Garmin GPSMAP 640 Owner's Manual

Also see for GPSMAP 620: Quick reference guide Declaration of conformity Owner's manual supplement Safety instruction Installation instructions

Contents

70 GPSMAP 620 and GPSMAP 640 Owner’s ManualAppendixWater ImmersionThe unit is waterproof to IEC Standard 60529 IPX7. It canwithstand immersion in 1 meter of water for 30 minutes. Prolongedsubmersion can cause damage to the unit. After submersion, becertain to wipe and air dry the unit before reuse.Avoiding Theft• To avoid theft, remove the unit and mount from sight when notin use.• Do not keep your unit in the glove compartment.• Register your product at http://my.garmin.com.Additional MapsYou can purchase additional MapSource map data from Garminand load the maps in your GPSMAP 620 or GPSMAP 640 internalmemory or on an optional memory card.To determine the versions of the maps that are loaded on yourdevice, open the Menu page. Touch tools > Settings > Map >Map info. Check www.garmin.com/unlock/update.jsp to see ifan update for your map software is available. To enable additionalmaps, you need your unit ID (page 65) and serial number (locatednear the power connector).To load maps or waypoints in your device memory or onyour memory card, select the name for your GPSMAP 620 orGPSMAP 640 drive or memory card drive. Refer to the MapSourceHelp file for more information.About GPS Satellite SignalsYour GPSMAP 620 or GPSMAP 640 must acquire GPS satellitesignals in order to navigate. If you are indoors, near tall buildingsor trees, or in a parking garage, your device may not acquiresatellites. Go outside to an area free from tall obstructions to useyour device.When your GPSMAP 620 or GPSMAP 640 has acquired satellitesignals, the signal strength bars on the Home screen (or Menupage) are green. When it loses satellite signals, the bars turn red orclear.For more information about GPS, go to www.garmin.com/aboutGPS.Extras and Optional AccessoriesFor more information about optional accessories, go to http://buy.garmin.com or www.garmin.com/extras, or contact your Garmindealer.