Keithley Instruments 2440 Overview
The 2440 Source Meter combines a precise, low-noise, highly stable DC power supply with a low-noise, highly repeatable, high-impedance multimeter. It has 0.012% basic accuracy with 5Tone-digit resolution. At 5Tone digits, the SourceMeter delivers 520 readings/second over the IEEE-488 bus. At 4Tone digits, it can read up to 2000 readings/second into its internal buffer. The unit has broad source and measurement ranges: Source voltage from 5V to 42V; measure voltage from 1V to 42V. Source current from 500pA to 5.25A; measure current from 100pA to 5.25A. Measure resistance from 10 (<10 in manual ohms) to 21.1M. Maximum source power is 66W.
