Non-contact AC Current and Voltage 2-in-1 Sensor
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The 3rd Generation Non-Contact AC Voltage Series was engineered to overcome the critical limitations of traditional capacitive-based sensors:
• Positional Sensitivity: Traditional sensors suffer from accuracy degradation due to wire positioning, insulation thickness, and core-to-conductor displacement. Our new design ensures high stability regardless of wire gauge or minor physical shifts.
• Environmental Drift: We have mitigated measurement errors caused by thermal expansion, contraction, and environmental fouling (contamination) that typically plague field-deployed sensors.
Data SheetThis smart sensor integrates high-impedance capacitive coupling with advanced digital signal processing—including time-frequency domain analysis, phase-locking, and AI-driven data modeling. It provides a comprehensive, non-intrusive (split-core) monitoring solution for:
• Non-Destructive Safety Monitoring: Rapid installation without conductor stripping, significantly enhancing personnel and equipment safety.
• Comprehensive Power Metrics: Real-time acquisition of current, voltage, active power, and grounding resistance.
• Asset Health Assessment: Predictive monitoring of insulation health, environmental humidity, and contamination levels.
Parameter | Range | Notes | |
Input Voltage | 30-400V | Other ranges customizable | |
2 | Voltage Accuracy | ≤1.5% | 3%–5% when wire diameter ≤ 2/3 of aperture |
3 | Input Current | 0-800A | Customizable Split-Core High-Current Type |
4 | Current Accuracy | ≤0.5% | |
5 | Power Accuracy | ≤1.0% | |
6 | Frequency Range | 45-65Hz | customizable |
7 | Output Interface | RS485 | MODBUS RTU |
8 | Power Supply | 15VDC | customizable |
9 | EFT/Burst Immunity | ±3KV | Input / Power Ports |
10 | Isolation Voltage | ≤2500VDC | |
11 | Operating Temperature | -40~80℃ | |
12 | Storage Temperature | -40~80℃ |
PIN | Def. | Instruction |
4 | VIN- | voltage reference |
7 | +15V | +15V Power Supply |
8 | GND | Power Ground |
10 | RS485+ (A) | |
11 | RS485- (B) |
• Superior Precision: AC Current ≤0.5%; AC Voltage ≤1.5%; Power ≤1%
• High-Reliability Architecture: Dual non-contact measurement for both current and voltage ensure an isolated, failure-resistant monitoring mode.
• Robust Anti-Interference: Employs Bootstrap High-Impedance Technology to neutralize co-frequency interference and spatial electric field noise.
• Intelligent Self-Management: Features automated zero-point calibration and real-time probe health diagnostics.
• Insulation and Environmental Diagnostics: Provides real-time online monitoring for the measured conductor's insulation (anomaly trends and early warnings) as well as the probe’s spatial environment (fouling and humidity).
· Terminal Compliance: Verify all terminal markings before commissioning. Unauthorized modification of signal assignments or power polarity will void the warranty and may cause catastrophic equipment failure.
· Grounding Distinction: Clearly distinguish between the Power Ground (GND), System Protective Earth (PE), and Digital Signal Ground (G0). Ensure independent wiring strictly according to specifications to maintain the independence and effectiveness of each grounding loop. This is essential to meet electrical safety and Electromagnetic Compatibility (EMC) requirements.
· Beat Frequency Mitigation: If "Beat Frequency" interference (observed as cosine wave drift) occurs during lab testing, use a stable utility power source as the reference signal instead of a standard signal generator.