42 GPSMAP ® 4000/5000 Series Owner’s ManualappendIxappendIxInitializing Unit SettingsThe first time you turn your unit on, you must configure a series of initial settings. These settingsmust also be configured when restoring factory settings.NOtE: You can change these settings later using the Configure screen.Language—select the language to show on your screen.Welcome—select OK.Any NMEA devices?—select Yes if NMEA devices are or will be connected.AIS Connection—select the type of AIS devices (NMEA Standard, NMEA High Speed, or NMEA2000) connected to the chartplotter.NOtE: This option appears only if you selected Yes on the Any NMEA devices? screen.Position Format—specify the coordinate system to use for location readings.time Format—specify whether you want the time shown in a 12-hour, 24-hour, or UtC(Universal Time Code) format.time Zone—select your time zone.Units—specify units for onscreen measurements as Statute, Metric, or Nautical.Minimum Safe Depth—select the minimum safe depth for your boat. Refer to your boatspecifications for more information.Minimum Overhead Clearance—select the minimum overhead clearance for your boat. Refer toyour boat specifications for more information.Zone Alarm (shown if an AIS Connection is indicated)—select Yes to set zone alarms.Zone Distance (shown if answer to Zone Alarm is Yes)—select the estimated distance of collisionwithin which you want a zone alarm to sound.Zone time (shown if answer to Zone Alarm is Yes)—select the estimated time of collision withinwhich you want a zone alarm to sound.Calibrating the TouchscreenFor GPSMAP 5008/5012 units, you might have to calibrate the touchscreen.To calibrate the touchscreen on GPSMAP 5008/5012 units:1. Turn on the unit. When the Warning screen appears, touch and hold the black screen for atleast 15 seconds until the calibration screen appears.2. Follow the on-screen directions to calibrate the touchscreen.