Backward 



n 



n 



Forward 



Fig. 4.11 Yard/Meter Marks. 



The 50 and 100 y/m marks are .^^=6: recorded on tape as the 

 y/m marks are and are used to locate distance along the 

 rope from the beginning of the test. 



4.6 Running a Chart Record From Tape 



Rope testing can be done without the Chart Recorder and 

 the information can be recorded on tape only. Conversely 

 a tape recording of a rope test is not essential but 

 foirms a convenient way of storing rope data, and allows 

 replay of the rope test for further investigation. 



When a tape is made of a rope test the LMA, LF and yard 

 or meter marks are recorded on the tape. This allows a 

 further investigation of the test using increased chart 

 speed or sensitivity. When a test is underway, areas of 

 the rope that warrant further information should be in- 

 dicated with the tape counter number so that they can be 

 located on the tape afterwards.* The tape counter will 

 help to locate the area of the fault on the tape, but 

 will not pinpoint it exactly as there is some slippage 

 in the tape transport. 



Note - Do not allow tapes to come close to sensor head 

 as the strong magnetic field will erase them. 



A-35 



