Inscrit le: 10 Oct 2017
|Posté le: Jeu 9 Nov - 10:39 (2017) Sujet du message: Differences in voltage measurements using DMM
I am trying to understand high voltages and am in the process of trying to measure the voltage of a high voltage source a friend made for me.
The problem is I am getting different readings depending on what probes I use on the DMM. I am using a Fluke 80k-40 HV probe and standard DMM crocodile clip probes. The DMM has Vrms upto 1000V.
When I attach the Fluke probe to the DMM and measure the voltage I get a Vrms of around 450V (0.450V on the DMM multiplied by 1000 for the probe). As the DMM goes upto 1000V Vrms I thought I could just use the original DMM crocodile clips and get the same 450V reading.
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