Measuring The Output - Agilent Technologies 6811B Quick Start Manual

Measuring the output

All measurements are based on acquiring and subsequently processing output waveform information.
When the ac source is on, it takes measurements and updates the front panel meter continuously. The
Meter key accesses the measurement functions from the front panel.
The SCPI MEASure command acquires new waveform information each time it is executed. The SCPI
FETCh command does not acquire new waveform information but extracts the desired information from
previously acquired waveform data. SCPI commands let you measure phases individually or
simultaneously measure all phases using the FETCh command.
Measurement functions
The following example illustrates the measurements that can be returned by the front panel of the ac
source when sourcing power to a typical non-resistive load such as a power supply. The ac source output
voltage and current waveforms are shown on the next page.
NOTE: On Agilent 6811B, 6812B, and 6813B units, the Input key selects the meter coupling
and hence, what the meter will measure. The choices are: AC only, DC only, or AC +
DC.
Meter
(FETC/MEAS)
&
&
&
&
&
&
&
&
&
Note that in addition to the measurement functions listed above, the Agilent 6834B unit can also measure
total power of all phases and neutral rms current.
12
120V 60HZ
120V 1.925A
1.93A 60HZ
120V 150.5W
2.82 CREST F
5.379A PK REP
36.83A PK NR
230.6VA
175.2 VAR
0.65 PFACTOR
rms voltage and frequency
rms voltage and current
rms current and frequency
rms voltage and power
current crest factor
peak current, repetitive
peak current, non repetitive
apparent power
reactive power
power factor
Quick Start Guide