Mitutoyo BM1 Series - Page 17

13
No. 99MAK004B
2 How to Use Gauge Blocks
2 Gently place the optical at on the measurement surface
of the Gauge Block.
IMPORTANT
Place the optical at on the measurement surface of
the Gauge Block so that the arrow printed on the side
of the optical at points downward.
3 Lightly slide the optical at.
» If interference fringes appear: Proceed to step 4.
» If interference fringes do not appear: Burrs exist; proceed to step 2 .
Tips
Interference fringes may not appear if the surfaces were not wiped su󰀩ciently or
if paper bers are present on the surface. In this case, wipe the surfaces again,
and then repeat from step 2.
4 Lightly hold down the optical at.
» If interference fringes do not appear: No burrs exist;
proceed to step
3 .
» If interference fringes partially appear: Burrs exist;
proceed to step
2 .
Tips
If interference fringes partially appear, slide the optical at slightly. If the inter-
ference fringes move with the optical at, it means that there are burrs on the
optical at, and not on the Gauge Block. Use a new optical at.