GE Krautkramer USM 35X, Operator'S Manual

Page: 124 / 226

5-76 Issue 01, 04/2005 Krautkramer USM 35X
Operation
– If required, confirm by pressing again.
After the successful recording of the reference echo, a
highlighted
R will be displayed in the measurement line.
– Set the function DGSMOD> to on , to switch on DGS
curve.
Taking the general DGS diagram as a basis, the instru-
ment calculates the required test sensitivity for display-
ing the 3 mm curve with its maximum at 80 % screen
height, and sets this value. The current gain is set to 0
during this. In the case of subsequent gain variations,
the curve is automatically adapted.
Evaluation according to the DGS method (only USM 35X S)
Evaluation of reflectors
Every echo situated within the gate can be immediately
evaluated:
The measurement line has been configured in such a
way that the sound path
S , the echo height in dB
referred to the DGS curve , the equivalent reflector
size ( ERS ) of the flaw echo and the calibration range
are displayed.
The measured value to be zoomed in the A-scan is
chosen by means of the function
S-DISP in the func-
tion group MEAS. ERS was chosen in the above exam-
ple. (Also refer to Configuring the measurement line,
p. 5-49.)
5-76 Issue 01, 04/2005 Krautkramer USM 35X
Operation
– If required, confirm by pressing again.
After the successful recording of the reference echo, a
highlighted
R will be displayed in the measurement line.
– Set the function DGSMOD> to on , to switch on DGS
curve.
Taking the general DGS diagram as a basis, the instru-
ment calculates the required test sensitivity for display-
ing the 3 mm curve with its maximum at 80 % screen
height, and sets this value. The current gain is set to 0
during this. In the case of subsequent gain variations,
the curve is automatically adapted.
Evaluation according to the DGS method (only USM 35X S)
Evaluation of reflectors
Every echo situated within the gate can be immediately
evaluated:
The measurement line has been configured in such a
way that the sound path
S , the echo height in dB
referred to the DGS curve , the equivalent reflector
size ( ERS ) of the flaw echo and the calibration range
are displayed.
The measured value to be zoomed in the A-scan is
chosen by means of the function
S-DISP in the func-
tion group MEAS. ERS was chosen in the above exam-
ple. (Also refer to Configuring the measurement line,
p. 5-49.)