This is the user manual for HJZL-DZ Three-Phase Transformer DC Resistance Tester, including product features, performance indicators, panel instructions, testing and operation methods, precautions, fault analysis and troubleshooting, transportation, storage, unpacking and inspection.
This manual introduces the HJZL D Z three‑phase transformer DC resistance tester, describing its purpose, key features and the LCD panel layout. It explains how to set up the instrument, select measurement modes (single‑phase, two‑phase, three‑phase) and record results using the built‑in printer and memory.
Safety precautions, fault analysis, transportation, storage and unboxing procedures are detailed to ensure reliable and safe use. The document also lists performance specifications such as test current ranges, measurement accuracy and environmental limits. This manual is written in Chinese.
| Test current (single‑phase) | 1 A, 5 A, 10 A, 20 A |
|---|---|
| Test current (three‑phase) | 1 A, 5 A, 10 A |
| Measurement accuracy (full scale) | ±0.2 % (±2 digits) |
| Maximum resolution | 0.1 µΩ |
| Data storage capacity | 150 measurement sets |
| Power supply | AC 220 V ± 22 V, 50 Hz ± 2 Hz |
| Operating temperature | 0 °C – 40 °C |
| Relative humidity (max) | ≤ 80 % |
The instrument can store up to 150 measurement sets in its non‑volatile memory.