Performance Test 4
U3402A User’s and Service Guide 69
[1]
Specifications are for 2-wire ohms function using the Rel operation enabled to eliminate
lead resistance.
Configuration: 4- wire
W
1 Select the resistance function.
2 Select each range in the order shown in Table 4- 5. Provide the resistance
value indicated. Compare measurement results to the appropriate test
limits shown in Table 4- 5. (Be certain to allow for appropriate source
settling.)
Function Reading rate Input Range Error from nominal
one year
2-wire
W
Medium 360.00
W
400
W
±0.41
W
[1]
3.6000 k
W
4 k
W
±3.1
W
[1]
36.000 k
W
40 k
W
±24
W
[1]
360.00 k
W
400 k
W
±240
W
3.6000 M
W
4 M
W
±5.7 k
W
20.000 M
W
40 M
W
±303 k
W
200.00 M
W
300 M
W
±10.05 M
W
Ta b l e 4- 5 4-wire
W
verification test
Function Reading rate Input Range Error from nominal
one year
4-wire
W
Slow 0.000
W
120
W
±8 m
W
[1]
0.00000
W
1.2 k
W
±50 m
W
[1]
0.0000
W
12 k
W
±0.5
W
0.000
W
120 k
W
±5
W
0.00000
W
1.2 M
W
±50
W
0.0000
W
12 M
W
±0.5 k
W
0.000
W
120 M
W
±8 k
W
Ta b l e 4- 4 2-wire
W
verification test
U3402-90001.book Page 69 Friday, July 24, 2009 4:04 PM
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