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CHT-100 Cylinder Head Temperature Indicator 

Page 9 of 11

 

 

Aerospace Logic Inc. 

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

Tel. (905) 569-3887 | Fax. (416) 352-5854 | Email. [email protected] 

www.aerospacelogic.com 

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

 

If the instrument is left in the intensity mode without any changes for more 
than eight seconds it will revert to the last selection. We recommend the use 
of the internal intensity control for the most accurate control of the brightness 
of the instrument. 
 
 

AUTOMATIC MODE

 

 
Moving the 

A M S

 switch to the 

A

 position will place the instrument in the 

automatic mode.  
 
In this mode it will select and display the temperature for the hottest cylinder. 
All cylinders are scanned in less than one second and the display updated at 
the same rate.  
 

This 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 manual 
mode it will revert to the last selected manual function. 
 
For complete CHT use instructions and limits refer to your engine 
manufacturers recommended procedures.  
 

DISPLAY

 

 
The bar display will display a graphic representation of the selected cylinder 
temperature between the defined low and high limits. Each bar represents 
1/10 of the temperature range between the low and high limits. 
 
For temperatures in excess of the high limit the two upper bars (red bars) will 
blink. Once the temperature cools and is within the limits the blinking will 
cease. The over temperature blinking does not occur in the STEP mode.  
 
Temperatures below the low limit will only be displayed on the four digit 
display. 
 
If the temperature is below 100ºF the display will read 

COLd

. As soon as the 

temperature exceeds this limit it will be displayed. 
 
 
 
 
 
 
 
 
 

 

Содержание CHT-100

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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