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Reply to "R2LC Smoke Unit Output Voltage"

George, all tests were done in command mode.  It probably would be interesting to do a similar test in conventional mode, I may give that a stab.

 

All the meters I have, from the cheap harbor freight model to the Fluke bench meter read the half-wave DC signal as AC as I indicated.  I seriously doubt they're all broken.  Some inexpensive meters just use a diode to measure AC and feed that into the DC circuit.  If that's the case, flipping the leads on the half-wave rectified signal may give you a different reading.

 

You said:

 

I use a cheap Craftsman $20 multi meter,not a Fluke

I hope you're not actually suggesting that your cheap Sears meter is right, but my lab quality bench meter is wrong, that's just not logical.  Since all the other meters I checked (yes, all digital) get the same results, I'm pretty sure that's the accepted correct reading.  Remember, the meter is not seeing the DC bias, it's merely reacting to the apparent AC waveform it sees.

 

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