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Summary of Contents for Fairhaven Micro Alti 2
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Page 3: Getting Started
Based on the success of the original Micro Alti, the Micro Alti 2 has been redesigned from the ground up, using today’s sensors and electronics, providing the ultimate sensitivity and battery life in a wristwatch size... - Page 4 The time clock and timers are on the left button, altimeter and barometer references are on the right and various other functions are on the middle button. After displaying a function, for example temperature or altimeter type, that function will be remembered when you return to the button. After checking the time, the menu will automatically return to the previous function without having to press it again, and after selecting the averager it will return to the current altimeter after a few seconds.
- Page 5 The ALTI button Three types of altimeter and barometers are accessed with the ALTI button. A quick press shows the altimeter or barometer name before displaying the reading, a further press while the name is displayed moves to the next. QNE indicates altitude relative to the standard pressure of 1013.25mB.
- Page 6 The next option on the ALTI button is BARO. This will indicate your local barometric pressure which will usually differ from barometric pressure in weather reports which are referenced to sea level. Increasing altitude will cause a decrease in pressure by approx 1mB per 30 feet above sea level, decreasing at higher altitudes.
- Page 7 The TIMER button The TIMER button gives access to the time clock, alarm timer and stopwatch. An initial press of the TIMER button shows the current time and will automatically revert to its previous mode (current altimeter, temperature etc.) without further key presses. Press again to keep the clock displayed along with the vario.
- Page 8 Alarm setting: A long key press on the TIMER button allows hours to be set using the left and right buttons followed by the SET button. Minutes can then be set in the same way. Press the SET button again to begin the countdown and ALARM ON will be displayed before returning to the altimeter.
- Page 9 The Middle Button The first item on the middle button is the averager. This is a useful tool to find your overall rate of climb when flying conditions create short bursts of lift and sink. The averager is selected on the middle button along with the averaging time, e.g.
- Page 10 Battery shows the actual battery voltage. The upper segments of the display will only indicate while charging, after which a full charge is indicated with around 80% of the segments showing, which is around 4 volts. “BAtt” will flash whenever the battery voltage drops to level “2” on the battery display.
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Page 11: Operating The Radio
The final menu item is the FM radio. This option is included as many people use devices to listen to music in flight and the Micro Alti is a convenient choice as the vario tones are blended with the radio. While we don’t encourage activity that might distract from the task of flying, listening to music is generally allowed if done with due caution and does not divert your attention;... -
Page 12: Sub Menus
to chose a memory number, then press the SET button to store the station. A long press on left or right will exit scanning mode without storing a station. The vario tones are also sent to the headphone socket and the volume of the radio should be adjusted to give a suitable blend. - Page 13 Right Sub Menu PIZO - Allows the piezo bleeper to be turned off when not required by selecting “n”, selecting “Y” will turn the vario’s tones back on. Select “A” to allow the tones to turn on automatically if barometric pressure changes by more than 1mB.
- Page 14 VOLUME - Sets the volume of the bleeper in 20 steps. Use the left and right buttons to set the level as required. This does not affect the headset volume. Lower volume levels will give slightly longer battery life. UP threshold (UP th) - This sets the climb rate at which the vario begins to bleep.
- Page 15 PACE of tones - This sets the scale of the vario’s tones. So if you are generally searching for small amounts of lift, such as when ridge- soaring, a high setting will make the vario more responsive to small altitude changes. If, on the other hand, you are used to flying at higher climb rates, such as when thermalling, a lower setting will be more useful as the audio tones will vary more gradually over a larger range.
- Page 16 DEFS - Loads typical flying defaults: Lift tone=100mm/second, Lift finder threshold=1.1m/s, sink threshold=2m/s. SHUT DOWN TIMER - Automatically shuts off the Micro Alti when there is no activity, to save the battery. The timer can be set from 1 minute to 6 hours.
- Page 17 FW VERSION - Shows the firmware version. Fairhaven will occasionality provide updates to improve features and operation of the Micro Alti. SN (SERIAL NUMBER) - Displays the Micro Alti 2’s unique serial number. (You may wish to take a note of this).
- Page 18 Note: When using a piezo extension bleeper, use a stereo jack plug and leave the jack’s ring unconnected. (Fairhaven can supply this part).
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Page 19: Audio Tones
Audio tones The lift tone is a “bleep-bleep” that increases in rate and pitch as rate of climb increases. The thermal finder tone is a short chirp that increases in frequency above the glider’s sink rate and the sink tone is continuous tone that starts high and reduces in frequency indicating sinking air. - Page 20 Battery The battery is a 100mA re-chargeable lithium polymer type that is automatically recharged when the Micro Alti is plugged in to any USB 5 volt supply, such as a computer, phone charger, sat-nav lead or solar charger and we have included a charger that plugs into your car’s cigarette lighter socket.
- Page 21 Headphone Socket USB Socket Humidity Sensor Options Connector Piezo Bleeper Power Button (Press and Hold) MICRO ALTI 2...
- Page 22 NOTES...
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