Project Description

  • LW7142 Front View


  1. Small size, light weight
  2. Easy operation, botton lock
  3. Provide 10 groups memory setting, each group could choose four kinds working mode, 3 steps
  4. 128×64 dot matrix LCD display, test mode is clear at glance
  5. Rising voltage gradient according to time, real-time analysis, looking for breakdown point
  6. Safe electrical function
  7. Lower limit on current Settings, intelligent alarm
  8. Arc detection function (1-9grades)
  9. Provide remote PLC control interface and could choose RS232/GPIB communication port
SpecificationRangeAnalysis of degreeBasic accuracy
Voltage Endurance
Output voltageAC0-5(KV)/20(mA)0.01±(2% of setting+5V)
DC0-6(KV)/7.5(mA) (modeLW-7130)
Output frequency/waveform50 or 60Hz, ±100ppm, sine wave, the distortion degree < 2%
The current upper limits settingAC0.1-12.009(mA)0.01±(2% of setting+2counts)
DC0-7500(Aµ) (only LW-7130)1
The current lower limits settingAC0.1-9.999(mA)0.01±(2% of setting+2counts)
DC0-999.9(Aµ) (only LW-7130)1
Rising time, second0.1-999.9(s)0.1±(0.1% +0.05counts)
Down time, secondAC:0-999.9(s), DC:1-999.9(s)0.1±(0.1% +0.05counts)
Test time, second0,0.3-999.9(s)(0=continously)0.1±(0.1% +0.05counts)
Arc detection9 grades (zero is off, one is the most sensitive)
Insulation resistance(IR)  this function just for model LW-7142
Output voltage0.1-1(KV DC)0.01±(2% of setting+5V)
Insulation resistance limit0-9999(MΩ) (zero is off)1±(2% of setting+2C.) ≥ 500vdc
Insulation resistance lower limit1-2000(MΩ)1±(5% of setting+2C.) < 500vdc
Test time, second0,0.5-999.9(s) (0=continously)0.1±(0.1% +0.05counts)
Other specification
Memory groups10 groups of memory, 4kinds testing mode:W, I, W-I, I-W, each group could continuously testing 3 steps
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
Display128×64 dot matrix LCD display
Size (WxHxD)280X89x370mm/10KG

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