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Reference Manual
00809-0200-4101, Rev AA
July 2008
Rosemount 2051
www.rosemount.com
Section 2 Installation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . page 2-2
Environmental Considerations . . . . . . . . . . . . . . . . . . . . . page 2-2
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-3
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . page 2-3
Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-21
Hazardous Locations Certifications . . . . . . . . . . . . . . . . . page 2-27
Rosemount 305, 306 and 304 Manifolds . . . . . . . . . . . . . . page 2-27
Liquid Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . page 2-31
OVERVIEW The information in this section covers installation considerations for the
Rosemount 2051 with F
OUNDATION fieldbus. A Quick Installation Guide for
F
OUNDATION fieldbus (document number 00825-0200-4101) is shipped with
every transmitter to describe basic pipe-fitting and wiring procedures for initial
installation. Dimensional drawings for each 2051 variation and mounting
configuration are also included.
SAFETY MESSAGES Procedures and instructions in this section may require special precautions to
ensure the safety of the personnel performing the operation. Information that
raises potential safety issues is indicated with a warning symbol ( ). Refer
to the following safety messages before performing an operation preceded by
this symbol.
Warnings
Explosions could result in death or serious injury:
Installation of this transmitter in an explosive environment must be in accordance with the
appropriate local, national, and international standards, codes, and practices. Please review the
approvals section of the 2051 reference manual for any restrictions associated with a safe
installation.
• Before connecting a Field Communicator in an explosive atmosphere, ensure the
instruments in the loop are installed in accordance with intrinsically safe or non-incendive
field wiring practices.
• In an Explosion-Proof/Flameproof installation, do not remove the transmitter covers when
power is applied to the unit.
Process leaks may cause harm or result in death.
• Install and tighten process connectors before applying pressure.
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.