Basic Measurement Adjustments - Olympus EPOCH 650 User Manual

DMTA-10055-01EN, Rev. A, February 2015
11.9.4

Basic Measurement Adjustments

The accuracy of measurements can be enhanced by performing a two-point
calibration (see "Measurement calibration" on page 62), but the combination of
default settings from the Transducer Setup menu and the Do-Zero function allows
immediate measurements with a reasonable amount of accuracy.
Common adjustments in the basic Corrosion Module measurement mode include:
• Rectification
• Extended Blank Control
• Manual Gain Adjustment
11.9.4.1 Rectification
All rectification views are available in Corrosion Module, including Fullwave and RF
(most common selections).
11.9.4.2 Extended Blank Control
Based on material and (or) transducer, the Corrosion Module detection algorithm
may incorrectly trigger measurements from a signal before the first back wall. This
signal can be caused by surface conditions, transducer cross talk, or other factors (see
Figure 11-39 on page 281).
280 Chapter 11