1.3 Installation procedure (LX Zeus and Eos/Era)............................................................................. 7
Installation of LX Zeus ............................................................................................................................... 7
1.3.1 Installation of LX Eos/Era ............................................................................................................. 7
LX Zeus 2.8 ............................................................................................................................................. 10
LX Zeus 2.8 Retrofit ................................................................................................................................ 10
LX Zeus 4.3 ............................................................................................................................................. 10
LX Zeus 5.5 ............................................................................................................................................. 10
LX Zeus 7.0 ............................................................................................................................................. 10
PART TWO - SOFTWARE .......................................................................................................................... 11
2.1 Display organization and management ...................................................................................... 11
2.2.2 Pilot ............................................................................................................................................ 15
2.2.4 LX Eos ........................................................................................................................................ 18
2.2.13 User interface ......................................................................................................................... 30
2.3 System Setup ................................................................................................................................ 41
2.3.1 Units ........................................................................................................................................... 41
2.3.5 Transfer ..................................................................................................................................... 47
2.3.6 Service ....................................................................................................................................... 51
10.1 Use of LX Remote Stick ............................................................................................................... 83
10.2 LX Remote Stick on second seat ................................................................................................ 83
11 LX JOY ............................................................................................................................................... 84
11.1 General .......................................................................................................................................... 84
11.4.2 Downloading flights from Second seat .................................................................................. 89
PART THREE – FLYING ............................................................................................................................ 90
12 FLYING WITH LX ZEUS .................................................................................................................... 90
12.1 Flight preparation on the ground ................................................................................................ 90
12.1.1 Before take off ........................................................................................................................ 90
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LX Zeus v4.0.2
12.2 During flight .................................................................................................................................. 92
12.2.1 Set MacCready (MC), Ballast, Bugs and QNH ...................................................................... 93
LX Navigation is one of the oldest glider navigation brands. Its founders started experimenting with glider
computers way back in the '70-ies and the Company has been working on improving your flight
performance ever since.
Throughout the last 40 years or so it has been working on instruments that most pilots will have used at
some time. In fact our equipment can be found in almost any gliding club !
Our equipment has always been ground-breaking.
Our motto?
Be the first. Be the best. Be different.
Why Zeus?
Because Zeus is a top of the line product. Crème de la crème.
Used by pilots from all over the world, our instruments offer the best for both cross country soaring and
competitions. The LX Zeus is the latest in this tradition.
Devices
We offer a wide range of instruments suitable for both club and competition soaring.
Our systems combine two components:
First, a glider computer (LX Zeus) which is used for calculating and displaying all of the key information
used by pilots. This glider computer is the brain of the operation.
The second part of the system is a variometer (Eos, Helios, and Era). Its job is to gather the information
which the Zeus uses. The vario has pressure connections as well as the GPS antenna connection which is
required for IGC logs.
There is a wide variety of choice for varios and for LX Zeus display sizes.
All our varios are standalone devices which can be used without a glider computer for displaying basic
flight parameters such as final glide information, Speed Command (SC) as well as simple navigation. Our
varios also have an internal battery which means that your IGC logs do not depend on your glider`s
batteries.
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LX Zeus v4.0.2
System extensions (second seat unit, remote control (LX Joy), compass, NavBox, MOP, Flap sensor, AHRS
...) are also possible. Everything is connected using a CAN bus (single cable for power and data). All
connections are plug and play, which means no specialist is required to install the system.
1.2 Operation
Front panel interface
Communications between the pilot and the instrument is done via two rotary knobs and 8 push buttons.
All buttons and rotary switches have a double push function (short and long press). All buttons are
labelled which makes unit manipulation very easy. The top labels are selected with a short press.
Bottom labels are selected with a long press. On Zeus 2.8” and Zeus 4.3” there is a 4-4 button
arrangement. On other screen sizes the button arrangement is 5-3.
Both rotary knobs are multifunctional as follows:
Default functions:
Volume rotary knob
o Volume adjustment function - scroll
o Select (TP, APT, TSK) - short press
o Shortcuts - long press
Zoom rotary knob
o Zoom adjustment function – scroll
o Open more options (TP, APT, TSK) - short press
o Edit NavBoxes – long press
In edit:
Volume rotary knob: bigger steps when selecting values and escape/cancel by pressing it
Zoom rotary knob: scrolling and press confirmation
USB/SD
There are two ways of transferring files: either via USB or via SD port. A standard USB-A female port is
available on each device (on Zeus 2.8 slim USB keys should be used). The port is exclusively used for data
transfer and firmware updates. The micro SD port is only used when Flarm is connected (Flarm Red Box,
Swiss Flarm and optionally Flarm Mini Box). The micro SD port is used for direct communication with
Flarm, which means downloading flights stored on Flarm, uploading declaration and Flarm firmware
updates.
