Section
2-1
2 Level Controller Overview
and Installation
This section contains overview information about the Model 3095
Multivariable Level Controller system, an installation flowchart
showing the sequence of Level Controller installation and wiring,
installation considerations, and the field installation procedure.
SAFETY MESSAGES
Instructions and procedures in this section may require special
precautions to ensure the safety of the personnel performing the
operations. Information that raises potential safety issues is indicated
by a warning symbol ( ). Please refer to the following safety messages
before performing an operation preceded by this symbol.
Explosions could result in death or serious injury:
• Do not remove the instrument cover in explosive atmospheres when the
circuit is alive.
• Before connecting a HART-based 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.
• Both controller covers must be fully engaged to meet explosion-proof requirements.
• The unused conduit opening on the controller housing must be plugged and
sealed to meet explosion-proof requirements.
Failure to follow safe installation and servicing guidelines could result in death or
serious injury:
• Make sure only qualified personnel perform these procedures.
• Use the equipment only as specified in this manual. Failure to do so may impair
the protection provided by the equipment.
• Unauthorized parts can affect product performance and may impair the
protection provided by the equipment.
Process leaks could result in death or serious injury:
• Install only the flange adapter O-ring designed to seal with the corresponding
flange adapter.
• All four flange bolts must be installed and tight before applying pressure or
process leaks will result.
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