DeFelsko PosiTector 200 v.3.1 Full Manual User Manual

Page 9

Calibration, Verification and Adjustment

Three steps ensure best accuracy…

1.Calibration - typically done by the manufacturer. All probes

include a Certificate of Calibration.

2.Verification of Accuracy - typically done by the user on known

reference standards such as plastic shims or coated thickness
standards.

3.Adjustment - to a known thickness

Calibration

Calibration is the high-level, controlled and documented process
of measuring traceable calibration standards over the full
operating range of the probe, and verifying that the results are
within the stated accuracy of the probe. Calibrations are
performed by the manufacturer, their authorized agent, or by an
accredited calibration laboratory in a controlled environment using
a documented process.

Verification

Verification is an accuracy check performed by the user on known
reference standards. A successful verification requires the Gage
to read within the combined accuracy of the probe and the
reference standards.

Adjustment

Adjustment, or Cal Adjustment, is the physical act of aligning the
probe’s thickness readings to match those of a known thickness
sample (removal of bias) in order to improve the accuracy of the
probe on a specific coating. See

Thickness pg. 12.