www
.
insize
com
ISHW
WEBSTER HARDNESS TESTER
OPERATION MANUAL
MN ISHW
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-E
Страница 1: ...www insize com ISHW WEBSTER HARDNESS TESTER OPERATION MANUAL MN ISHW E...
Страница 2: ...ndentations should be greater than 6mm The surface of the workpiece must be vertical to the indenter The back side of specimen must be in good contact with the anvil Dirty workpiece will result in ina...
Страница 3: ...nt nut counterclockwise otherwise rotate the adjustment nut clockwise When the nut is rotated 30o to 45o the reading will change by 1unit Reassemble the tester and verify the tester both on the test b...
Страница 4: ...ler than 20 the adjustment screw should be regulated clockwise if the reading is greater than 20 the adjustment screw should be regulated anticlockwise If the pointer can not be set to 1 Verification...
