Holiday Detectors

With the surge ahead within the electronics industry, High Voltage Porosity Detection (holiday detection / spark testing) is changing rapidly with the latest PCWI® Compact Detectors:

  • LCD's now display the actual voltage applied to the coating during testing;
  • internal voltage feedback loops monitor and hold steady that applied voltage;
  • fine voltage tuning allows operating from low volts to maximum 60kV within one unit;
  • sensitivity controls on the alarm circuit allows false results to be calibrated out; and
  • the latest refinement: - constant test current over the whole voltage range, allows the unit to test low film builds.

This new testing capability has revolutionised the porosity testing industry and the superior test method has seen the virtual demise of wet sponge testing in the industrial coatings industry in Australia.

Not only is high voltage testing faster, larger probes can be used to cover more area in the same time, even at very low voltage settings. Touch-up can be carried out immediately after testing as water is not used, and drying time is not required.

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