Starrett 2000-24 Altissimo Electronic Height Gage - Manual (Page 9)

Measuring - Center
Starrett Altissimo Operation Manual Page 8 CAT 2000-24
Center Measuring Mode : The Center Mode can be used to measure the Center of a Bore, Slot or Rib. Press the
CTR Key to the right of the Display to enter this mode. After probing points on opposite sides of the Feature the
Altissimo automatically calculates and displays the Center of the Feature.
The Display will request Point 1 (Pt 1). Locate the probe approximately in the center of the Feature to be measured.
Using the Coarse Adjuster Knob, bring the Probe into contact with either the lower or upper surface of the Feature to
be measured until the tool Beeps. The display will request a second point (Pt 2). Without moving the part or the tool,
bring the Probe into contact with the opposite surface of the Feature until the tool Beeps. Move the Probe clear of
the surface.
Note: If measuring a Rib it will be necessary to move the part or the tool to probe the opposite side. Care should be
taken to reposition the probe as close as possible to the point opposite the first point.
The display will show the distance between the Datum and the Center of the Feature. Press the Hot Key on the Base
or the F5 Key on the Display to switch the measured value between the Center and the Distance Between Last Two
Points. If you have measured more than one feature the Display will show a third Icon, Distance to Last Feature.
In Figure 16 and 17:
Point 1 is taken, the Tool requests Point 2 (Pt 2).
Point 2 is taken, the Center Value is 5.0000, the Center Icon is on, Distance Between Points Icon is flashing.
Point 3 is taken, the Tool requests Point 2 (Pt 2).
Point 4 is taken, the Center Value is 7.0000, the Center Icon is on, the Distance Between Points Icon and
the Distance Between Feature Icon are flashing.
Press the HOT Key to toggle between the Center, the Distance Between Points and the Distance Between Features
Values. The Active Value is the Icon that is Flashing.
Note: The Distance Between Points is used to measure the Slot Width (distance between points 3 and 4). In the case
of measuring a Circle (points 1 and 2) the value is meaningless since it is unlikely that the measurement will be
taken in the exact center of the Hole.