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There are two types of calibration procedures:

1. Horizon alignment calibration:
execute this calibration procedure to align the horizon line of the Ultra with the aircrafts straight & level flight attitude.

2. Compass calibration:
The purpose of this procedure is to compensate magnetic disturbances the Ultra is subject to, due to aircraft metal structures and electromagnetic components. These disturbances, if not compensated, could alter the heading value provided by the system. For this reason the magnetometer is disabled before the magnetometer calibration procedure is executed.
The procedure requires to point the aircraft nose in 4 directions (north, east, south and west
oriented to magnetic north). The total duration for this procedure is about 20 minutes.
The procedure is described in the user manual.

IMPORTANT: When the magnetometer of the Ultra is not enabled the Ultra uses GPS
source to show COG (course over ground) on the compass. To enable compass heading it
is necessary to calibrate the magnetometer. In case both GPS and magnetometer sources
are lost the compass becomes RED and is out of order.

IMPORTANT:
Before you proceed with the compass calibration, make sure that the horizon
line of the Ultra is aligned with the aircrafts straight & level flight attitude (see paragraph 3.1)

IMPORTANT:
The compass calibration procedure must be executed in an open field clean
of magnetic disturbances (we recommend at the compass rose of your airport).
Note: Most airports have a compass rose, which is a series of lines marked out on a ramp
or maintenance run up area where there is no magnetic interference. Lines, oriented to
magnetic north, are painted every 30° which is used to perform a compass calibration.




You can power the Ultra EFIS from an 10 to 35 Vdc supply.
Mount on the power wire (RED) the 1A fuse holder, provided in the box, to protect against short circuits.
Yes, the Ultra EFIS comes with an External GPS receiver.

Connect the external GPS receiveron the back side of the Ultra to the GPS port. The GPS receiver comes with a 1,5 meter cable and is designed for use inside the aircraft.

Note: an additional gps extension cable of 2 meter is available. The GPS receiver can be mounted to any convenient surface that has a clear view of the sky. It can be mounted on the aircraft’s dashboard using the included Velcro strip. The GPS receiver must have a clear view of the sky in order to receive satellite signals. GPS uses “line of sight” signals to locate and track satellites.
If the signals are obstructed by dense objects such as aluminum, steel or even heavy ice, the Ultra will not operate properly. Signals may also be blocked by heated wind screens (fibreglass, plexiglass and other plastics are normally transparent to GPS signals). If you find that the Ultra does not locate GPS FIX quickly or consistently, moving the location of the GPS receiver a few inches often provides a better view of the sky.
The Pitot and static ports on the back of the Ultra are equipped with 1/8” NPT female fittings. To connect the aircraft Pitot and static lines to the Ultra, you must use standard 1/8” NPT male fittings at the end of each of the lines. Installation along with other mechanical or digital altimeters and airspeed indicators is supported by mean of a T coupler (not included in the Ultra box).
Connect the Pitot line to the port labeled PITOT and the static line to the port labeled STATIC.

IMPORTANT: Use flexible plastic tubes and make sure the tubes fit tight on the NPT Pitot and static ports and can not get loose due to vibration.

IMPORTANT: We recommend to test the Pitot-static system for leakage after any alteration.

ATTENTION:  Make sure to properly calibrate attitude before proceeding with Compass Calibration.
the magnetometer calibration data is invalidated after every attitude calibration procedure (full attitude calibration and horizon alignment).

The Compass Calibration procedure must be executed in-flight and requires to steer the aircraft in 4 directions and execute some pitch up/down maneuvers. The total duration for this procedure is about 4 minutes.


Press MENU > TOOLS > EFIS > Compass Calibration.
The screen switches to Primary Flight Display mode, where a flight director (a magenta frame) shows the maneuvers to perform. Follow the magenta frame until the procedure is finished.
Assuming that the calibration is started with the aircraft heading North, the steps required are:

1.  Maintaining heading 000° execute: pitch up + 20°, back to straight flight and then pitch down -20°

2. Turn left to heading 270° by performing a standard rate turn (the proper bank will be shown by the flight director). The target heading for each step is shown as a magenta reference inside the heading tape.

