Reference Manual
00809-0100-4731, Rev FA
April 2003
APEX
™
and APEX Sentry
™
Radar Gauge
1-2
SAFETY MESSAGES Procedures and instructions in this manual 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 ( ). Refer to
the safety messages listed at the beginning of each section before performing
an operation preceded by this symbol.
Explosions could result in death or serious injury:
Verify that the operating environment of the gauge is consistent with the appropriate
hazardous locations certifications.
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.
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.
Do not perform any service other than those contained in this manual unless you are
qualified.
As a matter of routine, shut off the APEX Radar Gauge and all other equipment in the tank
before you enter the tank.