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MEWOI300G Portable High Accuracy Rogowski coil Flexible coil current sensor/meter/probe

INTRODUCTION

MEWOI300G Flexible coil current sensor (Rogowski Coil ), use of advanced Rogowski coil technology, is a toroidal coil wound on a non-uniform ferromagnetic material, no hysteresis effect ,phase error is almost zero, and no magnetic saturation, high linearity. The output signal is current on the time differential, the output voltage signal by integrating the input current can be true to, the measurement current range from milliamps to tens of thousands of ampere. Mainly used for measure AC leakage current, AC big current, high harmonic currents (Up to 400 times), complex Waveforms current, inrush transient current, Phase, electric energy, power, power factor. With an integrator, ease of integration to other devices, such as the phase detection analyzer, industrial control devices, data loggers, oscilloscopes, harmonic analyzer, power quality analyzers, high-precision digital multicenter, transients recorder, distributed measurement systems, protection systems.

MEWOI300G No exposed metal conductor, non-contact measurement, safe and reliable; Small size, light weight, soft and flexible, suitable for cramped environment and cable-intensive sites, And measure the size of a large or irregularly shaped conductor current; Wide measurement range, high accuracy, reliability, response, bandwidth (0.1Hz-1MHz); Coil length can be customized according to user requirements, Particularly suitable for relay protection, silicon controlled rectifier, frequency control , semiconductor switches, Power electronics conversion equipment, arc welding and other industrial environments serious signal distortion.

Click to Download: MEWOI200G.300G.400G User Manual

Click to download: Selection Map

TECHNICAL SPECIFICATION

Function	measure AC leakage current, AC big current, high harmonic currents, complex Waveforms current, inrush transient current, Phase, electric energy, power, power factor.
testing method	Flexible CT: The output signal is current on the time differential, the output voltage signal by integrating the input current can be true to
Coil length	315mm /650mm/1000mm (Can be customized)
Inner diameter	Φ100mm/Φ200mm/Φ300mm (Can be customized)
Diameter	Default:φ7.5mm/φ12mm (optional)
Range	10mA～10000A～more
Resolution	10mA
Accuracy	±0.1%FS (50Hz/60Hz; 23℃±2℃, Below 70%RH, cable in the center of the coil)
Phase Error	≤0.1°(50Hz/60Hz; 23℃±2℃)
Output Interface	3.5mm audio plug/ BNC plug/ pigtail (optional)
Output Cable Length	wire length: 2M
Electric field interference	No hysteresis effect, No electric interfering field
Wire Position	Being tested wire at the center of the coil, position error influence ≤ ± 0.3% FS
Current Frequency	45Hz~70Hz(The measured current frequency)
response frequency	0.1Hz~1MHz
Line Voltage	Below AC 1000V line test
Weight	115g/130g/150g
Working Temperature and Humidity	-20℃~50℃; below 80%rh
Storage Temperature and Humidity	-10℃~60℃; below 70%rh
Insulation strength	AC 2000V/rms
Safety Specifications	IEC1010-1, IEC1010-2-032, class of pollution2, CAT IV 600V 、CAT Ⅲ1000V
Accessories	Sensor: 1pcs

STRUCTURE DRAWING

MEWOI OEM/ODM Instruments Manufacturer

4.1. Coil pigtail output 4.2. Coil pigtail output 4.3. Lead shield layer 4.4. Audio plug

4.5. Output lead 4.6.Coil 4.7.Handle 4.8.Trigger

	Clamp FireWire Or Zero Line to measure the current of this line(Noted to clamp 1 wire)
	Clamp FireWire and Zero Line to measure the single phase current(Noted to clamp 2 wires)
	Clamp ground wire to measure the leakage current(Noted to clamp 1 wire)
	Clamp 3 phase 3wires to measure the 3 phase leakage current(Noted to clamp3 wires)
	Clamp 3 phase 4 wires to measure the 3 phase 4 wires leakage current(Noted to clamp 4 wires)

