Emerson Rosemount 5408 Reference Manual page 114

Service and troubleshooting
February 2020
Figure 7-1: Echo Curve
Measurement problems can be understood by studying the position and amplitude of the
different peaks. Additionally, the recorded echo curves give insight into unexpected and
intermittent measurement behaviors, for instance, at the time of the triggered alert.
Read the echo curve
To read the echo curve in Rosemount Radar Master Plus:
Procedure
1. Under Service Tools, select Echo Curve. Rosemount Radar Master Plus reads one
2. To continuously update the echo curve, select the Play icon.
Analyzing the echo curve
The following echo peaks may appear in the echo curve:
Table 7-8: Echo Peak Types
Type
Surface
Unknown
Suppressed
Suppressed (double bounce)
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echo curve and then stops.
Description
Echo tracked as the current surface echo
Echo not recognized by the device, which might
interfere with measurement
Echoes that are identified but suppressed by the
device
Echo managed as a double bounce echo by the
Double Bounce function
Reference Manual
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Reference Manual