DC voltage transducer

November 2014 Electrical Power & Protection

OSI of the USA has recently released a new DC voltage transducer with user-selectable input ranges and a 4-20 mA output.

The unit has 16 input ranges designated millivolt, low voltage and high voltage: 50-500 mV in five steps. 5 to 50 V in five steps and six ranges from 50 to 600 VDC. The unit is housed in a plastic DIN-rail case and is powered by 24 VDC. Accuracy comes in at 0,5% full scale with isolation tested to 2500 VAC.

Applications include shunt isolation, solar string voltage monitoring, monitoring of battery systems, rectifier monitoring and control, monitoring of over or under-voltage conditions, for example to avoid DC motor damage.

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