About This Guide - Emerson Rosemount 2120 Quick Start Manual

June 2020
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About this guide

This Quick Start Guide provides basic guidelines for the Rosemount 2120.
Refer to the Rosemount 2120
manual and this guide are also available electronically at
Rosemount.
WARNING
Failure to follow safe installation and servicing guidelines could result in
death or serious injury.
• Ensure the level switch is installed by qualified personnel and in
accordance with applicable code of practice.
• Use the level switch only as specified in this manual. Failure to do so may
impair the protection provided by the level switch.
• The weight of a level switch 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 switch.
Explosions could result in death or serious injury.
• Verify that the operating atmosphere of the level switch is consistent
with the appropriate hazardous locations certifications.
• Before connecting a handheld communicator in an explosive
atmosphere, ensure that the instruments in the loop are installed in
accordance with intrinsically safe or non-incendive field wiring practices.
• In explosion-proof/flameproof and non-Incendive/type n installations, do
not remove the housing cover when power is applied to the level switch.
• The housing cover must be fully engaged to meet flameproof/explosion-
proof requirements.
Electrical shock could cause death or serious injury.
• Avoid contact with the leads and terminals. High voltage that may be
present on leads can cause electrical shock.
• Ensure the power to the level switch is off, and the lines to any other
external power source are disconnected or not powered while wiring the
level switch.
• Ensure the wiring is suitable for the electrical current and the insulation is
suitable for the voltage, temperature, and environment.
Quick Start Guide
Reference Manual
Quick Start Guide
for more instructions. The
Emerson.com/
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