6. SYSTEM MAINTENANCE
MVR vision metrology 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 and lubrication.
Schedule regular factory-authorized calibration and maintenance service to preserve proper
function and accuracy
.
6.1 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 cord is plugged into a grounded power source and is
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.
6.2 Weekly or Monthly Maintenance
On a weekly or monthly basis (based on experience), do the following:
Inspect the system for cleanliness. If dirty, follow cleaning instructions stated under "Cleaning."
Verify that the stage control mechanisms move freely
. If it binds, call for service. The lead
screws use a self-lubricating TFE coating, which is designed to last for the life of the product.
Do not apply any grease or other lubricant.
Check the system for calibration against a certified chrome-on-glass standard.
6.3 Zoom Optics Alignment Verification
The system’s zoom optics (if ordered) should be verified regularly to ensure accurate measure-
ment. Parfocality, parcentricity and squareness verifications are straightforward and may be
performed as often as desired. Focus is adjusted as needed by changing the distance between
the lens and the surface being viewed.
CAUTION:
While optical alignment verification may be performed by an operator,
optical alignment correction should only be performed by an authorized service
technician
.
If alignment discrepancies are found, contact Starrett or your local
Starrett representative to schedule authorized service.
6.3.1 Zoom Optics Parfocality & Focus
Parfocality
is the condition in which the video image will remain in focus as the magnification
is adjusted from highest to lowest. Starrett zoom optics are designed to maintain parfocality
throughout their magnification range.
To check parfocality, always reference a flat, sharp edge. Do not select a rough or sloping feature.
The MAG checker provided with the system is an ideal part to check parfocality.
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