Garmin 906-2500-01 GPS Receiver User Manual


 
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Dockside Setup: Steps 1-9 can be done at the dock before heading for open water.
5. RPM Source Conguration. The default setting on the autopilot is set for a Single
Engine. If you have twin engines or more, you will need to change [Code 259] to match
your motor conguration. Twin engines; Press, release and light up the [Setup] LED on
the handheld, press and enter [Code 259] on the handheld. Press the [Up Arrow] TWO
(2) times which is setting the parameter to [(4) Both]. See page 22 code 259 for more
information.
6. Verify the autopilot tachometer (Tach Sensor Cable) is functioning properly. With
the engine(s) running. Press, release and light up the [Setup] LED on the handheld, and
press and light up [code 35]. Press and hold the [Select Load] GPS button and you
should see the [Up Arrow] and [Down Arrow] LED’s blink your port engine’s RPM. For
example, when the [Up Arrow] LED blinks 2 times and the [Down Arrow] LED blinks
5 times your engine is running at 2500 RPM. [Code 36] works the same way as code 35
for the starboard engine instead of the port engine. The autopilot tachometer system has a
lower limit setting of 200 RPM. If needed, adjusting [Code 267] (pulses per rev) to make
your autopilot tachometer match the tach on your dashboard.
7. Transition RPM. This is the RPM at which your boat transitions from displacement
to planing speed. [Code 348] is set to a factory default of 3000 (2 blinks of the [Up
Arrow] LED and 9 blinks of the [Down Arrow] LED +1). You should set it to your
boat’s transition RPM. (Example: Say that your planing speed is at 2500 RPM’s; With
the [Setup] LED lit, press and light [code 348], since the factory default is 3000 which is
2 blinks of the up arrow and 9 blinks of the down arrow (The value can be seen with the
[Setup] LED lit, press and hold the [Select Load] GPS , release the select load button, then
click the down arrow 5 times; that will set your transition RPM’s at 2500.) If you don’t
know what the transition RPM is, you will need to do this as part of your Sea Trial Setup.
8. Download to permanent memory the parameters you have adjusted so far. (This
must be done) With the [Setup] LED lit, press and hold the GPS [Select Load] button
- the [load] LED should illuminate on the handheld, while still holding down the [Select
Load] button, press and release the [Deckmount], on/off button quickly, then release the
[Select Load] GPS button.
9. Verify NMEA Connections: Verify that the NMEA connections for the GPS are
functioning. Turn on the GPS. With the Autopilot in [Standby], press and release
[Setup] button on the handheld. Press and light up the number 4 and the number 8
LED’s[ Code 48]. If the [up arrow] LED lights when you hold down the [Select Load]
(GPS) button, the autopilot does not acknowledge the validity of the GPS data.