Checkline DFX-7 - Manual (Page 117)

DFX-7
Ultrasonic Flaw Detector
113
3) Alternatively, press the ENTER key to display the Digits Edit Box.
4) Press the UP and DOWN arrow keys to scroll the highlighted value.
5) Press the LEFT and RIGHT arrow keys to scroll the digit locations.
6) Repeat steps 4 & 5 until the ALARM LOW value is correctly displayed.
7) If only one limit will be used, press the MEAS key to return to the
measurement screen and begin taking readings. Otherwise, continue on to
set the ALARM HIGH limit using the same procedures.
10.4 Differential Mode
The Differential Mode of the DFX-7 provides the user with the ability to set a
nominal value, according to what the expected thickness should be, and measure the
+/- difference from the nominal value entered. This feature is typically used in QA
incoming inspections on pipes, plate stock, coils, etc. The steps below outline how to
enable and enter the nominal value to use this feature:
Toggle Differential (on/off)