5520A
Operators Manual
4-28
nn322f.eps
• I OUT selects AUX or 20A terminals. Current outputs 3 A or above are always on
the 20A terminals.
• “LO”s ties or opens a connection between front panel NORMAL LO and AUX LO
terminals. The front panel NORMAL LO and AUX LO terminals must be tied
together either at the UUT or at the 5520A. The default is tied.
4-27. Setting AC Power Output
Note
Tie the terminals NORMAL LO and AUX LO together at the UUT, or at the
5520A via the “LO”s softkey selection “tied.” For optimum phase
performance, tie the LO terminals at the UUT. At current levels > 2.2 A, tie
the terminals at the UUT using heavy gauge wire < 10 m
Ω
resistance.
The calibrator produces an ac power output by sourcing an ac voltage on the NORMAL
outputs and an ac current on the AUX outputs.
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