Keithley 6487 Reference Manual

15-4 Performance Verification Model 6487 Reference Manual
Table 15-1
Recommended performance verification equipment
Description Manufacturer/Model Specifications
Calibrator Fluke 5700A DC Voltage:
1
2V: 7ppm
20V: 5ppm
200V: 7ppm
DC Current:
1
20μA: 550ppm
200μA: 100ppm
2mA: 55ppm
20mA: 55ppm
Electrometer Calibration
Standard
Keithley Model 5156 Nominal Resistance:
2
100MΩ: 200ppm
1GΩ: 300ppm
Digital Multimeter Keithley Model 2001 DC Voltage:
3
10V: 32ppm
50V: 50ppm
500V: 53ppm
Low-noise triax cable
Low-noise coax cable
Triax shielding cap
Triax-to-BNC adapter
Dual banana-to-BNC adapter
Banana plug test leads
Keithley 7078-TRX-3
Keithley 4801
Keithley CAP-31
Keithley 7078-TRX-BNC
Pomona 1269
Keithley 8607
1.
90-day, 23°±5°C full-range accuracy specifications shown. Uncertainty for 20μA output current does not meet the recommended
four-times better uncertainty specification.
2.
23°±3°C accuracy of characterization.
3.
One-year, DMM accuracy specifications at specified voltage and range.

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%