Garmin GMI 20 - Manual (Page 18)

1 GMI 10 Quick Start Manual
Alarms and Messages
Battery Voltage—alarm – the battery voltage is at or below the specified
value.
Boat is not Moving Fast Enough to Calibrate—water speed calibration
– the boat is moving too slow to calibrate.
Connection with NMEA 2000 device lost—the GMI 10 has lost connection
with a NMEA 2000 device.
Deep Water—alarm – the boat has entered water deeper than the specified
depth.
Entering Target Surface Temperature —the water temperature is inside
the user-defined target temperature zone.
Leaving Target Surface Temperature —the water temperature is outside
the user-defined target temperature zone.
Lost Satellite Reception—a connected GPS antenna has lost satellite
reception.
NMEA Depth Is Below Transducer—the NMEA depth input is using the
DBT sentence which does not include keel offset.