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P ERATION 



CALIBRATION 



1. Mount proper size Guide Shoes and Pick-up Head on the in- 

 strument (see page 11 of this manual). 



2. Plug Headphones into Audio Plug. 



3. Turn Detection Level Potentiometer to the "0" setting 

 (Extreme counterclockwise position) . 



4. Turn the Signal Enhance Potentiometer to the "10.0" setting 

 (Extreme clockwise position) . 



5. Turn the Volume Potentiometer to the "10.0" setting (Ex- 

 treme clockwise position) . 



6. Turn on Power Switch. 



7. LED indicator above power switch should not turn on. (A 

 turned on LED indicates weak batteries. Charge or replace 

 batteries. See page 11 of this manual.) 



8. Find a rope section without flaws to be tested. 



9. Open Sense Head. Attach instrument to the rope. The instru- 

 ment is held against the rope by magnetic attraction. Close 

 Sense Head. 



10. Put on Headphones. Turn on Headphones. 



11. Move instrument by hand up and down along the flawless part 

 of the rope. Crackling or clicking sounds are usually audible. 



12. Keep moving the instrument. Increase the detection level by 

 turning the Detection Level Potentiometer in the clockwise 

 direction until crackling or clicking sounds disappear. 



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