1 PCS used Emerson JYM‑IIA DC System Insulation Monitor #LYQ007
1 PCS used Emerson JYM‑IIA DC System Insulation Monitor #LYQ007
| Parameter Category | Parameter Name | Specification |
|---|---|---|
| Basic Specifications | Product Model | JYM‑IIA (Vertical‑mount) |
| Product Type | DC System Insulation Monitor | |
| Mounting Style | Vertical | |
| Application | DC power systems (110Vdc, 220Vdc), power operation power supplies | |
| Electrical Parameters | Operating Voltage | 80–320 Vdc |
| Power Consumption | < 20 W | |
| Communication Interface | RS485 | |
| Alarm Output | Dry contact / RS485 communication | |
| Measurement Parameters | Voltage Measurement Range | 0–320 Vdc |
| Voltage Measurement Accuracy | ±1% (full scale) | |
| Insulation Resistance Alarm Threshold | 0.5–50 kΩ (default: 20 kΩ) | |
| System Ground Resistance Accuracy | 0–2 kΩ: ±1 kΩ
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| Branch Ground Resistance Accuracy | Pure resistive: 0–2 kΩ: ±1 kΩ; 2–25 kΩ: ±15%
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| Branch Scanning Time | 2–4 s | |
| Low‑frequency Signal | ~4 V, 10 ± 0.1 Hz | |
| Alarm Hysteresis | 40% | |
| System Capacity | Number of Slave Units | 1–32 units |
| Max. Monitored Branches | 768 channels | |
| Mechanical Parameters | Weight (Master) | < 4 kg |
| Weight (Slave) | < 1.5 kg | |
| Environmental Parameters | Operating Temperature | −5 °C to +40 °C |
| Relative Humidity | ≤ 90% RH (non‑condensing) | |
| Protection Level | IP20 (typical) | |
| Features | Self‑diagnosis | Built‑in self‑check function |
| Capacitive Compensation | Automatic branch capacitance compensation | |
| Dual Bus Support | Monitors two independent DC busbars |
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