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Product Introduction
MEWOI-003G flexible coil current sensor (with integrator), composed of a flexible coil and a host, the integral structure is more convenient to use and operate. There is no exposed metal conductor in the coil part, non-contact measurement, safe and reliable; its small size, light weight, beautiful appearance, soft and flexible, suitable for narrow environments and places with dense wiring; wide measurement range, high precision, strong reliability, Response frequency bandwidth (0.1Hz-1MHz), users can customize the coil length according to their needs. Using advanced Rogowski coil technology, it is a toroidal coil wound evenly on non-ferromagnetic materials, without hysteresis effect, almost zero phase error, no magnetic saturation phenomenon, and extremely high linearity. The flexible coil is the differential of current to time. The integrator integrates the output voltage signal (0~1V) to truly restore the measured current and output a complete signal waveform. The measured current range can range from 1 ampere to tens of thousands of amperes. Mainly used for detection of current, high-order harmonic current (up to 400 times), complex waveform current, transient impact current, phase, electric energy, power, power factor, etc. Equipped with an integrator, it can be more conveniently integrated into other test equipment, such as power quality analyzers, harmonic analyzers, power parameter recorders, phase detection analyzers, industrial control devices, oscilloscopes, high-precision digital multimeters, transient Shock recorder, distributed measurement system, protection system, etc. |
Technical parameter
1. Range and accuracy
| Range | resolution | Accuracy class | phase error |
| AC 0A～3000A | 1A | ±1%FS | ≤1° |
| AC 0A ～6000A | 2a | ±1%FS | ≤1° |
| AC 0A ～10000A | 3A | ±1%FS | ≤1° |
Note: 50Hz/60Hz; 23℃±2℃, below 70%RH, the wire is at the center of the coil
2. Other parameters
| Coil diameter | Φ7.5mm |
| Coil inner diameter | Φ 150～Φ3000mm (optional) |
| power supply | Zinc-manganese dry battery 6F22 9VDC (can be connected to an external power supply) |
| Range | AC 0A～3000A/6000A / 10000A (optional) |
| signal output | Full scale corresponds to output AC 0～1V |
| phase error | ≤1°(50Hz/60Hz;23℃±2℃) |
| Integrator size | 103mm×65mm×26mm |
| Integrator quality | 200g |
| Integrator output interface | 3.5mm audio frequency plug/BNC interface/tap (optional) |
| Integrator output line length | 2m |
| Electric field interference | No hysteresis effect, no external electric field interference |
| wire position | The wire to be tested is at the center of the coil, and the influence of position error is ≤ ±0.5%FS |
| current frequency | 45Hz ~ 70Hz (measured current frequency) |
| response frequency | 0.1Hz～1MHz |
| line voltage | Line test below AC 600V |
| Random accessories | Flexible coil: 1 piece; Integrator: 1 piece; 6F22 9V battery: 1 piece |
Model Comparison
| Product number | Coil inner diameter | coil length | Coil diameter | quality |
| MEWOI-003G-100 | Φ100mm | 320mm | Φ7.5mm | 163g |
| MEWOI-003G-200 | Φ200mm | 640mm | Φ7.5mm | 180g |
| MEWOI-003G-300 | Φ300mm | 950mm | Φ7.5mm | 190g |
