Differences Between Plots In Rrm And Rct - Emerson Rosemount 3300 Series Reference Manual

Reference Manual
00809-0600-4811, Rev AA
February 2009
Differences Between
Plots in RRM and RCT
Figure 4-3. Surface Threshold
Curve.
Rosemount Radar Level Transmitters
There are a few differences between functionality of the Waveform Plot in
RCT and the Echo Curve in RRM. In RRM, the x-axis plots the physical
distance to the product or disturbance. The x-axis in RCT represents the
electrical distance.
Additionally, there are a few differences in the threshold settings. RRM has
automated recognition of a fully submersed probe, so there is no need for a
T4 threshold. In RCT, the T2, surface threshold, setting is linear. But in RRM,
the surface threshold setting is a curve that can be manipulated by moving
points along the threshold curve. The T3, interface threshold, is linear for both
RCT and RRM. Figure 4-3 demonstrates a multi-point threshold curve.
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