Yacht Devices YDBC-05, Руководство пользователя

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Programming the Device is performed by changing the chart datum or magnetic
variation setting on the plotter. The Device confirms the command by producing
a single signal (unless shown otherwise in Table 3). The Device must be previously put
into programming mode (STEP 2).
Please note that changing the Device settings occurs only when changing the plotter
configuration. To increase the value of the message setting by 3, first change the setting
to the first value from Table 3, then to the second, and then back to the first one. After
each change, wait for the Device confirming signal (lighting of LEDs for 3 seconds).
Usually, when changing the setting, the plotter sends notification immediately
and the Device signals just after the setting value is changed.
STEP 4. Saving the settings in the non-volatile memory
Without turning the Device power off, change the chart datum setting on the plotter
to “WGS 1984”, or magnetic variation setting to 27°W. The Device will save
the settings in the non-volatile memory, produce three confirming signals, and return
to normal operation mode. If you do not save the settings into the non-volatile memory,
they will be kept only until the power is turned off (see STEP 2). Do not forget to return
the initial chart plotter settings after programming.