Garmin GPSMAP 400 - Manual (Page 74)

 GPSMAP 400/500 Series Owner’s Manual
Appendix
Alarms and Messages
The unit uses an on-screen message system to alert you to unit
operating characteristics. When a message appears, press MENU to
acknowledge the message.
accuracy alarm—the GPS accuracy has fallen outside of the user-
set value.
aiS: dangerous Target—shows the MMSI (Maritime Mobile
Service Identity) of the dangerous target.
alarm Clock—the alarm clock has sounded.
anchor drag alarm—you have drifted out of the specified distance
range.
antenna input is Shorted—a part of the antenna wiring is crimped,
broken, or contacting the chassis.
arriving at [waypoint Name]—you arrived at the destination
waypoint. You can Stop Navigation when this message appears.
battery alarm—battery voltage has fallen below the value entered
in the Battery Alarm setup.
battery Voltage is Too High—too much input voltage—the unit
shuts off in 10 seconds. Decrease the input voltage to the maximum
voltage allowed (or less) for your chartplotter.
boat is Not Moving fast Enough to Calibrate—the boat is not
moving fast enough for the speed wheel to provide a valid speed.
Can’t Read User Card—error reading card; remove and reinsert.
Contact your dealer or Garmin Product Support if the problem
persists.
Can’t Read Voltages That High, Limited To Top Of Range—the
voltage value in the Battery Alarm setup is higher than the unit can
read.
Can’t Read Voltages That Low, Limited To bottom Of Range—
voltage value in the Battery Alarm setup is lower than the voltage
where the unit automatically turns off.
Can’t Unlock Maps—data on the data card is not unlocked for the
unit. Contact your dealer or Garmin Product Support.
Can’t write User Card, Card May be full—error reading card;
remove and reinsert. Contact your dealer or Garmin Product Support
if the problem persists.
Can’t write User Card, Card is Read-Only—the SD card in your
unit contains data copy protection.
Card Needed—Your unit needs to have an SD card inserted into the
SD card slot in order to perform the function you requested.