Emerson Rosemount 3144P, Reference Manual

Page: 179 / 236

169
Reference Manual
00809-0100-4021, Rev JA
Operation and Maintenance
April 2017
Operation and Maintenance
Section 5 Operation and Maintenance
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 169
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 169
Return of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 171
5.1 Safety messages
Instructions and procedures in this section may require special precautions to ensure the safety of the
personnel performing the operations. Information that raises potential safety issues is indicated by a
warning symbol ( ). Refer to the following safety messages before performing an operation preceded
by this symbol.
5.2 Maintenance
The transmitter has no moving parts and requires a minimum amount of scheduled maintenance and
features a modular design for easy maintenance. If a malfunction is suspected, check for an external
cause before performing the diagnostics discussed in this section.
Explosions may result in death or serious injury.

Do not remove the instrument 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.

Both transmitter covers must be fully engaged to meet explosion-proof requirements.
Electrical shock could cause death or serious injury.

If the sensor is installed in a high-voltage environment and a fault or installation error occurs, high
voltage may be present on transmitter leads and terminals.

Use extreme caution when making contact with the leads and terminals.
Failure to follow these installation guidelines could result in death or serious injury.

Make sure only qualified personnel perform the installation.
Process leaks could result in death or serious injury.

Install and tighten thermowells or sensors before applying pressure, or process leakage may result.

Do not remove the thermowell while in operation. Removing while in operation may cause process
fluid leaks.