It is common to control the speed of a pump based on a sensor reading. But what if you want the pump speed to change at a different rate at different parts of the sensor range? If the response isn’t approximated by an equation, you can break down the response in to segments and use a new equation for each segment. That is exactly what is done here.
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I am on a quest to convince people, especially controls and automation people, to stop crimping RJ-45 ends on Ethernet cables. Everyone else in the world terminates Ethernet to a punchdown block jack and then uses a pre-tested, pre-molded patch cable to connect to the device. The reason to avoid crimping on the RJ-45’s is that it is difficult to reliably crimp the ends on correctly, especially if you have to use an electrician who would rather be bending 3″ rigid conduit and is trying to use the Mickey Mouse crimp tool he bought at the dollar store.
The grandson thought about it for a minute and then asked his grandfather, “Which wolf will win?”
For about 1/4 the cost of a Fluke, I decided to take a risk and buy a Chinese process meter. This company makes a clone of the 787, but I opted for the YHS-302A model (which now seems to be the YHS 7011) because it seemed to have more bells and whistles. (see bottom of article for update)
I came across this gem from

