User manual

32
Measurements
RMS VALUE:Thismodeidentiestheeffec-
tive value from the displayed view of the signal.
Ifthesignalisperiodic,therstperiod on the
left of the screen will be used for the measurement. The
effective value is not applied to a sine signal will be calcu-
lated directly (so-called TrueRMS). The measurement will
only be applied to the selected channel.
PEAK-PEAK: This mode measures the diffe-
rence in voltage between the maximum and
the minimum peak value of the signal within
the displayed view (V
pp
).
PEAK + : This mode measures the maxi-
mum voltage value in the displayed view of the
screen. The measurement will only be applied
to the selected channel (V
p+
).
PEAK – : This mode measures the minimum
voltage value in the displayed view of the
screen. The measurement will only be applied
to the selected channel (V
p-
).
FREQUENCY:Thismodeidentiesthefre-
quency of the signal from the reci-procal value
oftherstsignalperiod T (f). The measurement
will only be applied to the selected channel.
PERIOD: This mode measures the duration of
the signal period T. The periodidentiesthedu-
ration between two equal values of one periodi-
cally repeated signal.
AMPLITUDE: This mode measures the am-
plitude of a square wave signal (VAmp). This
mode calculates the difference in voltage bet-
ween the upper and the lower level (V
base
and V
top
). The
measurement will only be applied to the selected channel
and requires a minimum of one complete period of a trig-
gered signal.
TOP LEVEL: This mode measures the mean
voltage level of an upper square wave (V
Top
).
This mode calculates the mean value of the
slope (without overshoot). The measurement will only be
applied to the selected channel and requires a minimum of
one complete period of a triggered signal.
BASE LEVEL: This mode measures the mean
voltage level of the lower square wave (V
Base
).
This mode calculates the mean value of the
slope (without overshoot). The measurement will only be
applied to the selected channel and requires a minimum of
one complete period of a triggered signal.
PULSE WIDTH +: This mode measures the
width of the positive pulse. A positive pulse
consists of a rising slope followed by a fal-
lingslope.Thismeasurementtypeidentiesthetwoslo-
pes and calculates the pulse width from their time diffe-
rence. The measurement will only be applied to the selec-
ted channel and requires a minimum of one completely
displayed period of a triggered signal.
.
PULSE WIDTH –: This mode measures the
width of the negative pulse. A negative pulse
consists of a falling slope followed by a rising
slope.Thismeasurementtypeidentiesthetwoslopes
and calculates the pulse width from their time difference
(t). The measurement will only be applied to the selected
channel and requires a minimum of one completely dis-
played period of a triggered signal.
DUTY CYCLE +: This mode measures the po-
sitive duty ratio. In this mode, positive sig-
nalportionsareidentiedoveraspecicpe-
riod and will then be analyzed in relation to the signal pe-
riod. The measurement will only be applied to the selec-
ted channel and requires a minimum of one complete pe-
riod of a triggered signal. The measured value Dty+ is dis-
played as a percentage of the signal period.
DUTY CYCLE –: This mode measures the ne-
gative duty ratio. In this mode, positive nega-
tiveportionsareidentiedoveraspecicpe-
riod and will then be analyzed in relation to the signal pe-
riod. The measurement will only be applied to the selec-
ted channel and requires a minimum of one complete pe-
riod of a triggered signal. The measured value Dty+ is dis-
played as a percentage of the signal period.
RISE TIME 90%: This mode measures the rise
timeoftherstrisingslopeinthedisplayed
view of the screen (t
r
). The risetimeidenties
the time in which the signal rises from 10% to 90% of its
amplitude.
FALL TIME 90%: This mode measures the fall
timeoftherstfallingslopeinthedisplayed
view of the screen (t
f
).Thefalltimeidenties
the time in which the signal falls from 90% to 10% of its
amplitude.
RISE TIME 80%: This mode measures the rise
timeoftherstrisingslopeinthedisplayed
view of the screen (t
r80
). The risetimeidenties
the time in which the signal rises from 20% to 80% of its
amplitude.
FALL TIME 80%: This mode measures the fall
timeoftherstfallingslopeinthedisplayed
view of the screen (t
f80
). The fall time identi-
esthetimeinwhichthesignalfallsfrom80%to20%of
its amplitude.