User manual

Front Panel Operation
2001-900-01 Rev. K/ August 2010 3-21
As a primary display, the resolution of peak spikes can be set
from 3.5d to 7.5d, but the accuracy is specified at 3.5d. (As
a multiple display, the resolution is fixed at 3.5d.)
Note that dB and dBm are not allowed as valid units for peak
spikes. Positive-going spikes on a negative DC level could
still read as a negative value, and the log of a negative
number is not defined.
Multiple displays
The displays for DC and AC voltage that show multiple
functions are shown in Figures 3-9 and 3-10. The multiple
display for crest factor, which is calculated from the peak
and RMS values, is described here.
cáÖìêÉ=PJU
Positive and negative peak spikes
RANGE = Set by ACV range (auto or fixed).
REL = Operates normally.
SPEED = Set by peak window (0.1-9.9sec)
FILTER = Set by ACV filter (AUTO=ADV (10)).
RESOLUTION = Set by ACV resolution (AUTO = 3.5d)
UNITS = Fixed on volts.
COUPLING = Set by ACV coupling.
+000.0 mVAC +Pk
Coupling: AC+DC
NOTES:
1. Positive peak spikes and negative peak spikes are selected in the
CONFIGURE-ACV menu.
2. Peak spikes measurement is specified for volts at 3.5 digits.
3. “Peak window” is the time a signal is sampled before a reading
is displayed.