NS350
Operating Manual
17
Note :
During normal usage, if you select a mode which has been disabled by
setting off the race functions, then
’OFF’
will be displayed on the screen.
RESet to factory compass calibration values : RES
When set to ’ON’ and when the select key is pushed, the default factory
calibration values of the compass are restored and the
NS350
is powered off
automatically.
User CALibration of the magnetic compass : CAL
When set to ON and when the select key is pushed, the
NS350
enters a set of
sub-menus to allow a user calibration of the magnetic compass. There are 10
sub-menus for which the user has to follow the sequence described below.
To allow the maximum accuracy of the calibration procedure, it is recommended
to perform this outdoors to avoid any magnetic disturbing fields. A wooden
surface is highly recommended (e.g. a table) and it is necessary to ensure that
there are no ferrous materials nearby (wrist watches should be removed).
To start with draw 2 perpendicular lines (X and Y axis) on a perfectly horizontal
plan. On the lower screen of the display, the calibration sub-menu number is
displayed. There are 10 steps to follow in order to complete the calibration of your
Table 1: Race functions activation
RAC Off
Magnetic Heading :
MH
(
MHH/ MHM/ MHL
)
On
Wind Shift Indicator :
WIN
Off
Tack Indicator :
TAK
Off
Roll Angle Indicator :
ROL
On
Timer :
TIM
On
Advanced Operations
