Project Description

  • LW7120 Front View
  • LW7120 Package


  1. Small size, light weight
  2. Easy operation, botton lock
  3. Provide 5 groups memory setting, each group could choose four kinds working mode
  4. LED display, test mode is clear at glance
  5. Rising voltage gradient according to time, real-time analysis, looking for breakdown point
  6. Lower limit on current Settings, intelligent alarm
  7. Arc detection function(1-9grades)
  8. Provide remote PLC control interface
SpecificationRangeAnalysis of degreeBasic accuracy
Ac voltage endurance (ACW) /basic function of all model
Output voltage0-5(KV AC)/12(mA)0.01±2% of setting + 5V
Output frequency/waveform50 or 60Hz, ±100ppm, sine wave, the distortion degree < 2%
The current upper and lower limits setting0.1-12.009(mA)0.01±2% of setting + 2counts
Rising time, second0.1-999.9(s)0.1±0.1% + 0.05counts
Test time, second0, 0.2-999.9(s)(0=continously)0.1±0.1% + 0.05counts
Arc detection9 grades (zero is off, one is the most sensitive)
The DC withstand voltage endurance (DCW) / This function just model LW7120, LW7122
Output voltage0-6(Kvac)/5(mA)0.01±2% of setting+5V
Current setting0.02-5(mA)0.01±2% of setting+2counts
Rising time, second0.1-999.9(s)0.1±0.1% +0.05counts
Test time, second0,0.2-999.9(s)(0=continously)0.1±0.1% +0.05counts
Arc detection9 grades (zero is off, one is the most sensitive)
Other specification
Memory groups5 groups memory, 4 kinds of testing mode:W, I, W-I, I-W
Peripheral remote control, PLC interfaceProvide Pass, Fail, Processing Remote monitoring signals, Test , Stop contact
Security protectionOverload or short circuit automatically cut off the output, light and buzzer alarm
Size (WxHxD)280x89x320mm /10KG

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