Waygate Technologies Krautkramer USM Go, Operating Manual

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5 Operation Defining the probe angle
5-50 Rev. 10 (06/2021) USM Go
5.13 Defining the probe angle
You can use the function AUTOANG to define the cur-
rent index angle of a probe on a reference block. The
current probe index angle is influenced, e.g. by different
materials or by the wear of the probe contact face.
ATTENTION
You have to carry out calibration before us-
ing the function
AUTOANG (see Chapter 5.8
Calibrating the USM Go , page 5-29).
– After calibration, switch to the function group AU-
TOANG .
– Select the function BLOCK and press a function key
to choose the range of the calibration standard that
includes the nominal value of the probe angle (for ex-
ample K2 30-65 for the nominal value 45°).
– Shift the gate to the calibration echo.
– Switch to the function RECORD and press a function
key to record the calibration echo.
– Peak the echo. The USM Go will automatically record
the time-of-flight of the echo with the maximum ampli-
tude occurring during this.
– Press a function key to set the function RECORD
back to OFF .
The calculated angle is briefly displayed at the bottom
edge of the display screen.
The values of the last measurement are automatically
entered in the function group
TRIG , i.e. in the function
PROBE ANGLE there.