Holiday Detectors
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PCWI Compact DC High Voltage Holiday Detectors are light-weight, fully-portable DC holiday detectors for the detection of pinholes, air bubbles, and porosity in non-conductive coatings on conductive substrates, including concrete. PCWI High-Voltage Holiday Detectors are suitable for pinhole detection in coatings up to 300 mils on pipelines, storage tanks, valves, and many other structures. PCWI DC Holiday Detectors come in two voltage ranges: DC15 to 15kV, DC30 to 30kV.
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The PCWI COMPACT PULSE HIGH-VOLTAGE HOLIDAY DETECTOR is a light-weight, fully portable high-voltage holiday detector with regulated pulsed output for detection of pinholes in dielectric coatings on conductive substrates, including concrete. The PCWI Pulsed Holiday Detector is ideal for holiday detection in moist conditions, on wet or contaminated coating surfaces, or in coatings likely to become electrostatically charged, such as plastic or fiberglass-type coatings. PCWI Pulsed Holiday Detectors come in three models: P20 (2 - 20 kV) and P40 (5 - 40kV) models are used to detect pinholes, air bubbles, or porosity of carbon-impregnated coatings such as carbonated rubber, thick coatings such as rubber linings. The Pulse 50 model generates 10 - 50 kV and is for use on Rubber Coatings only.
Holiday Detectors are commonly referred to as porosity detectors, spark testers, or jeepers.
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PCWI LOW VOLTAGE HOLIDAY DETECTOR, popularly called a Thin Film Holiday Detector, Pinhole Tester, or Wet Sponge Tester, uses the Wet Sponge Method to detect pinholes or flaws in coatings of up to 20 mils thickness. PCWI Wet Sponge Tester features a large sponge and telescoping handle in 3-Voltage selectable and single voltage models.
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Tinker & Rasor Model M/1 Low Voltage Porosity Detector features regulated 67.5 v DC output voltage to locate pinholes in thin film coatings up to 20 mils thickness using the Wet Sponge Method in accordance with NACE RP0188. M-1 is available as a battery-operated unit for coatings inspection in the field, or as AC-supplied M1/AC for use where standard AC electrical supply is available.
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Tinker & Rasor APS High-Voltage Holiday Detector is a stick-type pinhole detector featuring pulsed DC output ranging from 800 to 35,000 volts. Trigger-release safety-switch instantly shuts the instrument down, eliminating power-on when unattended. Audible and visual pinhole indicators, weather and dust-sealed voltage selector, high and low voltage ranges are key features of the APS porosity detector.
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