ACU-RITE 300S READOUTS - Manual (Page 68)

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ing Specific Oper
ations
8 Press the DOWN arrow key to advance to the Z axis.
8 Touch the workpiece surface at point 2.
8 Enter the position of the tool tip (Z= 0) for the Z coordinate of
the datum.
8 Press ENTER.
Setting Datums using LOCK AXIS Function
The LOCK AXIS function is useful for setting a datum when a tool is
under load and the diameter of the workpiece is not known.
To use the LOCK AXIS function:
8 Press the DATUM soft key. The cursor will be in the DATUM
NUMBER field.
8 Enter the datum number and press the DOWN arrow key to go to
the X axis field.
8 Turn a diameter in the X axis.
8 Press the LOCK AXIS soft key while the tool is still cutting.
8 Retract from the current position.
8 Turn the spindle off and measure the workpiece diameter.
8 Enter the measured diameter, for example, 1.5” and press ENTER.