Battery powered handheld 4-20mA +/-10V current / voltage source educational kitDesigned by open industry in United Kingdom
What is it? This is a handheld 4-20mA /+10 -10V current / voltage source. Supplied in kit form or bare PCB, the enclosure can be pre-drilled with mounting holes. Why did you make it? I made this b...Read More…
This is a handheld 4-20mA /+10 -10V current / voltage source. Supplied in kit form or bare PCB, the enclosure can be pre-drilled with mounting holes.
I made this because I kept breaking them at work, they are quite expensive to buy and often don't have much in the way of protection when used with PLCs / 24V c systems. Since the design is open source if anything does break on it it's very easy to repair yourself.
In particular a device that did +-10V and 0-20mA was hard to find and generally what was out there wasn't all that good.
There's no display, the dial is used to give a rough estimate of the output levels and if required a multimeter can give more accurate readings.
You can buy just the PCB or the project as a kit, if you select everything you get all the parts and a pre drilled case.
Check out my instructable here...
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