DeFelsko PosiTector UTG Guide Rapide page 7

mode). Switching the Gage to single-echo SE Mode (see pg. 10)
will also help produce a steel-only thickness measurement (UTG
M only).
Calibration, Verification and Adjustment
Three steps ensure best accuracy...
1. Calibration - typically performed by the manufacturer or a
qualified lab. All probes include a Certificate of Calibration.
2. Verification of Accuracy - as performed by the user on
known reference standards such as calibration step blocks.
3. Adjustment - to a known thickness or sound velocity for the
material to be measured.
Calibration
Calibration is the controlled and documented process of measuring
traceable calibration standards and verifying that the results are
within the stated accuracy of the Gage. Calibrations are typically
performed by the Gage manufacturer or by a certified calibration
laboratory in a controlled environment using a documented process.
Verification
Gage accuracy can and should be verified using known reference
standards of the material to be tested.
Verification is an accuracy check performed by the user using
known reference standards. A successful verification requires the
Gage to read within the combined accuracy of the Gage and the
reference standards.
Adjustment
Adjustment, or Calibration Adjustment is the act of aligning the
Gage's thickness readings to match that of a known reference
sample. See Calibration Adjustment pg. 7.
6