Hello
I have a burning oven that I need to measure the temp inside. Its located about 8-10 metters away from my arduino mega.
I need a sensor that is able to measure temperatures up to 500 º C with an error of 1 º.
The sensor is not in contact with fire, its inside a metal probe filled with motor oil.
I already tried an thermocouple with the max6675 but it didnt work. The max 6675 works with the SPI interface and this is not design to work with sunch long distances of cable.
So can you please sugest an alternative for this conditions ?
I would apreciate it.
A type K thermocouple is the most common temperature sensor for temps that high. But I think wanting +/- 1 C accuracy is a stretch for any thermocouples. There are a few RTD sensors rated for around that max temperature available and they are more accurate then thermocouples but are more expensive. When looking for sensors with this high a temperature in mind one must look beyond just the basic sensors range but also the insulation material used be able to withstand the temperature.