One of the specifications of the PicoScope 2205 is:
±50 mV to ±20 V in 9 ranges
Those this mean that the minimum voltage that can be detected and displayed is 50mV?
And what does the 9 ranges mean?
Input Range
Re: Input Range
Hi,
The most sensitive range on the 2205 is ±50 mV. That means that since it is an 8 bit scope it has 256 steps of resolution over the full range from 50 mV to + 50 mV and can resolve in steps of 100 mv/256 = 0.39 mV. A sine wave that is 4 mV peak to peak will be a bit like "Steps" with only 910 individual voltage levels.
There are 9 such ranges available: ±50 mV, ±100 mV, ±200 mV,±500 mV, ±1 V, ±2 V, ±5 V, ±10 V, ±20 V.
Each range will have a voltage step equal to the full scale deflection (±) divided by 256.
PeterF.
The most sensitive range on the 2205 is ±50 mV. That means that since it is an 8 bit scope it has 256 steps of resolution over the full range from 50 mV to + 50 mV and can resolve in steps of 100 mv/256 = 0.39 mV. A sine wave that is 4 mV peak to peak will be a bit like "Steps" with only 910 individual voltage levels.
There are 9 such ranges available: ±50 mV, ±100 mV, ±200 mV,±500 mV, ±1 V, ±2 V, ±5 V, ±10 V, ±20 V.
Each range will have a voltage step equal to the full scale deflection (±) divided by 256.
PeterF.

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Re: Input Range
I would highly appreciate if you could add ranges for asymmetric signals.
E.g.
1 to 9V
0 to 10V
1 to 19V
0 to 20V
Many thanks
E.g.
1 to 9V
0 to 10V
1 to 19V
0 to 20V
Many thanks
Re: Input Range
Hi,
You can use the scaling and offset controls to give you those exact ranges visible on the screen but you will lose one bit of resolution (128 steps).
PeterF.
You can use the scaling and offset controls to give you those exact ranges visible on the screen but you will lose one bit of resolution (128 steps).
PeterF.