Product specifications

109
Using the dual power analyzer
option instead of an additional
power analyzer instrument exter-
nally is more than just convenient.
Measurements on all four measure-
ment channels (AC source output
voltage and current, and dual power
analyzer voltage and current inputs)
are inherently synchronized with
the AC sou rce output waveform.
This precision would be difficult
to achieve using separate measure-
ment instrument s.
Examples dual power analyzer
applications
• Complete testing of uninterruptible
power sources (UPS)
• Efficiency testing of DC
p ower supplies
• Efficiency testing of AC
p ower sources
• Efficiency testing of transforme rs
• Safety testing of transformers
• Line disturbance and brownout
testing of DC power supplies
• Line disturbance and brownout
testing of AC power sources
• Sleep mode current monitoring
• Independent power analyzer
Sleep mode current monitoring
Many electronic products have
power-saving or sleep modes. In
this mode, the device draws only
enough power to be able to rec-
ognize a “wake-up” signal , and
then execute a smo oth “wake-up”.
The power drawn in this mode is a
critical parameter, and the ability to
accurately monitor it is importa nt.
The accessor y pr ecision current
shunt that is supplied with o ption
020 is mounted in such a way to
make it easy for you to replace it
with a precision resistor of your
choice. By doing this, you can
configure the system to accurately
monitor extremely low currents.
This provides an easy way for you
to profile the current draw in all
modes of your product’s operation.
Since Agilent 6811B-6813B AC
sources produce DC power as well
as AC power, portab le b attery oper-
ated products can also be tested
with this configuration.
UPS (uninterruptible
power source) testing
The Dual Power Analyzer Option
provides many important benefits
for UPS test ing. Since the key to
correct UPS operation is having the
output react properly to changes on
the input, being able to monitor the
output relative to the input si mpli-
fie s testing. Fo r example, commands
are available to en able cal culation
of UPS transfer time, and the phase
difference between the UPS input
and output voltage. Agilent AC
sources also have programmable
output impedance, enabling the
UPS designer to verify product
stability over a wide range of AC
line impedance.
Free Graphical User
Interface (GUI)
When you need to ru n a variety of
tests, study the results carefully,
and then run more tests with slightly
varied conditions, writi ng compute r
programs using the extensive SCPI
command set may seem burdensome.
This is when you should download
the late st copy of the free Agilent
AC Source Graphi cal User Interf ace
from www.agilent.com.
The Agilent AC source GUI makes it
quick and easy to s et the outp ut of
your Agilent AC source, be it from a
stored waveform or with a waveform
that you cr eate using your mouse.
The GUI also all ows you to see the
output of the AC source in gr aphical
form, save the results, or dump them
directly into a Microsoft Excel file.
Microsoft Excel link
The direct Excel link feature was
recently added to meet the current
needs of R&D engineers. It makes
it easy to keep the results of many
tests, and makes them e asily retriev-
able. With it, th e test records result-
ing from changing co nditions can
be kept in o ne place and easily
compared.
Access to raw data often helps in
fully underst anding test results. For
example, small local peaks may not
be evident i n processed data. V, I
and phase results from harmonic
measurements are particular ly
susceptible t o not showing the
complete story in a graphical
representation.
AC Power Source/Analyzers: 375-1750 VA
(Continued)
More detailed specifications at www.agilent.com/find/6800
AC Power Source/Analyzers an integrated AC power solution