New DLT Series Power Transducers Provide a Low-cost Alternative for Monitoring Photovoltaic Panels

The new DLT current transducers from NK Technologies are single range, take less panel space in combiner or re-combiner boxes, and produce a 4-20mA signal through a two wire loop, using nominal 24VDC in series with the output. As with all loop powered signals, they can be converted to 1-5 VDC or 2-10 VDC by the addition of a field installed resistor across the controller input terminals. The design saves time and cabling costs, as just two wires are used rather than four with previous designs.

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