Back panel interface
On the back side of the unit there are the following connectors:
2x CAN bus*
2x User ports
Flarm port (12 V power and data) *
Flarm display output
USB – A port
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LX Zeus v4.0.2
Note!
Check labels near pneumatic connections on LX Eos/Era, during pneumatic tube connection
process to ensure correct connection.
* CAN bus connects LX Zeus to:
LX Eos (57/80)
LX Era (57/80)
Second seat unit
LX Joy
LX NavBox
LX Flaps sensor
LX MOP
LX AHRS
1.3 Installation procedure (LX Zeus and Eos/Era)
Installation of LX Zeus
The dimensions of larger units (4.3, 5.5 and 7.0) do not match air norm standards (57 or 80mm). A new
cut out in the panel is necessary. There are two ways to prepare the panel:
The first option is to buy a new panel from the glider manufacturer and the second is to upgrade the
existing panel. The user can also do a panel upgrade and, in that case, basic experience in fiberglass
technology will help. (LX Navigation can provide additional instructions on how to rebuild the panel by
yourself – just ask!)
Every unit (except the 2.8 inch, which fits an 80mm instrument hole) is supplied with a carbon which makes
it possible to make the LX Zeus cut out by hand. If a CNC solution is planned, then please ask for .dwg file.
1.3.1 Installation of LX Eos/Era
The unit occupies one 57 mm or 80 mm standard cut-out. The maximum dimensions of LX Eos/Era 57 are
60x60 mm max and they do not exceed the dimensions of classic pneumatic instruments. LX Eos/Era 80
mm are 82x82 mm max. LX Eos/Era is shallow, which means that there shouldn’t be any problems
installing it as regards space behind the panel.
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LX Zeus v4.0.2
At this side the rounded rubber is touching the
back plate of display, do not push it too tight
At this side the rounded rubber is
pressed fully to the plate.
1.3.2 Screen rotation
The screen can be rotated by using password 9109 under Setup > Service > Admin password. The buttons
must be rotated by hand. Follow the procedure below:
1. Open the unit (remove all screws and cover)
2. Move rounded rubber to the middle
3. Take out the button and rotate it to the proper position
4. Put button back on blue button (be careful that blue button is inside the black hose)
5. Put rounded rubber back to the first position (be careful with the Rotary knobs as the rubber
must not be pushed all the way in)
1.3.3 Connecting LX Zeus with LX Eos/Era
This part of the installation is easy and doesn’t require any specialists. LX Zeus and LX Eos are connected
via a CAN bus cable. Connect one end of the cable into Eos CAN bus port and the other into any of the CAN
bus ports on the LX Zeus. LX Zeus receives power from LX Eos/Era. All data from and to LX Zeus and LX
Eos/Era goes via a single CAN cable.
LX Eos receives power via two power lines, which should be connected to 12V glider power source and
ground. The red wire is +12V and blue wire is Ground.
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LX Zeus v4.0.2
Important!
When LX Eos/Era is connected, the terminator must not be connected to the system, because there
is a terminator integrated in LX Eos. Only one terminator should be used at once.
12 V
Connect supplied power cable with switch to 2-pole connector on LX Eos/Era.
LX Eos/Era and LX Zeus turn ON when the user switches the power ON. This is not the case if LX Eos/Era is
a standalone version, which has different hardware and requires a push on the knob to turn ON.
For more information about LX Eos/Era refer to LX Eos/Era manual!
1.4Update procedure
LX Zeus software is constantly being upgraded. Please contact your local dealer for the latest upgrade.
The latest version, together with a change log, is always available on our website (www.lxnavigation.com).
The upgrade procedure is very simple, just follow these steps:
Put the upgrade file (Zeus-x.y.z.kus) onto a USB stick
Insert USB stick into LX Zeus
Turn on LX Zeus (If it is already powered on it should be restarted)
Hold VARIO/FLARM button until the blue window opens
Select upgrade with a push on the Zoom rotary knob
Find the update on the USB stick
Select the file with a push on the Zoom rotary knob
Wait for installation, when an Initial setup screen shows then the update is finished
All devices connected to CAN bus will be automatically updated
In a Double-seater configuration the system may ask if this is FIRST or SECOND seat (confirm
correct one)
In case of Double-seater configuration repeat the whole procedure on the second seat LX Zeus
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LX Zeus v4.0.2
1.5 Technical specifications
LX Zeus 2.8
This version of Zeus can be installed into any standard 80 mm panel cut out and therefore does not require
an instrument panel upgrade. Display orientation is only landscape.
