Mitutoyo BM1 Series - Page 7

3
No. 99MAK004B
■ Example of conventions use
Indicates an operating
procedure to be performed
or its outline.
15
No. 99MAK004B
2 How to Use Gauge Blocks
4 Wring the 30 mm Gauge Block and other Gauge Blocks together in order of thickness.
Tips
When wringing a thin Gauge Block, check the state of the measurement surface of
the thin Gauge Block by placing on the optical at.
For details about wringing, see
"2.2 Wringing" (page 16).
5 Perform thermal stabilization.
6 Use as a reference gage.
Example of comparative
measurement
Example of zero-setting for a
measuring tool
37.785
37.793
Workpiece
Reference gage (wrung Gauge Blocks)
Measuring tool
Wrung Gauge Blocks
■ Disassembly
1 Disengaging the wringing
1 Rotate the wrung Gauge Blocks until they form
a cross shape.
2 Slide the Gauge Blocks to detach them.
2 Wipe any dirt o󰀨 the Gauge Blocks.
Tips
For details about cleaning, see " Cleaning" (page 19).
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.
Indicates supplementary
information.
Indicates the action resulted
from some operation(s).
Indicates specic work
procedures.
Indicates the referential
location.