Honeywell SLG 700 User Manual page 126

Processed Full Echo Curve: Similar to the Full Echo Curve type, but with subtraction of
background reflections near the reference plane applied. This type of echo curve is useful for
process and/or algorithm troubleshooting.
Figure 34: Processed (Full) Echo Curve
Background Subtraction Array: Selecting this echo curve type allows the data array that is used
to remove unwanted reflections in the region near the reference plane to be uploaded and viewed.
This type of echo curve is useful for troubleshooting problems in the region near the reference
plane and checking whether any obstacles (if present) are found at expected locations.
Figure 35: Background Subtraction Array
SLG 700 Series HART Option User's Manual
Page 118 Revision 5