Starrett Manual Digital Video System MVR200

Work area is clean, dry, and free of debris

Debris or loose items removed from around the system and metrology stage

Electrical power cord is plugged into a grounded power source and is unobstructed

System warmed up to normal operating temperature before performing critical parts measurements

Sign off on the daily inspection

Parcentricity describes the condition wherein a feature will remain at the optical center of the video image throughout the magnification range. Like parfocality, parcentricity requires that the feature be first located at highest magnification.

Is the mag checker or other suitable inspection part placed and secured on the stage?

Is the crosshair image tool selected and verified at its defined center position?

Is the crosshair centered on the X-Y axis of the calibration standard (or another suitable feature if the standard is not used) at low magnification?

Is the image refocused at high magnification?

Is the stage position adjusted as needed to recenter the crosshair on the feature?

Does the feature remain at the center of the crosshair as the magnification is lowered?

Report any observed discrepancy

If the error is verified, contact your Starrett representative for authorized service.

• The MVR system should be kept in a clean environment, away from dirt, dust, oil, and debris which could affect system performance or degrade the system’s mechanical and electronic parts. If a clean environment is not available, the machine should be kept as clean and protected as is possible. In harsh environments, preventive maintenance and factory service should be scheduled more frequently to keep the system in top working order.

WARNING! Never pour fluid on the system when cleaning. Do not over-wet cleaning cloth. Excessive moisture can seep into mechanical or electrical parts, damage the equipment and possibly cause an electrical short circuit and physical injury. As a precaution, unplug the system before cleaning. Always unplug the system before using any flammable cleaning fluid.

Wipe down the system with a clean, lint-free cloth moistened (not wet) with plain water or Simple Green® regularly to remove any external dust or dirt. Never wipe down with acetone or other harsh solvents, which can damage painted or plastic surfaces. Isopropyl alcohol can be used to clean surface contaminants where Simple Green proves ineffective.

• Most critical components are covered and require no user service. If the stage mechanics require service, contact your Starrett representative.

CAUTION! Do not touch lens surfaces with your fingertips. Fingerprints can destroy optical coatings over time. Only clean optical surfaces with proper cleaning supplies, and then only when necessary.

To clean the lens, refer to the following guidelines:

• If a lens is covered with loose dust, do the following:

Inspect the system for cleanliness.

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.

Sign off on the weekly manual digital video system maintenance

Calibration should be verified periodically depending on user requirements and system usage and should be performed at least monthly.

A calibration verification standard artifact is available from Starrett authorized distributors or directly from the Starrett service department.

Calibration should also be verified after the system has been serviced or moved.

The following is a brief description of the steps recommended for the verification of your machine.

Place the calibrated verification standard in one the six positions on the glass stage as illustrated in the previous figure.

Secure the standard with hot melt glue or other suitable retaining method so that stage translation cannot move the standard under any condition.

Skew the center of the two end circles. Refer to the MetLogix M3 User Guide for proper alignment procedures.

Measure the distance between the 1st and 2nd fiducials.

Measure the distance between the 1st and 3rd fiducials.