LX Zeus 2.8 Retrofit
Zeus 2.8 Retrofit is the same display size as Zeus 2.8 but differs in hardware. Vario (USB-D) module is inside
the main unit and only a vario indicator is needed. The back of the instrument is the same as for LX 5000
(2x 15pin connectors). If the LX 5000 had a 25-pin connector, an adapter for 2x15 to 25-pin is needed,
which can be supplied from LX navigation. An old vario indicator can also be used. The attraction of the
Retrofit solution is that all wiring remains as is.
LX Zeus 2.8 Retrofit is not available for purchase anymore so this instruction relates only to those pilots
who have this system already fitted.
LX Zeus 4.3
This version has a 4.3-inch display with 800x480px resolution and has the following outline dimensions:
83x136x52 mm
LX Zeus 5.5
This version has a 5.5-inch display with 640x480px resolution and has the following outline dimensions:
106x146x52 mm
LX Zeus 7.0
This version has a 7.0-inch display with 800x480px resolution and has the following outline dimensions:
110x190x52 mm
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LX Zeus v4.0.2
Speed
Follow me
Final glide
Wind
Header
Digital Speed
Vario
Airspace info
PART TWO - Software
2.1 Display organization and management
The available information can be personalised and adjusted to meet the user`s requirements and is set
out in the following paragraphs.
Compass assistant (assists the pilot when flying with a compass module)
Airspace info (information about closest airspace. If no airspace is within selectable limits this
indicator is transparent.)
Limitations (Start conditions)
Map scale
AHRS
Flaps position
Follow indicator (shows position of a Flarm object being followed)
Flarm indicator (used to show Flarm collision warnings. If no warning is available this indicator is
transparent).
Best alternate APT info (shows the pilot the best alternate airfield nearby (APT database) besides
the one being navigated to). If no APT is available this indicator is transparent.
2.1.1.2 NavBox line customization
The bottom row consists of customisable NavBoxes. This
means that the pilot is able to create his own configuration.
This simple procedure is also available during flight. The
user can set different configurations for TP, APT and TSK
navigation. It is possible to copy configurations from one
page to another. (Done under Setup>Layout). The
procedure starts with a long press on the Zoom rotary
knob. After the long press a frame appears around the first
NavBox. Rotating the Zoom rotary knob positions the
frame. When the desired frame position is reached, a short
press of the Zoom rotary knob again will open a list of
available NavBoxes.
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GENERAL
G-force
Circling radius
Last full turn time
Recommended flaps position
Current flaps position
Wind speed
Wind direction
Air temperature
Distance in NM to selected TP/APT
Distance to selected TP/APT
Off course distance
OLC distance
OLC home distance
OLC speed
OLC speed in last hour
OLC score
Horizontal distance from airspace
Vertical distance from airspace
Arrival QFE (no reserve)
ETE - Estimated time en-route
Current efficiency
Average efficiency
Required efficiency
Track
Bearing
Radial TP/APT
Compass heading
Digital clock
Analog clock
Flying time
ETA (current speed)
ETA (average speed)
ETA (McCready speed)
2.1.1.3 List of available NavBoxes
SPEED
Indicated air speed
True air speed
Ground speed
Vario
Average vario
Netto vario
Average netto vario
Relative vario
Optimum speed to fly
ALTITUDE
Altitude QFE
Altitude QNH
Altitude QNH in ft
Maximum altitude QNH
Altitude IGC
Altitude GPS
Above ground level
Flight level
Thermal gain
Thermal last 30
Thermal average
Thermal all
Set MacCready
Required MacCready
Sink speed
Final glide (selected MC)
Final glide (with terrain)
Final glide (MC 0.0)
TASK
Time on task
Time on leg
Time to go
Required speed
Task speed
Task speed in last hour
Task elapsed distance
Task remaining distance
Task delta time
Team code
Team bearing
Team distance
Leg speed
Task distance
LX Zeus v4.0.2
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LX Zeus v4.0.2
Note!
All settings active at the moment of
new pilot creation under “Pilot” will
be adopted.
