Analytical Development ADC 225 MK3 Medical CO2 measure 1986
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 Published On Apr 17, 2024

compleetly dead unit all was wrong with this one, so it was a pull it all apart for fun,
a real tear it all down video, but the good thing is, we get to see all the cool details,
After the video was made i figured a lot more out about measurement methode,
heater = IR light source, Shutter turn on/off signal to measurement, and reference at the SAME time, IR filters from source only pass thru correct wavelength to activate / heat up CO2, reference and measurement air gets IR and expand, IF CO2 is there, more CO2 = more expand, both sides are connected to each side of membrane = ultra sensitive microphone, a condenser mic, with two oscillators for even higher result of the differance,
the differance measurement is in sync with shutter, 3 phase motor, temperature compensations and heater and calibration systems also a part of this unit, very impressive design. unit is 27kg big and heawy.
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#medical
#repair
#teardown
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I use auto generated subs, I go thru them my self, but i am far from perfect at finding all errors, so if you find errors worth fixing, please comment (or PM) with the TIME in the video you saw the error, i will be happy to fix it. This also apply to the Danish version.
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(Thanks to all my Sponsors / Traders / Swappers / Sellers / Buyers, without your support and constant flow of cool items in/out, none of this would be possible)

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