Tektronix 2221 User Manual

Operator's Checks and Adjustments - 2221 Operators
1. Preset the instrument controls and obtain a baseline
trace as described in " Initial Setup . "
C.
6. Check the waveform display for overshoot and
rounding
( see
Figure 5-1 ) ; if
necessary
, use a
small -
bladed
screwdriver
to
adjust the
probe
compensation for a
square
front corner on the waveform .
2. Use the Channel 1 POSITION control to move the
baseline trace to the center horizontal graticule line .
7. Remove the Channel 1 probe tip from the PROBE
ADJUST
connector
.
|
3. If the baseline trace is not parallel to the center hor
izontal graticule line , use a small - bladed screwdriver or
alignment tool to adjust the TRACE ROTATION control to
align the trace with the graticule line .
8. Insert the Channel
2 probe
tip into the
PROBE
ADJUST
connector
.
9. Set the VERTICAL MODE to CH 2 .
PROBE COMPENSATION
10. Use the CH 2 POSITION control to vertically center
the
display .
Misadjustment of probe compensation is a possible
source of measurement error . The attenuator probes are
equipped with a compensation adjustment . To ensure
measurement accuracy , always check probe compensation
before making measurements . Use the following steps to
adjust the probe compensation :
11. Check the waveform display for overshoot and
rounding ( see
Figure 5-1 ) ;
if necessary ,
use a small -
bladed
screwdriver to adjust the probe compensation for a square
front corner on the waveform .
NOTE
1. Preset the instrument controls and obtain a baseline
trace as
described
in "
Initial Setup . "
Refer to the instruction manual supplied with the
probe for more complete information on the probe
and
probe
compensation .
2. Connect the two 10X probes ( supplied with the
instrument ) to the CH 1 OR X and CH 2 OR Y input con
nectors . Observe that the CH 1 VOLTS / DIV readout
changes from 50 mV to 0.5 V when the 10x probe is
attached to
the CH 1
OR X
input
.
CORRECT
FLAT
100
3.
Remove the hook tip
from the
end of each
probe .
90
NOTE
OVER
COMPEN
SATED
( OVER
SHOOT )
While the probe tip is in the PROBE ADJUST con
nector , use care not to to break off the probe tip .
10
1
ili
UNDER
COMPEN
SATED
(
ROUND
ING )
4. Insert the Channel 1 probe tip into the PROBE
ADJUST
connector
.
で
j
( 465 / DM - 0-5
)
2906-13
5. Use
the CH 1
POSITION
control
to
vertically
center
the display . If necessary , adjust the TRIGGER LEVEL con
trol to obtain a stable display on the S ( OUT ) SLOPE .
Figure
5-1
.
Probe
compensation .
C
5-2
1

Tektronix 2221 Specifications

General

Brand	Tektronix
Model	2221
Category	Test Equipment
Language	English