To terminate the process, press the Volume rotary knob (“Go back”).
Up to nine bottom rows can be used selectable with 1-4 push buttons. To create a new row simply press 14 and a new row will open. The display configuration may consist of one, two or three NavBox rows. See
Setup/Layout for details.
2.1.1.4 Header
The header cannot be customized. Only the transparency can be set: go to Setup>Layout. From left to right
there is information about:
Current navigation page (TSK, TP or APT)
Current navigation turn-point
Distance and steering information to get to the navigation point
LX Joy status (N = normal, Z = zoom, P = pan)
Battery status
GPS signal status
Current time in selected format (hh:mm:ss)
2.2 Setup
2.2.1 Setup
The setup menu is available after a short press on the
push button labelled SETUP. The menu is divided into two
sections (Pilot and System settings). System settings are
settings that are valid for the whole system and are not
pilot specific settings. Pilot settings may vary from pilot to
pilot according to individual requirements. Icons with text
will help in finding the menu of interest.
Use Zoom rotary knob and rotate it to find the
menu of interest (selected icon is highlighted)
Use push function of Zoom rotary knob to enter
menu
2.2.1.1 Pilot specific settings
The data stored in this part of Setup is pilot specific data.
After pilot selection on initial setup, the data of an
individual pilot becomes active. All settings are saved to
the pilot profile and are active when the pilot is selected
(reserve altitude, logger settings, NavBox container,
layout settings, task colours etc.) It is possible to
export/import user profile settings with a USB stick.
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LX Zeus v4.0.2
2.2.2 Pilot
The Pilots name and certain personal data
can be stored. All stored pilot names will be
offered during initial setup and selecting a
pilot is mandatory. The system offers a
default user profile with the name
DEFAULT which can be used as a default pilot.
Furthermore, plenty of empty positions are offered and
this can be used for another pilot using the instrument.
Some additional parameters can be entered, such as
pilot’s weight, default ballast and reserve altitude– all
settings are used for final glide calculation.
TDT calculation (task delta time)
This information is shown in a NavBox and presented only if the task time has been set. If task time is set
the unit will recognize this task as assigned area task (AAT). The purpose of TDT is to inform the pilot of
early or late arrival to the finish line/cylinder.
For TDT calculation one can choose between 4 different options:
• Average task speed is based on current task speed
• MacCready is based on actual based MC value
• Ground speed is based on average ground speed in last 20 seconds
• Combined (default) is based on multiple parameters including: selected MC, wind
sped/direction, polar, bugs, ballast, reserve altitude. This is the recommended method for
calculation
AAT calculation
To help the pilot optimize distance inside a sector there are equidistant lines displayed. They are shown
inside the active zone. This feature is only available in automatic AAT mode. Flying along these lines will
not increase the distance and may lose time on task. Ideally one should fly perpendicular to the lines.
AAT calculation offers two options:
Automatic (default)
This method doesn’t need any pilot assistant at all and the pilot can turn to next turn point at any time
without using any commands. Zeus will automatically detect the optimum point in every sector on
task. Switching to the next turnpoint is performed by:
o Reaching the line which is crossing the centre of the sector or a moved turnpoint. Reaching
this point will only switch navigation to next turnpoint (for your information). One can still
proceed inside this sector and Zeus will find the optimum position inside the sector to start
the new leg. A new leg in statistics will start automatically when the optimum point is reached.
o Leaving an active sector. When the glider is more than 5km out of the sector it will switch. This
is done only if there was no automatic switch inside the sector (you did not cross the line over
centre of the sector or moved point) or if the next Next TP button was not pressed manually
whilst inside the sector.
o Using Next TP button. This command can be used without influencing statistics. It will only
change navigation data.
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LX Zeus v4.0.2
Manual switching requires specific action in every sector on task. The Next TP button has to be
pressed to switch to next Turnpoint. The position at which Next TP button was pressed is then
used for task statistic calculation. In the case of a wrong decision the pilot should use the leg restart
function and, when he is ready again, he should then press next TP.
Limiting altitude
Limiting altitude means altitude limit set that will turn on the altitude warning alert.
When this is set, the pilot can choose:
Warn before
Warn with audio signal
Show dialog when over limit
User defined warnings
The pilot can make user defined warnings, which will
give and alert when the conditions assigned have
been fulfilled.
To make a user defined warning go to Setup > Pilot
select User defined warnings and select “add new”.
