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Introduction
FR300R series Rogowski coil current sensor is a toroidal coil that is wound evenly over non-ferromagnetic material.
It has no hysteresis effect, almost zero phase error, no magnetic saturation, and good linearity.
The output signal is the differential of current vs. time.
By integrating the output voltage signal, the input current can be truly restored,
and its measurement current range can range from milliamperes to millions of amperes.

Specification
Model: FR300R
Coil Length: 950mm
Coil Inside Dia.: φ300mm
Function: Test AC leakage current, high current, high harmonic current, complex waveform current, transient inrush current, phase, power, power, power factor, etc.
Test mode: Flexible CT: The output signal is the current-to-time differential. By integrating the output voltage signal, the input current can be truly restored.
Coil diameter: φ8mm
Range: 0A～10kA
Output: 100mV/1kA(Optional integrator can be customized to other parameter output)
Resolution: 0.1A
Accuracy level: ±1.0%FS (50Hz/60Hz)；23℃±2℃，below 70%RH，the wire is at the center of the coil)
Phase error: ≤1°(50Hz/60Hz；23℃±2℃)
Initial phase: 90°
Output interface: BNC connector (optional audio plug, banana plug, bare wire)
Output line length: 2m
Electric field interference: No hysteresis effect, no external electric field interference
Wire position: The tested wire is at the center of the coil, and the position error affects ≤±0.3%FS
Response frequency: 0.1Hz～10MHz
Line voltage: Tested below AC 1000V
Insulation strength: AC 2000V/rms (Both ends of the coil)