A&A Tech EEM AM4 FE H01 Installation instructions

Operators and Maintenance Manual
Display EEM AM4 FE H01
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Auto & Aero Technologies Sp. z o.o.
Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
Operators and Maintenance Manual
Display
EEM AM4 FE H01
Rev. 01 –March 2020

Operators and Maintenance Manual
Display EEM AM4 FE H01
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Copyright:
Auto & Aero Technologies Sp. z o.o.
Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
Table of Contents
Introduction ..................................................................................................3
1. General information..............................................................................4
2. Handling in transport and storage ........................................................4
3. Installation.............................................................................................5
3.1. Environmental specifications.......................................................5
3.2. Dimensions ..................................................................................5
3.3. Mounting .....................................................................................6
3.4. Power and wiring.........................................................................7
4. Operation and maintenance .................................................................9
5. Service, diagnostics and repairs ..........................................................14
5.1. Service life..................................................................................14
5.2. Checks........................................................................................15
5.3. Cleaning and conservation.........................................................15
5.4. Troubleshooting.........................................................................15
5.5. Repairs .......................................................................................16
5.6. Re-programming........................................................................16
5.7. Spare parts.................................................................................17
6. Warranty .............................................................................................17

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Auto & Aero Technologies Sp. z o.o.
Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
Introduction
This instrument is intended for ultralight, microlight, homebuilt and
experimental aircraft. The purpose of EEM AM4 type display is to present
key engine status information to the pilot. Version FE H01 displays engine
data (inlet air pressure and temperature, oil pressure and temperature,
engine and rotor speed, cylinder head temperature, exhaust gases
temperature, voltage, flight time, hobbs and number of recorded threshold
crossings).
The device is equipped with four an in-built colour displays protected by
anti-reflective coated glass. Four encoders knob & push-button are located
in the front provides user interaction with the device. The electric
connectors, hardware and software identification plates are located in the
back of the casing (Fig. 1)
Fig. 1. EEM AM4 Display
This instrument is not certified by the FAA and EASA. Fitting of this
instrument to certified aircraft is subject to the rules and conditions
pertaining to such in your country. Please check with your local aviation
authorities if in doubt.

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Auto & Aero Technologies Sp. z o.o.
Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
1. General information
This manual contains binding information, guidelines and warnings for safe
handling and maintenance of this particular instrument before installation,
during installation and in its operating phase. This document does not
contain rules and guidelines on operation of aircraft instruments at large.
Read the manual thoroughly before turning on the instrument and
precisely follow the instructions to install and configure it. This manual
does not replace instructions on installation, maintenance and operation
of this device in a particular airframe - these are to be prepared by the
user. Instructing the pilots and maintenance personnel on operation of the
instrument is also the responsibility of the user.
Operation of this instrument is the sole responsibility of the pilot in
command (PIC) of the aircraft. This person must be proficient and carry
a 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.
This manual defines the scope of maintenance measures the user is
authorised to conduct on their own. Any repairs or modifications outside
this scope conducted by the user or contracted to a third party, as well as
using non-original parts and subassemblies voids the warranty, relieves the
supplier from any liability, making the instrument lose the status of the
product of Auto & Aero Technologies Sp. z o.o. with all the resulting
consequences.
2. Handling in transport and storage
1. The EEM AM4 monitor is bubble-wrapped to protect it against
vibration and other physical damage, and packed in a cardboard
box together with the warranty card.
2. The display must be stored and transported assuring that:

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Auto & Aero Technologies Sp. z o.o.
Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
othe ambient temperature stays in the range of 10 40°C
othe ambient relative humidity stays in the range of 1090 %,
safe from condensation.
3. The display should be protected from water.
3. Installation
3.1. Environmental specifications
The EEM AM4 display has been designed to be installed in non-hermetic
cockpits of ultralight aircrafts of ceiling not exceeding 3 000 m (10 000 ft).
Acceptable range of operating parameters is listed below:
•Operating temperature: -20 oC 50 oC
•Short-term operating temperature: -25 oC 60 oC
•Humidity: 0 95 %, no condensation;
•Ambient air pressure: 45 105 kPa;
•Vibrations: <5 g at frequencies below 150 Hz;
3.2. Dimensions
Outline dimensions of the display are: 175 x 183 x 67 mm (width x height x
depth), Weight: 345 g.

