2680A/2686A
Users Manual
4-22
Resistance Range*
5700A
Minimum Reading
Maximum Reading
300
Ω
Short Circuit (Zero)
0
Ω
10
Ω
300
Ω
190
Ω
189.91
Ω
200.09
Ω
3 k
Ω
Short Circuit (Zero)
0
Ω
10.5
Ω
3 k
Ω
1.9
k
Ω
1.8991
k
Ω
1.9109
k
Ω
30 k
Ω
19
k
Ω
18.989
k
Ω
19.021
Ω
300 k
Ω
190
k
Ω
189.75
k
Ω
190.26
k
Ω
3 M
Ω
1.9
M
Ω
1.8942
M
Ω
1.9058
M
Ω
* The resistance accuracy in this table makes allowance for up to 0.1
Ω
of lead wire resistance.
You must add any additional lead wire resistance present in your setup to the resistance values
given in this table. Using the 5700A in 2-wire compensation mode eliminates much of the lead
resistance errors. See the 5700A Operator’s Manual for details.
2-Wire Resistance Accuracy Test (FAI Module) - Optional
Complete the following procedure to test the accuracy of the resistance function
for the FAI module using 2 terminals. Measurement accuracy applies to all
channels, not just the channel used for the test. The 4-wire resistance accuracy test
is more rigorous and you may wish to skip this step and continue to 4-Wire
Resistance Accuracy Test described later in this Chapter.
1.
Connect the Resistance Source to Channel
1 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. 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.
2.
Configure Channel 1 for Ohms
In Fluke DAQ, configure channel 1 for
Ohms 2W, 30 k 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).
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