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EGT Exhaust Gas Temperature Technical Notes

In this section you can find answers to most common problems and technical information about:
  • Exhaust Gas Temperature sensors
  • Installation information
  • Performance tuning,
  • How to position your egt probes in gas and diesel engines.
Plus much more!

EGT Probe Performance tuning Installation and Information

Exhaust Gas Temperature (EGT) Sensors for Tuning Internal Combustion Engines,
Installation Information Exhaust Gas Temperature (EGT) Probe placement in the exhaust path requires special attention. If it is closer than 1½ inches to the cylinder head, probe life will be limited, too far away the probe will be less responsive.

Thermocouple Wire Color Reference Chart Type K, J and N USA and International IEC 584-3

Thermocouple Lead Wire Color Reference Chart Type K, J and N for USA and International IEC 584-3. Click on the title to go to the chart.

EGT Diesel Engine Installation Information

Diesel Engine Installation Information
Probe Locations
The installation position of an EGT probe is important and requires planning in your diesel engine application.
Installation locations in turbo and non-turbo engines are different for EGT probes and require consideration.

EGT Probe & CHT Sensor Thermocouple Compatibility List

Our Exhaust Gas Temperature probes are compatible with almost all brands and manufacturers. We have compiled a partial list below of some of the  manufacturers electronics that are compatible with our probes. If you do not see your gauge listed below it does not mean that our probe will not work with your gauge. You can contact us at sales@thesensorconnection.com Phone 248-636-1515 and we will try to help you

Why Use our Probes?

The Sensor Connection offers thermocouple pyrometer sensors of the highest quality having superior reliability and life in extreme environments. Please take a moment and review the anatomy of our sensors.

ITS-90 Table for type J thermocouple

For Type J thermocouples, the output voltage increases almost linearly to the temperature difference over a bounded range of temperatures. For precise measurements, non-linearity must be corrected. The nonlinear relationship between the temperature difference and the output voltage (mV) of a thermocouple can be corrected using the table below.

What is a Thermocouple?

Thermocouples are the most common sensor used for exhaust gas temperature measuring. Consisting of a pair of dissimilar metal wires joined at one end, producing a net thermoelectric voltage when measured between the open pair.

ITS-90 Table for type K thermocouple

For Type K thermocouples, the output voltage increases almost linearly to the temperature difference over a bounded range of temperatures. For precise measurements, non-linearity must be corrected.