Fluke 5500A - Setting AC Power Output

Front Panel Operation
Setting the Output
4
4-25
14. Press E. The calibrator clears your entry from the Control Display and copies
it into the Output Display (below is typical).
STBY
+123.4567 mV
+234.567 mA
15. Press O to activate the calibrator output. When changing power output levels,
you must reenter both voltage and current (in either order).
(Hint: Enter voltage or current and then a watts entry value using b A. The
remaining volts or current value is calculated and displayed.)
Two softkey labels appear on the Control Display: I OUT and “LO”s.
I OUT |LO|s
28.9589 mW
AUX
tied
open
aux
boost
tied
• I OUT (Current Output) Selects the current output between the 5500A Amplifier
(aux) and 5725A Amplifier (boost). If a 5725A Amplifier is not connected, AUX
will be in all capital letters and the softkey will have no function.
• “LO”s (Low Potential Output Terminals) The front panel NORMAL LO and AUX
LO terminals must be tied together either at the UUT or at the 5500A. When the
front panel NORMAL LO and AUX LO terminals are tied at the UUT, select “open”
with the “LO”s softkey. If the NORMAL LO and AUX LO terminals are not tied at
the UUT, select “tied” with the “LO”s softkey. The default is tied.
4-26. Setting AC Power Output
Note
Tie the terminals NORMAL LO and AUX LO together at the UUT, or at the
5500A 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.