The DVM option (DSOXDVM) on our InfiniiVision 3000 does not show zero volts when the input is grounded. On the DC scale it typically shows -273 mV or there abouts, which is not an inconsiderable offset. Presumably there is some way to set the reference voltage for this measurment, but I can't find it in the manual. Any help will be greatly appreciated.
Thanks,
Tom
Thanks,
Tom