B&K Precision 5491B - Manual - Manual (Page 22)

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(Model 2831E) DC Current measurement on Range: 2 A, 20 A
(Model 5491B) DC Current measurement on Range: 5 A, 20 A
(Model 2831E) AC Current measurement on Range: 2 A, 20 A
(Model 5491B) AC Current measurement on Range: 5 A, 20 A
CAUTION: Maximum Input = 20 A DC or RMS Maximum test times : < 20 s
Figure 3-2 DC and AC Current Measurements
3.3.2 Front Panel Fuse Replacement
WARNING: Make sure the instrument is disconnected from the power line and other equipment
before replacing the AMPS fuse.
1. Turn off the power and disconnect the power line and test leads.
AC CURRENT SOURCE
DC CURRENT SOURCE