The operation manual for Tonghui TH2683 Insulation Resistance Tester, covering features, panel layout, operation steps, calibration and warranty.
This manual introduces the TH2683 digital insulation resistance tester, describing its dual resistance/current testing, full‑digit display, micro‑computer control, automatic parameter saving and high‑precision measurement. It also explains the selection and external trigger interfaces for production line use and the optional communication port for remote operation.
The document provides detailed panel descriptions, step‑by‑step operating procedures, test principles, calibration methods, environmental requirements, and warranty information, helping users safely and accurately measure insulation resistance of components, materials, equipment and cables. This manual is written in Chinese.