1.0 General Information 



TM 

 The MAGNOGRAPH non-destructive wire rope tester uses 



Hall Effect Sensors and a strong static magnetic field 



to measure wear and breakdown of wire ropes. It will 



test ropes of any construction from 1/2 to 2 1/2 inches 



(12-64mm) in diameter at speeds from to 600 ft./min. 



(0-3 m./s.) 



The instrument gives simultaneous readings of a rope's 

 metallic cross-sectional area and of localized faults 

 such as broken wires, wire ends, wire, nicks and corros- 

 ion. 



The Magnograph consists of three major parts: 



1) The Sensing Head - through which the rope is passed 



and which does the basic detect- 

 ion of the fault. 



2) The Electronic Control Section - 



which processes the Sensor Head 

 signals and records the test on 

 magnetic tape . 



3) The Recorder Section - 



which provides a strip chart 

 visual representation of the 

 rope test. 



The complete Magnograph instrument, model Mag-1, is 

 shown in Fig. 1.0. 



A- 2 