SELECTION GUIDE 2

Flexible Coil Current Sensor Probe For Terminals Such as Mulitimeter&Oscilloscope

Click "Blue" marked Model No. to View the Spec

Model	Flexible CT	Range	Resolution	Coil length	Diameter	Application
MEWOI200G	Φ100 mm	AC 10mA~10000A~more	10mA	315mm (Can be customized)	φ7.5mm(suitable for narrow and cable-intensive places)	Measure AC big current, high harmonic currents, complex Waveforms current, inrush transient current. Suitable for measuring the size of a large or irregularly shaped conductor current
MEWOI300G	Φ200 mm	AC 10mA~10000A~more	10mA	630mm (Can be customized)	φ7.5mm(suitable for narrow and cable-intensive places)
MEWOI400G	Φ300 mm	AC 10mA~10000A~more	10mA	1000mm (Can be customized)	φ7.5mm(suitable for narrow and cable-intensive places)

1. Other Size Can be customized

Product Photo	Model	Coil Circle Diameter	Coil Length	Coil Weight	Coil Diameter
	MEWOI150GA	φ50mm	160mm	80g	φ7.5mm
	MEWOI200GA	φ100mm	320mm	90g
	MEWOI250GA	φ150mm	480mm	100g
	MEWOI300GA	φ200mm	640mm	110g
	MEWOI400GA	φ300mm	950mm	132g
	MEWOI600GA	φ500mm	1580mm	170g
	MEWOI2000GA	φ1000mm	3150mm	290g
	MEWOI2500GA	φ1500mm	4720mm	390g
	MEWOI300GB	φ200mm	640mm	212g	φ12mm
	MEWOI400GB	φ300mm	950mm	274g
	MEWOI600GB	φ500mm	1580mm	400g
	MEWOI2000GB	φ1000mm	3150mm	715g
	MEWOI3000GB	φ2000mm	6290mm	1340g
	MEWOI4000GB	φ3000mm	9420mm	1970g

Note: Coil length and interface can be customized according to request.

