The UNI-T UT501E Insulation Resistance Tester is a professional-grade megohmmeter designed for testing insulation integrity in motors, transformers, switchgear, cables, and industrial electrical systems. Featuring test voltages up to 1000V, insulation resistance measurement up to 4GΩ, PI/DAR analysis, and data storage capabilities, it is ideal for preventive maintenance, commissioning, and troubleshooting in Oil & Gas, power generation, and industrial facilities.
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Product features
Insulation resistance measurement up to 4GΩ.
Selectable test voltages: 100V, 125V, 250V, 500V, and 1000V.
PI (Polarization Index) and DAR (Dielectric Absorption Ratio) functions.
Fast insulation testing with 2.5× faster measurement speed.
Low resistance measurement range from 0Ω to 400Ω.
AC/DC voltage measurement up to 600V.
Audible and visual high-voltage alarm.
Automatic discharge after testing for enhanced safety.
Remote-control test lead for improved field operation.
Data storage for up to 99 measurement records.
USB connectivity with PC software analysis support.
Safety lock function to prevent accidental operation.
IP54-rated enclosure for industrial environments.
CAT III 600V safety rating.
Rechargeable 11.1V lithium battery system.
Materials and care
Rugged industrial housing designed for field and plant environments.
Store in a clean, dry location away from excessive heat and moisture.
Inspect test leads before each use for wear or damage.
Clean the instrument with a soft, dry cloth only.
Recharge the lithium battery regularly to maintain optimal performance.
Follow all applicable electrical safety procedures during testing.
