Tektronix 2246 User Manual

Measurement Processes and Applications— 2246 Operators
Table 6-2
Behavior for Horizontal MODE Changes
Measurement
incompatible
Mode
Horizontal
Modes
Horizontal
Modes
l-
SEC
+l,
I+
1/SEC
+1,
l-
PHASE
-l
X-Y
DC,
+PEAK,
—
PEAK,
PK-PK
ALT,
B
GATED
+PEAK,
GATED
—
PEAK,
GATED
PK-PK
ALT,
B,
X-Y
before the delay-time readout. The readout value displayed
is the delay time between the A trigger and the time a B
trigger can be accepted by the trigger system. A question
mark (?) will also appear in front of the delay time readout
for delay measurements when the DELAY time is set to
0.25 division or less from the beginning of the sweep.
If the oscilloscope in not triggered when a gated voltage
measurement mode is selected, the following error mes-
sage is displayed: “LO REP RATE — STILL TRYING.”
This can happen if the selected trigger channel has no
trigger signal applied in NORM Trigger MODE or if the’
Trigger LEVEL control is not set to obtain a triggered
~~
display.
An
improperly
triggered
display
in
either
AUTO
' LEVEL or AUTO Trigger MODE will cause the measure-
ment readout value to be unstable, but no error message
will be displayed.
MEASUREMENT BEHAVIOR IN
SINGLE SEQUENCE MODE
The following measurements run continuously during
SGL SEQ Trigger MODE: DC, +PEAK, — PEAK, PK-PK,
l- VOLTS -l, rh VOLTS I, I- SEC 1, l- 1/SEC 31, and
l- PHASE =. |
The readout and/or cursors are displayed briefly during
single sequence mode for making a photographic record
(or they may be configured to remain on—see the "SER-
VICE MENU” discussion). The displayed readout is the
value of the measurement at the instant it is displayed.
GATED +PEAK, GATED — PEAK, and GATED PK-PK
measurements are not available during single sequence
mode and will be canceled if active when SGL SEQ is
selected.
6-6
B Trigger AUTO LEVEL acquisitions do not occur when
the A Trigger MODE is SGL SEQ. <
SERVICE MENU
The SERVICE menu contains operating choices not
normally
accessed
by
the
operator.
Most
of
the
choices
are for diagnostics, troubleshooting, and calibration. Expla-
nation of those choices are left to the servicing documen-
tation. One of the INTERNAL SETTINGS menu choices
and the CONFIGURE menus choices, however, are useful
to the operator and are explained here.
Pressing the top and bottom menu selection buttons
brings up the SERVICE menu with the selections shown in
' Figure 6-4.
The up and down arrow buttons move the underline
(seen under SERVICE MENU when first called up) through
SERVICE. MENU/
DIAGNOSE
CONFIGURE
INTERNAL SETTINGS MENU/
FRONT PANEL MENU/ |
PROC BOARD MENU/ QUIT
MAIN BOARD MENU/
Figure 6-4. Service Menu.
os

Tektronix 2246 Specifications

General

Brand	Tektronix
Model	2246
Category	Test Equipment
Language	English