Fluke 2680A User Manual page 185

4. Verify Accuracy Configure the Decade Resistance Source for the output
values below and verify the Spy window measurement is between the
minimum and maximum values. Change the channel 1 range as required (see
Step 2).
Resistance Range
300 Ω
300 Ω
3 kΩ
3 kΩ
30 kΩ
300 kΩ
3 MΩ
The resistance accuracy in this table makes allowance for up to 0.01% decade resistance
tolerance.
Resistance Range
300 Ω
300 Ω
3 kΩ
3 kΩ
30 kΩ
300 kΩ
3 MΩ
Decade Resistor
Short Circuit (Zero)
290 Ω
Short Circuit (Zero)
2.9 kΩ
29 kΩ
290 kΩ
2.9 MΩ
5700A
Short Circuit (Zero)
190 Ω
Short Circuit (Zero)
1.9 kΩ
19 kΩ
190 kΩ
1.9 MΩ
Accuracy Performance Tests
Minimum Reading
0 Ω
289.861 Ω
0 Ω
2.89849 kΩ
28.9834 kΩ
289.621 kΩ
2.89146 MΩ
Minimum Reading
0 Ω
189.912 Ω
0 Ω
1.89912 kΩ
18.9893 kΩ
189.750 kΩ
1.89425 MΩ
Maintenance
Maximum Reading
0.05 Ω
290.139 Ω
0.5 Ω
2.90137 kΩ
29.0166 kΩ
290.379 kΩ
2.90854 MΩ
Maximum Reading
0.030 Ω
190.088 Ω
0.30 Ω
1.90088 kΩ
19.0107 kΩ
190.250 kΩ
1.90575 MΩ
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