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EGT-100 Exhaust Gas Temperature Indicator 

Page 2 of 11

 

 

Aerospace Logic Inc. 

3150 Ridgeway Drive, Unit #43, Mississauga, Ontario, L5L 5R5, CANADA 

Tel. (905) 569-3887 | Fax. (416) 352-5854 | Email. sales@aerospacelogic.com 

www.aerospacelogic.com 

EGT-100 Operations & Installation Manual – Ver. 1.9 – June 5, 2003 

 

 

1. Introduction

 

 
Your EGT-100 Exhaust Gas Temperature Indicator will provide you with years of 
reliable service and generally outlast the life of your aircraft. The instrument is 
constructed from the highest quality components and has a design life in excess 
of 100,000 hours.  
 
It is the most reliable instrument of its kind. Gone are the days of questioning the 
accuracy or operation of the instrument. No stuck needles, erroneous readings or 
instruments that keep you guessing as to their operational status. 
 
Every reading you will see displayed on your instrument has been validated at 
least 256 times before you see it. This all happens in less than a second. When 
you see the result you know the instrument is functioning correctly as it is 
monitored by an independent microprocessor just to ensure that it is functioning 
correctly. In turn the main processor validates the independent monitoring 
processor. Any failure detected in either processor and your instrument display 
will be shut down or an error message displayed – depending on the failure 
status. 
 
 

2. Display

 

 
The main display of the instrument displays a graphical representation of the 
temperature of the selected cylinder on the bar display, provided the temperature 
is within the defined limits set by the user. The lower four-digit seven-segment 
display provides a mathematically computed display of the specific temperature.  
 
The 

A M S

 switch allows you to select the various functions of the instrument. 

When the switch is placed in the 

A

 position the instrument is placed in the 

AUTOMATIC

 mode. In this mode it will select and display the information for the 

hottest cylinder.   
 
When in the 

M

 position the instrument allows 

MANUAL

 selection of the function 

of choice. Available functions are: 

STEP, 1, 2, 3, 4, 5, 6

, (5 and 6 only available 

on 6 cylinder models) where the numbers correspond to the cylinder number to 
be monitored. In the 

STEP

 mode the instrument will sequentially step through all 

cylinders. 
  
Moving the 

A M S

 switch momentarily to the 

S

 position will allow movement 

between the manually selectable pages.  

Summary of Contents for EGT-100 Series

Page 1: ...0 Exhaust Gas Temperature Indicator This instrument is a complex precision instrument manufactured to exceed Airborne Equipment Standards DO 160D DO 178B and TSO C43c standards In order for your instr...

Page 2: ...ensure that it is functioning correctly In turn the main processor validates the independent monitoring processor Any failure detected in either processor and your instrument display will be shut down...

Page 3: ...ure proper operation The instrument has been software calibrated and never needs recalibration provided no wiring modifications are made at installation time Now connect the supply and dimmer wiring T...

Page 4: ...e purchased a complete instrument and probe kit appropriate connectors for interconnection of the signal wires and probe leads are provided If you have purchased only the instrument NO connectors are...

Page 5: ...Page 5 of 11 Aerospace Logic Inc 3150 Ridgeway Drive Unit 43 Mississauga Ontario L5L 5R5 CANADA Tel 905 569 3887 Fax 416 352 5854 Email sales aerospacelogic com www aerospacelogic com EGT 100 Operatio...

Page 6: ...the setup mode the display bar will remain blank The CYL digit and the four digit display shows the parameter value and type as per the enclosed instructions In order to set the manufacturer specified...

Page 7: ...ch once to the S position and release The low limit will now be saved and applied to all cylinders The display will move to the next parameter H High Temperature Limit Set The high temperature limit s...

Page 8: ...splay the STEP message for approximately five seconds before starting the step process Once started it will step through all cylinders When the last is reached it will revert back to the first 1 Displ...

Page 9: ...nt and should be used during leaning and normal operations Leaning in the automatic mode ensures that no cylinder is overheated during the process If the instrument is switched from the automatic mode...

Page 10: ...Section Thermocouple Signal Wire Junction Where possible plan the installation such that the junction between the thermocouple and signal wire takes place on the cockpit side of the firewall If this i...

Page 11: ...for thermocouple sensor linearity Minimum 256 times measurement validation before display Operating Temperature 15 C to 55 C 5 F to 131 F Power Consumption 370mA Max daytime operation 50mA Min nightt...

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