Emerson Rosemount 2140, Reference Manual, Page: 57 / 144

47
Reference Manual
00809-0100-4140, Rev AA
Hardware Installation
January 2017
Hardware Installation
Section 3 Hardware Installation
3.1 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 by a warning symbol ( ). The external hot surface symbol (
) is used
when a surface is hot and care must be taken to avoid possible burns. If there is a risk of an
electrical shock, the (
) symbol is used. Refer to the following safety messages before
performing an operation preceded by this symbol.
Failure to follow these installation guidelines could result in death or serious
injury.

The Rosemount 2140 Level Detector and Rosemount 2140:SIS Level Detector
(“level detectors”) must be installed, connected, commissioned, operated, and
maintained by suitably qualified personnel only, observing any national and local
requirements that may apply.

Ensure the wiring is suitable for the electrical current and the insulation is suitable
for the voltage, temperature, and environment.

Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.

Any substitution of non-recognized parts may jeopardize safety and is under no
circumstances allowed.

The weight of a level detector with a heavy flange and extended fork length may
exceed 37 lb. (18 kg). A risk assessment is required before carrying, lifting, and
installing the level detector.
Failure to comply with the following requirements will result in the invalidation of
the product safety certification.

Check for risk of process medium build-up on the level switch forks.
Avoid situations where drying and coating products may create an excessive
build-up (see
Figure 3-3 on page 51 ) or implement preventative maintenance
programs to ensure the build-up is not enough to impair performance.

Ensure there is no risk of 'bridging' the level switch forks. Examples of products
that create 'bridging' of the forks are dense paper slurries and bitumen.
Explosions could result in death or serious injury.

Installation of this level detector in a hazardous area environment must be in
accordance with the appropriate local, national, and international standards,
codes, and practices.

Please review Appendix B: Product Certifications for restrictions associated with
hazardous area 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 level detector
covers when power is applied to the unit.