The LabVIEW examples do not take into account the probe scaling factor that is set, returning the ADC counts from the driver (and scaling them using the PicoScopeAdcToVolts.vi if used).
What readings do you get if you switch the probe setting to x1?
For probe Setting to x1 I get 0,0049 and for probe setting to x10 I get 0,00049.
I think I found the solution. I changed the Range_Index paramtere in the 'PicoScopeAdcVolts.vi'. Is that correct?
If a voltage range of 5 V is set, then the voltage range index should be 8 - if it is not, please let me know.
With regards to changing the sampling interval, if you are using a block or rapid block mode capture, you can change the timebase index - please refer to the Programmer's Guide as this contains information on the formulae that maps the timebase index to a sampling interval. You will need to rearrange the formula to convert the sampling interval to a timebase index.