Model: HMJ1011-WB
Product Overview
The Smart Lightning Arrester Leakage Current Sensor is a high-precision device designed for measuring microcurrents under high voltage. By monitoring the total leakage current and its resistive component, the sensor provides insight into the operational status of metal oxide arresters (MOAs), enabling early detection of issues such as moisture ingress or aging of the valve blocks. It features high accuracy, high sensitivity, and includes a lightning strike counter function.
Key Features
1.Measures total leakage current, resistive current, and lightning strike count.
2.Supports both local display and remote monitoring modes for user convenience.
3.Utilizes LoRa wireless communication for a fully integrated, cable-free installation.
4.Powered by energy harvesting with ultra-low power consumption, ensuring long product life.
5.Equipped with an LCD screen for real-time display of precise monitoring values.
Technical Specifications
| Parameter | Specification |
| Total Current Measurement Range | 100 μA – 5 mA |
| Total Current Resolution | 1 μA |
| Total Current Accuracy | ± (2% of reading + 5 μA) |
| Resistive Current Measurement Range | 10 μA – 2 mA |
| Resistive Current Resolution | 1 μA |
| Resistive Current Accuracy | ± (5% of reading + 2 μA) |
| Protection Rating | IP68 |
| Communication Protocol | Wireless: LoRa 470 / 2.4GWired: RS485 (optional) |
| Power Supply | Wireless: Self-poweredWired: DC 24V (optional) |
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