8 System Maintenance KMR systems have been designed for years of superior service. Periodic maintenance as outlined in this section should be performed to maintain the system in peak operating condition.
• Perform a daily inspection to ensure that the system is operating correctly and that proper safety guidelines are being followed.
• Periodically verify basic optical performance.
Periodically perform cleaning.
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• Schedule regular factory-authorized calibration and maintenance service to preserve proper function and accuracy. • Replace batteries when needed for wireless mouse. Have alkaline AA batteries on hand for the mouse.
8.1 Daily Inspections
On a daily basis, inspect your system for general safety and basic functionality:
• Verify that the work area is clean, dry, and free of debris. Remove any debris or loose items from around the system and metrology stage. • Verify that the electrical power cords are plugged into a grounded power source and are unobstructed.
• Verify that temperature and humidity are within recommended ranges.
• Allow the system to warm up to normal operating temperature before performing critical parts measurements.
8.2 Weekly or Monthly Maintenance
On a weekly or monthly basis (based on experience), do the following:
• Inspect the system for cleanliness. If the system is dirty, refer to “Cleaning” later in this section for more information. • Verify that the stage control mechanisms move freely. If the stage binds, call for service. KMR lead screws use plastic nuts. Do not apply any grease or other lubricant. • Check the system for calibration against a certified chrome-on-glass standard if critical dimensions are to be measured. 8.3 Zoom Optics Alignment Verification The performance of zoom optics should be verified regularly to ensure accurate measure- ments. Parfocality, parcentricity, and squareness verifications are straightforward and can be performed as often as desired. Focus is set during normal operation by changing the distance between the lens and the surface being viewed.
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