8/19/03
910-198E
Model 8500
Page 8-5
DEFINITIONS
Measurable
Materials:
Any nonferrous (not magnetically permeable)
or composite material that is hard enough to
withstand deformation by the probe or target
ball. The material must have a minimum
outside concave radius of 0.062" (1.59mm) at
the point of measurement and a minimum
inside concave radius no less than:
0.031" (0.79mm) with a 1/16" ball
0.062" (1.59mm) with 1/8" ball
0.94" (2.38mm) with a 3/16" ball
Basic Accuracy:
The difference between the actual thickness
and display thickness shall be less than the
specified basic accuracy amount if calibrated
(see Section 2.3–Ball Calibration). Basic
Accuracy is expressed as a percent of reading
plus a fixed amount.
Multi-Point Accuracy:
The difference between the actual thickness
and display thickness shall be less than the
specified Multi-Point accuracy if calibrated
(see Section 2.4–Multi-Point Calibration).
Multi-Point Accuracy is expressed as a
percent of reading plus a fixed amount.
Effective Resolution:
The actual attainable measurement resolution
may be limited to an amount greater than a
least significant display digit.
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