19
Subject to change without notice
Controls and Readout
note section "Mean Value Display".
CHI/II:
This function is required and available only in
DUAL
and
XY
mode in combination with
∆∆∆∆∆
V (37)
measurement.
The probe factor setting
(27) (31)
is automatically taken
into account.
Briefly pressing the button selects between the deflection
coefficients of channel I and channel II. The measured
result is displayed by the readout with
”
∆∆∆∆∆
V1...”
or
”
∆∆∆∆∆
V2...”
. The settings of the cursors must relate to the
signal of the selected channel.
In
XY
mode the instrument is automatically set to
∆∆∆∆∆
V
measurement. In this mode two signals are normally
applied causing an X and a Y deflection. The deflection
coefficient selected for each channel may be different,
thus as in
DUAL
mode the
∆∆∆∆∆
V
cursor measurement
requires a channel selection. Under channel I (Y signal)
measuring condition the cursor lines are displayed as
horizontal lines and the readout displays
”
∆∆∆∆∆
VY...”
. Briefly
pressing the pushbutton changes to channel II (X signal)
voltage measurement. Then the cursor lines are displayed
as vertical lines and the readout indicates
”
∆∆∆∆∆
VX...”
.
In
CH I
or
CH II
mono mode, only one deflection
coefficient is present and there is no requirement to
select between different deflection coefficients.
Consequently the pushbutton is inactivated in
combination with
∆∆∆∆∆
V
measurements.
1/
∆∆∆∆∆
t:
Briefly pressing the button selects between time and
frequency measurement, if the
∆∆∆∆∆
V
function is not
present.
In calibrated time base condition the readout displays
”
∆∆∆∆∆
t:...”
if time measurement is chosen. After briefly
pressing the pushbutton
”f:...”
(frequency) is displayed.
If the time base is uncalibrated the readout displays
”
∆∆∆∆∆
t>...”
or
”f<...”
.
Attention:
Time and frequency measurements are not possible in
XY operation, since in this mode the time base is
switched off.
(36) TRK - CURSOR-Track function.
Briefly pressing simultaneously both buttons
ON/OFF
-
CHI/II - 1/
∆∆∆∆∆
t (35)
and
I/II -
∆∆∆∆∆
V/
∆∆∆∆∆
t (37)
switches over
from single cursor line operation to track mode and vice
versa.
In
TRK
(track) mode both cursor lines are indicated as
active (both dotted lines uninterrupted).
(37) I/II -
∆∆∆∆∆
V /
∆∆∆∆∆
t
- Pushbutton with two functions.
I/II:
Briefly pressing this button changes the active (control-
lable) cursor in the sequence
I - II - I
, if
TRK
(track) mode
is not active. The active cursor is indicated by a conti-
nuously dotted line. An interrupted dotted line indicates
the inactive cursor.
∆∆∆∆∆
V /
∆∆∆∆∆
t:
Pressing and holding this pushbutton changes from voltage
to time (or frequency) measurement and vice versa. In
XY
mode the instrument is automatically set to
∆
V.
∆∆∆∆∆
V:
Please note!
In all DV (voltage) measurement conditions, the division
ratio of the probe(s) must be taken into account. The
voltage value displayed in the readout must be multi-
plied by 100 if e.g. a x100 (100:1) probe is used. In case
of x10 (10:1) probes, the probe factor can be automa-
tically included (see item (27) and (31)).
item 1:
Time base mode (
CH I
or
CH II
single channel
mode,
DUAL
and
ADD
).
In the voltage measurement condition, the cursors are
displayed as horizontal lines and the result is displayed in
the readout.
Single channel mode (channel I or channel II).
The
∆∆∆∆∆
V
measuring result is automatically related to the
deflection coefficient of the active channel. The readout
displays
”
∆∆∆∆∆
V1...”
or
”
∆∆∆∆∆
V2...”
.
Dual mode.
The CURSOR lines must be set on the channel I or
channel II signal. As the deflection coefficients may be
different, it will be required to select between the
deflection coefficients of channel I and II. Please note
item
CHI/II (35)
.
Addition (ADD) mode.
In
ADD
(addition) mode normally two input signals are
displayed as one signal (sum or difference). As the result
can only be determined if both (calibrated) deflection
coefficients are equal, the
CHI/II (35)
selection function
is deactivated. In that case the readout indicates
”
∆∆∆∆∆
V...”
without any additional channel information. Different
deflection coefficient settings or uncalibrated deflection
coefficient(s) are indicated in the readout as
”Y1<>Y2”
.
item 2: XY mode.
In
XY
mode the instrument is automatically set to
∆∆∆∆∆
V
measurement. The deflection coefficient selected for
each channel may be different, thus as in
DUAL
mode
the
∆∆∆∆∆
V
cursor measurement requires a channel selection.
Under channel I (Y signal) measuring condition the cursor
lines are displayed as horizontal lines and the readout
displays
”
∆∆∆∆∆
VY...”
. Briefly pressing the
CHI/II (35)
pushbutton selects
channel II
(X signal) measuring. Then
the cursor lines are displayed as vertical lines and the
readout indicates
”
∆∆∆∆∆
VX...”
.
∆∆∆∆∆
t:
In time or frequency measurement condition two vertical
cursor lines are displayed. The measurement result is
indicated as
”
∆∆∆∆∆
t...”
(time measurement) or
”f...”
(frequency measurement).
Please note item (36) 1/
∆∆∆∆∆
t
.
NOTE:
For frequency measurement, the distance between
the cursors must equal exactly one signal period.
In
XY
mode the time base is switched off. Consequently
time or frequency measurement is disabled.
