Copy one measurement setup from the display
Record the selected parameter, unit, filtering or cutoff setting and evaluation length. A photograph of the setup screen is welcome if the menu labels are abbreviated. Where the instrument offers different parameter definitions or standards, include the one selected. A value marked Rz on a specimen certificate is only useful for the comparison if the definition and measurement settings agree.
Identify the pickup and stylus fitted to the drive unit. If the instrument has a removable nose for small bores or a separate stand, say which arrangement your inspector uses. Include the probe and reference specimen identifiers so their results can be distinguished from the instrument serial number.
The reference specimen and the production part
If you want the tester checked on a specimen, send the specimen's marked parameter and its certificate reference. Give any required direction of traverse from its instructions. A second request to measure roughness on a machined part needs the part drawing, access to the surface and the locations to be measured. Identify that as a separate job when asking for a price.
The drawing may also call for a profile or angle at the edge of the component. That dimension belongs with the relevant measuring instrument and its own drawing tolerance.
Packing the stylus
Use the manufacturer's protector and case for a removable pickup. Keep the reference surface clear of loose screws and clamps. For a toolroom collection at IMT Manesar, identify which bench owns the specimen so it returns with the right tester.