Olympus 45MG, User Manual

Page: 80 / 246

DMTA-10022-01EN, Rev. C, January 2015
Chapter 6 70
6.2 Echo Detection Modes with Dual Element Transducers
With dual element transducers, the 45MG offers three echo detection modes that
allow you to measure thicknesses in various material conditions. A description of
each of the three echo detection modes (
STANDARD , optional AUTO E-TO-E , and
MANUAL E-TO-E ) follows:
STANDARD
The standard echo detection mode measures the thickness based on the time of
flight between the main bang and the first back-wall echo. Use this mode for
uncoated materials.
The
DE-STD indicator appears to the left of the thickness reading, and a
triangular echo detection marker appears at the back-wall echo, below the
waveform display (see Figure 6-2 on page 70).
Figure 6-2 Measuring with the standard echo detection mode
AUTO E-TO-E (Optional)
The automatic Echo-to-Echo detection mode measures the thickness using the
time of flight between two consecutive back-wall echoes. Use this mode for
painted or coated materials, because the time interval between consecutive back-
wall echoes excludes the time of flight through a paint, resin, or coating layer.
The
DE-AEtoE indicator appears to the left of the thickness reading.
When the Waveform software option is enabled, the triangular marker is replaced
Dual element (DE) standard (STD) echo detection mode Echo detection marker