EMSIS – User’s and Installation Manual
Please make sure that SD card is formatted as
FAT 32 file system.
Other file systems will not be recognised
by EMSIS.
2.3.2 Copying New Software into EMSIS
To copy the software from the SD card into EMSIS follow these steps:
1. Insert SD card with the new software (Update.kus) into EMSIS SD card slot with contacts facing
up.
2. Push and hold the down
2
button and turn EMSIS ON. A window similar to Figure 2 appears.
Figure 2: Boot options window.
3. Use the
up
and
down
button to select the
Update
option and press the
check
button. Update
process will begin.
4. Once finished, EMSIS will start with the new software. The very first start after the update takes
slightly longer.
The
start normally
option is used if you changed your mind and you do not want to update the instrument,
while the
system reset
option is used only in emergency and should never be used in normal operation.
This option asks for special password in order to protect it from accidental use.
3 General Information about EMSIS PFD
EMSIS PFD consists of electronic units which work closely together to bring flight information onto
graphical display. The system consists of the following electronic components:
Airu (AD-AHRS and GPS unit) – hereinafter referred to as AHRS unit – is an inertial navigation
unit aided by the GPS and pressure sensors. AHRS provides attitude, position and velocities.
AHRS unit is hidden inside EMSIS PFD unit.
EMSIS unit – presents all relevant information that appears on the CAN bus in a pilot friendly
form on LCD screen. Most of this manual describes how to access, read and interact with the
EMSIS display.
EMSIS PFD unit uses state of the art MEMS
3
sensors to read various physical quantities. Since all sensors
are solid state, it has no moving parts. This means it has fewer problems with fatigue and ageing. The
following MEMS sensors are used in the EMSIS PFD system:
The angular rate sensors, also known as gyros, are used in the attitude calculation. The angular
rates are integrated in time in order to predict new attitude from the old one. We could say that
they give short-time attitude prediction. They are also used in gravity vector calculation.
2 In the case of EMSIS 3.5”, you need to push and hold the up arrow.
3 MEMS - micro-electromechanical systems, a.k.a micro machines, a.k.a micro systems technology.
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