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LXNAV Airdata indicator, User Manual, Page: 9 / 18

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LXNAV Airdata indicator User Manual Download Page 9

Rev #02 

Version 1.0 

November 2020 

 

 

Page 9 of 18 

5

 

Operating modes 

The  Airdata  indicator  has  only  one  main  screen,  quick  menu  for  QNH  and  setup  mode.  

When powered on, main screen will be shown. Short press any button to access QNH menu. 

Long press middle button to enter setup mode 

5.1

 

Main screen 

Primary function of ADI is to display indicated airspeed.  Indicated airspeed is displayed with 

needle on user customizable dial.  A great care has been taken when designing a dial, which 

is  nonlinear  to  have  better  resolution  in  thermaling  range.    See  chapter  5.3.2.1  how  to 

customize speeds markings on the dial. 

 

In  the  middle  of  screen  altitude  is  displayed  as  rolling  counter.  On  the  right  side  vertical 

speed  is  drawn  as  a  magenta  bar.    Additionally,  two  numerical  values  can  be  show.    See 

chapter 5.3.1 how to customize main screen. 

5.2

 

QNH mode 

QNH mode is used to enter QNH. Press and key to enter this mode. It will display current 

QNH  and  elevation,  if  you  are  still  on  the  ground.  Press  upper  or  lower  button  to  change 

QNH. On th ground display will look like one the picture below. 

 

Upper numerical 

parameter 

Vertical speed 

indicator 

Altitude rolling 
counter. 

Lower numerical 
value 

Altitude units 

Airspeed units 

Indicated 

airspeed needle 

Dial with custom 

airspeed 
markings 

Summary of Contents for Airdata indicator

Page 1: ...Rev 02 Version 1 0 November 2020 Page 1 of 18 Airdata indicator User Manual Version 1 0 LXNAV d o o Kidričeva 24 3000 Celje Slovenia tel 386 592 33 400 fax 386 599 33 522 info lxnav com www lxnav com ...

Page 2: ... 3 Selection control 7 4 4 4 Spin control 8 4 4 5 Slider control 8 5 Operating modes 9 5 1 Main screen 9 5 2 QNH mode 9 5 3 Setup mode 10 5 3 1 Display 11 5 3 2 Airspeed 12 5 3 2 1 Speeds 12 5 3 2 2 Calibration table 12 5 3 2 3 TAS method 13 5 3 3 Vertical speed 13 5 3 4 Temperature 13 5 3 5 Battery 13 5 3 6 Warnings 14 5 3 6 1 Altitude warning 14 5 3 6 2 Speed warning 14 5 3 7 Units 15 5 3 8 Syst...

Page 3: ...te of purchase Within this period LXNAV will at its sole option repair or replace any components that fail in normal use Such repairs or replacement will be made at no charge to the customer for parts and labour the customer shall be responsible for any transportation cost This warranty does not cover failures due to abuse misuse accident or unauthorised alterations or repairs THE WARRANTIES AND R...

Page 4: ...Rev 02 Version 1 0 November 2020 Page 4 of 18 2 Packing lists Airdata indicator ADI Power supply cable OAT probe ...

Page 5: ...ensors are sampled 50 times per second Real time data is displayed on a QVGA 320x240 pixel 2 5 inch high brightness color display Three push buttons are used to adjust values and settings 3 1 1 ADI features An extremely bright 2 5 QVGA color display readable in all sunlight conditions with the ability to adjust the backlight Three push buttons are used for input Logbook 100 Hz sampling rate for ve...

Page 6: ...ormal operation it is not necessary to have SD card inserted Micro SD card is not included with new ADI 4 3 Switching on the unit There is no special action required to switch on the unit When power is applied to the device it will switch on and will be ready for immediate use 4 4 User input The user interface consists of dialogues which have various input controls They are designed to make the in...

Page 7: ...les or disables an option Press middle button to toggle selected option If an option is enabled a check mark will be displayed otherwise an empty rectangle will be drawn 4 4 3 Selection control Selection control is used to select a value from a list of predefined values Press middle button to enter edit mode Currently selected value will be highlighted in blue Use upper and lower button to select ...

Page 8: ...rm selection with short press on middle button Long press middle button to cancel selection and exit without changes 4 4 5 Slider control Some values such as volume and brightness are displayed as a slider Press middle button to enter edit mode Slider background colour will change to white Use upper and lower button to increase or decrease value Long press will make a bigger increase or decrease C...

Page 9: ... range See chapter 5 3 2 1 how to customize speeds markings on the dial In the middle of screen altitude is displayed as rolling counter On the right side vertical speed is drawn as a magenta bar Additionally two numerical values can be show See chapter 5 3 1 how to customize main screen 5 2 QNH mode QNH mode is used to enter QNH Press and key to enter this mode It will display current QNH and ele...

Page 10: ...lculation Vertical speed change vertical speed filter and total energy compensation if needed Temperature define temperature offset Battery select chemistry of battery which is being used for ADI in order to have proper battery indication Warnings ADI can display user defined warnings for speed and altitude Units define system of measure System time enter current time and data for recording purpos...

Page 11: ...yle Gauge defines background color of airspeed dial which can be black or default white Cursor style user can choose between three different cursor styles Brightness sets current screen brightness If automatic brightness is enabled then this control will show current brightness If the Automatic Brightness box is checked the brightness will be automatically adjusted between the minimum and maximum ...

Page 12: ...se refer to aircraft manual to enter appropriate speeds You can also enter Vne at different altitudes If Vne are entered for different altitude then speed marking for Vne will change with altitude and gives a pilot proper warning for maximum speed 5 3 2 2 Calibration table User can make corrections to the indicated airspeed for instrument and position error Use this table to enter corrections By d...

Page 13: ...r faster aircrafts 5 3 3 Vertical speed Vario bar filter value defines response of the vertical speed indication Higher value of filter will cause more slow and more filtered response of vertical speed indication TE compensation is used mainly for gliders in order to show total energy change rather than vertical speed Set to 100 if you want to have compensated vertical speed indication or leave on...

Page 14: ...r written in the middle of the screen 5 3 6 1 Altitude warning Two altitude warnings can be defined First altitude warning is set for altitude ceiling and will be triggered warn me before seconds you are going to reach this ceiling Second warning is defined for altitude floor and will be triggered when you are about to descend to this altitude 5 3 6 2 Speed warning User can select airspeed alarm f...

Page 15: ...nu the user can set the local time and date Available is also an offset from UTC UTC is used within the recorder 5 3 9 Password Password menu is used to access special function Mostly calibration parameters and resetting sensors etc Please consult manufacturer before using it 01043 Auto zero of the pressure sensor 00666 Reset all settings to factory default 16250 Show debug info 40000 Set airspeed...

Page 16: ...ith S3 power or any other FLARM cable with RJ12 connector 6 2 Pressure ports connections Two ports are on the back of Airdata indicator Pstatic static pressure port and Ptotal pitot or total pressure port Pin Number Description 1 Power supply input 2 No connection 3 Ground 4 RS232 RX data in 5 RS232 TX data out 6 Ground ...

Page 17: ...wer supply scheme is compatible to any FLARM device with RJ12 connector On the back it is fitted with two pressure ports for total pressure and static pressure More about pinout and pressure ports connections is available in chapter 7 Wiring and static ports 7 1 Cut out The length of the screw is limited to maximum 4mm ...

Page 18: ...Rev 02 Version 1 0 November 2020 Page 18 of 18 8 Revision history Rev Date Comments 01 September 2020 Initial release 02 November 2020 Updated Ch 4 2 ...

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