Contrast …
This function allows you to change the display contrast to your liking. You can select values from
about 20 to 45. (can vary depending on display type).
Backlight …
This function allows you to switch the display backlight on or off.
The backlight is normally left on. Should you need to reduce current consumption of the
instrument for special applications you can switch the backlight off.
ALT
Select if you want your altitude readout in feet (ft) or meters (m).
QNH
Select if you want your local pressure readout in millibars (mB) or inches or mercury (“HgA).
ALT cal
This is a technical function that is used to calibrate your altimeter to an exact reference. On the
back of your altimeter you will find the calibration number that has been determined to result in
the most accurate reading of your altimeter. This is the value that should be entered here. Should
you have access to an accurate reference you may use this function to calibrate your altimeter.
Before you do this, ensure that you have your local pressure set to coincide with a calibrated and
certified reference.
Your altimeter has been calibrated by the factory to an accuracy of +/- one mB or approximately
+/- 30 ft (10m).
VSI
Select if you want to show the built in VSI (vertical speed indicator). The built in VSI will be shown
just above the altitude readout. VSI will be displayed in feet/minute or m/s depending on your unit
selection.
Main display showing VSI readout disabled
Zero VSI
This function is used to set your VSI to read exactly 0ft/min. This is similar to setting the needle
on a mechanical VSI to point to zero by turning the adjustment knob on such a VSI.
Summary of Contents for Stratomaster Maxi Single ALT-3
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