Fluke 9100 Series, Руководство пользователя

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Section 9: Verifying the Model 9100 Accuracy Specification 9-1
Final Width = 215mm
9.1 About Section 9
Section 9 introduces the principles involved in verification of Model 9100 performance,
including the issue of traceability.
9.2 Need for Verification
9.2.1 Factory Calibration and Traceability
Factory calibration of the Model 9100 ensures full traceability up to and including
National Standards. Its traceable accuracy figures are quoted in the specifications given
in Section 7, and all relate to a 1-year calibration interval These figures include all
calibration uncertainties, including those of National Standards, and therefore constitute
absolute accuracies.
9.2.2 Verification on Receipt from the Factory
Each 9100 is despatched from Fluke with a Certificate of Calibration, which gives
detailed results of its pre-shipment performance. However, many organizations wish to
confim that all instruments perform within published specifications, on receipt from their
manufacturer. This not only confirms the value of their purchase, but also gives a
confident starting point for subsequent instrument use.
Such verification is only possible, however, if the user's organization is in possession of
suitable standards equipment, of the necessary traceable accuracy. In the absence of such
standards, users may rely on external support organizations to verify the 9100's accuracy,
probably also using these organizations to recalibrate the unit at appropriate intervals. For
users who wish to carry out verification or recalibration of a 9100 on-site, without having
to
ship the 9100 to a calibration laboratory, the Fluke Model 4950 Multifunction
Transfer Standard can be used automatically to calibrate and/or verify the 9100's accuracy
using the PC-based Model 4950 MTS Control Software.
9.2.3 Verification after User-Calibration
When a 9100 is calibrated against calibration standards as detailed in Section 10 of this
handbook, its pre-calibration and post-calibration performance at each calibration point can
be easily assessed as part of the calibration procedure. However, some organizations may
prefer to carry out separate pre- and post-calibration performance verifications.
Section 9 Verifying the Model 9100 Specification