1. Then can be defined:
o Conditions check frequency (How
often Zeus checks if the conditions
are fulfilled).
o Repeat interval (How often should
the warning be repeated).
o Auto close after… (the length of
time the warning should remain
before disappearing).
2. To add the text to appear on the screen
as a warning, select Text, and add the
desired text.
3. The final step is to add conditions (one or
more) which will determine when the
warning appears:
o Choose a parameter (Choose from -
flight time, air temperature, ballast,
air speed, QFE altitude, battery
voltage, distance to destination (to
current TP or APT)
o Operator (Choose relation to the
reference parameter)
o Value (depending on chosen
parameter)
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LX Zeus v4.0.2
o Connect condition with (if there is more than one condition, select what conditions are
to be connected with AND or OR)
oWhen your condition is complete select “Add cond” (if you want to remove it, select
“Clear cond”).
o When finished select Exit
It is possible to edit all user-defined warnings, and to delete them.
Other useful information
User (pilot) settings can also be saved to the USB stick and importing a user done by pressing the buttons:
Import user (VARIO/FLARM) and Save user (TSK/MOVE). There is also an option to a set password to each
pilot profile to prevent other pilots flying with the same unit and changing the pilot settings (this function
was specially developed for flying in clubs). After a press on clear password the password will be removed.
To delete a user, simply select delete user.
2.2.3 Audio
This menu defines audio configuration. The
audio generator is a part of the vario unit
(USB D 60), but settings are stored in LX
Zeus. Audio settings do not appear if there
is a LX Eos connected to the system.
Instead there is a LX Eos icon where the LX Eos can be set
up. For more information please check the LX Eos chapter.
Speed command mode:
•Defines audio in SC. The most commonly used
setting is both which means SC will beep in both positive
and negative deflections
Speed command volume:
•Defines audio volume in SC; it may be increased or
decreased
Vario tone:
•Defines audio in vario mode; the frequencies can be adjusted and also the types of audio; use
Test vario after adjustment
Alarm: The audio generator is also capable of generating some alarms (warnings) combining two
frequencies. Set frequencies and time intervals and use Test to check.
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LX Zeus v4.0.2
2.2.4 LX Eos
All settings for LX Eos are done on LX Zeus.
LX Eos settings appear only if LX Eos is connected to LX Zeus, otherwise, there are audio
settings for vario (see previous chapter for more information).
If the battery is too empty for the LX Zeus, the LX Eos will still work because it has an
internal battery. In this case, settings for LX Eos are set on the LX Eos device (for settings on LX Eos see LX
Eos manual)
Warnings
Warnings are used to inform the pilot that some flight
related data is outside the desired margins. When a LX
Eos detects a warning state, the pilot will get a red
warning message box with a description of what is
outside the margins.
By ticking the box the pilot can enable audio and Flarm
warnings.
oAudio: If disabled, voice warning will not be
generated – the only warning will be visual in
message box.
oFlarm: Flarm warning page will be seen only on
the Flarm radar page if this flag is disabled,
otherwise it will override any Eos page/menu
when a warning is detected.
oInputs: Must be turned on to enable input port
warnings such as airbrakes, gear etc
oAltitude: Warning when flying above a selected
altitude.
oStall speed: Warning when the glider speed is
lower than stall speed.
oVne speed: Warning when speed exceeds Vne.
Audio
Variometer sound frequency can be changed.
Negative frequency means the frequency when the variometer indicates sink of -5.0 m/s (-10 kts).
Zero frequency is frequency when variometer indicates 0.0m/s.
Positive frequency is frequency when variometer indicates climb of 5.0 m/s (10 kts).
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Inputs
LX Eos offers the possibility of five different user defined
inputs. Each input can be set accordingly.
There are seven options to choose from:
None: nothing is connected to the input.
SC: the device changes mode from vario to SC
mode
VP: (vario priority) the device goes to vario mode
no matter what the SC is selected to
Event: an event when a flight recorder is activated
and pilot gets a message shown on display
Gear: If enabled under warnings, warnings will be
generated such as gear up/down warnings after
takeoff / before landing
Airbrakes: if enabled under warnings, will
generate airbrakes warning if they are opened
during takeoff
LX Zeus v4.0.2
The pilot can also select if the switch is working in normal mode or if it is working in inverted mode. Normal
mode means that the switch is enabled when contact is closed, inverted means that switch is enabled
when contact is opened.
