Digital Multimeters (DMMs) and Precision DC Sources

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Time base and sampling rate with Tektronix DMM 4040 and 4020



I'm using the Tektronix DMM4040 with LabView Signal Express Tektronix Edition. When logging time-dependent data from the DMM4040, the results are displayed as a function of the number of 'iterations'. How can I correlate the number of iterations with the time (e.g. since the beginning of the log) ? When a duration in seconds is defined as a stop condition for the log, the logging terminates at the number of iterations, not the number of seconds. If, for instance, a duration of 30 s is specified and the sampling rate is approximately 2 iterations per second, execution terminates after 15 s, not 30. This is clearly a malfunction of the software.

I would like to able to record my data as a function of time directly, ideally without having to manually convert iterations to seconds. As far as I can see, there is no way how the software could tell me how many iterations correspond to a second.


I hope someone can help ...


With many thanks in advance !

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This board is for NI DMM's and DC sources. You should post your question to the SignalExpress board.

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Sorry, I didn't know such a board existed.

Thanks for pointing it out.

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