User manual for the ETCR3100C tester, covering safety, operation, specifications and maintenance.
The ETCR3100C is a digital ground resistance and soil resistivity tester designed for field measurements of grounding resistance, soil resistivity, grounding voltage and AC voltage. It features four‑wire, three‑wire and two‑wire measurement methods, automatic interference suppression, a large LCD display and up to 300 data sets stored locally or transferred via USB.
The manual provides safety warnings, detailed operating procedures, battery charging instructions, data handling, alarm settings and a full list of accessories. Technical specifications, measurement ranges and environmental limits are also included. This manual is written in Chinese.
| Ground resistance measurement range | 0.00 Ω – 30.00 kΩ |
|---|---|
| Soil resistivity measurement range | 0.00 Ω·m – 9000 kΩ·m |
| Battery | 2600 mAh rechargeable Li‑ion, 7.4 V |
| LCD display size | 128 mm × 75 mm, 4‑digit large display |
| Protection rating | IP65 (sealed enclosure) |
The instrument flashes the alarm symbol on the LCD and emits a beeping sound (嘟‑嘟‑嘟).
Charge the battery for about 2 hours; do not exceed 10 hours.