Negative values - How to do Factory reset in 2110

Hi,<br> For the past few days my 2110 shows negative values while measuring DCI , even in wires removed condition . How to repair it?<br> How to do factory reset<br> <br> Thanks,<br> Aria

Simply reboot the instrument will apply the factory default settings.
Also sending *RST command will restore default settings.

If no errors reported during power on, there are additional self-tests you can run from the menus.  Check the reference manual.

As for the negative number:  how big and what measure range is in use?  By how much does it exceed allowed error for the range?  Is best to have no test leads when checking the current measure offset error (open ckt).

If the error is just a little past expected values for the specifications, calibration might fix it up for you.
But if the error is very large, it may indicate a malfunction of some sort and require service.