1-3
1.5.2 Voltage source verification equipment
Table 1-2 summarizes equipment recommended to perform
voltage source verification.
Table 1-2
Recommended test equipment for voltage source verification
Mfg.
Model Description
Specifications*
Keithley
2001
Multimeter
200V range: ±41ppm
1000V range: ±47ppm
Keithley
8607
Dual banana
plug cable
*1-year multimeter specifications are for full-range input.
Table 1-1
Recommended test equipment for meter performance verification
Mfg.
Model
Description
Specifications
Fluke
Keithley
Keithley
Keithley
Keithley
Keithley
5700A
5156
4801
7078-TRX-BNC
237-ALG-2
CAP-31
Calibrator
Electrometer Calibration Standard
Characterized resistors
(Artifact Verification Only)
Low-noise coax cable
Triax-to BNC adapter
BNC to dual banana plug adapter
Triax to alligator clip cable*
Triax shielding cap
±5ppm basic uncertainty.
1
DC Voltage:
1.9V: ±7ppm
19V: ±5ppm
190V:±7ppm
DC current:
19µA: ±576ppm
190µA: ±103ppm
1.9mA: ±55ppm
19mA: ±55ppm
Ohms:
1.9M
Ω
(nominal)
19M
Ω
(nominal)
100M
Ω
(nominal)
100M
Ω
2
[2µA, 200nA]
1G
Ω
[2nA, 20nA, 2G
Ω
]
10G
Ω
[200pA, 20G
Ω
]
100G
Ω
[20pA, 200G
Ω
]
1nF [2nC, 20nC]
100nF [200nC, 2µC]
1T
Ω
3
10T
Ω
100T
Ω
1. 90-day calibrator specifications shown include total absolute uncertainty at specified output.
2. Equivalent resistance and capacitance standards may be substituted if characterized to four times better uncertainty than
equivalent Model 6517A specifications.
3. Resistors must be characterized to four times better uncertainty than equivalent Model 6517A specifications.
*Short red and black clips to make triax short.
1.5.3 Temperature verification equipment
Table 1-3 lists temperature verification equipment.
Table 1-3
Temperature verification equipment
Mfg.
Model
Description
Specifications
Omega CL-307K Type K Thermo-
couple Calibrator/
Simulator
-190°C to
+1300°C, ±0.4%