DeFelsko PosiTector RTR H Gebrauchsanweisung Seite 10

Calibration & Verification of Accuracy
Calibration
Verification of Accuracy
Ensure that the probe has been cleaned with the included cleaning
card (pg. 5) and that the probe has been zeroed (pg. 8).
Place the PosiTector
The average of several measurements should be within the com-
bined tolerance of both the Gage and the shim. If not, the Gage
may need to be returned for service.
The check shim is specifically intended for all PosiTector
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 incom-
pressible polyester film. Therefore plastic shims intended for other
instruments such as coating thickness gages will not be measured
properly.
Zero
The probe should be zeroed regularly to ensure best accuracy.
The user will be prompted to zero the probe every time the Gage
is powered up. The Zero menu item allows the procedure to be
performed at more regular intervals. It is particularly useful during
long measurement sessions.
Important: Clean the probe with the included cleaning card
(pg. 5) before performing a probe zero.
1. Select Zero from the Cal Settings menu
2. Simultaneously press and hold both probe buttons firmly until
the Gage beeps and the arrows point outward. Do not place
anything in the measurement opening during this procedure.
Check Shim into the probe opening.
Cal Settings Menu
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