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5730A
Operators Manual
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 Calibrator 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 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.
check standard
A device used solely to verify the integrity of another standard. For example in the
Calibrator, one Fluke RMS sensor continuously monitors the output voltage while a
second Fluke RMS sensor confirms the integrity of the first.
characterization
The development of a table of calibration constants or correction factors for use in
correcting the output or reading of an instrument.
common mode noise
An undesired signal that exists between a device's terminals and ground. Common mode
noise is at the same potential on both terminals of a device.
compliance voltage
The maximum voltage a constant-current source can supply.
control chart
A chart devised to monitor one or more processes in order to detect the excessive
deviation from a desired value of a component or process.
crest factor
The ratio of the peak voltage to the rms voltage of a waveform (with the dc component
removed).
C-2
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