KEITHLEY 2790 SourceMeter Switch System 0.1 uV - 1000 Vdc 100 uOhm-120 MOhm

Used. Works well. See photos for voltage measurement test. Does not include any leads.

From the manufacturer:

"Broad range of Measurement Capabilities

The Model 2790’s built-in DMM can make a wide variety of general purpose measurements:

• DC voltage measurements from 0 1μV to 1000V

• AC voltage measurements from 0 1μV to 750V

• DC current measurements from 10nA to 3A

• AC current measurements from 1μA to 3A

• 2-wire resistance measurements from 100μW to 120MW

• 4-wire resistance measurements from 100μW to 120MW

• Frequency measurements from 3Hz to 500kHz

• Period measurements from 333ms to 2μs

• Temperature measurements from –200°C to 630°C (thermistors and 4-wire RTDs)

Additional features of the Model 2790 mainframe include:

• Setup storage—Up to four instrument setups can be saved and recalled

• Offset-compensated ohms—A two-measurement process for 4-wire ohms to cancel the effects of thermoelectric EMFs Available for the 100W, 1kW, and 10kW ranges

• Math—m/X+b, mX+b, percent, and four special math functions provide convenient manipulation of raw readings

• Relative—Null offsets establish baseline values

• Ratio and channel average—Ratio and average calculations for two switching module channels (7702)

• Buffer—Store up to 55,000 readings in the internal buffer

• Limits—Two sets of high and low reading limits to test devices

• Digital I/O port—Five digital limit test output lines to control external circuitry An external trigger input can also be accessed at this port

• Trigger Link—Separate connector with input and output signals

• Monitor—The Model 2790 can monitor a selected channel A scan can be triggered to start when the monitor detects that a reading limit has been reached (7702)

• Remote interface—Model 2790 can be controlled using the IEEE-488 interface (GPIB) or the RS-232 interface.

• Programmable constant V source

(50–500V) supports high speed,

high resistance measurements

• Programmable constant I source

(0–50ma) with dry circuit clamp

helps prevent device stress or

damage during low resistance

measurements"