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OPERATION 



8. Put on Headphones. Turn on Headphones. 



9. Holding instrument so that it cannot move, run rope at in- 

 spection speed. 



10. If crackling or clicking sounds are audible, stop rope and 

 visually search for flaws. Flaws can be located by moving 

 instrument manually up and down along the rope and listen- 

 ing to sounds in the headphones. 



11. Mark position of flaw for later reference. 



Permanent Record: 



If a permanent record of the rope condition is desired, a two 

 channel strip chart recorder can be used as follows: 



1. Connect first channel of Strip Chart Recorder to Audio Jack. 



2. Connect second channel of Strip Chart Recorder to Record Jack. 

 3- Turn Detection Level Potentiometer to calibrated setting. 



4. Turn Volume Potentiometer to 10.0 setting. 



5. Turn Signal Enhance Potentiometer to 10.0 setting. 



6. Lock Potentiometers. 



7. Turn on Instrument Power Switch. 



8. Open Sense Head. Attach instrument to rope. Close Sense Head. 



26 



