Yes, it is.How are you displaying a waveform, when the data sheet does not explicitly show that option?
Is it the "Trend" display?
It's not an erroneous value. The displayed value is the instantaneous one at the far right which is time 0, the left is 60s. The frequency of the sine wave is 200m(illi)Hz. That is, .2/s. It's very accurate, it has no problem making the measurement.I suspect the incorrect DC reading is an artefact of the instrument’s integration time; what is the displayed value to a signal of the same amplitude at >10Hz?
It would not surprise me if a Fluke (or similar good quality DMM) displayed a similar erroneous value for the same reason – or alternatively a fluctuating DC voltage value.