PPT Slide
What does this +1 digit mean ?
Lets say, in a circuit, we are reading a 0.812 volts using the 2V range setting
The accuracy is ±(0.1% of the reading + 1 digit)
So the accuracy is ± 0.000812 V
But the meter can only display 3 digits
beyond the decimal point (2V range)
Therefore actual reading accuracy is ± 0.001 V
For this measurement the value is [0.812 ± 0.001] V