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Product Features:

• Easily perform protective continuity testing in compliance with international safety standards and laws
• Protective continuity resistance measurement for medical devices and general electrical devices
• Ground connectivity testing when installing electrical machine tools and distribution panels
• Testing of protective grounding and isopotential grounding work for medical equipment
• Evaluation of contact status using large currents
• Feedback control system that is capable of applying a stable current even with a fluctuating load
• Soft-start function that checks the connection to the device under test before applying the current

The Hioki 3157-01 is an AC ground bond tester designed for protection circuit testing of a wide range of electrical equipment, including industrial machinery, medical equipment, and measuring instruments using a constant current system, enabling it to provide stable output current.

The 315701 AC GROUNDING HiTESTER is designed to measure whether the metal enclosure of an electrical equipment is connected to the ground terminal at sufficiently low resistance levels. It also can be used to evaluate the grounding conditions of large-scale electrical installations. Measurement is carried out by using a high current according to the specifications of the measurement object, and determining the voltage drop at the measurement point. Reference values are as set out in the various safety standards. The 3157-01 can carry out measurements in accordance with the stipulations of multiple standards.

The 3157-01 passes a large AC current through the measurement object and measures the voltage drop according to the AC 4-terminal method, making it possible to measure very low resistance values.