Garmin GPSMAP 546s - Manual (Page 70)

Appendix
64 GPSMAP 400/500 Series Owner’s Manual
Specification Model Value
Sonar 431s/441s Power:
• 1 kW Transducer (536s/546s only), 1,000 W
(RMS), 8,000 W (peak to peak)
• Dual Frequency, 500 W (RMS),
4,000 W (peak to peak)
• Dual Beam, 400 W (RMS),
3200 W (peak to peak)
Frequency:
50/200 kHz (dual frequency and 1 kW), 80/200
kHz (dual beam)
Depth
• 2,500 ft� (762 m) (1 kW),
• 1,500 ft� (457 m) (dual frequency)
• 900 ft� (274 m) (dual beam)
Depth capacity is dependent on water salinity,
bottom type, and other water conditions�
531s/541s
536s/546s
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