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6. SYSTEM
MAINTENANCE
Your Starrett AV Series CNC Vision Metrology System is designed for years of superior service.
Periodic maintenance outlined in this section should be performed regularly to maintain the
system in peak operating condition.
Daily inspection should be performed to ensure that proper safety guidelines are followed and
that the system is operating correctly.
Basic optical parameters should be verified periodically.
Cleaning and lubrication should be ongoing for proper mechanical and optical operation.
Lenses, bulbs and fuses should be maintained and replaced as needed.
Regular factory-authorized calibration and maintenance service should be scheduled to
preserve proper function and accuracy.
6.1 Daily
Inspections
On a daily basis, the system should be inspected for general safety issues and basic functionality:
Inspect the area around the system for proper clearance.
Remove any debris or loose items from around the system and the metrology stage.
Verify that the work area is clean, dry and free of debris.
Verify that the electrical power cord is plugged into a grounded power source and is
unobstructed.
Verify that the environmental conditions (temperature and humidity) are within recommended
ranges.
Allow the system to warm up to normal operating temperature before performing critical part
measurements.
Verify that the stage control mechanisms move freely. On CNC Systems, verify through the
software that the zoom mechanism also operates freely.
6.2 Optical Alignment Verification
The system’s optical alignment should be verified regularly to ensure accurate measurement.
Parfocality, Parcentricity and Squareness verification is straightforward and may be performed as
often as desired.
NOTE:
Optical alignment verification may be performed by any qualified operator.
However, optical alignment correction should only be performed by an authorized
technician. Report any observed alignment discrepancies and contact the factory or
your local representative to schedule authorized service.
6.2.1 Parfocality & Focus
Parfocality is the condition in which the video image remains in focus as the magnification is
adjusted from highest to lowest. Starrett zoom optics are designed to maintain parfocality through-
out the available magnification range.
Focus, as described in the Operation section, is adjusted by means of adjusting the Z-axis posi-
tion of the optical system. Therefore, in order to properly inspect parfocality, always reference a
flat, sharp edge. Do not select a rough or sloping feature. Starrett’s MAG checker is provided with
the system and is an ideal part to use in parfocality inspection.
