Olympus Sonic 1200S/HR, Руководство пользователя

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Applications 93
8. Place the transducer on the thinnest step (0.100), press the THK CAL softkey and rotate
the SmartKnob
™
until the THK CAL value for CAL PT2 reads 0.100 inch. Press the
ENTER key to log this value.
9. Calibration is now done. Check the 0.200, 0.300, and 0.400 inch steps. If the thickness
readings are correct, the thickness gauge is calibrated. If the thickness gauge is not
calibrated, repeat calibration steps 5 through 8.
5.3.5 Thickness Using Multiple Echoes From the 1st Back Wall
to 2nd Back Wall Reflection, Echo-to-Echo
Adjust the operating controls as follows:
To measure between echoes, both Gate 1 and Gate 2 are used for thickness measurements.
Gate 1 position (start) must be to the left of the thinnest step (echo) for thickness
measurements. The width must be wide enough to cover the area where the 1st back wall echo
will appear (see
Figure 5-26 ) .
Gate 2 position (start) must be to the right of the 1st back wall echo and to the left of the
thinnest 2nd back wall echo for accurate thickness measurements. The width of Gate 2 must be
wide enough to cover the area where the 2nd back wall echo will appear (see
Figure 5-27 )