Lowrance electronic X52 Benutzerhandbuch

46

Backlight Level

The unit defaults to the maximum backlight level. To adjust the
display's backlight level:

Press 

|

|

↓ to 

|

. The 

 slider

bar appears. Press 

↑ or ↓ to move the bar. At The lower end of the scale

backlighting is turned off; the upper end is maximum backlight level.

The Backlight Level control bar appears automatically whenever you

turn on the unit.

Calibrate Speed

The speed sensor can be calibrated to compensate for inaccuracies.
Before you change the setting, first calculate the percentage that the
speed is off. You will enter this percentage in a moment.

For example, if you figure the sensor is reading 10 percent faster than
actual speed, you will enter – 10 in the calibration window. If the
sensor is reading 5 percent slower than true speed, you will enter + 5 in
the window.

Perform your test in relatively calm water free of current, if possible.
(Unless, of course, you are taking the current speed into consideration
when making your calculation.) After you have a correction figure,
here's how to enter it:

1. Press 

|

|

↓ to 

|

.

2. Enter the number you calculated earlier: press 

↑ or ↓ to change the

displayed number. Continue until the percentage is correct, then press 

.

Chart Speed

The rate that echoes scroll across the screen is called the chart speed.
The default is maximum; we recommend that you leave the speed set
there for virtually all fishing conditions.