GE Ultrasonic USM Go, Руководство оператора

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Chapter 2. Instrument Setup
USM Go Operator’s Manual 57
2.6.2 Using AUTOCAL (cont.)
Note:
During the following steps, pressing both buttons on the Gain Toggle simultaneously activates the AUTO80 function.
5. Use the joystick ( ) to select the function titled
RECORD
. The value in the function box changes from
“OFF”
to
“S-REF1?”
.
While maintaining the signal in Gate A, move the joystick right or left ( ) to record the reference echo. The value in the function box
now reads “S-REF2?” .
6. Apply couplant and couple the probe to the thicker calibration standard. Then, use the joystick ( ) to select the function titled
A START . Press the function toggle or move the joystick ( ) to shift the starting point of Gate A until Gate A lies over the echo
corresponding to the thickness of the thicker standard (see Figure 14 on page 56 ). Coarse adjustments are made with the function
toggle, while fine adjustments are made with the joystick.
7. Use the joystick ( ) to select the function titled
RECORD
. While maintaining the signal in Gate A, move the joystick right or
left ( ) to record the reference echo. The value in the function box now reads “OFF” .