Fluke 7526A - Ohms Ratio Table

7526A
Calibration Manual
20
Use the 742A-1K for the 400 Ω range. Use the 742A-10K for the 4 KΩ range. For more
information about how to use the ratio mode, see the 8508A Operators Manual. Note the
ratio indication on the 8508A in Table 8. Use the formula: (742A actual value/ratio
indication x 100 = actual 5522A actual value). Start with the 7526A in the 400 Ω range.
After the 400 Ω test, change the 7526A to the 4000 Ω range.
Table 8. Ohms Ratio Table
Range
742A
Value
(Ω)
Ratio
5522A
Actual
Value (Ω)
7526A
Reading
90-Day
Specification
1-Year
Specification
0 Ω 0.0035 Ω 0.004 Ω
25 Ω 0.004 Ω 0.0045 Ω
75 Ω 0.005 Ω 0.0055 Ω
95 Ω 0.0054 Ω 0.0059 Ω
100 Ω 0.0055 Ω 0.0060 Ω
105 Ω 0.0056 Ω 0.0061 Ω
150 Ω 0.0065 Ω 0.007 Ω
300 Ω 0.0095 Ω 0.010 Ω
400 Ω 0.0115 Ω 0.012 Ω
0 Ω 0.035 Ω 0.04 Ω
250 Ω 0.04 Ω 0.045 Ω
750 Ω 0.05 Ω 0.055 Ω
1000 Ω 0.055 Ω 0.06 Ω
1500 Ω 0.065 Ω 0.07 Ω
2000 Ω 0.075 Ω 0.08 Ω
3000 Ω 0.095 Ω 0.10 Ω
4000 Ω 0.115 Ω 0.12 Ω