We have couple of BMV-501 onboard our vessel. 
                
 
                
                  One of the monitors is showing constant -2.6A current being measured, hence the monitor is displaying a usage whereas i have checked with the electrician and it seems to be an offset in our system. 
                
 
                
                  Would it be possible to “re-zero” the current detection threshold to 2.6A? that way the monitor would only compute usage when the consumption is measured above this 2.6A.