Calibration & Verification Of Accuracy - DeFelsko PosiTector RTR 3D Mode D'emploi

Calibration & Verification of Accuracy
Calibration
Gage calibration is typically performed by the manufacturer or
accredited lab. All probes include a Certificate of Calibration.
Verification of Accuracy
Ensure that the probe has been cleaned with the included cleaning
card (pg. 9) and that the probe has been zeroed (pg. 10).
Verify accuracy of the digital micrometer measuring system
Place the PosiTector RTR Check Shim into the probe opening. The
average of several measurements should be within the combined
tolerance of both the Gage and the shim. If not, the Gage may need
to be returned to your dealer for service.
The check shim is specifically intended for all PosiTector RTR
probes. The Gage is designed to measure burnished replica tape
within a limited measuring range and automatically subtracts 50.8
µm (2 mils) from height measurements to account for the
incompressible polyester film. Therefore plastic shims intended for
other instruments such as coating thickness gages will not be
measured properly.
Verify the optical measuring system
Place the Peak Density Check Tape into the probe opening. The peak
density (Spd) result should be within tolerance specified on the tape.
If not, the Gage may need to be returned to your dealer for service.
Ignore the peak height (H) result when using the Peak Density Check
Tape.
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