Model:
HMJ1011-WBJ
Overview:
The HMJ1011-WBJ is a precision sensor designed to monitor leakage current and resistive current components of lightning arresters. By tracking these values, it can detect early aging or moisture issues in MOA varistors. It also features a lightning strike counter, offering high sensitivity and accuracy.
Features:
- Measures total current, resistive current, and lightning strike counts
- Supports both local pointer display and remote monitoring
- LoRa wireless communication, no wiring required
- Self-powered, ultra-low power design ensures long service life
- Pointer-type analog display for real-time on-site readings
Main Specifications:
| Parameter | Specification |
| Total Current Range | 100μA–5mA |
| Total Current Resolution | 1μA |
| Total Current Accuracy | ±(2% of reading + 5μA) |
| Resistive Current Range | 10μA–2mA |
| Resistive Current Resolution | 1μA |
| Resistive Current Accuracy | ±(5% of reading + 2μA) |
| Protection Level | IP68 |
| Communication Protocol | Wireless: LoRa 470/2.4G |
| Wired (optional): RS485 | |
| Power Supply | Wireless: Self-powered |
| Wired (optional): DC24V |
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