3. Execute pitch up/down maneuvers as described in step #1

4. Repeat steps #2 and #3 for headings 180° and 090°, until reaching again the original heading.

5. At the end of a successful calibration procedures the compass instruments is enabled (i.e. red cross removed) and the HSI instrument correctly shows AHRS as data source, meaning that magnetic compass data are now available to the EFIS system.

Note: it’s not required to start the procedure heading north. Any starting direction is acceptable.
Note: If the calibration fails or the compass indicator is not enabled, repeat the calibration procedure. If several calibration attempts fails review the installation location of the A2. Magnetic disturbance could be too high in the selected area.



The small and light weighted ADAHRS module easily fits into the aircraft as it can be installed in any orientation (a proper calibration procedure must be performed). It is suggested to install the A2 aligned with the aircraft longitudinal axis, as it simplifies the attitude calibration process.

The right position should be:
- Near the pitot and static lines
-  In a location clear of strong magnetic or electromagnetic disturbances as much as possible.
- Avoid installing the A2 ADAHRS near electronic equipment (other digital EFIS, radios, transponders, etc), AC or variable DC cables, alternators, electrical motors, ferrous materials, etc. In such cases the proper behavior of the compass is not guaranteed (i.e.
the compass may be crossed as “out of order” or may give erroneous indications).

Hint: Use a hand-held compass to verify the magnetic disturbance in the area selected for installation. If the needle shows relevant changes or unstable indication, the location is not suitable for installation. Make sure to perform this test with all on-board electronic devices switched ON.



Scenario A.

No calibration needed.






Scenario B.
A2 ADAHRS  is aligned with the aircraft longitudinal axis, is not aligned with straight & level flight attitude but pitch and roll offsets are present: a Horizon Alignment procedure is required.






Scenario C.
A2 ADAHRS is not aligned with aircraft longitudinal axis,
nor with straight & level flight attitude:
Full Attitude Calibration procedure is required.
 


Horizon Alignment
Press MENU > STRUMENTI > EFIS > Horizon Alignment.
1. Make sure the aircraft is in straight and level flight attitude
2. Press the joystick to record a sample of pitch and roll angles



Full Attitude Calibration
Press MENU > STRUMENTI > EFIS > Full Attitude Calibration.

1. Select if the maneuver will be pitch up or down. For tricycle aircraft the pitch up maneuver can be performed by pushing the tail (pitch up), while tail draggers will execute a pitch down maneuver by raising the tail.

2. Reset A2 ADAHRS calibration data; select Start. Wait until the reset phase is completed.

3. Set the aircraft in level and straight flight attitude by using jacks or blocks (or by asking a friend to push or lift the tail and hold). Press ENTER (joystick click) to record the sample in level & straight flight.

4. Set the aircraft in a pitch up (or down) attitude and press ENTER to record the pitch up/down sample. WARNING: be very careful not to change the aircraft heading while performing the pitch up /down maneuver.

5. Set values to A2 by pressing ENTER. Wait a few minutes for the sensor to stabilize and realign. If pitch and roll after a few minutes are still not aligned fine-tune pitch and roll offset by executing a Horizon Alignment procedure.
To use EngiBOX RPM input in parallel with another RPM instrument depends on capacity of the other instrument. EngiBOX applies a 100 ohm load on RPM. Verify if the other RPM instrument is able to correctly measure RPM with a 100 ohm load applied between RPM input and instrument ground. This is equivalent to EngiBOX RPM usage in parallel with another RPM instrument.

First check if a compatible oil pressure sender is connected to the EngiBOX.

The first generation EngiBOX (model number UX0EMS00AM) is compatible with the oil pressure sender Keller 4-20 mA (Rotax P/N: 456180), which has a measuring range from 0 to 10 bar (0 - 150 psi).

The second generation EngiBOX (model number UX0EMS10AM) is compatible with oil pressure sender Keller 4-20 mA (Rotax P/N 456180) and resistive VDO sensor (Rotax P/N 956357 /  956415 ) or equivalent, both with measuring range from 0 to 10 bar (0 - 150 psi).

