Checkline AT-VERIFY - Manual (Page 3)

The PosiTest AT Verifier includes a Certificate of Calibration for the SSI device and
one for the load cell. For information on returning your PosiTest AT Verifier for
recertification, contact DeFelsko or your local dealer.
The PosiTest AT Verifier, with a valid Certificate of Calibration, can be used to check
the accuracy of PosiTest Adhesion Testers. A sample Certificate of Accuracy is
included.
The SSI device comes pre-configured for verification of PosiTest AT-M and AT-A
pull-off adhesion testers. No additional configuration is required or recommended.
If the SSI is mistakenly altered, configuration can be restored by following the
steps outlined in our Reconfiguration Guide. Contact DeFelsko for more
information.
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When verifying PosiTest AT Adhesion Tester accuracy, it is recommended that
several verification points be tested. See the included Sample Certificate of
Accuracy for recommended verification points.
Test results should fall within the combined accuracy of the PosiTest AT Adhesion
Tester (+ 30 psi full scale) and PosiTest AT Verifier (pg. 4).
The included Measurement Uncertainty Worksheet and Sample Certificate of
Accuracy documents have been pre-populated with data unique to your PosiTest
AT Verifier.
If any of the verification points are outside of these combined accuracies, the
PosiTest AT may require recalibration. Contact DeFelsko or your local dealer for
information on returning your adhesion tester for recalibration.
Verification of Test Results Verification of Test Results
Reconfiguring the SSI Device Reconfiguring the SSI Device
Certification Certification