Electrical help

Discussion in 'Architecture & Engineering' started by domesticated om, Jul 29, 2008.

  1. domesticated om Interplanetary homesteader Valued Senior Member

    Messages:
    3,231
    Google isn't being very helpful......it may be that I'm using the wrong keywords. Here are my questions:

    I'm looking for a device similar to a multimeter that measures amperes and can be plugged into a computer.
    On the computer, the software needs to provide a graph of the current draw so I can watch it fluctuate in real time. It would also be nice if it calculated things like "RMS" or any other relevant quantities .


    I have found multimeters than can be connected to a computer, but they only measure up to 10 amps. The various devices I'm connecting to it may draw more.

    Any help would be appreciated.
     
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  3. leopold Valued Senior Member

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  5. MacGyver1968 Fixin' Shit that Ain't Broke Valued Senior Member

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    What exactly are you trying to measure? The total AC current draw of the power supply, or individual systems within the computer..like the vid card?

    They do make RMS voltmeters. I used to have a Fluke similar to this:

    http://www.kiesub.com/prostores/servlet/Detail?no=84

    To measure current directly in a DC circuit, you have to open up the circuit and put the meter in series with the load. Unfortunately a clamp-on meter won't work with DC.
     
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  7. Mr. Hamtastic whackawhackado! Registered Senior Member

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    You may need to consider an actual oscilloscope for higher amperage stuff.
     

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