ETCR001F Flexible Coil With Integrator (Separated)

ETCR001F Flexible Coil With Integrator (Separated)

Product Characteristics

1. Measurement of AC currenthigher harmonic current complex waveforms currenttransient current

2. Starting current phase electric energypowerpower factor etc.
3. Range: AC 0A~3000A/6000/10000A(Optional

4. Signal Output:AC 01V (corresponding full range output )

5. Line Voltage: Below 600V

6. CT Structure: Rogowski coil

7. Material Coil Diameter : φ7.5mm/φ12mm(Optional)

ETCR001F Flexible Coil Current Sensor(with Integrator), suitable for a large range of AC current, high harmonic current, phase, energy, power, power factor and other measurements. Current range:  AC 0A~3000A/6000/10000A(Optional), corresponding to the output 0 ~ 1V (another gear range: 0A ~ 300A, corresponding output 0 ~ 1V) Response frequency band: 0.1Hz-1MHz, coil diameter is Φ100mm. The sensor uses advanced Rogowski coil technology, no hysteresis effect, almost zero phase error, no magnetic saturation, and high linearity. The flexible coil is the differential of the current vs. time, and the integrator integrates the output voltage signal (0~1V) to truly restore the measured current and output a complete signal waveform. The coil part is free from any exposed metal conductors and is non-contact measurement method. The operation is safe and simple. It is small in size, light in weight, exquisite in appearance, flexible and flexible. It is suitable for narrow environments and densely packed places. Users can customize coil length according to their needs. , can be integrated into other test equipment, such as power quality analyzer, harmonic analyzer, power parameter recorder, phase detection analyzer, industrial control device, oscilloscope, high-precision digital multimeter, transient shock recorder, distributed measurement System, protection system, etc.

ETCR001F-100F Flexible Coil Current Sensor(with Integrator)

1. Integrator signal output                   2. Integrator signal ground

3. Shielded ground                             4. Integrator signal output audio plug

5. Integrator power indicator              6. Integrator battery low voltage indicator

7. Power / shift switch                         8. Integrator

9. flexible coil interface                       10. flexible coil

11. Lock (front and rear rotation can lock or open the coil)


Measurement of AC currenthigher harmonic current complex waveforms currenttransient current starting current phase electric energypowerpower factor etc

Power Supply
6F22 9VDC Zinc-manganese dry batteries (external power supply)
AC 0A3000A/6000/10000A
Accuracy Class
±1%FS (50Hz/60Hz;23±2,Below 70%RH, the wire is in the center of the coil)
Signal Output
AC 01V (corresponding full range output )
Phase Error
Integrator Output Interface
3.5mmAudio frequency plug/BNC plug (Optional)
Output Line Length
Electric Field Interference
No hysteresis effect, not effected by external electric field
Wire Position
The cable in the center of the coil and the position error affects ≤±0.5% FS
Current Frequency
45Hz70Hz (Measured current frequency)
Response Frequency
Line Voltage
Below AC 600V
Integrator Weight
Integrator Size 103mmx65mmx26mm
Working Temperature
-20℃~50℃;below 80%rh
Storage Temperature
-10℃~60℃;below 70%rh
Insulating Strength
AC 2000V/rms (both ends after the coil is unlocked)
Protection Type

CAT IV 500V 、CAT 1000V

Model Coil Inner Diameter Coil Length Coil Weight Material Coil Diameter
ETCR50FA φ50mm 160mm 80g φ7.5mm
ETCR100FA φ100mm 320mm 90g
ETCR150FA φ150mm 480mm 100g
ETCR200FA φ200mm 640mm 110g
ETCR300FA φ300mm 950mm 132g
ETCR500FA φ500mm 1580mm 170g
ETCR1000FA φ1000mm 3150mm 290g
ETCR1500FA φ1500mm 4720mm 390g
ETCR200FB φ200mm 640mm 212g φ12mm
ETCR300FB φ300mm 950mm 274g
ETCR500FB φ500mm 1580mm 400g
ETCR1000FB φ1000mm 3150mm 715g
ETCR2000FB φ2000mm 6300mm 1340g
ETCR3000FB φ3000mm 9420mm 1970g


Flexible Coil


Battery (6F22 9V)
      Packing box/Manual/Warranty Card/Certificate

ETCR001F Flexible Coil With Integrator (Separated)