Procedures and instructions 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.

Failure to follow safe installation and servicing guidelines could result in death or
serious injury:

Make sure only qualified personnel perform the installation.

Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.

Do not perform any service other than those contained in this manual unless you are
qualified.

Substitution of components may impair Intrinsic Safety.

To prevent ignition of flammable or combustible atmospheres, disconnect power before
servicing.

Explosions could result in death or serious injury:

Verify that the operating environment of the display is consistent with the appropriate
hazardous locations certifications.

Before connecting a hand held 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.

Do not remove the gauge cover in explosive atmospheres when the circuit is alive.

High voltage that may be present on leads could cause electrical shock:

Avoid contact with leads and terminals.

Make sure the main power to the Tank Hub is off and the lines to any other external
power source are disconnected or not powered while wiring the device.