DC signal measurement with Analog discovery 2

[phillcau]

Ihave two DC signals to be measured.

I have tried to measure them via O'Scope. But the measured values are zero.

I have searched the related topic, and I knew that the voltmeter tool can be used for this purpose.

My question is

" Can the DC signals not be measured with O'Scope tool ?"

Most desktop O'scopes can maesured these DC Signals.

Hope to receive to the answer.

[JColvin]

Hi @phillcau,

You can measure DC voltages with the oscilloscope. I have attached a picture of how this might look:

In terms of why you might not be seeing the intended value, I would recommend taking a look at the range setting of your oscilloscope channels (by default it uses 200 mV/div so for example a 2V signal would be "off the screen" and you might only see the second, probably unattached, oscilloscope channel. Additionally if you have not done so, I would also double check the grounds of the two devices are connected.

Let me know if you have any questions.

Thanks,
JColvin

[attila]

Hi @phillcau

If you are using the the BNC Adapter make sure the coupling jumpers behind the Scope sockets are in DC position and not in AC (or missing).

Edited September 24, 2021 by attila