Figure 9-1 Example Of A Gated Signal For Zero Calibration - Olympus EPOCH 650 User Manual

6. Press dB, and then adjust the gain value so that the echo amplitude is at
approximately 80 %.
The AUTO XX% feature automatically adjusts the gain to set the gated echo
amplitude to XX% of full screen height (the default XX value is 80 %). To activate this
feature, press 2 ND F, (AUTO XX%).
A thickness measurement reading appears in large text above the A-scan (see
Figure 9-1 on page 147).

Figure 9-1 Example of a gated signal for zero calibration

7. Once a steady reading is achieved, choose Auto Cal > Cal-Zero.
The screen freezes and the Cal-Zero box appears (see Figure 9-2 on page 148).
DMTA-10055-01EN, Rev. A, February 2015
Thickness measurement
Calibration 147