B&G H5000 Analogue Expansion - Manual (Page 56)

56 | Sensor calibration | H5000 Operation Manual
Masthead unit adjustment
This provides an off set calibration in degrees to compensate for any mechanical misalignment
between the masthead unit and the center line of the vessel.
To check the masthead unit alignment error we recommend you use the following method
which involves a sailing trial.
Sail on a starboard tack on a close hauled course and record the wind angle, then repeat the
process on a port tack. Divide the diff erence between the two recorded numbers and enter
this as the wind angle off set.
33º 27º
WIND
Starboard Tack Port Tack
Starboard tack = 33º
Port tack = 27º
Diff erence : 33º - 27º = 6º
Off set : 6º / 2 = 3º
If the starboard apparent wind angle is greater than the port angle then divide the diff erence
by 2 and enter this as a negative off set. If the port angle is greater than the starboard then
divide the diff erence by 2 and enter this as a positive off set.
MHU Align
Once the off set has been calculated enter it into the MHU Align calibration fi eld