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by A&A Tech

Display type EEM AM4 01 AR02

Display type EEM AM4 01 AR02

This instrument presents flight and engine parameters.

The instruments include four displays. They presents parameters:

  1. Display A (upper left):
    • Air speed of the aircraft;
  2. Display B (upper right):
    • Altitude;
    • Vertical speed;
    • Reference  pressure;
  3. Display C (bottom left):
    • Inlet air pressure;
    • Inlet air temperature;
    • Oli pressure;
    • Oil temperature;
  4. Display D (bottom right):
    • Engine speed;
    • Cylinder head temperatur;
    • Exhaust gas temperatur;
    • Engine running time;
    • Hobbs (total engine running time);
    • Voltage;
    • Number of recorded threshold crossings.

Lp. 

Parameter 

Symbol/ name  

in display 

Unit 

Range of bar graph indicator 

Warning/alarm thresholds 

Warning  

Alarm  

Air speed of the aircraft 

AIR SPEED 

km/h 

 

 200 km/h 

under 

60 km/h 

 

from 160 to 

180 km/h 

above 180 km/h 

Altitude 

ALT 

m, ft 

--- 

--- 

--- 

Wariometr 

Vertical speed 

m/s, ft/min 

± 8 m/s 

--- 

--- 

Reference pressure 

--- 

hPa, 

mmHg, inHg 

---- 

--- 

--- 

Engine speed 

ENGINE 

RPM 

0 – 6000 rpm 

from 1400 

to 1600 

rpm# 

 

from 5500 

under 

1400 rpm

 

above 5800 rpm 

 

 

 

 

 

to 5800 

rpm 

 

Cylinder head temperature 

CHT 

°C 

0 – 120°C 

from 100 

to 110°C 

above 110°C 

Exhaust gas temperature 

EGT 

°C 

0 – 900°C 

under 

500°C # 

 

from 850 to 900°C 

above 900°C 

Voltage in electric power 

instalation 

--- 

---- 

from 11 

to 12V 

 

from 14 to 15V 

under 11V 

 

above 15V 

Flight time 

FT 

H:min 

---- 

------- 

-------- 

10 

Total engine running time 

HOOBS 

H:min 

---- 

------- 

-------- 

11 

Number of recorded 

threshold crossings 

--- 

---- 

----- 

----- 

12 

Inlet air pressure 

MAP 

inHg 

28 – 50 inHg 

from 43 to 46 inHg 

above 

46 inHg 

13 

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 

14 

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 

15 

Oil 

temperature 

OIL T 

°C 

0 – 140 °C 

from 50 

to 60°C 

 

from 110 to 130°C 

under 

50°C 

 

above 

130°C 

The casing is made of anodised aluminium. The LCD display is protected by high quality acrylic cover with anti-glare coating. This makes the device durable and easy to maintain.

The readings are displayed in both digital and graphical form. For immediate recognition of the status, colour codes are used. If the air speed stays within the desired range, the instrument displays values in green. If the warning threshold is crossed, the instrument informs the pilot by changing the colour of graphs and digits to orange. If alarm levels are reached, the digits and graph bars turn red. The threshold values (both upper and lower) are to be defined by the buyer at placing an order.

 

ParameterValue
Dimensions (height x width x depth)175 x 183 x 67 mm
Display diameter156 x 164 mm
Mass345 g
Power supply12 V (< 340mA)

 

For details see the manual.