Emerson Guided Wave Radar Level and Interface Transmitters 3300 - Manual (Page 86)

Reference Manual
00809-0100-4811, Rev CA
February 2006
Rosemount 3300 Series
6-6
Figure 6-4 illustrates a situation where amplitude threshold T3 is too high. The
signal amplitude peak at the interface between the upper and lower products
is not detected in this case. By adjusting amplitude threshold T3, the peak at
the interface between the upper and lower products is detected as illustrated
in Figure 6-5:
Figure 6-5. After changing the
amplitude threshold the
transmitter detects the interface
The amplitude threshold is
adjusted below the peak to allow
the interface peak to be detected
WAVE
FORMPLO
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RFACE LOW EP
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