Figure 5-7 Performing The Zero Calibration On A Five-Step Test Block - Olympus 45MG User Manual

DMTA-10022-01EN, Rev. C, January 2015
With Waveform option Without Waveform option

Figure 5-7 Performing the zero calibration on a five-step test block

3. Press [MEAS] to complete the calibration and return to the measurement screen.
IMPORTANT
If you turn off the instrument before pressing [MEAS], the velocity will not be
updated to the new value. Instead, the instrument retains the previous value.
NOTE
When the 45MG detects an error in the calibration procedure, it successively displays
the following messages in the help text bar before returning to the measurement
screen:
"Potential wrong echo detected!"
"Invalid calibration results!"
In such case, the velocity is not changed. The probable cause is that an incorrect
thickness value was entered, or the incorrect back-wall echo was detected.
Basic Operation 57