GE Krautkramer USM 35X, Operator'S Manual

Page: 112 / 226

5-64 Issue 01, 04/2005 Krautkramer USM 35X
Operation
Distance-amplitude curve (only USM 35X DAC and USM 35X S)
Deleting reference points or the complete DAC
You can delete the reference point which was recorded
last in each case, or the complete DAC.
– Select the function DACECHO.
– Turn the right-hand rotary knob downward (counter-
clockwise). The message “ Do you want to delete
the DAC echo? ” appears in the measurement line.
– Press the key in order to delete the last echo, or
press another key in order to cancel the process of
deleting.
In this way, you can record one or several new refer-
ence points.
– In order to delete the complete DAC, turn the right-
hand rotary knob upward (clockwise). The message
“
Do you want to delete all DAC echoes? ” appears
in the measurement line.
– Press the key in order to delete all echoes, or
press another key in order to cancel the process of
deleting.
T-CORR (Sensitivity correction)
This function enables you to compensate for the trans-
fer losses in the material under test. This correction is
necessary if test object and reference block have differ-
ent surface qualities.
You have to find out the adjustment value for the com-
pensation of transfer losses by experiments. The gain
is varied accordingly in this connection, the curve line
remains the same.
– Select the function T-CORR .
– Use the right-hand rotary knob to select the required
setting.
5-64 Issue 01, 04/2005 Krautkramer USM 35X
Operation
Distance-amplitude curve (only USM 35X DAC and USM 35X S)
Deleting reference points or the complete DAC
You can delete the reference point which was recorded
last in each case, or the complete DAC.
– Select the function DACECHO.
– Turn the right-hand rotary knob downward (counter-
clockwise). The message “ Do you want to delete
the DAC echo? ” appears in the measurement line.
– Press the key in order to delete the last echo, or
press another key in order to cancel the process of
deleting.
In this way, you can record one or several new refer-
ence points.
– In order to delete the complete DAC, turn the right-
hand rotary knob upward (clockwise). The message
“
Do you want to delete all DAC echoes? ” appears
in the measurement line.
– Press the key in order to delete all echoes, or
press another key in order to cancel the process of
deleting.
T-CORR (Sensitivity correction)
This function enables you to compensate for the trans-
fer losses in the material under test. This correction is
necessary if test object and reference block have differ-
ent surface qualities.
You have to find out the adjustment value for the com-
pensation of transfer losses by experiments. The gain
is varied accordingly in this connection, the curve line
remains the same.
– Select the function T-CORR .
– Use the right-hand rotary knob to select the required
setting.