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Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
Fig. 2. EEM AM4 Display outline drawing
3.3. Mounting
The display should be located conveniently within the pilot’s view in the
control panel in the cockpit. The dimensions of the mounting hole to be
cut in the panel is 156 x 164 mm. It is recommended that the display is
installed from the front side the control panel. The display is to be fastened
to the panel by means of four M3 screws that are located symmetrically to
the centre of the mounting hole in the spacing of width: 165 mm and 2 x
67.5 mm height (Fig. 3).

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■email: inf[email protected] ■www.aatech.pl
Fig. 3. Mounting hole and screw holes measurements (not to scale)
3.4. Power and wiring
The EEM AM4 display is powered from the aircraft power system. Power
specifications: nominal supply voltage 12V, acceptable supply voltage
range 8 ÷30V, current < 340mA.
The EEM MOT 01 display is connected to the system by four in-built
MOLEX Ultra-Fit 3.5 mm 6 pin male connector located at the back of the
instrument. A schematic diagram of the connection is shown in Figure 4
and in Table 1. Connectors A and B should be connected to measurement
module AUX AVS 2 by RS 0 line. Connectors C and D should be connected
to measurement module EMS DAQ R02 by RS 0 line.
The power supply (pins no. 5 and 6) requires 0.5 mm2wires.

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Data bus (pins no. 3 and 4) requires twisted pair wires (2 x 0.5mm2)
according to DIN VDE 0814 (Fig. 4). Twisting should continue to the pins of
the connector.
Pins 1 and 2 are to be left unconnected.
Tab. 1. Connector pin assingment and pin insertion view
Pin
number
Function
Connector schematic
1
Reserved (do not connect)
2
Reserved (do not connect)
3
Connector A and B: RS 0 A
Connector C and D: RS 1 A
4
Connector A and B: RS 0 B
Connector C and D: RS 1 B
5
GND
6
+12 V
Fig. 4. Wire twisting and connection

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■email: inf[email protected] ■www.aatech.pl
4. Operation and maintenance
The display is to be connected to measurement module EMS DAQ R2.
The front panel of EEM AM4 is composed of four displays group each with
three elements: the display, two status diodes (alert indication), and the
encoder knob & push-button for setting parameters (Fig. 5). For displays A
and B status diodes are placed under the displays. For displays C and D
status diodes are placed above the displays.
Rys. 5. Front panel of EEM AM4 Display

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Auto & Aero Technologies Sp. z o.o.
Mazowiecka 10/5, 20-723 Lublin, Poland
■email: inf[email protected] ■www.aatech.pl
The EEM AM4 display displays values of flight and engine parameters that
are either directly measured or calculated by the system. The display starts
automatically as the power is turned on.
As shown in Figure 6, the monitors with 01 AR02 software version
presents:
1. Display A (upper left):
a. Engine speed –in the left side of the display;
b. Rotor speed –in the right side of the display;
2. Display B (upper right):
a. Inlet air pressure –in the upper left quarter of the
display;
b. Inlet air temperature –in the bottom left quarter of the
display;
c. Oil pressure –in the upper right quarter of the display;
d. Oil temperature –in the bottom right quarter of the
display;
3. Display C (bottom left):
a. Cylinder head temperature –in the middle of the display;
its right bar graph shows the temperature of the right
side of the cylinder head, and the left bar graph –the
temperature on the left of cylinder head;
b. Exhaust gas temperature –in the bottom of the display;
its right bar graph shows the temperature measured of
the right side of the engine, and the left bar graph –the
temperature on the left.
4. Display D (bottom right):
a. Hobbs (total engine running time) - digits in the bottom
right of the display;
b. Voltage –the upper left of the display;
c. Number of recorded threshold crossings –the upper
centre of the display (e00);
d. Flight time (measured from the last start of the engine) –
digits in the bottom left of the display;

