Does anybody have experience in calibrating a High Frequency Generator Tester for Leak Detection? We have an Electro Technic Products Model BD-60 (2,000-40,000 @ 1/2 Megahertz Frequency) that is used to detect pin holes in our Pressure Vessels interior lining. My question has to do with the Calibrator we purchased to determine the proper spark length (gap). We will be, undoubtably, be questioned on the calibration of this device by our future Registrar Auditor. The instructions that came with the Calibrator has caused me some concern as to the proper method for determining the actual voltage applied to the coated surface. Any help will be appreciated. I figure I would try here before getting into it with the Manufacturer. You know, practical hands-on experience?