Lowrance lms-522c igps 操作ガイド

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3. To enable the Empty Alarm, highlight the 

 Enabled box 

and press 

to turn on (check) the alarm. Press 

→ to the Percent box 

and press 

. Use the 

↑ ↓ keys to select the first number, then press 

→ to move to the next number. When the desired percentage has been 

entered, press 

. 

You do not have to set both the Full and Empty alarms. Choose 

both Full and Empty alarms or activate them individually. 

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. 
If, for example, 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.