DeFelsko PosiTest AT-A Manuel D'instructions page 17

Verification
The PosiTest AT Verifier is available for verifying the accuracy
and operation of PosiTest Adhesion Testers and is an important
component in fulfilling both ISO and in-house quality control
requirements. Fully portable with hardshell carry case for use in
the field or laboratory. Learn more at: www.defelsko.com/at/verifier
Conforms to: ASTM D4541, ASTM D7234, ISO 4624 and others.
Specifications:
Resolution: 1 psi (0.01 MPa)
Dolly Size (mm)
The instrument also measures in N/mm
force). See Units (pg. 11).
Technical Data
10 mm
14 mm
20 mm
50 mm*
*requires the use of a 50 mm stand off
Accuracy: ±1% Full Scale
Max Pull-Off
Pressure (AT-A)
14,000 psi (96 MPa)
7,000 psi (50 MPa)
3,500 psi (24 MPa)
560 psi (3.8 MPa)
and Newtons (unit of
2
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