Maretron DSM150, Руководство пользователя

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Revision 1.4.18 Page 15
Total Fuel Economy
– displays distance traveled per unit fuel used (for example, miles per gallon
or kilometers per liter) using the specified GPS and specified engine instances within the
favorite screen setup (see Section 5.2.6.4.2 for details).
Total Fuel Rate
– displays rate of fuel usage per unit time (for example, gallons or liters per hour)
for all engine instances specified within the favorite screen setup (see Section 5.2.6.4.2 for
details)
Total Fuel Remaining
– displays total fuel remaining in all fuel tanks specified within the favorite
screen setup (see Section 5.2.6.4.2. In order for the DSM150 to properly calculate total fuel
remaining, tank monitors connected to the network must provide tank capacity in addition to
fluid level.
Distance to Empty
– displays the distance you can travel before all fuel is consumed, assuming
all conditions remain the same. The DSM150 computes distance to empty using several
different parameters including the total fuel remaining (see above) and fuel economy (also
discussed above). Remember, conditions can rapidly change that may drastically effect
distance to empty. For example, if you are going out to sea with the wind and current behind
you, the distance to empty may indicate that there is enough fuel to return home when in fact
there isn‟t enough fuel to return. Distance to empty is only applicable if the conditions remain
the same.
Time to Empty
– displays the amount of time you can travel before all fuel is consumed,
assuming all conditions remain the same. The DSM150 computes time to empty using total
fuel remaining (see above) and the engine(s) fuel rate. Remember, conditions can rapidly
change that may drastically effect time to empty. For example, if you are going out to sea with
the wind and current behind you, the time to empty may indicate that there is enough fuel to
return home when in fact there isn‟t enough fuel to return. Time to empty is only applicable if
the conditions remain the same.
Total Fuel Capacity
– displays the total capacity of all fuel tanks. The DSM150 can only compute
total fuel capacity assuming all totalized tanks are transmitting their capacity.
Total Fuel Level
– displays the percentage of fuel remaining in all fuel tanks.
Total Fuel Consumption
– displays the total volume of fuel used per unit of distance traveled (for
example, gallons per mile or liters per km) using the specified GPS and specified engine
instances within the favorite screen setup (see Section 5.2.6.4.2 for details).
4.2.12 GPS
Course Over Ground
– displays the current Course over Ground (either true or magnetic
depending on the “Heading:” setting found under the “Units…” menu item)
Lat/Lon
– displays the current latitude and longitude of the vessel
Speed Over Ground
– displays the current speed over ground
Status
– displays the current operating mode and status of the specified GPS receiver
4.2.13 Heading
Magnetic/True
– displays the current heading of the vessel (the direction the vessel is pointing)
relative to true or magnetic north depending on the unit setting of the heading parameter (see
Section 5.2.7.1)
Rate of Turn
– displays the angular rate of rotation of the vessel about the vertical axis
Variation
– displays the magnetic variation used to convert between true and magnetic headings