Fluke 8846A - Page 53

Performance Test and Calibration
Performance Tests 3
3-13
Table 3-7. 8846A 4-Wire Ohms Verification Steps
90-day Test Limits 1-year Test Limits
Nominal
Input
Range
High Low High Low
0 Ω
[1]
10 3.0 mΩ 0 Ω 3.0 mΩ 0 Ω
10 Ω
[1]
10 10.00380 Ω 9.99620 Ω 10.00400 Ω 9.99600 Ω
0 Ω
[2]
100 4.0 mΩ 0 Ω 4.0 mΩ 0 Ω
100 Ω
[1]
100 100.0120 Ω 99.9880 Ω 100.01400 Ω 99.98600 Ω
0 Ω 1000 10.0 mΩ 0 Ω 10.0 mΩ 0 Ω
1 kΩ 1000 1000.090 Ω 999.910 1.00011000 kΩ 999.89000
0 Ω 10000 100.0 mΩ 0 Ω 100.0 mΩ 0 Ω
10 kΩ 10000 10.00090 kΩ 9999.10 1.000110 kΩ 9998.90
0 Ω 100000 1.000000 0 Ω 1.000000 0 Ω
100 kΩ 100000 100.0090 kΩ 99991.0 10.00110 kΩ 99989.0
[1] 5520A must be used with 8508A to obtain suitable test uncertainty ratio.
Table 3-8. 8845A 4-Wire Ohms Verification Steps
90-day Test Limits 1-year Test Limits
Nominal
Input
Range
High Low High Low
0 Ω
[1]
100 4.0 mΩ 0 Ω 4.0 mΩ 0 Ω
100 Ω
[1]
100 100.0120 Ω 99.9880 Ω 100.01400 Ω 99.98600 Ω
0 Ω 1000 10.0 mΩ 0 Ω 10.0 mΩ 0 Ω
1 kΩ 1000 1.00009 kΩ 999.910 Ω 1.000110 kΩ 999.89000 Ω
0 Ω 10000 100.0 mΩ 0 Ω 100.0 mΩ 0 Ω
10 kΩ 10000 10.00090 kΩ 9999.10 Ω 10.00110 kΩ 9998.90 Ω
0 Ω 100000 1.000000 Ω 0 Ω 1.000000 Ω 0 Ω
100 kΩ 100000 100.0090 kΩ 99.9910 kΩ 100.0110 kΩ 99.9890 kΩ
[1] 5520A must be used with 8508A to obtain suitable test uncertainty ratio.