22
Subject to change without notice
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 CH I/II
(40)
.
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
CH I/II (40)
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 (X signal) measuring condition the cursor
lines are displayed as vertical lines and the readout
displays
“
∆∆∆∆∆
VX...”
. Briefly pressing the
CH I/II (40)
pushbutton selects channel II (Y signal) measuring. Then
the cursor lines are displayed as horizontal lines and the
readout indicates
“
∆∆∆∆∆
VY...”
.
∆∆∆∆∆
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 (40) 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.
(43) CURSOR
- Center biased lever
The active cursor line (in track mode: both lines) can be
shifted in the required direction, until the graticule limits
are reached. The directions are marked on the front panel
and depend on the selected measurement (
∆∆∆∆∆
V,
∆∆∆∆∆
t or 1/
∆∆∆∆∆
t = f
).
Which of two shift speeds is used, depends on how far
the CURSOR knob is pressed. With slight knob pressure
the cursor line(s) moves slowly. If the knob is pressed to
the full extent the cursor moves fast.
(44) CAL.
- Pushbutton and concentric socket.
A squarewave signal of 0.2Vpp ±1% is available from the
socket for probe adjustment purposes.
The signal frequency depends on the pushbutton setting.
If the pushbutton is released it is approx. 1kHz and can be
switched over (depressed) to approx. 1MHz. The pulse
duty factor may deviate from 1:1 and the frequency is not
calibrated.
(45) CT
- Pushbutton and banana jack.
Pressing the pushbutton switches the instrument over
from oscilloscope to component test mode and vice
versa.
In component test mode, all controls are deactivated with
the exception of the
CT
button,
AUTOSET (2)
and
INTENS (4)
. All LEDs except
“A”
or
“RO”
(associated
with the
INTENS
knob) are dark. The readout displays
only
“CT”
in this condition.
One test lead is connected to the CT socket. The second
test lead uses the ground socket
(34)
.
Please note
“Component Tester”.
The maximum test voltage is approx. 20Vpp under open
circuit conditions, while the max. test current under short
circuit condition is approx. 20mApp.
Menu
The instrument software contains several menus. The controls
regarding the menus are described under item
(39) PRINT /
MENU
in section “Controls and Readout”.
The following menus, submenus and items within the
submenus are available:
1.
MAIN MENU
1.1
CALIBRATE
Information regarding this can be found in the section ”Service
Instructions” item ”Adjustments”.
1.2
SETUP
This menu allows changes to the default settings regarding the
instrument behavior during operation. The
SETUP
menu contains
the submenus
”MISCELLANEOUS”
and
”FACTORY”
.
1.2.1
MISCELLANEOUS
contains:
1.2.1.1
CONTROL BEEP ON/OFF
In OFF condition the acoustic signals actuated by the control
limits are switched off.
Note:
The default setting is ON. If different conditions are
required the setting must be performed each time after
switching the oscilloscope on.
1.2.1.2
ERROR BEEP ON/OFF
Acoustic signals indicating faulty control operation are
suppressed in OFF condition.
Note:
The default is ON. If different conditions are required
the setting must be performed each time after switching
the oscilloscope on.
1.2.1.3
QUICK START ON/OFF
In condition
ON
the
HAMEG
logo and the menus will not be
displayed after switching the instrument on. Then the
instrument is quickly ready for operation. To change from
QUICK START OFF
to
ON
, press and hold the
AUTOSET
button when switching the instrument on until the menus
become visible and change the setting from
ON
to
OFF
.
Menu
