DL/T 845.4-2019 in English

This standard outlines the general technical requirements for resistance measuring devices, specifically focusing on loop resistance testers. It provides detailed specifications regarding the performance, accuracy, and operational conditions of such equipment. The document includes guidelines for the design, testing, and calibration of these devices to ensure consistency and reliability in measurement processes. Additionally, it covers the necessary safety measures and environmental considerations for proper functioning. The standard also defines the terminology and reference conditions relevant to the application of loop resistance testers in various scenarios. It serves as a foundational reference for manufacturers, users, and regulatory bodies involved in the deployment and maintenance of resistance measurement systems.