If two or more inputs are the same, the corresponding action will be made when all of them are active
(active = switch opened!). The answer as to how to connect switches to external switch interface, and
what “active state” is, can be found in the external switch installation section of LX Eos manual.
NMEA
This setup page is used to set what data is sent to a thirdparty unit connected through Bluetooth or USER port.
The pilot can set baud rate (BR) for communication
through the USER port or Flarm port.
The pilot can select from: BR4800, BR9600, BR19200,
BR38400, BR57600 and BR115200 options.
LX Eos is capable of sending NMEA data to third party
units such as PDAs or PNAs. The data is available on the
connector marked as USER and Bluetooth port. Five data
strings are offered. Selected (check box) NMEA data will
be sent over the USER port and Bluetooth:
GPGGA – Global Positioning System 3D-Fix Data
GPRMC – Recommended Minimum Specific
GPS/TRANSIT Data
GPRMB – TP navigation info
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LX Zeus v4.0.2
Note
When Radio option is enabled (KRT2 or ATR833) all other outputs on User port are disabled, but
are still present on Bluetooth port.
LXWPx – sentences contain pressure and altitude information in addition to IAS data
PFLAx – Flarm traffic info. Data must be enabled, if Flarm data is required on a PDA
Radio – Select which radio is connected to Eos USER port. KRT2 and ATR833 were tested and are
supported at the moment. Baud rate on USER port is automatically set to 9600
Pages
The pilot can select which main pages are active on LX Eos.
A page is active when its box is checked.
There are five main pages available:
TA (thermal assistance)
Flarm
TP (turnpoint)
TSK (task)
GPS info (basic GPS information)
AHRS (if AHRS module is connected)
2.2.5 Voice
In the case of LX Eos, or if LX Voice Module is a part of the system, the following settings can
be used: If Enable all or Disable all are pressed the pilot can enable / disable all voice
commands at once.
Volume:
Voice volume: defines volume of voice messages
Vario mixer: defines the balance of volume between Audio and Voice
General Information:
Enable or disable general information about pilot, glider and elevation
Task Information:
Enable or disable information about task, turn point, final glide and time
Warnings:
Enable or disable warnings
Flarm:
Enable or disable information about Flarm and warnings
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LX Zeus v4.0.2
2.2.6 Vario-SC
Settings in this menu define vario
characteristics and some other important
inputs connected to vario and speed
command.
Vario:
Vario filter defines the dynamics of the vario
needle. Lower number means faster reaction
and vice versa.
Integration time (displayed on vario unit)
The time period used for the integrator
Vario scale, three options (2.5, 5 and 10 m/s) (or
5, 10 and 20 kts, if selected in Units).
Other:
Silence range, defines range of no audio around
zero when in speed command
SC switching threshold, changeover speed at which it will change from Vario to SC if Automatic SC
switching is enabled
Automatic SC switching, defines speed parameters for automatic change over to SC
External switch mode*, determinates external SC switch status which change over to SC
*LX Zeus-LX Eos
Connect the external switch of input interface, which is connected to the input port on the rear of LX Eos.
It does not matter to which of the 5 inputs it is connected. Then go to the Setup page on Zeus and navigate
to LX Eos page. Next go to input and select one input as the SC option.
Next, go to Vario-SC setup:
Setting the External switch mode to ON means that closing the switch will enable SC mode, and setting
External switch mode to OFF means that closing the switch will select Vario mode. There is a third option
that can be enabled by setting External switch mode to Toggle and connecting a push button. Now each
press will toggle between SC and Vario (This is the obligatory setting when using the LX Remote or LX Joy).
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LX Zeus v4.0.2
Wire
Shield
Open
Setting: ON
Status: VARIO
Wire
Shield
Open
Setting: OFF
Status: SC
Wire
Shield
Closed
Setting: ON
Status: SC
Wire
Shield
Closed
Setting: OFF
Status: VARIO
Wire
SC marked
cable
Shield
Shield
*LX Zeus-USB D 60:
LX Zeus has a connection for an external speed command switch, which is wired to the vario unit (USB D
60). By using an external switch, it is possible to switch between SC and Vario manually. Setting the
External switch mode to ON means that closing the switch will enable SC mode, and setting External
switch mode to OFF means that closing the switch will select Vario mode. There is a third option that can
be enabled by setting External switch mode to Toggle and connecting a push button. Now each press will
toggle between SC and Vario (This is the obligatory setting when using the LX Remote).
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2.2.7 Indicators
Needle
SC* dot ind.
Needle status indicator
Lower num. indicator
Upper num.
