The Keithley 2401 Low Voltage SourceMeter provides precision voltage and current sourcing and measurement capabilities (1µV – 20V and 10pA – 1A). It is both a highly stable DC power source and a true instrument-grade 5½-digit multimeter. The power source characteristics include low noise, precision, and readback. The multimeter capabilities include high repeatability and low noise. The result is a compact, single-channel, DC parametric tester.

Features and Specifications of:

●Five instruments in one:

oVoltage source

oCurrent source

oVoltage meter

oCurrent meter

oOhmmeter

●Source and sink (4-quadrant) operation

●0.012% basic measure accuracy with 5½-digit resolution

●2-, 4-, and 6-wire remote V-source and measure sensing

●1700 readings/second at 4½ digits via GPIB

●Standard SCPI, GPIB, RS-232, and Keithley Trigger Link interfaces

●Keithley LabTracer 2.0 I-V curve tracing application software (download)

●General Characteristics:

oLoad Impedance:  Stable into 20,000pF typical

oCommon Mode Voltage:  250V DC (40V DC for Model 2440)

oCommon Mode Isolation:  >109Ω,<1000pF

oOverrange:  105% of range, source and measure

oMax Voltage Drop Between Input/Output and Sense Terminal:  5V

oMax Sense Lead Resistance:  1MΩ for rated accuracy

oSense Imput Impedance:  >1010Ω

oGuard Offset Voltage:  <150µV, typical

oSource Output Modes:

■Fixed DC level

■Memory List (mixed function)

■Stair (linear and log)

■Memory Buffer:  5,000 readings @ 5 digits (two 2,500 point buffers)

■Includes selected measured value(s) and time stamp

■Lithium battery backup (3 yr+ battery life)

oSource Memory List:  100 points maximum

oProgrammability:  IEEE-488 (SCPI-1995.0), RS-232, 5 user-definable power-up states plus

factory default and *RST

oDigital Interface:  Interlock: Active low input

oPower Supply:  100V to 240V rms, 50–60Hz (automatically detected at power up), 190VA

oCooling:  Convection

oEMC:  Conforms to European Union Directive 89/336/EEC, EN 61326-1