This document is a user manual for an insulation resistance meter, including safety warnings, features, performance specifications, instrument layout, measurement preparation, and measurement methods.
This manual provides safety warnings, key features, and performance specifications for the 3144A‑3148A series insulation resistance meters. It includes detailed instructions for measurement preparation, battery checking, and proper use of accessories.
The document also describes instrument layout, measurement procedures for AC/DC voltage and insulation resistance, battery replacement, and cleaning guidelines, ensuring reliable operation in various environments. This manual is written in Chinese.
| Insulation resistance range (500V) | 100 MΩ |
|---|---|
| Maximum measurement voltage (model 3144A/3147A) | 600 V AC/DC |
| Accuracy (full scale) | ±0.7 % |
| Dimensions | ≈90 mm × 137 mm × 40 mm |
| Weight | ≈340 g (incl. battery) |
| Battery type | 4 × 1.5 V AA (R6P) |
| Rated power | 1.8 VA |
Model 3144A can measure up to 600 V AC or DC.
The 500 V range is guaranteed for at least 800 measurement cycles.