The 475 Field
Communicator is a communication interface that communicates digitally with HART
and F
OUNDATION
fieldbus devices.
Voltage measurements made by the 475 Field Communicator are for use in detection
of power or noise on a network, and are for reference purposes only. NIST standards
are not applicable to the 475 Field Communicator.