Author Archives: Brian Gallimore

Build Your Own Non-Linear Response

Posted on February 26, 2015 by Brian Gallimore

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 … Continue reading →

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Calculating the Volume of Irregular-Shaped Tanks

Posted on February 20, 2015 by Brian Gallimore

This is a quick demo and code listing I used to calculate the volume of a tank that is a combination of box, cylinder, and sphere shapes.  The controller is a Red Lion G3 Graphite.

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First Impressions of a RedLion Graphite HMI

Posted on February 13, 2015 by Brian Gallimore
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320 amp Meter Base Pictures

Posted on December 29, 2014 by Brian Gallimore

This gallery contains 14 photos.

This is the new meter base I’m about to install

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Stop Crimping RJ-45s

Posted on December 12, 2014 by Brian Gallimore

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 … Continue reading →

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The Two Wolves Inside Me

Posted on December 7, 2014 by Brian Gallimore

An old Cherokee is teaching his grandson about life. “A fight is going on inside me,” he said to the boy. “It is a terrible fight and it is between two wolves. One is evil – he is anger, envy, … Continue reading →

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Review of the YHS-302A Process Calibrator Meter With Multimeter

Posted on December 4, 2014 by Brian Gallimore

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 … Continue reading →

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The State, Defined by Murray Rothbard

Posted on December 1, 2014 by Brian Gallimore

I came across this gem from Real Dissent: A Libertarian Sets Fire to the Index Card of Allowable Opinion: Now what is the state, anyway? Forget all the romanticizing nonsense about social contract theories , the consent of the people, whatever … Continue reading →

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Family Pictures – 2014

Posted on November 25, 2014 by Brian Gallimore
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Data Type Comparison Chart

Posted on November 18, 2014 by Brian Gallimore

When I switch between different systems, I get confused about what size a certain data type represents , so I made this chart:

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