Adjusting An Attenuator Probe - Philips pm3232 Instruction Manual

100
3.5.3.
1.
Technical data
Attenuation
1:
10
±3
%
Input
impedance
10
MOhm//10 pF
Max.
permissible input voltage 1000 Vp.p
Maximum
d.c.
component 500
V
with the blocking
capacitor included into the
circuit.
3.5.3.
2.
Adjustment
(Fig. 3.25.)
—
Unscrew
the probe
locking
nut by
turning
it
anit-clockwise
—
Rotate the probe body
to
change
the capacitance while watching
the display for the desired
waveform
—
When
compensation
is
completed,
carefully turn the locking nut clockwise,
to lock
it
without
disturbing
the
adjustment
The
attenuator probe
causes distortion
if it
has not been properly
adjusted.
over
compensated
correct
under
compensated
Fig.
3.25.
Adjusting an atttenuator probe