Eagle Electronics 320C 사용자 설명서

62

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.

   

Backlight Level Command, left, and Backlight Level control bar, right.

The control bar appears automatically whenever you turn on the unit.

Calibrate Speed

The speed sensor can be calibrated to compensate for inaccuracies. Be-
fore 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 sen-
sor 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 dis-

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

.