Emerson Rosemount 5408 Reference Manual page 119

Reference Manual
00809-0100-4408
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. Select Service Tools → Echo Curve.
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 7-1: Echo Peak Types
Type
Surface
Unknown
Suppressed
Suppressed (double bounce)
Secondary surface
Tank bottom echo
Rosemount 5408 and 5408:SIS Level Transmitters
Rosemount Radar Master Plus reads one echo curve and then stops.
Service and troubleshooting
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
Echo tracked as the current secondary surface (if
Double Surface Handling function is enabled)
Echo considered as an echo from the tank
bottom
March 2023
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