ASCO Sigma LT is a portable control system for load banks. The handheld controller has a 4.3-in. color touchscreen and networks as many as 25 load banks using fast and industry-standard CAN bus communications protocol. Users can monitor and control all networked load banks or a single unit in the network from a distance as much as 800 ft. An aluminum case protects controller components. The touchscreen has electronically controlled push buttons for load selection. The screen displays 3-phase voltage, power, current, and frequency readings and selected load. It also provides true, de-rated loading when the working voltage is less than load bank nominal voltage. Data logging and statistical data can be downloaded to a USB flash.