The FR100RD Roche coil current sensor is a circular coil uniformly wound on a non-magnetic material, with no hysteresis effect, almost zero phase error, no magnetic saturation phenomenon, and extremely high linearity. The output signal is the derivative of current over time. By integrating the output voltage signal, the input current can be accurately restored, and the measured current range can range from milliampere level to tens of thousands of amperes. Mainly used for detecting AC leakage current, high current, high-order harmonic current, complex waveform current, transient impulse current, phase, electrical energy, power, power factor, etc. Paired with integrators, it is easy to integrate into other devices such as on-site calibrators for electric energy meters, multifunctional electric energy meters, oscilloscopes, digital multimeters, cable identification devices, cable fault detectors, double clamp grounding resistance testers, double clamp phase voltmeters, digital current recorders, etc. It can measure and compare various electrical parameters without interruption.

FR100RD flexible coil current sensor has no exposed metal conductors in the coil part, non-contact measurement, safe and reliable; Its small size, light weight, exquisite appearance, soft and flexible, suitable for narrow environments and places with dense wiring; Wide measurement range, high accuracy, strong reliability, and response frequency bandwidth. Users can customize coil length according to their needs. Widely applicable to fields such as electricity, communication, meteorology, railways, oil fields, construction, metrology, scientific research and teaching units, industrial and mining enterprises, etc. Especially suitable for industrial environments with severe signal distortion, such as relay protection, thyristor rectification, variable frequency speed regulation, semiconductor switches, power electronic conversion equipment, arc welding, etc.

2、 Model specifications

model	FR100RD	FR200RD	FR300RD
Coil length	315mm	630mm	950mm
Inner diameter of coil	φ100mm	φ200mm	φ300mm
quality	About 230g	About 250g	About 270g

2、 Technical specifications

workability	Detection of AC leakage current, high current, high-order harmonic current, complex waveform current, transient impulse current, phase, electrical energy, power, power factor, etc
detection	Flexible CT: The output signal is the derivative of current over time. By integrating the output voltage signal, the input current can be accurately reconstructed
Coil diameter	φ8mm
measureCheng	0A～10kA
dividedistinguishrate	0.1A
transportgo out	0.3mV/A 3mV/A 30mV/A three levels (customizable 0-5V, 4-20mA outputs, etc.)
power supply	9V 6F22 battery
Low power indication	have
workconsume	The voltage output is 6 mA, and one alkaline dry battery is expected to provide continuous power for 80 hours
accuracy class	±1.0%FS (50Hz/60Hz)； 23 ℃± 2 ℃, below 70% RH, with the wire at the center of the coil)
phase error	≤1°(50Hz/60Hz；23℃±2℃)
output interface	BNC connector (optional audio plug, banana plug, bare wire)
Output line length	2m
Electric field interference	No hysteresis effect, unaffected by external electric field interference
Wire position	The tested wire is located at the center of the coil, and the position error affects ≤± 0.3% FS
response frequency	0.1Hz～10MHz
line voltage	AC 1000V and below line testing
Working temperature and humidity	-20℃～50℃； Below 80% RH
Storage temperature and humidity	-10℃～60℃； Below 70% RH
Dielectric Strength	AC 2000V/rms (coil ends)
Suitable for safety regulations	IEC1010-1、IEC1010-2-032、 Pollution level 2 CAT IV 1000V
Random attachments	Sensor: 1 piece