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Insulation Resistance Tester – Megger UT501A – 1000V

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Specifications Range Best Accuracy
Model UT501A
Insulation Resistance (Ω) Test Voltage 100V/250V/500V/1000V 0%~10%
100V 0.00MΩ~100MΩ ±(3%+5)
250V 0.00MΩ~99.9MΩ ±(3%+5)
100MΩ~5.0GΩ ±(5%+5)
500V 0.00MΩ~99.9MΩ ±(3%+5)
100MΩ~5.0GΩ ±(5%+5)
1000V 0.00MΩ~99.9MΩ ±(3%+5)
100MΩ~5.0GΩ ±(5%+5)
Load Current 50V (R=50kΩ) 1mA 0%~10%
100V (R=100kΩ) 1mA 0%~10%
250V (R=250kΩ) 1mA 0%~10%
500V (R=500kΩ) 1mA 0%~10%
1000V (R=1MΩ) 1mA 0%~10%
Short Circuit Current <2mA
AC Voltage (V) 30V~750V ±(2%+3)
Display Count 2000
Auto Range
Low Battery Indication
LCD Backlight
Alarm Light Display
Alarm Buzzer
HighVoltage Indication
Over Load Indication
Auto Disharge
Test Voltage Vice Display
10MΩ Internal Resistance Test


UT501A Insulation Tester (Digital Megger) 
UT500 series insulation testers are used to measure the insulation resistance of electrical equipment and household appliances. This is done by measuring the insulation resistance between electrical circuits or between circuits and ground. UT500 series can measure insulation resistance, AC voltage, low resistance, PI (Polarization Index) and DAR (Dielectric Absorption Ratio). These are ideal tools for ensuring transformers, generators, high voltage motors, power capacitors, power cables, arresters and other electrical equipment that can operate in a safe and accurate manner.
  • 2000 count LCD display, overload indication, backlight
  • AC voltage measurement, auto power off
  • Auto discharge
  • Continuous measurements mode, red warning light and buzzer function

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