Mitutoyo TM-500 Series, User Manual

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3. M
easurement
24
3.2.3 Template matching inspection
This Measuring Microscope allows inspection of screw threads and involute gear teeth using the
optional template reticles.
㩷
To perform template matching inspection, set the appropriate optional template reticle according to
the procedure in
"3.1.5 Replacing the reticl
e".
For information about the various template reticles, see
"7. Optional Accessorie
s".
3.2.4 Step measurement
Stepped dimensions can be measured using the optional height measurement attachment and a dial
indicator.
CAUTION
This measurement is performed by bringing the measuring faces in focus. A high-precision
measurement cannot be made if using a lens with a large depth of focus. To obtain high-accuracy
measurements, use a high-magnification lens with a shallow depth of focus, as shown below.
䃂
3
0x
lens with a depth of focus of approximate 0.12mm
䃂
15
0x
lens with a depth of focus of approximate 0.02mm
Attach the height measurement attachment to the top face of the column as shown in the figure below.
Use a gauge block that is appropriate for the optical tube position.
Dial indicator
Mounting screw
Height measurement attachment
Gauge block
Column