Checkline DFX-7 - Manual (Page 79)

DFX-7
Ultrasonic Flaw Detector
75
Note: When the echo-echo thru-paint, or echo-echo-verify measurement modes are
selected, the manual gain feature is disabled and grayed out in the menu items. In
this mode, the DFX-7 switches to an automatic gain mode (AGC) that optimizes the
gain setting automatically in the hardware of the DFX-7.
The procedures to adjust the Gain are outlined below:
Adjusting the Gain using the Hot Menus
1) Press the MEAS key once to activate measure menu items. Press the
MEAS key multiple times to move right, and the ESC key multiple times to
move left until the GAIN cell is highlighted.
2) Press the UP, DOWN, LEFT, and RIGHT arrow keys to scroll the highlighted
value.