Hioki IR4057-50 Insulation Tester
The IR4057-50 is a high-speed, five-range digital insulation resistance tester spanning 50 V to 1000 V, designed for rapid, accurate insulation measurement with intuitive bar-graph display and wireless options, making it ideal for field service and industrial electrical maintenance.
Description
The IR4057-50 is engineered to deliver fast, reliable insulation resistance testing across a broad voltage range. It supports five test voltages (50 V, 100 V, 250 V, 500 V, 1000 V), enabling it to handle a variety of insulation measurement tasks. Its digital bar-graph display provides a quick visual trend, while stable, high-speed readings—typically in 0.3 seconds—help you make judgments quickly. The tester is also equipped with a pass/fail comparator function to streamline routine inspection. The device is compatible with a remote-control test lead which even shows test status directly on the lead. For more advanced use, it supports wireless data transfer (with an optional adapter) to mobile devices, enabling logging, reporting, or documentation in real time. With a robust design meant to endure field conditions, the IR4057-50 combines speed, convenience, and connectivity for professional insulation testing.
Features
- Five Test Voltage Ranges — 50 V, 100 V, 250 V, 500 V, and 1000 V for insulation resistance measurement from about 100 MΩ up to 4000 MΩ.
- Fast Response — Stable readings with a typical response time of 0.3 s.
- Digital Bar-Graph Display — Offers a visual trend indication in addition to numeric values.
- Pass/Fail Comparator Mode — Lets users preset threshold values and receive instant pass/fail judgments.
- Remote-Control Test Lead Support — Includes controls and indicators to show test status directly on the lead itself.
- Wireless Data Capability — With an optional wireless adapter, measurement data can be transferred to a mobile device for logging or reporting.
- Robust Field Design — Built to handle durable use, intended for on-site work.
- DC/AC Voltage Measurement — Can measure DC voltage up to 1000 V and AC voltage in a specified range, useful to check whether circuits are live before insulation testing.
- Stable Digital Measurement — Helps reduce fluctuations and ensures reliable readings even under challenging conditions.
Includes
- Connection cable L4930 ×1
- Alligator clip set L4935 ×1
- Test pin set L4938 ×1
- Neck strap ×1
- Instruction manual ×1
- LR6 (AA) alkaline batteries ×4
