In the frozen tundra like climate that we are having up here in Minnesota (AGAIN!), Burns Engineering has created a multi-point PRT to monitor the frost line. Click here to see the application note on the product.
Today as the temperature dips into the -20C range, this sensor at 10 feet in length may not be long enough?!? We could build a longer PRT, but is that necessary?
In Minnesota, according to the local library, the Frost line is generally in the 4 to 5 feet range, so 10 feet should be good. Although a quick review of the climate extremes in MN and for the entire US indicates there are places that have been as cold as -80F! (~~-62C!)
Brrrrrr… It’s not cryogenic, but it’s feels like it!
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Maybe we’ll start drawing up the design for a 20-foot Multi-point PRT!
How cold has it been in your neck of the woods?
Chuck
Posted on January 30th, 2008 at 10:23 am:
Too cold for comfort. This very morning we had an inquiry on a 37′ multi-point!