mikedanylov/meaplot-Fluke289

Two meaplotter questions

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cotampanie commented

I would like to ask you two questions about your highly useful meaplottter script:

  1. In the script, you set an upper limit of 25 interactions per second. Could you please tell me where this limit comes from? Is it a limitation of the Fluke 289? If so, could you point me to a document where this limit is referenced?

  2. Is there a way to get data from the Fluke (via USB) as a continuous stream of n samples/sec during some specified time interval - rather than asking for each datum separately, as you do in the script?

mikedanylov commented

Heya!

It has been a while since I wrote that script 😅 but here are my thoughts on the matter.

  1. If I remember correctly, 25 samples was derived experimentally by playing around with different values. It is not mentioned in Fluke manual and it might be some limitation of python serial module or the way I wrote the script since it writes to file on every iteration of while loop which is not optimal at all.
  2. Here is a reference to remote interface specification I used: https://www.eevblog.com/forum/reviews/going-further-with-the-fluke-289/?action=dlattach;attach=16945
    By quickly scanning through it, the communication is done in such a way that first we need to send it some command and then receive a response with value read from multimeter.