Thank you for posting. Would you mind doing an example detailed accuracy calculation example for the most common transmitters? Or point me that way? I often need to explain this to other engineers, and i think you'll do it better than me. Thank you, and Happy New Year!
There is a lot of good information in this presentation. But the statement on the image at 11:23 that says a thermocouple resistance should be less than 1 ohm is just not factual as a general statement. Thermocouple resistance depends on wire size, wire length, and wire materials. I routinely use thermocouples that are more than 100 ohms.
Yes that could have been worded better. You are correct that the resistance can vary greatly depending on wire size and length. Most of what we manufacture will measure around an ohm because they are large gauge wires and/or not very long.
@@rtdology627 I read an article written by a fellow from Fluke a few years ago and he said if it is less than 1 ohm it is a thermocouple. I made 650 thermocouples to measure temperature of people's teeth. They were 6' long, type T, 40 AWG, resistance measured on each one ranged from 200 to 206 ohms.
Thank you for posting. Would you mind doing an example detailed accuracy calculation example for the most common transmitters? Or point me that way? I often need to explain this to other engineers, and i think you'll do it better than me. Thank you, and Happy New Year!
There is a lot of good information in this presentation. But the statement on the image at 11:23 that says a thermocouple resistance should be less than 1 ohm is just not factual as a general statement. Thermocouple resistance depends on wire size, wire length, and wire materials. I routinely use thermocouples that are more than 100 ohms.
Yes that could have been worded better. You are correct that the resistance can vary greatly depending on wire size and length. Most of what we manufacture will measure around an ohm because they are large gauge wires and/or not very long.
@@rtdology627 I read an article written by a fellow from Fluke a few years ago and he said if it is less than 1 ohm it is a thermocouple. I made 650 thermocouples to measure temperature of people's teeth. They were 6' long, type T, 40 AWG, resistance measured on each one ranged from 200 to 206 ohms.