Emerson Rosemount 5408 Reference Manual page 10

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November 2017
Failure to follow safe installation and service guidelines could result in death or serious injury.
Make sure the transmitter is installed by qualified personnel and in accordance with applicable code

of practice.
Use the equipment only as specified in this manual. Failure to do so may impair the protection

provided by the equipment.
For installations in hazardous locations, the transmitter must be installed according to the

Rosemount 5408 and 5408:SIS
(D7000002-885).
Explosions could result in death or serious injury.
Verify that the operating environment of the transmitter is consistent with the appropriate

hazardous locations certifications.
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.
Do not remove the transmitter covers in explosive atmospheres when the circuit is alive.

Both transmitter covers must be fully engaged to meet explosion-proof requirements.

Electrical shock can result in death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be present on leads can cause

electrical shock.
Make sure the main power to the transmitter is off and the lines to any other external power source

are disconnected or not powered while wiring the transmitter.
Process leaks could result in death or serious injury.
Make sure that the transmitter is handled carefully. If the process seal is damaged, gas might escape

from the tank.
Any substitution of non-authorized parts or repair, other than exchanging the complete
transmitter head or antenna assembly, may jeopardize safety and is prohibited.
Unauthorized changes to the product are strictly prohibited as they may unintentionally and

unpredictably alter performance and jeopardize safety. Unauthorized changes that interfere with the
integrity of the welds or flanges, such as making additional perforations, compromise product
integrity and safety. Equipment ratings and certifications are no longer valid on any products that
have been damaged or modified without the prior written permission of Emerson. Any continued use
of product that has been damaged or modified without the written authorization is at the customer's
sole risk and expense.
Hot surfaces
The flange and process seal may be hot at high process temperatures.
Allow to cool before servicing.
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Product Certifications document and System Control Drawing
Reference Manual
00809-0100-4408, Rev BA
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