Measurements In Single Sequence Mode; Section 3-Operators Familiarization (Cont); Service Menu Features; Configure Menu - Tektronix 2247A Operator's Manual

,0
Operators Familiarization .
The following measurements cannot occur when the SEC/DIV VAR control
Is out of the detent position: ~ SEC
•
I. I+-
1 /SEC
•
I,
I+-
PHASE
• I,
and
I+-
SET
360°
•
1.
The displayed error message Is MVAR SECS/DIV OUT OF
DETENT."
When In ALT or B Horizontal MODE, no C/T measurement Is running, and
the
B
Trigger MODE Is not RUNS AFTER, a greater-than symbol
(>)
wlll
appear before the delay-time readout. The readout value di~played Is the
delay time between the A trigger and the time a
B
trigger can be accepted
by the trigger system. A question mark (?) wlll appear In front of the delay
time readout for delay measurements when the DELAY time Is set to O. 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 message Is displayed: MLO 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 measurement readout value to be
unstable, but no error message will be displayed.
Measurements in Single Sequence Mode
The following measurements run continuously during SGL SEQ Trigger
MODE: DC, +PEAK, -PEAK, PK-PK,
I+-
VOL TS
•
I,
and
n7
VOL TS
•
I.
The
following run continuously in the A Horizontal MODE (with cursors) :
~
SEC
•
I,
I+-
1 /SEC
•
I,
and
~
PHASE
•
I .
Of the CIT measurements ,
only TOTALIZE runs continuously In SGL SEQ mode.
For all other CIT measurements, Including
~
SEC
•
I, I+-
1/SEC
•
I,
and
I+-
PHASE
•
I
In ALT or
B
Horizontal MODES, one measurement cycle wlll
be performed and the result held In the readout display (If readout Is con -
figured to remain on In SGL SEQ mode) each time SGL SEQ Mode Is
reentered.
The readout and/or cursors are displayed briefly during SGL SEQ Mode for
making a photographic record ( or they may be configured to remain on-
see the discussion on Configure Menu In the MServlce Menu Features" part
of this section). The displayed readout Is the value of the measurement at
the Instant It Is displayed.
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2247 A Operators
I
I
I
I
I
I
I
Operators Familiarization
GATED +PEAK, GATED -PEAK, and GATED PK-PK measurements are
not avallable during single sequence mode and wlll be canceled If active
when SGL SEQ Is selected.
B Trigger AUTO LEVEL acquisitions do not occur when the A Trigger
MODE Is SGL SEQ.
Service Menu Features
Most of the Items In the SERVICE MENU are for diagnostics,
troubleshooting, and calibration. However, there are four menu selections
that are also for operational use: CONFIGURE, SELF CAL
MEASUREMENTS, MAKE FACTORY SETTINGS, and LOAD STORE/
RECALL SETUPS. Press the top and bottom mE3nu-ltem select buttons to
display the SERVICE MENU.
SERVICE MENU/
DIAGNOSE
CONFIGURE
SELF CAL MEASUREMENTS
INTERNAL SETTINGS MENU/
EXERCISER MENU/
Service Menu
MENU
'
QUIT ,
.J
J
Press the buttons opposite the displayed up- and down-arrows to move the
displayed underline to the desired menu Item of CONFIGURE, SELF CAL
MEASUREMENTS, or INTERNAL SETTINGS MENU. Press RUN or
SELECT. At any point In the CONFIGURE routlne,,select END to return the
display to the SERVICE MENU. Select QUIT from the INTERNAL SETTINGS
MENU or the main SERVICE MENU to return to ·the oscilloscope mode.
Configure Menu
The operating-mode features In the CONFIGURE menu seldom need to be
changed.
2247A Operators
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