 

After wiring the  oil pressure sender to the EngiBOX, for the second generation EngiBOX (model number UX0EMS10AM) it is important to set the OIL P switch (on the rear side of the EngiBOX) to “ON” (position “2”) if you connected the Keller sender, or set the OIL P switch to “OFF” (position “1”) if you connected the resistive VDO sender. (see also page 10 of the User and Installation Manual).

Note: The OIL P switch is not present on the first generation EngiBOX as this model is only compatible with the Keller type sender.

 

After installation the correct sensor type needs to be selected during initialization setup.  It is possible to change the sensor type in the EngiBOX sensor menu. Check in the sensor menu if the correct  type of sender has been selected for oil pressure ( Keller 4-20mA or VDO ).

Unstable readings can be caused by a false contact of the sensor wire on the EngiBOX.

It is important to use the wire lock system to tighten all wires together that are connected to the EngiBOX (see figure 7 at page 11 of the User and Installation Manual). The wire lock system ensures that wires will not lose connection with the EngiBOX due to vibration in flight.

To see if the sensor wire is well connected  to the EngiBOX try to pull out the wire on the Engibox side, if the wire stays connected it means that it is well connected.

IMPORTANT: The oil pressure sender cannot be used in parallel with another instrument. Connect the oil pressure sender only to the EngiBOX.

IMPORTANT: Using non-compatible sensors  on the other parameter  inputs (OIL T, CHT or Coolant, EGT)  can cause false or erratic readings for the oil pressure. Make sure you connect compatible sensors on the EngiBOX as specified in the User and Installation Manual

For OIL T and CHT or Coolant use the correct resistance thermometer

For EGT use the correct thermocouple type K (ungrounded).

(To check the compatibility of the sensors please visit the FAQ: "Which sensors are compatible with Engibox?")


On the EGT value itself it might be difficult to find errors, BUT the wrong GROUNDED thermocouple sensor probe will cause erratic readings in all other engine parameters measured by the EngibOX (RPM, OIL P, OIL T, CHT).

Use a digital tester in "continuity test" mode (you can set it moving the rotor to the icon with the "speaker" symbol).

First test the digital tester itself:  Touch the red and black metallic points one with the other one and verify there is continuity (you will hear a "beep" sound).
Then test the thermocouple sensor probe with the Digital tester:
Place one contact of the digital tester on one of thermocouple wires (metallic part).
Place the other contact of the digital tester on the metallic part of the sensor probe that is in contact with engine.
If the digital tester detect that there is electrical continuity you hear the "beep" sound and you know that the thermocouple is grounded and not supported by the EngiBOX. If there is no electrical continuity you and you will not hear the "beep" sound you know that the thermocouple is ungrounded and supported by the EngiBOX.

 NO. EngiBOX supports only UNGROUNDED thermocouple sensor probes.

For the first generation EngiBOX model number UX0EMS00AM the following sensors are compatible:
 
 
4 x INPUT Thermocouple (type K)

Application: 
- Exhaust Gas Temperature (EGT) (2 Stroke / 4 Stroke)
- Cylinder Head Temperature (CHT) (2 Stroke)
 
2 x INPUT Thermoresistance (PT-100)

Application:
- Air Temperature, Coolant Temperature (2 Stroke)
- Oil Temperature, Cylinder Head Temperature / Coolant
- Temperature (4 Stroke)
 
1 x INPUT Oil Pressure pick-up (4-20 mA Rotax 456-180 or equivalent)

Measuring range: 0.75 to 10.75 bar
Application: Oil Pressure (4 Stroke)
 
1 x RPM pick-up

Measuring range: 100 to 9990 rpm

1 x INPUT Manifold Pressure

Measuring range: 200 to 2500 hPa
 
 
 
 
 
 
For the second generation EngiBOX model number UX0EMS10AM the following sensors are compatible:
 
 
4 x INPUT Thermocouple (type K and J)
 
Type K Rotax P/N: 966370
Type J Rotaz P/N: NA
 
Application: 
- Exhaust Gas Temperature (EGT) (2 Stroke / 4 Stroke)
- Cylinder Head Temperature (CHT) (2 Stroke)
 
 
 
2 x INPUT Thermoresistance (PT-100 and NTC)
 