* Vertical speed of air mass
** Vertical speed – 0.8 m/s
Note!
Setting Altitude QNHft sets Altitude indication
in ft, no matter what is set in Units.
The indicators page is used for setting up varios with mechanical needles and colour
graphic displays. One indicator is defined as a variometer. The system is capable of driving
secondary indicators identified as ‘’Number 1’’ through to ‘‘Number 4’’. For LX Eos
repeater, connect it to Lx Zeus second seat CAN bus port.
LX Zeus v4.0.2
In general, every indicator consists of a mechanical needle, SC dot, needle status indicator, upper/lower
digital indicator, battery indicator and a GPS signal indicator. It is important to point out that the settings
should be done separately for vario and SC mode of operation. A radial moving dot serves as a continuous
speed to fly indicator; this cannot be changed. On theLX Eos, there is a radial moving arc that serves as a
speed to fly indicator. Additionally, there are GS (ground speed) and wind indications, plus some other
status icons (Flarm, Bluetooth, etc.) which cannot be changed.
Used terms explanations:
Vario needle: means the needle function in vario mode, alternatives are: vario, Netto*, SC,
Relative**
SC needle: means the needle function in SC mode, alternatives are: Netto, Relative, Vario
Vario upper No.: means the display indication with option of: integrator, time, flight time, leg time
Vario lower No.: means the display indication with option of: altitude, distance, glide difference,
true air speed, leg speed, QNH, flight level
SC upper No.: means the display indication with option of: integrator, time, flight time, leg time
SC lower No.: means the display indication with option of: altitude, distance, glide difference, true
air speed, leg speed, QNH and flight level
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LX Zeus v4.0.2
Number
Switch
IND 1
x x
IND 2
x
x
IND 3
x
x
IND 4
x x
Note!
Indicators installed for the
second seat should be connected
to front seat with 485 bus
Note!
Units having Adr1
will simply repeat
what is displayed
on the vario.
Higher addresses
make different
settings possible.
2.2.7.1 Secondary indicators
Secondary indicators should be connected via the 485-system bus; there are three 9P connectors at the
back of the unit. All contacts are in parallel so it doesn’t matter which one is occupied. The unit can be also
used as a 485-system bus splitter. To define indicator number use DIP switches which you find at the back
of the unit.
Once indicator functions have been defined, switch the unit off and then on again, this procedure will
memorize the settings and it will then be possible to adjust the settings on LX Zeus.
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2.2.8 Flarm
This menu is used for changing the Flarm
visualisation parameters. The only executive
command which can be sent to Flarm unit is
privacy mode.
Activation of privacy mode will send the Flarm unit into
“stealth mode”, which means that the data transmitted
to and from Flarm unit is limited.
Others commands are:
Show objects till zoom defines the distance at
which a Flarm object appears on the map
Rel. altitude interval sets the altitude difference
for a Flarm object to appear
Glider icon size
Airliner icon size (any powered aircraft)
Show Flarm tails
Tail colour
Tail width
Use above/below colour coding (makes it possible
to define the colour for above and below Flarm
objects)
LX Zeus v4.0.2
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2.2.9 Logger
Note!
Pilot and glider data are sent after task Declaration process has been executed. See section Flying.
LX Zeus uses LX Eos and/or Colibri II as an IGC
approved flight recorder. Both units
collaborate so that all necessary settings can
be sent to all flight recorders connected to the
system (LX Eos, Colibri II). No action is required on LX Eos
and Colibri II when flight recorders are connected to LX
Zeus.
Recording interval is set to 5 seconds by default. Event
repetitions are set to 20 and event fix interval to 1 second.
This means that when press “Event” button is executed
the logger will create 20 records in 20 seconds (one per
second).
The extra recording option means that you can select the
recording of Ground speed into log file.
LX Zeus v4.0.2
This menu is usable only if LX Eos and/or Colibri II is
connected to LX Zeus. If settings are changed, they will
not affect Flarm IGC or any other connected Flight
recorder.
In a double seat configuration, the second seat pilot is also able to change flight recorder settings. The
process is the same as for the first seat.
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Note!
Hide above airplane option will remove airspace
sections which are higher than the setting. This will
reduce the clutter on the graphic page significantly.
1000
Show on zoom, defines appearance of particular airspace sections on the display. Appearance is
connected to zoom. Airspace warning can be set as active () or as not active ().
LX Zeus v4.0.2
2.2.10 Airspace
All settings connected to Airspace
management are available in this menu.
