Mitutoyo TM-500 Series Uživatelský manuál stáhnout pdf (Strana 17)

(2) Centering the reticle

1䋮 Place a small workpiece on the stage glass. Turn the Micrometer Heads to align an edge of the

workpiece with the center of the cross-hair.

2䋮 Rotate the angle scale disc 180q and read the displacement between the edge of the workpiece

and the center of the cross-hair.

3䋮 Remove the four screws from the angle dial cover and dismount it. Slightly loosen the four fixing

screws.

4䋮 Adjust the eyepiece mount position with the four adjustment screws to minimize the

displacement between the edge of the workpiece and the center of the cross-hair. Centering is

easily performed by moving the eyepiece mount by half the displacement in both the X and Y

directions.

Two pairs of adjustment screws are located at the opposite sides (for adjusting the X and Y

displacements). Adjust the screws in pairs. Loosen one on one side, and then tighten its counterpart

on the other side to adjust the displacement.

5䋮 Turn the Micrometer Heads to align an edge of the workpiece with the center of the cross-hair.

Rotate the angle dial 180q and check the displacement.

6䋮 Repeat steps 1, 2, 4, 5 until the displacement is within 3μm.

7䋮 Confirm that the four adjustment screws are fully tightened.

8䋮 Tighten the four fixing screws and replace the angle dial cover.

1㧚 2㧚 4㧚

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Small workpiece

2. Installation and setup

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Mitutoyo TM-500 Series Uživatelský manuál Strana 17