Vessel Characteristics; Heating Coils, Agitators; Tank Shape - Emerson Rosemount 3300 Series Reference Manual

Reference Manual
00809-0100-4811, Rev CA
February 2006
VESSEL
CHARACTERISTICS

Heating Coils, Agitators

Tank Shape

Emulsion Layers
Sometimes there is an emulsion layer (mix of the products) between the two
products which, depending on its characteristics, will affect interface
measurements.
Please consult factory for guidelines on how to handle emulsion layers.
The Rosemount 3300 Series Radar Transmitter is relatively insensitive to
objects in the tank since the radar signal is transmitted along a probe.
Avoid physical contact between probes and agitators as well as applications
with strong fluid movement unless the probe is anchored. If the probe can
move within 1 ft (30 cm) away from any object, such as an agitator, during
operation then probe tie-down is recommended.
In order to stabilize the probe for side forces, it is possible to hang a weight at
the probe end (flexible probes only) or fix/guide the probe to the tank bottom.
The guided wave radar transmitter is insensitive to the tank shape. Since the
radar signal travels along a probe, the shape of the tank bottom has virtually
no effect on the measurement performance. The transmitter handles flat or
dish-bottom tanks equally well.
Rosemount 3300 Series
2-11