Keysight U3606B, Service Manual

Page: 42 / 123

1 Calibration Procedures
42 Keysight U3606B Service Guide
Gain verification test
This test checks the full-scale reading accuracy of the instrument. Verification
checks are performed only for those functions and ranges with unique gain
calibration constants.
DC voltage gain verification test
1 Connect the calibrator to the front panel V (red) and LO (black) input terminals
(see Figure 1-2, “Test setup for DC voltage and AC voltage gain verification,”
on page 28).
2 Press [ ] to select the DC voltage function. The DC annunciator will turn on
according to your selection.
3 Select each range in the order shown below. Provide the indicated input
voltage. Compare the measurement results to the appropriate test limits in
Table 1-3 . (Be certain to allow for appropriate source settling when using the
Fluke 5520A.)
Table 1-2 Zero offset verification test (continued)
Input Function Range Error from nominal 1-year
Open
Capacitance
1 nF ±0.008 nF
10 nF ±0.05 nF
100 nF ±0.5 nF
1
μ
F ±5 nF
10 μ F ±0.05 μ F
100
μ
F ±0.5
μ
F
1000 μ F ±5 μ F
10000
μ
F ±50
μ
F
DC current
10 mA ±0.0015 mA
100 mA ±0.005 mA
1 A ±0.00007 A
3 A ±0.00021 A
V