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DPI 740 User Manual
Entering a Pressure Datum for Altitude Measurement
The indicator stores the pressure datum used in altitude
measurement in volatile memory with a default value of
1013.25 mbar. To enter a new pressure datum proceed as
follows:
1.
Press the MODE push-button to select altitude
measurement mode (confirmed by the display showing
"ALTITUDE" on the status line).
2.
Press F1 to show the measurement menu.
3.
Press F2 to change the altitude settings by selecting
"SET_ALT".
4.
Press F1 if the datum required is the ISA. To enter any
other datum press F2.
5.
Press either F1, F2 or SET to allow the datum to be entered
(the display stops flashing).
6.
Use F1 to increase the datum value and F2 to decrease
the datum value.
Note:Pressing and holding either F1 or F2 changes the value
at a fast rate. Pressing and holding MODE and either F1 or F2
accelerates this fast rate.
7.
When the datum value is correct press SET, the display
returns to altitude measurement corrected using the new
pressure datum.
Note:Pressing the MODE push-button steps menu back one
setting, allowing a value to be corrected.
K0200 Issue No. 1
17
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