Instrument Cooling; Oscilloscope Displays; Introduction; Baseline Trace - Tektronix 2213 Instruction Manual

3. Wait several seconds fo r the input coupling capacitor
to discharge.
4. Connect the probe tip to the signal source.
5. Wait several seconds fo r the input coupling capacitor
to charge.

INTRODUCTION

The procedure in this section w ill allow you to set up
and operate your instrument to obtain the most commonly
used oscilloscope displays. Before starting this procedure,
verify that the POWER switch is OFF (push button out),
then plug the power cord into an approved ac-power-source
outlet.

BASELINE TRACE

First obtain a baseline trace.
1. Preset the instrument front-panel controls as follows:
Display
AUTO INTENSITY
AUTO FOCUS
Vertical (Both Channels)
AC-GND-DC
VO LTS/DIV
VO LTS/D IV Variable
VE R TIC A L MODE
INVERT
POSITION
Horizontal
SEC/DIV
SEC/DIV Variable
HORIZONTAL MODE
X10 Magnifier
POSITION
DELAY TIME
Range Selector
MULTIPLIER

OSCILLOSCOPE DISPLAYS

Fully counterclockwise
(minimum)
Midrange
AC
50 m (IX )
CAL detent
(fully clockwise)
CH 1
O ff (button out)
Midrange
Locked together at 0.5 ms
CAL detent
(fully clockwise)
NO DLY
O ff (variable knob in)
Midrange
0.2 ms
Fully counterclockwise
Operating Instructions— 2213 Service
6. Set the AC-GND-DC switch to AC. The display w ill
remain on the screen, and the ac component o f the signal
can be measured in the normal manner.

INSTRUMENT COOLING

To maintain adequate instrument cooling, the ventila­
tion holes on both sides and rear panel o f the equipment
cabinet must remain free o f obstructions.
Trigger
VAR HOLDOFF
SLOPE
LEVEL
MODE
EXT COUPLING
SOURCE
I NT
2. Press in the POWER switch button (ON) and allow
the instrument to warm up fo r 20 minutes.
3. Adjust the AUTO INTENSITY control fo r desired
display brightness.
4. Adjust the Vertical
controls to center the trace on the screen.

SIGNAL DISPLAY

1. Obtain a baseline trace.
2. Apply a signal to either vertical-channel input con­
nector and set the VER TICAL MODE switch to display
the channel used. To display two time-related input signals
use both vertical-channel
BOTH VER TICAL MODE; then select either A L T or
CHOP, depending on the frequency o f input signals.
3. Adjust the AUTO INTENSITY control fo r desired
display brightness. If the display is not visible w ith the
AUTO INTENSITY control at midrange, press the BEAM
FIND push button and hold it in while adjusting the
appropriate VO LTS/DIV switch (es) to reduce the vertical
NORM (fully counter­
clockwise)
J ~ (lever up)
Midrange
AUTO
AC
I NT
VERT MODE
and Horizontal POSITION
input connectors and select
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