Is this possible to measure DC Energy without disconnect the loads at starting( without interrupt the loads)

DC voltage can be monitored by connecting the included voltage leads to your voltage source. DC current requires the purchase of a DC specific current transformer or current clamp, which is not sold by Dent. To monitor current without disconnecting the load you would need to choose a current transducer that splits or a current clamp with would allow you to place the CT or clamp on the load without disconnecting it.