J P Instruments

What are the Features of EGT Probe & How It Works?

Press release   •   Jul 28, 2017 02:19 EDT

EGT Probe According to research and study done about sensors or probes, there has been a conclusion that an Engine monitor is just as good as its own probe. This is the reason why various different electronic companies are daily adapting to trends and taking probe manufacturing very serious. An Exhaust Gas Temperature (EGT) probe is a temperature detector that is mounted on exhaust or turbine that relies on thermocouples and therefore it does not require electricity for it to work.

A thermocouple is a temperature sensor that is made up of 2 different types of wires that are joined at some point that measures the temperature temperatures in Celsius or Fahrenheit.

Outstanding Features of an EGT Probe

The following are some of the characteristics of a genuine Exhaust Gas Temperature:

• It has a voltage display – an EGT which is single channeled can measure battery voltages of at most 30V which is designed with a programmable alarm that senses high or low voltages, failure in drive belts or faulty batteries.
• Has a settable high alarm
• Time display meter – this determines the actual time of ignition
• It has a service-interval reminder which is inbuilt
• It contains both an audible and a LED visual alarm – the audible one can be turned on or off when viewing something while the visual one grows red at an occurrence of an alarm condition
• External alarm output that’s for remote indicators
• Have LCD that have graphics that are sunlight readable
• It has a high voltage protection for harsh environments vehicles and also has voltage reversal

Basic Layout of an EGT

When you see an EGT you will see the following:

• An Audible alarm
• LED alarm
• A harness – it connects power, thermocouple and external alarm
• Down button – adjust the contrast
• Menu button – enables you to access the menu system
• Up button – increases the contrast to maximum
• An LCD that displays the graphics

How Does an EGT Really Work?

The thermocouple is the heart of EGT. When the temperature increases at its junction, the metals that meet expand producing electrical pulses. Basically, the level of voltage being generated by these pulses is dependent on the type of metal of thermocouple and the amount of heat.

The sensor is usually connected to a Fuel Gauges that registers the level of temperature that is generated during the throttle or normal functioning of the engine. If there is damage the red Led light will glow. Just know the lower the ETG the more efficient is your engine.

In conclusion, an EGT Probe is one of the most important sensors that can warn you as a driver in situations that can damage your engine and will actually guide you on the level of fuel to use. However, it is advisable that you don’t use excess EGT which can destroy your engine.

J.P.Instruments was founded in 1986 in Huntington Beach, California, USA. J.P. Instruments is leader in aircraft engine data management systems and has added a whole line of reliable and cost effective aircraft instrumentation to its name.