Dakota Ultrasonics DFX-7 plus MANUAL2 - Manual (Page 27)

DFX-7
Ultrasonic Flaw Detector
23
RF View Rectified (RECT) View
BSCAN View DIGITS View
In the upper left corner of each of the display photos above, is the repeatability
indicator. The repeatability indicator is represented by six vertical bars and
represents how repeatable the measurements are. In regular measurement mode,
the DFX-7 makes 8 measurements a second. In scan mode, the DFX-7 makes 200
measurements a second. If the coating mode option is activated, the DFX-7 makes 3
measurements a second in regular measurement mode and 65 measurements a
second in scan mode. When the DFX-7 is idle, only the left vertical bar will be
displayed. However, when the DFX-7 is making a measurement, four or five of the
bars should be displayed on the repeatability indicator. If fewer than four bars are
showing, the DFX-7 is having difficulty achieving a stable measurement and the
thickness value displayed is potentially unstable.