Waygate Technologies Krautkramer USM 100, Руководство по эксплуатации, Страница: 126 / 330

5 Operation A-Scan
126 Rev. 9 (09/2023) Krautkrämer USM 100
Display Delay
You can use this function to choose whether to display
the adjusted display range (for example 250 mm) start-
ing from the surface of the test object or in a section of
the test object starting at a later point. This allows you to
shift the complete screen display and consequently also
the display zero. For example, if the display should start
from the surface of the test object, you have to adjust
the value
0 for the display delay. When the third gate is
enabled and set as IF gate, the value is automatically
fixed at
0 .
Probe Delay
Every probe is equipped with a delay line between the
transducer and the coupling face. The sound pulse must
first pass through this delay line before it can enter the
test object. You can compensate for this influence of the
delay line in the probe with the value in this function
Probe Delay .
Note
If the value for the probe delay is not known,
please read chapter
Calibration to deter-
mine this value (see page 165). The value is
set automatically when you have selected a
probe by its number or name (see page 132).
Velocity
You can use the function Velocity to set the sound ve-
locity in the test object.
ATTENTION
Please always make sure that the setting of
the function
Velocity is correct. The instru-
ment calculates all range and distance indi-
cations on the basis of the value adjusted
here.