Fluke 5500A, Service Manual

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Calibration and Verification
Performance Verification Tests
3
3-23
3-30. Resistance Accuracy
The Resistance Accuracy test verifies the accuracy of synthesized resistance at the
5500A Calibrator front panel NORMAL terminals. See Figure 3-3 for test equipment
connection instructions. For resistances of less than 110 k
Ω
, use the four-wire COMP
option. For resistances of 110 k
Ω
or higher, the COMP option is automatically turned
off. Table 3-16 shows the test points.
Table 3-16. Resistance Accuracy Test
Nominal Value Measured Value (Ohms) Deviation % 90-Day Spec. (m
Ω
or %)
0
Ω
6 m
Ω
2
Ω
0.309%
10.9
Ω
0.064%
11.9
Ω
0.135%
19
Ω
0.088%
30
Ω
0.059%
33
Ω
0.052%
109
Ω
0.021%
119
Ω
0.020%
190
Ω
0.015%
300
Ω
0.012%
330
Ω
0.025%
1.09 k
Ω
0.012%
1.19 k
Ω
0.012%
1.9 k
Ω
0.010%
3 k
Ω
0.009%
3.3 k
Ω
0.025%
10.9 k
Ω
0.012%
11.9 k
Ω
0.012%
19 k
Ω
0.010%
30 k
Ω
0.009%
33 k
Ω
0.026%
109 k
Ω
0.013%
119 k
Ω
0.014%
190 k
Ω
0.012%