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If I set NPLC to 1, I get measurements every 0.04 s, as opposed to 0.02 s as expected, unless there's something I'm missing. Operating in a 50 Hz network, so by my reckoning 1 PLC is 1/50 = 0.02 (s). At first I thought maybe the setting is not actually getting set, although the front panel was showing NPLC 1, but furthermore setting it to 0.5 changed the timing to 0.02 s, oddly. The same with setting NPLC to 2, the time between measurement points is 0.08 s.
Seeing that it's always double had me pondering, whether I'm missing something obvious, but I just can't find anything and am not setting anything that should have such an effect as far as I know.
- Keithley Applications
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