... channels 3. ultrasonic flaw detect 1. Big Oil and Gas Pipe and tube detection---Ultrasound 2.reach the demands of ... tube, zirconium tubes, book-walled pipe, seamless steel tubes, welded gas and oil pipelines, nonferrous metals, ferrous metals and some non ... Horizontal linearity ≤1% Strobe setting Each channel has three strobes, alarm strobe, tracking strobe, self locking strobe Marking delay split in ...