Fluke RUSKA 7252, User Manual

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RUSKA 7252
Users Manual
A-4
Table A-2. Uncertainty Analysis for RUSKA 7252i — One Year Analysis
Uncertainty Analysis — One Year Calibration Interval
RUSKA 7252i from 5% to 100% of Range
Uncertainty
(2 sigma)
A. Performance — (Linearity, Hysteresis, Repeatability and Temperature) 0.005% of Reading
B. Stability — (1 year) 0.0075% of Reading / year
C. Calibration Standard — (RUSKA 2465 DWG) 0.0010% of Reading
D. Environmental —
Temperature (Included in A. above) 0.000% of Reading
Head Pressure 0.001% of Reading
Control — (in Passive Control Mode) 0.000% of Reading
2 sigma Expanded Uncertainty (RSS) 0.009% of Reading per year
The following two tables are uncertainty analysis examples for a single range
RUSKA 7252 based on a three month and a yearly calibration.
Table A-3. Uncertainty Analysis for RUSKA 7252 — Three Month Analysis
Uncertainty Analysis — 3 Month Calibration Interval
RUSKA 7252
Uncertainty
(2 sigma)
A. Performance — (Linearity, Hysteresis, Repeatability and
Temperature) 0.003% of Full Scale
B. Stability — (3 months) 0.0019% of Reading per 90 days
C. Calibration Standard — (RUSKA 2465 DWG) 0.0010% of Reading
D. Environmental —
Temperature (Included in A. above) 0.000% of Reading
Head Pressure 0.001% of Reading
Control — (in Active Control Mode) 0.001% of Full Scale
2 sigma Expanded Uncertainty (RSS) 0.0032% of Full Scale RSS with
0.0024% of Reading per 3 months