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MGL Avionics ALT-2, Руководство по эксплуатации, Страница: 6 / 13

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ALT-2 Operating Manual

Page 6

       

             

   
      

4.1 Exit Menu

Pressing the rotary  control on this menu item will cause the ALT-2 to exit the menu system. All 
changes made during navigation of the menu system will be saved in non-volatile memory on exiting 
the menu system.

 

If you remove power before exiting the menu the instrument will not save any 

changes.

4.2 Maximum Values

To  avoid  false  recordings,  the  maximum  values function   is  only  activated  10  seconds  after the 
instrument has powered up.

Move the highlight over the “DONE” menu item and press the rotary button to return to the main 
menu.

Move the highlight over this menu item and press the rotary button to reset the maximum altitude 
and airspeed values to the current values.

4.3 Display Setup

   

 

Move the highlight over this menu option and press the rotary button to return to the main menu.

Select this menu option to adjust the display contrast.

Note:  

(ADC Values and Calibrate Menus are only visible when powering up the unit and pressing the 

Rotary Control). The text “CALIBRATE” will appear on the intro screen when entering this mode.

Warning:

  The Calibrate Menu is for technical personnel only. Changing any values in this menu may 

cause the instrument to display incorrect information, and may require the instrument to be returned to 
the factory for recalibration. 

Содержание ALT-2

Страница 1: ...hat has to be kept 1 Features Precision altimeter from 700 ft up to a maximum of 30 000 ft 213m to 9144m The ALT 2 outputs various formatted RS232 serial data protocols compatible with serial input transponders such as that from Garmin Magellan Northstar Trimble Microair etc The altimeter can display altitude in feet or meters local pressure can be set in millibars or inches of mercury Contains a ...

Страница 2: ...F2 Button Down button in menu system Main display scrolling in normal mode Rotary Control Up Down Enter Button Press the rotary control during normal mode to access the menu system Rotate anti clockwise for up down menu scrolling During normal mode rotating the rotary control will adjust the local pressure setting Local pressure can be set in either mB or in Hg Pressure Ports Pressure ports connec...

Страница 3: ...n band has been exceeded Altitude unit Barometer can be turned off in the menu system Local pressure readout either in millibars or in inches of mercury Digital VSI readout Logarithmic analog VSI indicator VSI units Digital VSI readout can be turned off in the menu system Altitude relative to mean sea level Local pressure readout either in millibars or in inches of mercury Altitude unit Digital VS...

Страница 4: ...w the pilot to enter a reference altitude Enter the reference altitude you would like to use in relative mode Use the rotary control to adjust the reference altitude Press the F1 up key to accept 3 6 Density Altitude display Density altitude is a perceived altitude that pertains to your current altitude and temperature and to a lesser extent on your current moisture content of the air Density alti...

Страница 5: ...control button during the normal display mode will cause the ALT 2 to enter the menu system Use the up down keys or the rotary control to navigate through the menu system Temperature unit OAT reading Temporary maximum and minimum OAT since instrument power up reset using the F1 up key Local pressure readout either in millibars or in inches of mercury Digital VSI readout can be turned off in the me...

Страница 6: ...to return to the main menu Move the highlight over this menu item and press the rotary button to reset the maximum altitude and airspeed values to the current values 4 3 Display Setup Move the highlight over this menu option and press the rotary button to return to the main menu Select this menu option to adjust the display contrast Note ADC Values and Calibrate Menus are only visible when powerin...

Страница 7: ...tude readout in feet ft or meters m Select if you want your local pressure readout in millibars mB or inches of mercury Hg Select if you want the barometer to be displayed on the altitude screens or not Select the protocol of the RS232 output message The protocol can be selected between GARMIN AT Magellan Northstar Garmin Trimble Garmin MGL Avionics and Microair UAV Please see section 5 for more i...

Страница 8: ...I reading and decreasing the value decreases the reading Suggested VSI calibration method After you have installed the instrument perform a calibration flight This should be done in very calm conditions Turbulence and thermal activity will make accurate calibration impossible Many areas have ideal conditions during early mornings or late afternoons Place the instrument in feet unit mode for ease o...

Страница 9: ... RS232 Altitude Encoder output The ALT 2 outputs a formatted serial RS232 message that can be directly interfaced to various RS232 serial input transponders such as those from Garmin Trimble Magellan Northstar and Microair The message contains the current pressure altitude with a fixed reference to 1013 25mB 29 92 inches mercury All protocols use 8 databits no parity and 1 stop bit The message is ...

Страница 10: ...item on the display will flash At the same time the externally available alarm switch will close The switch will remain closed until any button is pressed to acknowledge the alarm or until the condition s that activated the alarm no longer exist The alarm output can be used to switch an external alarm indicator The external alarm switch is an open collector transistor switch to ground with a maxim...

Страница 11: ...s not change during flight and is equivalent to the outside air pressure you may find that it is not required to connect a static port For installations in typical ultralight aircraft pods be aware of possible pressure changes inside the pod during flight caused by ram air or suction effects This may lead to a false indication of altitude Often these effects are dependent on the current angle of a...

Страница 12: ...ort Dimensions DB 9 Pin Color Function 1 Black Ground 2 Orange OAT Sensor 3 Green RS232 Output to transponder 4 NC Airtalk communication Not connected Used for firmware upgrading 6 Red 8 30Vdc power 9 White Alarm Output Inches Millimeters Min Max Min Max A 0 182 0 194 4 62 4 93 B 0 420 0 440 10 67 11 18 ...

Страница 13: ... valid and relevant pilot s license This person has to make themselves familiar with the operation of this instrument and the effect of any possible failure or malfunction Under no circumstances does the manufacturer condone usage of this instrument for IFR flights Other instruments in the Stratomaster Infinity series ALT 1 Precision encoding altimeter and vertical speed indicator ALT 2 Precision ...

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