149 a:4:{s:8:"template";a:1:{s:27:"Work Instruction-print.html";b:1;}s:9:"timestamp";i:1363587160;s:7:"expires";i:1363590760;s:13:"cache_serials";a:0:{}}WI Q019 - Using the Profilometer


Created Modified Rev. Changed by Change
08/09/05 08/12/05 1 Mathias Document System Change



The profilometer is a very sensitive piece of equipment, and should be handled with caution. The thre switches on the top of the profilometer should be set to Ra, Min and 5. Ste the profilometer on the part to be check so that the arm touches the part, but is not all the way up. Push the button on the top. The arm will slide back then out again and a number will appear. This number is the surface finish in micro inches. To test the accuracy of the profilometer use the block in the box and repeat the instruction above. The number on the profilometer should match the number on the back side of the calibration box.