Scan Mode - DAKOTA ULTRASONICS DX-1 Manual

While the DX-1 excels at making single point measurements, it is
sometimes desirable to examine a larger region, searching for the thinnest
point. The DX-1 includes a feature, called Scan Mode, which allows it to do
just that.
In normal operation, the DX-1 performs and displays four
measurements every second, which is quite adequate for single
measurements. In Scan Mode, however, the gauge performs sixteen
measurements every second, but does not display them. While the
transducer is in contact with the material being measured, the DX-1 is
keeping track of the lowest measurement it finds. The transducer may be
"scrubbed" across a surface, and any brief interruptions in the signal will be
ignored. When the transducer loses contact with the surface for more than
a second, the DX-1 will display the smallest measurement it found.
When the DX-1 is not in calibration mode, press the UP arrow key to
turn Scan Mode on and off. A brief message will appear in the display
confirming the operation. While scanning, the display will show a moving
series of dashes instead of a thickness value. When the transducer is
removed from the material being scanned, the DX-1 will (after a brief
pause) display the smallest measurement it found.

Scan Mode

DX-1 Ultrasonic Micrometer
17