It's within their specification. The accuracy doesn't change with your resolution option. The manual states: Programming voltage 0.05 % +10 mV, programming current 0.2% + 10 mA; Readback voltage 0.05 % + 5 mV, readback current 0.015 % + 5 mA.
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Owen, thanks that is what I was trying to understand (learn). I didn't know that "Readback" was the Displayed Voltage.
Please help me confirm if I understand this correctly now:
So with 5.000 set, I should expect no better than +/- [(0.05% x 5.000)+10 mV] ? This would equal +/- [2.5mV + 10 mV] ?? So I can expect never to have single digit mV accuracy... it will always be at best 10mV accuracy?
Similarly for Readback, assuming the true output was accurately set at 5.000 vdc, the displayed readback voltage would be +/- [(0.05 % x 5.000) + 5 mV]. So any readback within 7.5mV would be within spec?
many thanks
john