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Keithley 263: Difference between revisions
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It is designed as a secondary standard for calibrating low-current, high-resistance instruments such as electrometers and picoamperemeters. | It is designed as a secondary standard for calibrating low-current, high-resistance instruments such as electrometers and picoamperemeters. | ||
It is capable of sourcing current or charge either actively or passively. If the voltage burden is small or known, the Model 263 can be operated as a passive source with lower offset errors | It is capable of sourcing current or charge either actively or passively. If the voltage burden is small or known, the Model 263 can be operated as a passive source with lower offset errors. | ||
The 263 includes nine precision resistors and displays their actuel calibrated value as each is selected. | The 263 includes nine precision resistors and displays their actuel calibrated value as each is selected. | ||