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A short press of the TRIP key will display the Trip distance. To reset the trip to
zero first select trip by pressing the TRIP key. When the trip distance is shown
press and hold the TRIP key until the display shows ’F’. The trip is then reset
to
zero. The trip distance is shown in tenths of nautical miles up to 99.9nm and in
single miles up to 999nm thereafter.
A short press of the TOTAL key will display the total distance. The unit will
display the total distance travelled to 999 nautical miles. This counter cannot
be reset.
A long press of the SPEED key will return to the speed display
CALIBRATION
The calibration is preset in the factory. The type of hull and the position of the
paddlewheel may affect the performence of the unit. If the log under or over
reads then the calibration factor can be adjusted to compensate.
Enter the Engineering mode by first turning off the power supply to the
instrument. Press and hold the SPEED key whilst the power supply is turned
back on. The word ENG will appear on the display. Press either the TRIP or
TOTAL keys to display the calibration setting. This is normally 100(%) when it
leaves the factory. Press TRIP to increase or TOTAL to decrease the number.
Each press will increment or decrement the number by 1%. When the desired
calibration factor is attained a long press of the SPEED key will return the unit
to normal operation. Both speed and distance are calibrated simultaneously.
The calibration factor is stored in a non-volatile memory and is retained when
power is off.
