Garmin zumo 450 - Manual (Page 63)

GPSMAP 400/500 Series Owner’s Manual 5
Appendix
Sonar
Power: 1 kW Transducer, 1,000 W (RMS),
8,000 W (peak to peak)*;
Dual Frequency, 500 W (RMS), 4,000 W (peak to peak)
frequency: 50/200 kHz (dual frequency and 1 kW)
depth: 2,500 ft. (762 m) (1 kW), 1,500 ft. (457 m)**
*1 kW transducers are supported by the GPSMAP 525s/526s/
555s/556s units only.
**Depth capacity is dependent on water salinity, bottom type,
and other water conditions.
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.