Starrett 2000-24 Altissimo Electronic Height Gage - Manual (Page 14)

Setup Mode (Cont.)
Starrett Altissimo Operation Manual Page 13 CAT 2000-24
Probe Diameter Calibration (Preset): This is the alternate mode for calibrating the probe diameter using a
Calibration Block with a known Block Size such as a Gage Block. This could be either an ID or OD Measurement.
Press the SETUP Key twice and the Probe Calibration Mode Icon will light. A Preset Value will be displayed. If the
value is correct Press Undo and begin measuring. If the value is 0 or not correct use the F1- F4 keys to adjust the
Preset and Press the F5 key (

) to accept the Value.
Position the Calibration Block under the Probe. Using the Coarse Adjuster Knob move the probe down onto the
Upper Measuring Surface until the tool beeps. Move the Probe clear of the surface. The display will indicate the first
point is taken and request a second point. Similarly measure the Lower Measuring Surface of the Calibration Block.
Measure the Upper and Lower Measuring Surface a second time.
Note: The first and second measurements must be taken in opposite directions and the third and fourth
measurements must also be taken in opposite directions. Best results will be achieved when the points are taken on
the upper and lower surface alternately. (See Figure 30)
Accept the Calibration - After measuring each surface twice, the Altissimo will display a number which is the
Deviation of the Probe Calibration. The deviation is the repeatability of the points taken during Probe Calibration.
This provides a measure of the quality of the measurements. If the Deviation is sufficiently low, under .0002” (.004
mm), then Press the F5 Key (

) to accept the value. (See Figure 31)
Note: If the Deviation is high, over .0002” (.004 mm), then check the tightness of the Probe Arm and Probe. Check
the cleanliness of the Probe Tip and Calibration Block. Make sure that the Probe and Belt Locks are fully unlocked.
Then recalibrate the Probe.
Important: The Altissimo will store the Calibrated Probe Diameter even after it is turned off. The probe must be
recalibrated each time it is changed or repositioned.