SELECTION GUIDE 2

Clamp on Current Sensor Probe For Terminals Such Mulitimeter&Oscilloscope

Click "Blue" marked Model No. to View the Spec

Model	Range	Resolution	Clamp Size	Power Supply&output	Hall effect	Current induction output,Direct Coil tap	Others
MEWOI107BE	0mA~60A (AC/DC)	1mA	Φ7mm	Power Supply: 9VDC, Output:10mV/A,100mV/A, Accuracy 3%	√		Suitable for small spaces AC / DC leakage current, low current test.
MEWOI108	0.0mA~30A (AC)	0.1mA, Accuracy 0.5%	Φ8 mm			√	Suitable for small spaces AC leakage current, harmonic, phase, Power test
MEWOI114	0.00mA～100A(AC)	0.01mA, Accuracy 1.0%	Φ14 mm			√	Suitable for small spaces AC leakage current, harmonic, phase, Power test
MEWOI115	0.00mA～100A	0.01mA	17mm×18mm			√	High accuracy AC leakage current
MEWOI116	0.00mA～20A (AC)	0.01mA,0.5%	Φ16mm			√	High accuracy AC leakage current
MEWOI130	0.00mA~30A (AC), 800:1	0.01mA,Accuracy: 0.5%	25*30mm			√	Double shielding, anti-jamming capability,suitable for leakage current,small current test.
MEWOI130E	0.00A~100mA (DC),	1mA	25*30mm	Power supply: 9VDC, output:25mV/1mA,Accuracy: 3%			Double shielding, anti-jamming capability,suitable for small DC current test.
MEWOI130E2	0.0mA ~100mA (DC),	0.1mA	25*30mm	Power supply: 9VDC, output:0~2.5mV/1mA,Accuracy: 3%，Turns ratio：1:800			Double shielding, anti-jamming capability,suitable for DC leakage current test.
MEWOI130BE	0mA~60A (AC/DC)	1mA	25*30mm	Power supply: 9VDC, output:10mV/A，100mV/A,Accuracy: 2%	√		suitable for AC/DC current test
MEWOI135BE	0.0A~1000A (AC/DC)	0.1A	30*35mm	Power supply: 9VDC, output:1mV/1A,Accuracy: 2%	√		suitable for AC/DC current test
MEWOI140	0.00mA ~40A (AC) Turn Ratio 800:1	0.01mA,Accuracy: 0.5%	35*40mm			√	Single shielding, suitable for leakage current, small current test
MEWOI140B	0.0A~600A (AC) Turn Ratio 1:4000	0.1A, Accuracy: 1%	35*40mm			√	suitable for big current test
MEWOI140C	0.0mA ~100A (AC) Turn Ratio 1:2000	0.1mA, Accuracy: 1%	35*40mm			√	suitable for current, harmonic, phase, Power test
MEWOI140E	DC 0mA～1000mA	1mA, Accuracy: 3%	35*40mm	Power supply: 9VDC, output:1mV/1mA,Accuracy: 3%
MEWOI150	0mA ~ 600A AC	1mA,0.5%	Φ50mm
MEWOI168	0.00mA ~60A (AC)	0.01mA, Accuracy: 0.5% 800：1	Φ68mm			√	Double shielding, anti-jamming capability,suitable for leakage current, current test
MEWOI168B	0.0A~800A (AC)	0.01A, Accuracy: 0.5% 2000：1 / 0～3V(7.5Ω)	Φ68mm			√	suitable for current, harmonic, phase, Power test
MEWOI168C	0.00A~1000A (AC)	1mA, Accuracy: 2%	Φ68mm			√	suitable for current, harmonic, phase, Power test
MEWOI168BE	0.0A~1500A (DC), 0.0A~1500A(AC)	0.1A	Φ68mm	Power supply: 9VDC, output:1mV/1A, Accuracy: 3%	√		suitable for AC/DC big current test
MEWOI170	0mA ~ 1000A	1mA	Φ70mm	output signal: mA/A;mV/A;1A;5A
MEWOI180	AC 0.00mA～60A	0.01mA 0.5% 800:1	80X80mm
MEWOI248	AC 0.0mA～100A	0.1mA 0.5% 800:1	108X148mm

TECHNICAL SPECIFICATION

Function	measure AC leakage current, AC big current, high harmonic currents, complex Waveforms current, inrush transient current, Phase, electric energy, power, power factor.
testing method	Flexible CT: The output signal is current on the time differential, the output voltage signal by integrating the input current can be true to
Coil length	630mm (Can be customized)
Inner diameter	Φ200mm(Can be customized)
Diameter	φ7.5mm(suitable for narrow and cable-intensive places)
Weight	130g
Range	10mA~10000A~more
Resolution	10mA
Accuracy	±0.3%FS (50Hz/60Hz; 23℃±2℃, Below 70%RH, cable in the center of the coil)
Phase Error	≤0.1°(50Hz/60Hz; 23℃±2℃)
Output Interface	3.5mm audio plug
Output Cable Length	2m
Electric field interference	No hysteresis effect, No electric interfering field
Wire Position	Being tested wire at the center of the coil, position error influence ≤ ± 0.3% FS
Current Frequency	45Hz~70Hz(The measured current frequency)
response frequency	0.1Hz~1MHz
Line Voltage	Below AC 1000V
Working Temperature and Humidity	-20℃~50℃; below 80%rh
Storage Temperature and Humidity	-10℃~60℃; below 70%rh
Insulation strength	AC 2000V/rms
Safety Specifications	IEC1010-1, IEC1010-2-032, class of pollution2, CAT IV 1000V
Accessories	Sensor: 1pcs

Sensor: 1pcs