Yes I short the probes and then click OK but it still shows the same 0.2mv, should it go to zero at this point.
The meter when trying to display frequency goes to zero even when there is a reading on the scope. The values on the scope and measurements are correct it is the meter thats does not respond.
I had been using this on the parrell port and it did work fine, but am now using USB, is this the problem? the ADC100 is the older type.