UT500 Series Insulation Resistance Testers

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). These are ideal tools for ensuring transformers, generators, high-voltage motors, capacitors, cables, arresters, and other electrical equipment can operate safely and accurately.

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Feature of UT500 Series Insulation Resistance Testers

  • Certifications: CE, UKCA
  • 2000-count LCD, overload indication, backlight
  • AC voltage measurement, auto power off
  • Auto discharge
  • Continuous low resistance measurement
  • Continuous measurements mode, red warning light, and buzzer function
  • PI and DAR measurement, auto resistivity calculation
  • Low resistance returning to zero function to improve accuracy

Specification of UT500 Series Insulation Resistance Testers

Specifications Range UT501A UT501B UT502A
Insulation resistance (Ω) Test voltages 100V/250V/500V/1000V 0%~10%
250V/500V/1000V 0%~10%
500V/1000V/2500V 0%~10%
100V 0MΩ~100MΩ ±(3%+5)
250V 0MΩ~99.9MΩ ±(3%+5) ±(3%+5)
100MΩ~5GΩ ±(5%+5) ±(5%+5)
500V 0MΩ~99.9MΩ ±(3%+5) ±(3%+5) ±(3%+5)
100MΩ~5GΩ ±(5%+5) ±(5%+5) ±(5%+5)
1000V 0MΩ~99.9MΩ ±(3%+5) ±(3%+5) ±(3%+5)
100MΩ~5GΩ ±(5%+5) ±(5%+5) ±(5%+5)
2500V 0MΩ~99.9MΩ ±(3%+5)
100MΩ~9.9GΩ ±(5%+5)
10GΩ~20GΩ ±(10%+5)
Load current 50V (R=50kΩ) 1mA 0%~10% 0%~10% 0%~10%
100V (R=100kΩ) 1mA 0%~10% 0%~10% 0%~10%
250V (R=250kΩ) 1mA 0%~10% 0%~10% 0%~10%
500V (R=500kΩ) 1mA 0%~10% 0%~10% 0%~10%
1000V (R=1MΩ) 1mA 0%~10% 0%~10% 0%~10%
2500V (R=1MΩ) 1mA 0%~10%
Short-circuit current <2mA <2mA <2mA
Low resistance (Ω) 0.01Ω~200Ω (about 5.0V/>200mA） ±(2%+3) ±(2%+3)
AC voltage (V) 30V~750V ±(2%+3)
30V~600V ±(2%+3) ±(2%+3)
Features
Display count 2000 2000 2000
DAR 60s/15s and 60s/30s √ √
PI √ √
Auto range/Low battery indication √ √ √
LCD backlight/Light alarm √ √ √
Buzzer alarm/High voltage indication √ √ √
Over load indication/Auto discharge √ √ √
Test voltage secondary display √ √ √
10MΩ internal resistance test √ √ √
Meets IEC 61557 61557-1:2007; 61557-2:2007; 61557-4:2007 (UT502A only)
General Characteristics
Power 1.5V battery (LR6) x 6
Display 70.6mm x 34mm
Product color Red and grey
Product net weight 500g
Product size 150mm x 100mm x 71mm
Standard accessories Batteries, test leads, alligator clips, gallus, test probes (UT502A)
Standard individual packing Gift box, carrying bag, English manual
Standard quantity per carton 20pcs
Standard carton measurement 500mm x 380mm x 330mm (0.063 CBM per standard carton)
Standard carton gross weight UT501A: 17.7kg; UT501B: 20.9kg; UT502A: 18.9kg

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