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CHT-100 Cylinder Head Temperature Indicator 

Page 4 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 

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

 

 
Thermocouple signal cables are red/white twisted pairs. The colors listed refer to 
the tag color on the wire pair. Green and yellow tags are only on 6 cylinder 
instruments. 
 

BLACK

  

Cylinder 1 

 

 

BLUE

  

Cylinder 4 

RED

 

 Cylinder 

  

GREEN

 Cylinder 

WHITE

 

 Cylinder 

  

YELLOW

 Cylinder 

 
If you have 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 provided as there 
is no way of determining what type of probes will be used. In this case the 
installer is to provide the necessary connectors. 
 
For installation of the complete kit, simply snap the connectors together for the 
appropriate cylinders, slide the included heat shrink sleeves over the connection 
and shrink to size.  Take care in matching the correct color coded signal pair to 
the correct cylinder. 
 

Summary of Contents for CHT-100

Page 1: ...0 Cylinder Head 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 ins...

Page 2: ...o 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 do...

Page 3: ...sure 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...

Page 4: ...r 4 RED Cylinder 2 GREEN Cylinder 5 WHITE Cylinder 3 YELLOW Cylinder 6 If you have purchased a complete instrument and probe kit appropriate connectors for interconnection of the signal wires and prob...

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 CHT 100 Operati...

Page 6: ...n 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 specifi...

Page 7: ...tch 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...

Page 8: ...isplay 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 Disp...

Page 9: ...his mode of operation is the single most important feature of this instrument and should be used for all leaning and cooling function If the instrument is switched from the automatic mode back to the...

Page 10: ...mocouple 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 is not possib...

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

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