Engine/Measuring tool/652763/652767 DETECTOR PINHOLE & HOLIDAY

An instrument for detecting and indicating the locations of pinholes and fractures in non-conductive coatings (paints, linings, films, porcelain, enamel, coal tar, asphalt, etc.) that are applied to a metal surface.  Completely transistorized, low frequency electrical pulse generator assures efficient detections with no harm to the coatings.  They also permit indirect grounding.  Output voltages are variable as desired and readable on built-in meters. Units are housed in portable dust and moisture proof PVC sturdy cases.

检测和指示非导电涂层(油漆、衬里、薄膜、瓷器、搪瓷、煤焦油、沥青等)中针孔和断裂位置的仪器。应用于金属表面。完全晶体管的低频电脉冲发生器可确保有效检测，而不会对涂层造成损害。它们还允许间接接地。输出电压可根据需要变化，并可在内置仪表上读取。设备都装在便携式防尘防潮聚氯乙烯坚固的箱子里。