Here is my wish list for a multimeter: Update rate: 10 measurements/second Input impedance: 1 Gigohm or 10/11 meg switchable Lowest voltage range: 1 mV Max voltage: 1000V Open circuit voltage in ohmmeter mode: <0.1 V Voltage drop in ammeter mode at full scale current: 50 mV Accuracy: 0.1% of FS, 4.5 digits Autoscale time: 250 ms max Display: Illuminated LCD with no timeout, at least 1 inch high, wide viewing angle both vertical and horizontal Can run on USB power to save batteries and allow leaving it on all the time. Capacitance: 1 pF resolution
NOT on my wish list, but maybe on yours: True RMS @ <crest ratio> I've always been OK with "Fake RMS" (fake news?) where the meter calculates the average of the absolute value and multiplies by pi/(2sqrt2) and displays RMS assuming a sine wave. Optional: data logging out for Labview, etc. When shopping for a meter, consider which of the above features are important to you. AFAIK, there is no ideal or even close to ideal meter. They are all limited in capabilities. You need to decide what you need, as you probably can't have everything. I recommend starting with Fluke (and I say that as a former HP/Agilent employee). At Agilent I had access to multi thousand dollar meters, and in many cases preferred a cheap "Tenma" handheld meter that was in "labstock" for various reasons. Also, does price matter? :-) Rick On 3/23/2019 5:05 AM, Jim Palfreyman wrote:
Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
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