EKM Metering

Thanks by your support but I’d like know how can I calculate using formula in order to obtain the same result that the displayed by omnimeter . p.e the measure displayed is: Step 3 Voltage line 1=259 Step 4 voltage line 2=257 Step 5 Voltage line 3=262 step 6 A1=29 step 7 A2=22 Step 8 A3=30 Step 9 po...