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Operating Instructions—P6047
SECTION
2
OPERATING INSTRUCTIONS
General Information
The P6047
Probe enables you to connect an
oscilloscope into
a
circuit with
minimum
loading
and without impedance matching.
Due
to slight
variations
in
input
capacitance
between instru-
ments, even of the some type,
it
is
necessary
to compensate the probe whenever changing
from
one instrument to another. Recheck com-
pensation before making critical measurements.
Lack
of compensation can cause measurement
error since both
waveshape
and amplitude of
the display
are
affected.
The
probe
is
provided
with
an adiustment to match the probe time con-
stant to the time constant of the instrument.
The
following procedure should be used to compen-
sate the probe.
Compensation
1.
Set the oscilloscope
calibrator
for an output
of suitable amplitude.
2.
Touch the probe tip to the
calibrator
output
connector.
3.
Set the sweep rate to display several cycles
of the
calibrator
signal.
4.
Through the hole
in
the compensating box
cover, rotate the
capacitor
(C9)
with a small non-
conducting screwdriver to obtain a flat-top pres-
entation of the
calibrator
output signal. See
Fig.
2-1.
NOTE
The
P6047 Probe has been factory-cali-
brated
for oscilloscopes having an
in-
put
capacitance
of 20 picofarads.
The
high
frequency response of the probe
should be checked periodically, or when
changing
from
one oscilloscope input
capacitance
to another.
Refer
to the
Calibration section of
this
manual.
INCORRECT
ACCESSORIES
Bayonet Ground
Adapter
The
Bayonet Ground
Adapter
provides
a
con-
venient means of connecting the probe to the
signal source when
a
ground point
is
nearby.
Place the ground pin on the ground connection
and push down
until
the probe tip contacts the
signal source.
Ground Lead
The
Ground Lead clips to the probe between
the probe body and the
cable
assembly.
Use
the
short Ground Lead whenever possible, especially
when observing high-frequency waveforms.
@i
CORRECT
Fin
2-1
Fromm
INCORRECT
Insulating Sleeve
When the ground lead
is
connected to the
probe, place the insulting sleeve over the ex-
posed connection to avoid short circuits.
Miniature Alligator
Clip
The
insulated Alligator
Clip
screws into the
Ground Lead.
Hook
Tip
The
Hook
Tip
provides
a
stable means of hold-
ing
onto
a
test point.
2-1
Summary of Contents for 010-0211-00
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