User manual

User Manual – Rev B FCS Series II
4.2.6 MEASUREMENTS Screens
The FCS Series II uses a DSP based data acquisiti
reg rding the output of the Sou his da t
wa forms and calculates seve rame
calculations are displayed in a series of me
me surement screens are use splay
on system to provide extensive information
a
ve
rce. T
ral pa
ta acquisition system digitizes the voltage and curren
ters from this digitized data. The results of these
asurement data screens. A total of three
a d to di all this information.
Figure 4-6: MEASUREMENT Screen
Th Measurement screens av n th nges can
be ade anywhere. Instead, t ee s
measurement screens can be reached by
to all available screens. Only the first two s
installed which will add the third screen.
In three-phase mode, measurements are available for each phase individually. To select the
de red phase, use the PHAS togg
displays the data for phase A only.
The following parameters are available in
e
m
ailable o
hese thr
e FCS Series are not menus in that no cha
creens provide load parameter readouts. The
successively pressing the Meas key, which will toggle
creens are available unless the –ADV option is
si E key to le through phase A, B, C, or ABC. The ABC mode
the measurement screens:
ENTRY DESCRIPTION
MEASUREMENTS 1
VOLTAGE This value is the true rms output voltage measured at the voltage
sense lines.
CUR Thi s the nt drawn by the load. RENT s value i true rms output curre
FRE The freq lines.
For units w .
Q output uency is measured at the sense
ith –LKS option, see note below
POWER This value is the real power.
MEASUREMENTS 2
VA POWER This value is the apparent power.
VAR POWER This value is the reactive power.
POWER FACTOR This readout sh he load. ows the power factor of t
CREST FACTOR This readout displays the ratio between peak current and rms
current.
MEASUREMENTS 3
VOLT THD This readout displays the total voltage distortion for the selected
p
hase. The distortion calculation is based on the H2 throu
g
h H50
California Instruments 62