2680A/2686A
Users Manual
4-28
4-Wire Resistance Accuracy Test (FAI Module)
1.
Connect the Resistance Source to Channels 1 and 11
Remove the
Universal Input module from the instrument and connect a cable from the
Decade Resistance Source to the Universal Input module terminals for channel
1 (Sense) and channel 11 (Source) as shown in Figure 4-4. Reinstall the
Universal Input module. You may also use the 5700A resistance calibration
output instead of the Decade Resistance Source. Tables are provided for both
connections. Refer to Figure 4-5 for the 5700A 4-wire connections.
2.
Configure Channel 1 for Resistance
In Fluke DAQ, configure channel 1 for
Ohms 4W, 300 range.
3.
Open Spy
Open the Spy window under the Configuration dialog.
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
300
Ω
Short Circuit (Zero)
0
Ω
0.1
Ω
300
Ω
290
Ω
289.81
Ω
290.19
Ω
3 k
Ω
Short Circuit (Zero)
0
Ω
1.0
Ω
3 k
Ω
2.9
k
Ω
2.8981
k
Ω
2.9019
k
Ω
30
κΩ
29
k
Ω
28.981
k
Ω
29.019
k
Ω
300
κΩ
290
k
Ω
288.37
k
Ω
291.63
k
Ω
3 M
Ω
2.9
M
Ω
2.8600
M
Ω
2.9400
M
Ω
The resistance accuracy in this table makes allowance for up to 0.01% decade resistance
tolerance.
Summary of Contents for 2680A
Page 8: ......
Page 14: ...2680A 2686A Users Manual vi ...
Page 20: ...2680A 2686A Users Manual 1 2 ...
Page 98: ...2680A 2686A Users Manual 2 62 ...
Page 196: ......
Page 228: ...2680A 2686A Users Manual A 32 ...
Page 236: ...2680A 2686A Users Manual C 4 ...
Page 242: ...2680A 2686A Users Manual D 6 ...
Page 274: ...2680A 2686A Users Manual 6 ...