Emerson Process Management 5300 manual Vessel Characteristics, Heating Coils, Agitators Tank Shape

Rosemount 5300 Series

Reference Manual

00809-0100-4530, Rev BA July 2009

Figure 2-10. Maximum Upper Product thickness for the Flexible Twin Lead probe.

Maximum Upper Product Thickness, ft (m)

Flexible Twin Lead

Lower product

dielectric constant

Upper product dielectric constant

VESSEL CHARACTERISTICS

Heating Coils, Agitators

Tank Shape

NOTE!

Maximum distance to the interface = 164 ft.(50 m) - Maximum Upper Product Thickness.

Emulsion Layers

Sometimes an emulsion layer (mix of the products) forms between the two products and can affect interface measurements. For assistance with emulsion applications, consult your local Emerson Process Management representative.

Because the radar signal is transmitted along a probe, the Rosemount 5300 Radar transmitter is generally not affected by objects in the tank. Avoid physical contact with metallic objects when Twin Lead or Single Lead probes are used.

Avoid physical contact between probes and agitators, as well as applications with strong fluid movement, unless the probe is anchored. If the probe is able to move 1 ft. (30 cm) from any object, such as an agitator, during operation, the probe tie-down is recommended.

To stabilize the probe for side forces, a weight may be hung at the probe end (flexible probes only) or fix/guide the probe to the tank bottom.

The guided wave radar transmitter is insensitive to 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 can handle flat or dish-bottom tanks.

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