Fluke 5522A Operators, Operator'S Manual

Page: 102 / 426

5522A
Operators Manual
4-26
nn322f.eps
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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 Calibrator. The default is tied.
How to Set AC Power Output
Note
Tie the terminals NORMAL LO and AUX LO together at the UUT, or at the
Calibrator 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.
See “Setting AC Voltage Output” above for information on selecting an ac voltage output
in dBm; this procedure assumes an ac voltage output in volts.
Complete the following procedure to set an ac power output. If you make an entry error,
press
G
one or more times to clear the display, then reenter the value.

Caution
To prevent damage to the UUT, verify the applied voltage to the
UUT does not exceed the rating of the UUT insulation and the
interconnecting wiring.
1. Press
R
to clear any output from the Calibrator.
2. Connect the UUT as described earlier in this chapter under “Connecting the
Calibrator to a UUT.” (Adapt the voltage and current connections to suit your
application.)
3. Set the UUT to measure ac power on the desired range.
4. Press the numeric keys and decimal point key to enter the desired voltage output
(maximum six numeric keys). For example, 123.456.
Note
At voltage outputs of 100 volts and above (nominal), you may notice a
slight high-pitched sound. This is normal.
5. Press a multiplier key, if necessary. For example, press
c
.
6. Press
V
.
7. The Control Display now shows the amplitude of your voltage entry. For example,
123.456 mV (below).