DMTA-10084-01EN, Rev. 2, November 2018
Chapter 11
168
Figure 11-14 DAC curves with adjusted gain
11.3.5.3 Transfer Correction
Transfer correction is an adjustment in the reference gain setting during calibration of
the instrument, and it is typically added when the surface conditions of a calibration
block and test piece are different. The coupling conditions on the test surface can often
cause signal loss after calibrating a DAC curve, which results in inaccurate
comparisons of the test reflectors with the calibrated DAC curve. The EPOCH 6LT can
be easily adjusted for this potential difference by adding transfer correction to the
calibrated base gain after completing the DAC curve setup.
To add transfer correction to a completed DAC curve
1. Highlight the gain adjustment box.
2. Turn the adjustment knob to bring the scanning gain to the desired level for
transfer correction.
3. Press the Enter key to open the gain adjustment shortcut menu (see “Gain
adjustment shortcut menu” on page 31 for instructions on opening and using the
shortcut).
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