The HZHL-100A loop resistance tester utilizes advanced digital circuit and switching power supply technology. Designed specifically for measuring contact and loop resistance in switch control equipment, it delivers a precise 100A DC test current as recommended by national standards.


| Parameter | Value |
|---|---|
| Measurement range | 1–1999.9µΩ |
| Resolution | 0.1µΩ |
| Test current | ≤100A |
| Measurement accuracy | 1–1000µΩ: 0.5%; 1000–1999.9µΩ: 1% |
| Display mode | Current / Resistance: 3.5-digit LCD |
| Working mode | Continuous |
| Working power supply | AC220V |
| Volume | 470 × 280 × 210 mm |
| Weight | 15 kg |