PPA5xx/15xx user manual
9-2
valid for all waveshapes. Secondary parameters are
computed from one or more of the elementary parameters
(eg. VA = Vrms x Arms).
Not all of the parameters listed are displayed in POWER
mode but they are all computed.
A multi phase instrument also computes the equivalent
values for total power (SUM channel) and the values for
the NEUTRAL current. Step through the phase values with
NEXT and BACK.
The measurements are computed over rectangular
windows with no gaps. The processing power of the DSPs
allows the measurements to be made in true real time
without missing any samples. In this way, the measured
power is a true value even if the signal is fluctuating. The
only occasion when data is missed is when an autozero
measurement is requested – this can be disabled in the
SYTEM OPTIONS menu.
The elementary values are individually filtered before
being used for secondary computations.
To Next Page
Loading...
Need help?
General