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A
B
C
D
Fig. 6. Display of the FE H01 software version
On client’s request, warning and alarm threshold values may be set for
some of the above parameters according to the specification provided by
the aircraft supplier. Default threshold values are listed in Table 2.
As the aircraft operates within “normal” range of the parameter in
question, the instrument displays values in green, and status diodes are
green. If the threshold level is being exceeded, the instrument informs the
pilot by changing both the colour of displayed figures and the colour of
status diodes. Exceeding the alarm threshold is additionally indicated by
the diodes flashing red. The pilot can switch off flashing by pushing the
encoder knob. Figure 7 presents the idea of colour codes and
warning/alarm indication.
Thus, information on the status of a flight parameter is presented in two
ways:

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1) by means of the colour of two status diodes according to the
following colour code:
a) green –engine parameters within normal range;
b) orange –warning;
c) red –alarm;
2) by means of the colour of digits and bar graph (if applicable)
presenting the value of the parameter:
a. green –engine parameters within normal range;
b. orange –warning;
c. red –alarm;
Tab. 2. Parameters displayed by EEM AM4 FE H01 display
Lp.
Parameter
Symbol/
name
in display
Unit
Range of
bar graph
indicator
Warning/alarm thresholds
Warning
Alarm
1
Engine speed
ENGINE
RPM
0 –6000
rpm
from 1400
to 1600
rpm#
from 5500
to 5800
rpm
under
1400 rpm#
above 5800
rpm
2
Rotor speed
ROTOR
SPEED
RPM
0 –600
rpm
from 150
to 200 rpm
from 400
to 450 rpm
under
150 rpm
above 450
rpm
3
Cylinder head
temperature
CHT
°C
0 –120°C
from 100
to 110°C
above
110°C
4
Exhaust gas
temperature
EGT
°C
0 –900°C
under
500°C#
from 850
to 900°C
above
900°C
5
Voltage in
electric
power
instalation
---
V
----
from 11
to 12V
from 14
to 15V
under 11V
above 15V

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6
Flight time
FT
H:min
----
-------
--------
7
Total engine
running time
HOOBS
H:min
----
-------
--------
8
Number of
recorded
threshold
crossings
E
---
----
-----
-----
9
Inlet air
pressure
MAP
inHg
28 –50
inHg
from 43
to 46 inHg
above
46 inHg
10
Inlet air
temperature
MAT
°C, F
from -5 to
70°C
from 0
to 5°C
from 50
to 60°C
under
0°C
above 60°C
11
Oil pressure
OIL p
Bar
0 –7,5 bar
from 1,0
to 2,5 bar#
from 5,0
to 7,0 bar
under
1,0 bar#
above
7 bar
12
Oil
temperature
OIL T
°C
0 –140 °C
from 50
to 60°C
from 110
to 130°C
under
50°C
above
130°C
Alarms marked with the hash symbol # are activated if the engine speed is above 800 RPM.
The status information is obtained as a result of analysis conducted by the
instrument on the basis of digital input transmitted by the measurement
modules of the system.
Both diodes are always of the same colour corresponding to the status of
the parameter that assumes “the worst” value.

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Fig. 7. The idea of flight parameter status information
5. Service, diagnostics and repairs
5.1. Service life
a) TBO of the display is not defined.

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b) In the case of failure or error, the display must not be used any
more.
5.2. Checks
The following checks are recommended:
1) At pre-flight check:
a. Turn on the power to check if operational;
2) After 100 hours of flight:
a. Check the instrument’s electric connections;
b. Turn on the power on to check if operational.
5.3. Cleaning and conservation
The screen is to be buffed with water-damped soft cloth. Optionally, if very
dirty, can be cleaned with cloth sparingly damped with mild soap solution
or with a liquid dedicated for liquid crystal displays. Caution: the surface is
vulnerable to scratching.
5.4. Troubleshooting
a) If the screen stays blank when power is applied, turn off power
supply and verify power connection. Ensure that your power
supply is capable of supplying at least 8 volts, and no more than
30 V.
b) If no information is displayed when power is applied (Fig. 8), check
connection to measurement modules.

