The APC5048CT can be used to monitor load currents lower than 10Amps by following the equation:
A x (1+T) = 10. Where A= Load Current and T = the number of loops through the APC5048CT.
For example, if A= 3Amps and T = 3, then 3 x (1+3) = 12.
In this example, three loops around the CT will make the 3Amps look like 12Amps to the APC5048CT. The result will meet the minimum value necessary to adjust the pot "P1" to 10Vdc full scale.