The C.A C.A6460/C.A6462 ground resistance tester manual provides operation steps, measurement methods, error indicators, specifications, and safety information.
The C.A6460 and C.A6462 are digital LCD ground‑resistance testers designed for harsh environments, complying with NF EN 61010‑1, NF EN 61557 and NF EN 61326‑1 standards. The instrument features a single‑button measurement start, automatic range selection, a large back‑lit LCD, LED error indicators, four colour‑coded terminals, a metal connection plate and a built‑in buzzer.
The manual describes how to connect test leads, perform ground‑resistance, soil‑resistivity and coupling measurements using the 62 % method, interpret error signals (FAULT, HIGH RESISTANCE, HIGH NOISE), and outlines environmental limits, power options, battery life and mechanical protection specifications. This manual is written in Chinese.
| Measurement range (resistance) | 0‑2000 Ω |
|---|---|
| Resolution (resistance) | 0.01 Ω |
| Measurement current | 10 mA |
| Power supply (C.A6460) | 8 × 1.5 V LR14 batteries or equivalent NiMH/NiCd |
| Operating temperature range | -10 °C to +55 °C |
| Weight (C.A6460) | 2.850 kg |
The FAULT LED flashes when a fuse may be damaged, the circuit is open, the ground‑rod resistance is too high, or interference voltage is excessive.
The C.A6460 can be powered by eight 1.5 V LR14 cells or an equivalent rechargeable NiMH or NiCd battery pack.
The instrument operates from –10 °C to +55 °C and 20 % to 90 % relative humidity; storage temperature is –40 °C to +70 °C with the same humidity range.