Service manual

Calibration and Verification
Performance Verification 3
3-39
10. Press the Ω key.
11. Press the
CONFIG key and select Filt , RESL7, 4wΩ, and LoI.
12. Repeat steps 3 – 9 for the NormalΩ LoI ranges.
13. Press the
Ω Plus key and select TruΩ.
14. Press the
CONFIG key and select Filt , RESL7, and 4wΩ. Ensure LoI is deselected.
15. Repeat steps 3 – 9 for the
TruΩ ranges.
16. Press the
Ω Plus key and select TruΩ.
17. Press the
CONFIG key and select Filt , RESL7, 4wΩ, and LoI.
18. Repeat steps 3 – 9 for the
TruΩ LoI ranges.
19. Press the
Ω Plus key and select HiVΩ.
20. Press the
CONFIG key and select Filt , RESL7, and 4wΩ.
21. Repeat steps 3 – 9 for the
HiVΩ ranges.
Table 3-10. Resistance Verification Points and Sequence
Tolerance
[1]
8508A Range Resistance
Normal Ω and TruΩ
[2]
Normal Ω LoI and TruΩ LoI
[2]
0 Ω Perform input zero operation to calibrator range locked zero output 2 Ω
1 Ω ± 0.0000240 Ω ± 0.0000240 Ω
0 Ω Perform input zero operation to calibrator range locked zero output 20 Ω
10 Ω ± 0.000133 Ω ± 0.000133 Ω
0 Ω Perform input zero operation to calibrator range locked zero output 200 Ω
100 Ω ± 0.00101 Ω ± 0.00113 Ω
0 kΩ Perform input zero operation to calibrator range locked zero output 2 kΩ
1 kΩ ± 0.0000101 kΩ ± 0.0000113 kΩ
0 kΩ Perform input zero operation to calibrator range locked zero output 20 kΩ
10 kΩ ± 0.000101 kΩ ± 0.000113 kΩ
0 kΩ Perform input zero operation to calibrator range locked zero output 200 kΩ
100 kΩ ± 0.00101 kΩ ± 0.00107 kΩ
0 MΩ Perform input zero operation to calibrator range locked zero output 2 MΩ
1 MΩ ± 0.0000117 MΩ ± 0.0000142 MΩ
0 MΩ Perform input zero operation to calibrator range locked zero output 20 MΩ
10 MΩ ± 0.000320 MΩ ± 0.000570 MΩ
0 MΩ Perform input zero operation to calibrator range locked zero output 200 MΩ
100 MΩ ± 0.01950 MΩ ± 0.18700 MΩ
0 GΩ Perform input zero operation to calibrator range locked zero output 2 GΩ
1 GΩ ± 0.0018750 MΩ ± 0.0018750 MΩ
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