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I would like to log a voltage ( 6.3V ) and a current ( 150mA) in the same time and then use the table to build a graph. Is there a multimeter which can do that at some chosen frequency ( aprox 3-5 times/second ).
Metrix MTX3283 DMM can log V and I in the same time (3 wires only), fastest sample rate is 1 measurement/second, and the maximum length is about 3000 measurements. The log is kept inside the DMM, so it can log without a PC.
That's what I have, it makes nice charts and could export the logged data. This is an example of logged U and I for a LiIon battery, in order to calculate the battery's capacity.Yes, it's a French DMM, made by Chauvin Arnoux. "Frantuzesc" is spelled "franțuzesc" in Romanian, with diacritic "ț" instead of "t", but I don't get what's the point about that.
Quote from: AlexResch on September 06, 2018, 09:45:36 amI would like to log a voltage ( 6.3V ) and a current ( 150mA) in the same time and then use the table to build a graph. Is there a multimeter which can do that at some chosen frequency ( aprox 3-5 times/second ).My solution to this was to use two or three multimeters, and to create my own logging software that could capture data from several meters simultaneously into one log file.
Many of the cheap ones can only sample once per second. You may need to synchronize and stagger them to get the sample rate up. Ten UT61Es should do the job.