Emerson Rosemount 3308 Series Reference Manual page 129

Reference Manual
00809-0100-4308
Figure 6-10: The Different Peak Detection Methods
A. Threshold Intersection: Surface detected at first intersection with Surface Threshold
B. Peak Center
C. Surface Threshold
Prerequisites
Note that this configuration should only be performed by advanced users as it could cause
issues if configured incorrectly.
Procedure
1. Select Service Tools → Echo Tuning → Advanced.
2. Under Peak Detection Method, select Threshold Intersection, and then click Send.
3. Run Verify Level to compensate for any offset error (see
Reference Manual
the Threshold Intersection method.
Figure 6-11: Thin Oil Layer on Top of Water, Peak Detection Method Set to
Threshold Intersection
A. Surface detected at first intersection with Surface Threshold, even when there is
an oil peak
B. Actual product surface is ignored
C. Surface Threshold
D. Offset error
Service and troubleshooting
February 2020
Figure 6-11) introduced by
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