Keithley 261
Picoampere Source 0 to 10V
Description
This Picoampere is a secondary standard for calibration of picoammeters and electrometers.
It is a "passive" source, consisting of a selectable 0 to 10V voltage in series with a specially selected and tested high mega resistor.
Key Points
Output of 10E-14ampere to 1.1 x 10E-04 ampere with 3 dial resolution
Accuracy varies from ± 0.25% to ± 1.6% depending on range
0.01% of line regulation
Source voltage from 0 to 11V in 0.01V steps
Specifications
Line regulation: 0.01%
Source voltage: 0 to 11V in 0.01V steps
Resolution: 3 dial
