In the end we are deciding to include a thermowell as part of our enclosure when we go to have it tested and certified, thereby certifying a thermowell ourselves.
It will not add to the cost of our certification, however it will be a one time "field certification", and if we need to do this...
The issue I am having is that I am trying to measure the temperature inside a certified flameproof enclosure, which requires that any entry to that enclosure must also be certified as a flameproof component.
I had previously looked at mounting all of the components inside the flameproof...
I work for a company that manufactures explosion proof electrical equipment and enclosures, and have recently been asked to include a temperature sensor with transmitter to measure the temperature inside the enclosure, with the transmitter mounted outside the enclosure (in an IP66 head)...
I am trying to evaluate the use of Red Brass (UNS C23000) as a conductive material in a gas plant atmosphere that is 70% H2, 14% CH4, 5% C2H6, 3%C3H8, and has <50ppm of H2S.
I have found lots of information on mechanical stresses and corrosion and stressing/fracturing of the brass due to this...