Waygate Technologies Krautkramer USM 10, Operating Manual

Page: 145 / 242

Calibration 5 Operation
Krautkrämer USM 100 Rev. - (09/2021) 145
5.16 Calibration
Calibrating the probe delay and velocity
Before working with the USM 100, it must be calibrated.
You have to adjust the material velocity and the display
range, as well as allow for the probe delay, depending
on the material and the dimensions of the test object.
To ensure a safe and proper operation of the instru-
ment, it is necessary that the operator be adequately
trained in the field of ultrasonic testing technology.
The USM 100 provides two calibration modes:
● Multi BW (see page 146)
● Multi Step (see page 147)
Note
The angle calculation of angle probes is de-
scribed from page 149.
Choice of the measuring point
The sound path measurement by means of the echo
evaluation depends on the choice of measuring point
(see
Gate A TOF Mode , page 128).
ATTENTION
In any case, the setting of the measuring
point in
Gate A TOF Mode for the calibration
and for the subsequent test use must always
be identical. Otherwise, measuring errors
may occur.