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Used Keithley 640 Multimeters

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    Keithley Instruments 640

    Keithley Instruments 640

    • Manufacturer: Keithley
    • Model: 640

    640 Electrometer Voltage: 30 µV full scale to 30 V in 13 - 1X and 3X ranges. Coulombs: 2x10-14 FS to 6x10-10. Current: 10-15 A full scale to 10-5 A (3X range). Remote head, battery operation, analog output.

    Cary, NC
  • Keithley 640

    Keithley 640

    • Manufacturer: Keithley
    • Model: 640

    Coulombs: 2x10-14 FS to 6x10-10. Current: 10-15 A full scale to 10-5 A (3X range).

    Webster, MA