PPK2 accuracy

[Julien S]

I want to be 100% sure of my understanding about PPK2 accuracy.

https://infocenter.nordicsemi.com/topic/ug_ppk2/UG/ppk/ppk_measure_accuracy.html

For lowest range (100nA-50µA), what is accuracy ? Do I understand correctly it is “10% of reading + 2% of 50µA” ?

Meaning:

100nA +/-1.01µA

1µA +/-1.1µA

10µA +/- 2µA

Can you please confirm my understanding ? 

[droidecahedron]

I recently used the PPK2, and my interpretation of that sheet was the following:

In the range of 100 nA to 50 uA, expect a +- 10% accuracy with a +-2% offset

So 100 nA +/- 10nA for accuracy

and it could be offset by +/- 2nA

for 1uA following same logic, 

1 uA +/- 0.1uA, with up to 0.02 uA of offset.

I would also like this confirmed.

[Julien S]

When you have 200nA resolution you can't have 10nA accuracy

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_ppk2%2FUG%2Fppk%2Fppk_measure_accuracy.html

Most meter will announce %of reading + %of range or %or reading + N x lastReadingDigit
But normally range is presented as a single number meaning 50µA not like a real range 100nA-50µA

The information is misleading, that's why I want an official confirmation