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Current Sensor

Sensor Specifications


Maximum primary current: 100A
Turns ratio: 1:2000 approximately
Minimum resolution: 130mA approximately
Measurement range: 500mA ~ 40A

Measurement Process

The current clamp is a low cost sensor that outputs a current proportional to the current in the primary circuit. That current (related with the primary current through a 1:2000 ratio) is converted into voltage through a load resistor obtaining a signal readable by the mote’s analog-to-digital converter.