AUTOMATIC
When the Accura 240 is first turned on, the Automatic feature is enabled. This is indicated by the word “AUTO” at the top of the screen. The Automatic fea- ture adjusts the sensitivity and range so the bottom signal is displayed in the lower half of the screen at all times.
To turn Automatic off, first press the MENU key, then press the up or down arrow keys until the "AUTO" menu appears. Press the left arrow key to
switch to the manual mode. The letters “Man” appear at the top of the screen, indicating the unit is in the manual mode. To turn Automatic on, repeat the above steps to get the auto menu, then press the right arrow key.
SENSITIVITY
The sensitivity controls the ability of the unit to pick up echoes. A low sensitivity level excludes much of the bottom information, fish signals, and other target information. High sensitiv-
ity levels enables you to see this detail, but it can also clutter the screen with many undesired signals. Typically, the best sensitivity level shows a good solid bottom signal with Grayline and some surface clutter.
When the Accura 240 is in the Auto- matic mode, the sensitivity is auto- matically adjusted to keep a solid bot- tom signal displayed, plus a little more. This gives it the capability to show fish and other detail.
However, situations occur where it becomes necessary to increase or decrease the sensitivity. This typically happens when you wish to see more detail, so an increase in sensitivity is indicated. The procedure to adjust it is the same whether the unit is in the automatic or manual mode.
To adjust the sensitivity, press the MENU key, then press the up or down arrow keys until the "SENS" menu appears as shown above.
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