Olympus Sonic 1200S/HR, Руководство пользователя

Страница: 82 / 154

74 Chapter 5
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.
5.2 Dual Transducer Thickness Testing
Dual (pitch/catch) transducers produce better results for measuring thin (0.030 inch) materials
or rough and corroded metals in the 0.050 inch to 5.00 inch range. They can also be used on
smooth materials to more than 10 inches.
The following accessories are required for this setup procedure:
STEP BLOCK — Sonic
®
#1920105.00 steel step block or equal (0.100 to 0.500 inch).
TRANSDUCER — Harisonic
®
J4MD (¼ in. 5 MHz).
COUPLANT — Use a couplant that “fills in” the surface. On smooth surfaces, use
thinner couplants (water, light oil, or mineral oil). On rough surfaces, the Sonic
®
X30S
couplant (P/N #3317450) is more appropriate.
5.2.1 Instrument Calibration - 0.100 to 0.500 Inches Steel
1. Connect the two transducer leads into both BNC connectors.
2. Turn instrument power on.
3. Set the Sonic
®
1200S/HR for Dual mode by pressing the PULSER menu key and then
selecting the MODE menu soft key.
4. Adjust the operating controls as follows:
To select and change the following parameters, press the menu soft key below the selected