Glass Screens

Material

Visual Inspection Products, LLC uses satin ground glass of superior quality for all our glass charts. We can replace and size screen for any make and model comparator up to 33.0" in diameter.

Glass is typically required when:

•  The existing screen has been severely chipped or broken.
•  The lines on the existing screen have faded or worn off.
•  The new screen will remain in the comparator for an extended period of time.

Care and Cleaning

The images are very durable and will last for many years with proper care. Glass screens and charts should be cleaned ONLY with a mild soap and water solution and a soft, cotton cloth.

Window cleaners, thinners, and alcohol should never be used to clean your glass screen.

Traceability and Serialization

All glass charts are traceable to the N.I.S.T. Certification sheets specifying traceability are available at no extra cost. Glass charts are also available with serialized numbers.

Overlay Charts

Material

Overlay charts are made of plastic and are placed over the existing glass screen. They are typically required when charts are interchanged on a frequent basis. Visual Inspection Products, LLC offers 3 types of plastic overlay material:

•  .007 thick clear photograph
•  .004 thick clear photograph
•  .050 thick clear vinyl

Measuring Scales

Visual Inspection Products, LLC offers 3 types of scales:

•  Inch/decimal
•  Decimal/metric
•  Multi-magnification

The inch/decimal and decimal/metric scales are available in glass and are useful for sight verification. The multi-magnification scales are useful for direct screen measurements of projected images on a comparator that is not equipped with either digital readouts or micrometer readers.

Material

Scales are available in glass or .050 thick clear vinyl.

Traceability and Serialization

All glass scales are traceable to the N.I.S.T. Certification sheets specifying traceability are available at no extra cost. Glass scales are also available with serialized numbers.

All scales are intended for sight verification and not for comparator calibration.