Example of Hide airspace above:
• The maximum vertical and horizontal distance
to which airspace in Airspace info box on map
is displayed can be set. If there isn't any
airspace that fulfil these conditions the
Airspace info box will not appear
• Hide above QNH altitude to disable airspace that is above set QNH altitude
• Audio warnings (on vario) when airspace warning appears on the LX Zeus can be dismissed
(dismiss buttons)
Default warnings for airspace are set to 2 km horizontally and 100 m vertically but these warning settings
can be adjusted. Warning timeout at takeoff is pre-set to 5 minutes, which means, that during the first 5
minutes after takeoff there will not be any airspace warnings.
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LX Zeus v4.0.2
2.2.11 Wind
LX Zeus is able to measure wind
using different methods; these can
be selected in the Wind menu.
Wind calculation results are shown
as a standalone indicator on the
main graphic page and also as a NavBox, if set.
The pilot can choose between two circling
methods: one which measures wind during circling
flight and the second method using straight flight.
The wind calculation is used for numerous
calculations (TDT, Final glide, etc.).
2.2.11.1 Circling model
Speed difference is based on the variation of ground speed (GS) using the wind detected whilst in
circling flight. This method is only active during circling. (In straight flight the wind data remains
unchanged). The process is started automatically once circling is detected. After two circles the
wind indication (direction and speed) will be updated and displayed. This method is based on the
ground speed being affected by the wind. GS is, of course, at its maximum with a tailwind and
minimum with a head wind and this is used for the GS difference calculation method. To get a
result the pilot should do two turns as a minimum, more turns will improve the result. Please note
that up to 90 degrees turn or more is required as some time is needed to detect circling status. It is important to keep constant IAS speed during circling. However, other factors are also taken
into account to cancel out the fluctuations of airspeed while circling. This wind calculation method
is the default and preferred approach.
Position drift calculates wind regarding to position change during circling. Such a method needs
more circles than speed difference (from 4 up to 8). The number of circles should be set in Drift circles option. If both methods, straight model and position drift are selected, the Zeus will give a
combined result.
2.2.11.2 Straight model
None: If you select none, you will have the wind from the latest circling method.
Iterative: This method will update the wind in straight flight. It is a special method developed by
LX Navigation and delivers accurate wind measurements by using sophisticated algorithms. With
this method, you do not need a compass. The pilot will, however, get good wind speed and
direction results. This method does not supplement Head/Tail method and, for best results, a
constant IAS is required.
Compass: The Compass system requires the compass module to be connected to the unit using
the 485 bus or CAN bus. Wind calculation is based on the wind triangle method. Under this
approach, airspeed, ground speed and wind create a triangle of vectors. A compass device offers
magnetic heading, which defines the direction of the airspeed vector. To measure wind using a
compass straight flight speed and direction must be kept as stable as possible.
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LX Zeus v4.0.2
*Compass module is a standalone electronic device, which
can be connected to LX Zeus via 485 bus (or CAN bus for
newer versions.) The unit delivers the magnetic track to the
LX Zeus. However, to get accurate measurements, it is
essential to have good compass calibration.
Note:
Compass option is available
only if the compass module is
connected.
Head/Tail: Shows difference between GS and IAS.
Time for straight flight: Time in seconds that will be taken for one measurement (valid for straight
model). The longer the period the better the result. This is valid only for the compass method and
not for the Head/Tail one.
Drift circles: Sets how many circles are required to calculate the position drift.
Compass assistant: Is a special symbol that appears on the display and helps to keep flight
parameters (speed and direction) stable during calculation.
2.2.11.3 Manual wind settings
Set manually - manual wind speed and direction can be set which will be displayed and used for
all calculations.
2.2.11.4 Influence of wind in final glide
The actual wind data (speed and direction) influences the final glide calculation. In task mode the final
glide indication is based on the remaining distance over all TPs until the finish (not over turn points already
overflown). Wind influence for individual legs is based on actual wind data. Using the Head/Tail method
will define wind direction on actual track being flown and this value will be taken into final glide calculation.
2.2.12 Task
The Task menu allows the setting of
default zones for quicker and easier
task creation.
Under Other settings can be set:
- TDT calculation sets the task delta
time calculation method
- AAT calculation sets whether the
next TP is set automatically or by hand
- Task start navigation sets the point
to which your glider computer will
navigate
- Sync with TP navigation sets the
same turnpoint for Task and TP menu
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