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3-5
3.5 Selecting Display Sector
Sector means the width of the transducer training, from 6° to 180°.
24˚
Sector (Shown: 24˚)
Figure 3-6 Sector
The [SECTOR] control selects the training area among the sixteen positions shown in the table
below. Clockwise rotation of the control increases the sector width; counterclockwise rotation
decreases it.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Sector
width (°)
6 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
One-touch selection of 180°
°°
°
sector
1. Press the [FULL/HALF] key. A half-circle display of 180° is presented.
2. Press the [FULL/HALF] key again, and a 120°-sector display is presented.
Note: Operating the [SECTOR] control between steps 1 and 2 in the procedure above displays
the 180°
sector at the next pressing of the [FULL/HALF] key.
24˚
FULL/HALF
key
Sector set with
SECTOR control
Half circle
180˚
0˚
180˚
0˚
120˚
FULL/HALF
key
180˚
Figure 3-7 How the FULL/HALF key works