Airmar PB200 - Manual (Page 29)

PB200 WeatherStation User Manual revision 1.000
Proprietary and Confidential
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7. Note: During user compass calibration, heading is not valid and will be output as DataNotAvailable. Also, air temperature is set to 0 degrees Celsius. After calibration is
complete, heading will again be valid, and if successful, air temperature will also return to the current temperature, but if calibration fails, air temperature will be output as
-10.0 degrees Celsius for 30 seconds.
To exit user calibration mode before it passes or fails, PGN 126208 Command Group Function message is sent. Fields 1, 3, 4 and 5 must each be fully specified, field 5 is set to 0
(X, Normal, Cancel).
To reset user calibration coefficients and damping control, PGN 126208 Command Group Function message is sent Fields 1, 3, 4 and 5 must each be fully specified, field 5 is set
to 2 (Reset All).
To reset just user calibration coefficients, PGN 126208 Command Group Function message is sent Fields 1, 3, 4 and 5 must each be fully specified, field 5 is set to 4 (Reset
Calibration).
To reset just user damping control, PGN 126208 Command Group Function message is sent Fields 1, 3, 4 and 5 must each be fully specified, field 5 is set to 5 (Reset Damping).
To request status or current user calibration coefficients, PGN 126208 Request Group Function message is sent Fields 1, 3, and 4 must each be fully specified. PGN 126720-33,
will be transmitted with status set to 0 for QUERIED, 1 for PASSED, 2-4 for FAILED, or 5 for IN-PROGRESS.
Fields 8-16 can be used to set User Calibration Coefficients. PGN 126208 Command Group Function message is sent Fields 1, 3, 4 and the field or fields to be set must each be
fully specified. Currently only Linear Offsets and Damping values are supported.
Failure modes: 2 = FAILED: 5 minute timeout occurred before successful completion or more than 30 seconds was taken to turn thru 45 degrees, 3 = FAILED: Tilt Error, or 4 =
FAILED: Other Error, such as, reversing the direction of the turn for more than 45 degrees.
The user compass calibration procedure can be aborted by purposely causing one of the above errors. For example, stopping the turn will cause an error within 30 seconds, or
reversing the direction of the turn will cause an error even faster.
User compass calibration procedure does not affect Pitch and Roll Damping or Compass/RateGyro Damping, but this PGN can be used to change the damping control values.