Verify a pinhole-free coating using the DE Stearns high voltage holiday detector. The portable, transitorized detector uses a charged electrode and a ground wire (attached to the uncoated substrate) to complete a circuit and produce an audible signal and spark indicating a pinhole or flaw in the coating. The tester is suitable for use on any nonconductive coating applied to a conductive substrate. The device operates using a power pack and produces a spark upon detection. It is not intrinsically safe. The Model 14/20 has 20 settings (1,000 to 14,000 volts). The applied voltage is typically 100-125 volts per mil, however the coating manufacturer should be consulted for the recommended voltage setting. The detector is sold complete with a power pack, charger, 20 foot ground cable, carrying strap, output cable and 18" wand and comes in a rugged storage case. Various sizes of silicone rubber and wire brush electrodes available for separate purchase. The detector conforms to ASTM D5162. Rental units also available. See "Rentals" on the Home Page. Made in the USA.
Manufacturer: DE Stearns