DeFelsko PosiTector RTR Guide De Démarrage Rapide page 6

Cleaning Card
The probe contains two measuring surfaces that can become
contaminated with dust particles and residual tape adhesive. It is
therefore a good idea to clean the probe regularly with the included
cleaning card. Cleaning is essential prior to performing a probe
zero (pg. 6) or a verification of accuracy (pg. 5). It is best
performed when the Gage is powered down.
With the Gage powered-down, swipe the card through the opening
a few times while firmly pressing both probe buttons.
The card can also be used to clean the surfaces of analog spring
micrometers. Replacement cards are available from your dealer.
Calibration & Verification of Accuracy
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
Gage accuracy is verified using the included check shim.
Ensure that the probe has been cleaned with the included
cleaning card (above) and that the probe has been zeroed (pg. 6).
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.
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