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The Kikusui TOS5101 Flash Tester is a withstanding voltage tester having a high test voltage of 0 to 5 kV or 0 to 10 kV (transformer capacity: 500 VA) that allow both application of AC and DC. The use of a high luminance, large fluorescent display tube for the display enables data including measured values, status and judgment results to be extremely legible in comparison with previous models.

The pass/fail function uses a window comparator method that enables TOS5101 Flash Tester to make fail judgement of current leakage over the upper reference value and below the lower reference value set on the front panel. Thus, highly reliable testing can be performed including that for test lead disconnection and defective contact. By employing the remote control function for start and stop operations and using this function with the judgement result output function enables greater automation and efficiency of testing.


  • Key lock function and interlock function,
  • High-voltage output terminal having a narrowed insertion port,
  • Large DANGER lamp,
  • An automatic discharge function (during DC operation) that removes charge from the test piece.