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15-4
Performance Verification
Table 15-1
Recommended performance verification equipment
Description
Calibrator
Electrometer Calibration
Standard
Digital Multimeter
Low-noise triax cable
Low-noise coax cable
Triax shielding cap
Triax-to-BNC adapter
Dual banana-to-BNC adapter
Banana plug test leads
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.
Manufacturer/Model
Fluke 5700A
Keithley Model 5156
Keithley Model 2001
Keithley 7078-TRX-3
Keithley 4801
Keithley CAP-31
Keithley 7078-TRX-BNC
Pomona 1269
Keithley 8607
Model 6487 Reference Manual
Specifications
1
DC Voltage:
2V: 7ppm
20V: 5ppm
200V: 7ppm
1
DC Current:
20μA: 550ppm
200μA: 100ppm
2mA: 55ppm
20mA: 55ppm
2
Nominal Resistance:
100MΩ: 200ppm
1GΩ: 300ppm
3
DC Voltage:
10V: 32ppm
50V: 50ppm
500V: 53ppm
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