Waygate Technologies Krautkramer USM 100, Руководство по эксплуатации, Страница: 185 / 330

DGS 5 Operation
Krautkrämer USM 100 Rev. 9 (09/2023) 185
Taking the general DGS diagram as a basis, the
USM 100 calculates the required test sensitivity for dis-
playing the selected curve with its maximum at 80 %
screen height, and makes this setting.
The curve is automatically adjusted in the case of sub-
sequent gain variations.
The gain can be varied at any time. The difference in re-
lation to the calibration value during the DGS calibration
is directly displayed next to the gain value. If you set the
function
DGS Mode to Off and then to On again, the
original gain setting is displayed with the difference val-
ue
+0.0 .
You can also select the curve for a equivalent reflector
size after taking the reference echo.
Locks, error messages
As long as a valid reference echo is stored, no functions
can be changed which could cause an incorrect DGS
evaluation, with the exception of
Probe Delay (within
tight limits). If an attempt is made to change such a func-
tion, the following error message appears:
Function locked: DGS reference has been recorded!
The DGS evaluation must likewise be turned off and the
reference echo deleted when selecting a new probe,
e.g. for a new test application.