Tektronix 2247A

Operators Familiarization
1ST OR LEFT 11TH OR RIGHT
VERTICAL VERTICAL
GRATICULE LINE GRATICULE LINE
™ NN 1 + a
RISE AND fff CENTER
FALL TIME HORIZONTAL
MEASUREMENT seepetesteeeed-¢— GRATICULE
PERCENTAGE | __ fb LINE
MARKERS — {|
feo decal
CENTER
VERTICAL
GRATICULE
LINE
6556-11
Figure 3-1. Graticule measurement markings.
To improve the accuracy of the estimate, position the display to take
advantage of the 0.2 division minor graticule markings on the center
graticule lines. Also position one of the measurement points of the
waveform as precisely 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 contro! 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 2247A Operators