A-2 Specifications
Specifications
The following pages contain the condensed specifications for the 2303. Every effort has
been made to make these specifications complete by characterizing its performance under the
variety of conditions often encountered in production, engineering, and research.
Absolute accuracy
All DC specifications are given as relative accuracies. To obtain absolute accuracies, the
absolute uncertainties of the calibration sources must be added to the relative accuracies. The
absolute uncertainties for the calibration sources used during Keithley’s factory calibration are
included in the specifications. The uncertainties of the operator’s sources may be different.
All AC specifications are given as absolute accuracies.
Typical accuracies
Accuracy can be specified as typical or warranted. All specifications shown are warranted
unless specifically noted. Almost 99% of the 2303’s specifications are warranted specifications.
In some cases it is not possible to obtain sources to maintain traceability on the performance of
every unit in production on some measurements (e.g., high-voltage, high-frequency signal
sources with sufficient accuracy do not exist). These values are listed as typical.
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