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Fig. 8. Indication of no connection to measurement modules
c) In the case of the instrument’s failure or malfunction, turn power
off and on again.
d) If the above does not solve the problem, the display needs to be
replaced.
e) A defective instrument must not be used.
5.5. Repairs
Repairs and inspections of the instrument can be conducted only by its
manufacturer.
The display does not contain any user-serviceable parts. Unauthorized
repairs or modifications may result in permanent damage to the
equipment and void the warranty.
If the monitor fails, return the device to the Manufacturer with description
of the failure circumstances and symptoms.
5.6. Re-programming
Modifications to the instrument’s settings that are not possible to be
conducted by means of the encoder can be introduced by means of service
software provided by the Manufacturer and the dedicated diagnostic
interface.
The instrument’s firmware updates are to be conducted on the basis of the
bulletins published by the Manufacturer. The updates can be introduced

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by means of service software provided by the Manufacturer and the
dedicated diagnostic interface.
5.7. Spare parts
The instrument does not contain any user-serviceable parts. The user is not
allowed to disassemble it nor replace any subassemblies.
6. Warranty
1. Auto & Aero Technologies Sp. z o.o. warrants this product to be free
from defects in materials and workmanship.
2. Auto & Aero Technologies Sp. z o.o. warrants proper operation of the
product if it is used in accordance with its intended purpose and in
accordance with the Operators and Maintenance Manual.
3. Auto & Aero Technologies Sp. z o.o. warrants this product for 12
months from date of purchase.
4. Auto & Aero Technologies Sp. z o.o. 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 or
labour. The customer is, however, responsible for any transportation
cost. The repair or replacement will be completed within 30 days from
delivery of the product to Auto & Aero Technologies Sp. z o.o.
However, if the failure is possible to be eliminated by means of
updating the product’s firmware, and if Auto & Aero Technologies Sp.
z o.o. provides the customer with appropriate service tools, the
Customer will conduct firmware update by themselves.
5. Any warranty repair will extend the warranty for the time of the
repair.
6. If a valid warranty claim is lodged within months 7 to 12 after date of
purchase, the warranty extends for a further 6 months after
completion of the warranty repair.
7. This warranty does not cover failures due to:

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a) mechanical damages and damages resulting from them,
b) unauthorised repairs,
c) damage caused by abuse or misuse,
d) unauthorised alterations to hardware or software.
8. The warranty does not cover claims that arise from the product
parameters unless they are different from values declared by Auto &
Aero Technologies Sp. z o.o.
9. The warranty does not cover activities that belong to normal
operation such as cleaning and conservation, operation checks, and
periodic inspections according to the Operators and Maintenance
Manual.
10. The Customer loses all rights arising from the warranty if the product’s
protective seals are found to be tampered with.
11. The rejection of Auto & Aero Technologies Sp. z o.o. to conduct
a warranty repair voids the warranty.

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The information in this document is subject to change without notice and should
not be construed as commitment by Auto & Aero Technologies Sp. z o.o.
These technical data and the information embodied therein are the property of
Auto & Aero Technologies Sp. z o.o., and shall not, without prior written permission
of Auto & Aero Technologies Sp. z o.o., be disclosed in whole or in part to third
parties. This statement shall be included on any reproduction of these data, in
whole or in part. The Manual must remain with the engine/aircraft in case of sale.
Copyright 2020 © - all rights reserved.
Other product names in this documentation are used purely for ease of
identification and may be trademarks of the respective company or owner.
Approval of translation has been done to best knowledge and judgement - in any
case the original text in English language is authoritative.