2640A/2645A NetDAQ
Users Manual
6-22
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 Decade Resistor Minimum Reading Maximum Reading
300Ω Short Circuit (Zero) 0Ω 0.05Ω
300Ω 290Ω 289.861Ω 290.139Ω
3 kΩ Short Circuit (Zero) 0Ω 0.5Ω
3 kΩ 2.9 kΩ 2.89849 kΩ 2.90137 kΩ
30 kΩ 29 kΩ 28.9834 kΩ 29.0166 kΩ
300 kΩ 290 kΩ 289.621 kΩ 290.379 kΩ
3 MΩ 2.9 MΩ 2.89146 MΩ 2.90854 MΩ
The resistance accuracy in this table makes allowance for up to 0.01% decade resistance
tolerance.
Resistance Range 5700A Minimum Reading Maximum Reading
300Ω Short Circuit (Zero) 0Ω 0.030Ω
300Ω 190Ω 189.912Ω 190.088Ω
3 kΩ Short Circuit (Zero) 0Ω 0.30Ω
3 kΩ 1.9 kΩ 1.89912 kΩ 1.90088 kΩ
30 kΩ 19 kΩ 18.9893 kΩ 19.0107 kΩ
300 kΩ 190 kΩ 189.750 kΩ 190.250 kΩ
3 MΩ 1.9 MΩ 1.89425 MΩ 1.90575 MΩ
5. Close Spy Window.
