5700A/5720A Series II
Operators Manual
D-2
calibration check
A fast, simple, automated procedure to provide added confidence between calibration
recalls, and data that can be used to develop a history of the calibrator’s performance
between calibrations. No changes are made to stored constants, and the internal check
standards are used as the reference points instead of external standards as in the routine
calibration procedure.
calibrate
To compare a measurement system or device of unknown accuracy to a measurement
system or device of known and greater accuracy to detect or correct any variation from
required performance of the unverified measurement system or device.
calibration
The comparison of a measurement system or device of unknown accuracy to a
measurement system or device of known and greater accuracy to detect or correct any
variation from required performance of the unverified measurement system or device.
calibration constant
A correction factor that is applied manually or automatically to correct the output or
reading of an instrument.
calibration curve
A smooth curve drawn through a graph of calibration points.
calibration interval
The interval after which calibration must occur to maintain the performance of an
instrument as stated in its specifications.
calibration report
A record of uncertainty and/or correction factors for an instrument as determined during
calibration.
calibrator
A device that supplies outputs with a known uncertainty for use in checking the accuracy
of measurement devices.
check standard
A device used solely to verify the integrity of another standard. For example in the
5700A/5720A Series II calibrator, one Fluke RMS sensor continuously monitors the
output voltage while a second Fluke RMS sensor confirms the integrity of the first.
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