Readout Display; Readout Display Locations - Tektronix 2247A Operator's Manual

Operators Familiarization ·.'°
1ST OR LEFT
VERTICAL
GRATICULE LINE
~
11 TH OR RIGHT
VERTICAL
GRATICULE LINE
/4
I
./"{r_ ··--+---+---+--+--+--+---+---+-------+----l
RISE AND CENTER
FALL TIME HORIZONTAL
MEASUREMENT - GRATICULE
PERCENTAGE ,__ . . . .
--+-+----+---+--,........_ _ _ _ _
--+-_____,
LINE
MARKERS . . . .
~{t .
I
CENTER
VERTICAL
GRATICULE
LINE
Figure 3-1. Graticule measurement markir;,gs.
6556- 11
To Improve the accuracy of the estimate, position the display to take
advantage of the O. 2 division minor graticule markings on the center
graticule lines. Also position one of the measurement points of the
waveform as preclsely as possible on one of the major graticule marks to be
used as a measurement reference point .
Readout Display
The crt readout display Indicates how the instrument controls are set up .
No physical markings are on the rotating switches and control knobs to
Indicate the control setting. A key to the location and type of readout infor-
mation displayed is illustrated in Figure 3-2.
3-2
2247 A Operators
I
I
I
I
Operators Familiarization
CH 1
UNCAL
,oo
I
MEASUREMENT NAME
OR ERROR MESSAGE
80
--+---+---+----t--+-----,i-----t-----r-----r-7
~----4---+--CH3 CH4
VOL TS/DIV VOL TS/DIV
CH2
COUPLING
INPUT COUPLING ,
SYMBOLS
AC= -
DC=
GND
=
rh
(
Figure 3-2. Readout display locations.
2247 A Operators
VALUE
ERROR
MESSAGE
B SEC/DIV
OR X-Y MODE
- 1
6373- 10
3-3