Programmable AC Ground Resistance Tester

  • Small volume, lightweight
  • Remarkable linear constant current output, current output range can be up to 30 ~ 40 A
  • Simple operation, essential lock function
  • Provide 5 set of memory set
  • LCD display
  • Test line impedance self zero correction, ensure accuracy of test results
  • Resistance upper and lower limit set, intelligent alarm
  • Provide remote PLC control interface
SKU: LW7303 Category: Tag:
Model 7303
Output current 3.0~30.0 (A)
Output voltage 6V. MAX
Output frequency 50 or 60 Hz, ±100 ppm
Output waveform Sine wave, distortion (THD) < 2%, Crest Factor (Crest Factor) = 1.3 ~ 1.5
Resistance setting range 0~510(mΩ) 0~120(mΩ)
Corresponding current output 3.0~10.0(A) 10.0~30.0(A)
Resistance resolution 1 mΩ
Test time (s) 0, 0.5 – 999.9 (s) (0 = continuous)
Judgment accuracy ±(2% of setting +2 counts)
Voltage set 0.00~6.00 V
Test mode four-wire measurement
Memory 5groups memory
Key Lock To prevent any unauthorized operators from arbitrarily changing the parameter
Peripheral remote control, PLC interface Provide Pass, Fail, processing remote monitoring signals and the TEST, STOP contact
Protection Overload, Open circuit automatically cuts off the output, light, and buzzer alarm
Display 16’ × 2’  LCD display
Dimension 280×89×370 mm
Weight 10kg


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