Keithley 6517A Electrometer / High Resistance Meter

Product Overview This pre-owned Keithley 6517A Electrometer / High Resistance Meter has passed full factory self-test and calibration verification, fully functional for ultra-low level weak signal & ultra-high resistance precision characterization. It integrates a built-in ±1kV programmable voltage source, making it the industry standard instrument for insulation, semiconductor, material science and photovoltaic testing. Key Technical Specifications Current Measurement: 0.1 fA ~ 20 mA, bias current < 2 fA, peak noise as low as 0.75 fA Voltage Measurement: 10 µV ~ 200 V, input impedance > 200 TΩ to minimize loading effect Resistance Measurement: 100 µΩ up to 10¹⁷ Ω, perfect for ultra-insulating material test Charge Measurement: 10 fC ~ 2 µC static & capacitor charge detection Built-in ±1kV Source: Programmable 5mV step voltage sweep, polarity reversal function to eliminate contact potential error Display & Speed: 5.5 digit LED readout, up to 125 readings per second fast sampling Communication: Standard IEEE-488 GPIB + RS232 interface, full remote programming for automated test system Triaxial Guard Input: Full shielding design to suppress leakage current & external EMI interference Expansion Slot: Support optional 6521/6522 scanner card for multi-channel sequential testing