Spi 40-092-9 Optical Comparator Chart Reticle 1 in 7x

Product Description

The SPI 40-092-9 is an optical comparator chart and reticle designed for use with 7x magnification comparator systems. This precision measurement accessory mounts inside the optical comparator eyepiece or stage and provides a graduated reference overlay for dimensional inspection and part comparison. It measures 1 inch in diameter, making it compatible with standard comparator eyepiece formats. Metrology technicians and quality control professionals use this reticle to verify part geometry, check radii, and confirm dimensional tolerances against a known reference scale during inspection routines.

This chart and reticle is suited for use in quality control labs, machine shops, and manufacturing environments where optical comparators are part of the standard inspection workflow. It is designed specifically for 7x magnification systems, making it appropriate for inspecting small-diameter features, threads, and profiles that require a moderate magnification overlay reference. Technicians performing incoming inspection, in-process checks, or final part approval will find this reticle fits standard single-eyepiece comparator setups.

Key Features

• Designed for 7x magnification optical comparator systems
• 1 inch overall diameter fits standard comparator eyepiece formats
• Provides dimensional reference overlay for part geometry inspection
• Supports thread, radius, and profile comparison measurements
• Sold individually as a single-unit package

Compatibility

Designed for use with optical comparators operating at 7x magnification that accept a 1-inch diameter chart or reticle insert. Confirm eyepiece and stage specifications on your comparator before installation.

Installation Notes

Installation is typically performed by a metrology technician or qualified QC professional. Before inserting or replacing the reticle, ensure the comparator is powered down and the optical path is clear of any workpieces or fixtures. Handle the reticle by its outer edge to avoid contaminating the optical surface. Consult the comparator manufacturer documentation for correct seating depth and orientation of the reticle within the eyepiece.