Checkline PT-RTR - Manual (Page 11)

8
Verification of Accuracy
Gage accuracy is verified using the included check shim.
Ensure that the probe has been cleaned with the included
cleaning card and that the probe has been zeroed (pg. 10).
Place the check shim into the measurement 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 the PosiTector RTR.
The Gage is designed to measure burnished replica tape within a
limited measuring range and automatically subtracts 50.8 μm
(2 mil) 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.
Calibration
Gage calibration is typically performed by the manufacturer or
accredited lab. All probes include a Certificate of Calibration.
Calibration & Verification of Accuracy Calibration & Verification of Accuracy