Initial Setup
Probe Compensation
Low-Frequency Compensation
Misadjustment
of
probe
compensation
is a
possible
source
of
measure-
ment
error.
The
attenuator
probes
are
equiped
with
compensation
adjustments.
For
the
best
measurement
accuracy,
you
check
probe
compensation
before
making
measurements
(see
Figure
2-1).
Use
the
following
procedure
to
check
and
compensate
the
probes.
Step
1.
Switch
the
instrument
on
and
obtain
a
baseline
trace.
Step
2.
Connect
the
two
supplied
10X
probes
to
the
CH 1 OR X
and
CH 2
ORY
input
connectors.
Step
3.
Connect
the
probe
tips
to
the
PROBE ADJUST
connector
and
the
probe
ground
leads
to
scope
ground.
Step
4.
Press
the
AUTO SETUP
button.
Step
5.
Set:
Step
6.
Step
7.
Step
8.
Step
9.
Vertical
MODE ........................ CH 1
CH 1 VOLTS/DIV .................... 0.1 V
CH 2 VOL TS/DIV .................... 0.1 V
Vertically center the
PROBE
ADJUST square wave signal.
If
necessary, adjust the Trigger
LEVEL
control to obtain a stable
display on the positive SLOPE.
Check the square-wave display for overshoot
and
rolloff
(see Figure
2-1).
If
necessary, use a small-bladed screwdriver or
alignment tool to adjust the compensation on the probe for a
square front corner on the square wave displayed.
Select the
CH
2 Vertical
MODE
to turn CH 2
on
in
the display.
Repeat step 6
and
7 for the probe on the CH 2
input
connector.
2212 User Manual
2-3
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