Thermocouple Amplifier

[fullthrottle]

Anyone had experience with after market thermocouple amplifiers?

I have an EGT gauge and am thinking of integrating the K-type probe into my Haltech UC10 dash.
However to do this, the K-type probe needs to be run through a thermocouple amplifier to bring the output volts up high enough so the dash can read it.

The K probe produces milli-volts at small increments as the temperature increases. The amplifier takes the milli-volt output and amplifies it so an external device can read it. Normally a range of 0-5volts.

Haltech make an amplifier, but it's bloody expensive and a minimum of 4 channels. I only need one.

 

[AirheadNut]

I’m no electrical engineer but it seems like any basic op-amp setup should be able to handle that. It would be overkill but you could probably get an Arduino to do that job pretty easily.

Edit: for the price this seems like it would be worth trying: AD8495 Analog Output K-Type Thermocouple Amplifier - https://learn.adafruit.com/ad8495-thermocouple-amplifier/overview

 

[fullthrottle]

Yeah, that's the only one I've been able to find. It only has a range of up to +750 degrees C when the input supply voltage is +5volts and cannot determine from all the data sheets what the increase in input voltage would have to be to shift the range further up the scale.

I've asked the question on their forum.

Cheers