4Section 4: Operation And Maintenance; Safety Messages; Warnings - Emerson Rosemount 248 Reference Manual

Reference Manual
00809-0100-4825, Rev CB
Section 4
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 43
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 44
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 46
Diagnostic messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47
4.1

Safety messages

Instructions and procedures in this section may require special precautions to ensure the safety
of the personnel performing the operations. Information that potentially raises safety issues is
indicated by a warning symbol ( ). Please refer to the following safety messages before
performing an operation preceded by this symbol.
4.1.1

Warnings

Failure to follow these installation guidelines could result in death or
serious injury.

Explosions could result in death or serious injury.
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Process leaks could result in death or serious injury.
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Electrical shock could cause death or serious injury.
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Operation and Maintenance
Operation and maintenance
Make sure only qualified personnel perform the installation.
Do not remove the connection head cover in explosive atmospheres when the
circuit is live.
Before connecting a Field Communicator in an explosive atmosphere, make sure the
instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.
When sending or requesting data that would disrupt the loop or change the output of
the transmitter, set the process application loop to manual.
Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
All connection head covers must be fully engaged to meet
explosion-proof requirements.
Do not remove the thermowell while in operation.
Install and tighten thermowells and sensors before applying pressure
Use extreme caution when making contact with the leads and terminals.
Section 4: Operation and Maintenance
March 2014
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