GE Krautkramer USM 35X, Operator'S Manual

Page: 74 / 226

5-26 Issue 01, 04/2005 Krautkramer USM 35X
Operation
Recording a reference echo
Before using the measurement of dB difference, you
have to first record a reference echo.
A
Attention:
When recording a reference echo, an already stored
reference echo is overwritten after a corresponding
warning.
– Peak the reference echo according to the test
specification.
– Position the A gate over the reference echo using the
function aSTART .
– Select the function REFECHO .
– Turn the right-hand rotary knob upward in order to
store the echo in gate A as a reference echo.
– If necessary, confirm the warning message in order
to overwrite a stored reference echo.
The reference echo is now recorded. An inverted R is
shown in the measurement line.
Deleting a reference echo
You can delete stored reference echoes.
– Select the function REFECHO .
– Turn the right-hand rotary knob downward in order to
delete the reference echo.
– If necessary, confirm the warning message in order
to delete the stored reference echo.
Measurement of dB difference (function group REF)
5-26 Issue 01, 04/2005 Krautkramer USM 35X
Operation
Recording a reference echo
Before using the measurement of dB difference, you
have to first record a reference echo.
A
Attention:
When recording a reference echo, an already stored
reference echo is overwritten after a corresponding
warning.
– Peak the reference echo according to the test
specification.
– Position the A gate over the reference echo using the
function aSTART .
– Select the function REFECHO .
– Turn the right-hand rotary knob upward in order to
store the echo in gate A as a reference echo.
– If necessary, confirm the warning message in order
to overwrite a stored reference echo.
The reference echo is now recorded. An inverted R is
shown in the measurement line.
Deleting a reference echo
You can delete stored reference echoes.
– Select the function REFECHO .
– Turn the right-hand rotary knob downward in order to
delete the reference echo.
– If necessary, confirm the warning message in order
to delete the stored reference echo.
Measurement of dB difference (function group REF)