NTC Rotax P/N:    965530 and 965531
PT-100 Rotax P/N: 966385
 
Application:
- Air Temperature, Coolant Temperature (2 Stroke)
- Oil Temperature, Cylinder Head Temperature / Coolant
- Temperature (4 Stroke)
 
 
 
 
1 x INPUT Oil Pressure pick-up (4-20 mA Rotax 456-180 or equivalent and VDO resistive 10 bar/150 psi)
 
Keller 4-20 mA Rotax P/N: 456180
VDO resistive Rotax P/N: 956357  /  956415
 
 
Measuring range: 0 to 10 bar / 0 to 150 psi
Application: Oil Pressure (4 Stroke)
 
 
1 x RPM pick-up

Measuring range: 0 to 9990 rpm
 
 
 
1 x INPUT Manifold Pressure

Measuring range: 0 to 70 inHG





 
 
Note: Thermocouple and Manifold pressure input can be used in parallel with other measurement
devices.
 
WARNING: Thermocouple, PT-100 and Oil pressure sensors must not be referred to GND or
negative external power.

Thermoresistance sensors (OIL T, CHT, CT and Air T) and OIL Pressure cannot be used in parallel with other measurement instruments
 
Power supply
Power the EngiBOX from an 10 to 35 Vdc supply. Mount on the power wire (RED) the 1A fuse holder, provided in the box, to protect against short circuits.
 
Serial Connection
The EngiBOX has serial RS232 connection ports to interface to an external device.
Note: current software 1.1.0R does not support serial in/out interface.
Wires safety
 
 
 
 
 
 
Latest Software version for the EngiBOX is v.1.1.0R. You can check on the ABOUT page the software version that is loaded on your device. 
If the software is older than 1.1.0R you can contact support@avmap.it in order to receive instructions for updating your device. Communicate your EngiBOX model number, serial number and current software loaded on the device.
To check the software version of your unit please visit the FAQ
"Where can I find the current software version on my Engibox?"
1. Press and hold the knob for 5 seconds, the Menu page will appear.
To go back to the main pages, press again for 5 seconds, or wait: the Menu page will be closed automatically after 10 seconds of inactivity.
2. Rotate the knob to select About item and press to confirm
3. In the about page you can read: the EngiBOX ID, Boot version, Loader version, Software version, Engine
type, Total lifetime of the engine and Time since last overhaul.


IMPORTANT: the EngiBOX ID is needed to register your EngiBOX through the EngiBOX APP, in order to download data and get customer support.
1. press and hold the knob for 5 seconds, the Menu page will appear.
To go back to the main pages, press again for 5 seconds, or wait: the Menu page will be closed automatically after 10 seconds of inactivity.

2. Rotate the knob to select SETTINGS and press to confirm

3. Rotate the knob to select BRIGHTNESS and press to confirm

4. Press the knob to open the brightness controller
• Rotate the knob to choose the desired display brightness
• Press the knob again to close the brightness controller

5. Rotate the knob to choose BACK and press to confirm and exit.


• 2 stroke Air cooled: Rotax 447 UL SCDI, Rotax 503 UL DCDI
• 2 Stroke Liquid cooled: Rotax 582 UL DCDI, Rotax 618 UL DCDI
• 4 Stroke Liquid cooled: Rotax 912 DCDI series, Rotax 912S DCDI series, Rotax 914 DCDI series

These engines types are already pre-configured in EngiBOX, so you just need to choose your model in the initialization procedure. The engine initialization procedure is necessary to pair EngiBOX to the connected engine
model.

EngiBOX has several sensor input ports, which can be occupied variably according to the connected
engine type.

Support

WARRANTY

AvMap navigators are guaranteed for 2 years after  the purchase date.

 


How to get Customer Support
for your AvMap device:


1.   Register your Navigator

2.   Read the FAQsection

3.   If you do not find the answer to your problem, then write us filling the online Assistance form or contact the CALL CENTER +39 0585 784044

4.   The Customer Support will reply providing you instructions.

5.   If the problem cannot be solved over the phone or email, you will receive via email a repair code  ‘RMA’ with all the instructions to send us your navigator for repair.