Keysight U3606B, Service Manual

Page: 46 / 123

1 Calibration Procedures
46 Keysight U3606B Service Guide
4-wire resistance gain verification test
1 Connect the calibrator to the front panel (red) and LO (black) input
terminals and (red) and (black) output terminals (see Figure 1-5, “Test
setup for 4-wire resistance gain verification,” on page 31).
2 Press [ ] to select the resistance function.
3 Select each range in the order shown below. Provide the indicated input
resistance. Compare the measurement results to the appropriate test limits in
Table 1-8 (be certain to allow for appropriate source settling when using the
Fluke 5520A).
Table 1-7 2-wire resistance gain verification test
Input resistance Range Error from nominal 1-year
100 Ω 100 Ω
±0.058
Ω
[a]
[a] Specifications stated are for 2-wire resistance measurements using the Null math operation.
Without null, add an additional error of 0.2 Ω .
1 k Ω 1 k Ω
±0.00055 k
Ω
[α]
10 k Ω 10 k Ω
±0.0055 k Ω
[α]
100 k
Ω
100 k
Ω
±0.055 k
Ω
1 M Ω 1 M Ω ±0.00065 M Ω
10 M
Ω
10 M
Ω
±0.0255 M
Ω
100 M Ω 100 M Ω ±2.005 M Ω
NOTE
For the
1
Ω
and 10
Ω
range, please perform calibrator zeroing before testing the
resistance values of the device-under-test (DUT) to ensure that the 5520A is
maintained with a zero cal. every 12 hours ± 1
o
C.