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4 Setting the Barometric Pressure
MicroTim XB contains a barometric pressure setting which allows the user to enter the current local barometric
pressure to correct the altitude readings for weather changes.
To VIEW the current barometer setting, press either of the alt keys once. MicroTim XB will display the
barometer setting for 5 seconds.
To CHANGE the barometer setting, repeatedly press/release the alt keys until the desired barometer
setting is achieved.
When viewing altitude in ‘metr’ (meters/kPa) mode, the barometric pressure reads in units of kPa and 101.32 kPa
will display as 10132.
When viewing in ‘ftmb’ mode, the barometric pressure reads in units of mbar (millibars). Note that since the
decimal point is not shown, mbar units will display the same as kPa units. For example, 1013.2 mbar will read as
‘10132’.
When viewing in ‘feet’ mode, the barometric pressure displays in units of inHg, and 29.92 inHg will display as
2992.
5 Field-Elevation Mode
Many users will not have access to the current barometric pressure for their area, but will know their current
starting elevation. Trial and error finding the correct barometric pressure setting to produce this known starting
elevation can be tedious. To ignore barometric pressure altogether, and dial in a known starting elevation, place
MicroTim XB in field-elevation mode.
To toggle MicroTim XB between field-elevation (fld) and barometric pressure (bp) modes, do a quick press/release
each of the keys in the following sequence:
That is: up/down/up/down/zero, up/down/up/down/zero.
Then ‘fld’ or ‘bp’ will appear on the screen, verifying that the mode has been successfully changed. Repeat this
sequence until desired mode appears.
Note: To prevent accidental activation of the bp/fld mode selection, MicroTim XB ignores the sequence if more
than 2 seconds elapses between any of the keypresses in the sequence.
Once field-elevation mode is achieved, pressing the alt keys now immediately displays the newly adjusted
altitude. In this mode MicroTim XB does not display the barometric pressure at all but still adjusts the altitude by
0.01 inHg (0.339 mbar or about 9.3 feet) with each or keypress.
Note: Upon reset, MicroTim XB defaults to ‘bp’ mode.
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