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October 2020
3
Electrical installation
3.1
Safety messages
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.
Explosions could result in death or serious injury.
•
In explosion-proof/flameproof, increased-safety, and dust ignition-proof
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.
3.2
Wiring considerations
Note
See the Rosemount 2521
specifications.
3.2.1
Handling
In cases of improper handling or handling malpractice, the electrical safety
of the device cannot be guaranteed.
Quick Start Guide
Product Data Sheet
Quick Start Guide
for the full electrical
15
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