Reference Manual
00809-0100-4731, Rev FA
April 2003
2-7
APEX
™
and APEX Sentry
™
Radar Gauge
Coating, Condensate, or Corrosion
The functionality of the gauge may be affected by coating, condensate, or
corrosion, depending on the type of process in the vessel. When conditions
produce heavy condensation or coating, or when the process is corrosive to
316 SST or alumina ceramic, Rosemount suggests using a process “window”
with the gauge to protect the antenna and waveguide.
VESSEL
CHARACTERISTICS
Mount the gauge where it will have a clear view of the tank surface, but not in
the top center of the vessel (Figure 2-10).
Figure 2-2. Vessel
Characteristics That May Affect
the Level Reading
NOTE
When using an APEX Sentry Radar Gauge, it is necessary for 100% of the
beam cone to contact the liquid surface.
Refer to Table 2-2 on page 2-8 for further information.
POOR PLACEMENT PREFERRED PLACEMENT
LEVEL-SEETHEPROCESS.TIF
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