Deskripsi Produk
Hioki insulation testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The IR4057 is a 5-range, 50V to 1000V digital insulation resistance tester with bargraph, and delivers efficient functions and features to help shorten work time associated with field insulation testing. CAT III 600 V Key Features • 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ • Digital bar graph • Stable & high-speed digital readings, 0.3 second response time for PASS/ FAIL decisions • Drop proof onto concrete from 1m (3.28 feet) • Bright LED, luminous LCD, test lead with bright LED lamp to illuminate near hand (Option L9788-11 or L9788-10) • Continuity check via 200 mA testing • Built in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles
Model No. (Order Code)
| IR4057-20 | High-speed model |
|---|

Product Video
How to Use Digital Insulation Resistance Meters – Basic Course
This video explains how to use a digital insulation resistance tester to measure a distribution panel. ※ Shooting was done with Japanese model IR 4052. The global model name is IR 4057.
Comparator function provides PASS/ FAIL decisions at a glance
Compare measured values to pre-set reference values to generate a pass or fail judgment with the Comparator function. (also pair with insulation resistance measurement and low-resistance measurement) The insulation testers give you pass/ fail results using a beeping sound, LCD light, and indication right on the test lead with remote control switch (option), letting you check for insulation integrity without needing to look at the instrument.
200 mA grounding line continuity check function
The Insulation testers can perform EV and HEV continuity checks as well as resistance measurement of safety conductors in building electrical equipment as defined by IEC 60364.











