MI00551-8-EN
INSTALLATION MANUAL
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ROGOWSKI SENSOR
The Rogowski sensor is a ring-shaped device designed for measuring AC, impulsive or complex waveforms.
For its correct use:
- wrap the ring on the conductor so that the arrow symbol shown in the ring is oriented in the same direction as the
conductor current
- make sure that the connections are made correctly
- for a more precise measurement, the conductor cable must be placed in a central position with respect to the ring
- for a correct measurement, calibrate the Rogowski sensor by writing the calibration coefficient in the
corresponding Modbus register (see the user manual).
Example: if the sensor is supplied with a characteristic of 90 mV / 1000 A, on the calibration register
corresponding to the phase in which the Rogowski sensor is applied, the value to be set is: 1000 / (90 · 10).
NOTE ON ACCURACY: The product has a nominal accuracy of 0.5%. The total accuracy is the sum between the
accuracy of the device and the accuracy of the Rogowski sensor connected to it.
PHASE CONDUCTOR CABLE
direction of the current in the
conductor
CLOSING HOOK AND SYMBOL OF THE
CURRENT DIRECTION
CONDUCTOR (+)
SCREEN (if any)
CONDUCTOR (-)
