HP 4262A User Manual

Model 4262A Section V
ADJUSTMENT
Note dissipation factor readout on 4262A DQ display.
Change 4262A CIRCUIT MODE to SER.
Adjust
A12C3
so
that
capacitance
readout
on
4262A
CRL
display
is
the
calibrated
value
of
DUT
£2
counts
and
the
difference
in
dissipation
factor
readout
between
steps
¢
and
d
is
less
than
15
counts.
Note
If adjustment is not successful, change A12C3
to 5.5/18pF capacitor (HP P/N: 0121-0036)
and try adjustment again.
(4) A12C2 Adjustment.
a.
5-20
Connect the following DUT to 16061A.
C: 100nF (HP P/N: 0160-4113)
C R
—AHW—
R: 3002 (HP P/N: 0698-6346)
Set 4262A CIRCUIT MODE to PRL.
Note dissipation factor readout on 4262A DQ display.
Change 4262A CIRCUIT MODE to SER.
Verify that 4262A displays the following:
1)
Capacitance
readout
of
CRL
display
should
be
the
calibrated
value
of
DUT
+2
counts.
2)
The
difference
in
dissipation
factor
readout
between
steps
¢
and
d
should
be
less
than
£5
counts.
If
either
1)
or
2)
are
not
satisfied,
change
A12C2
to
an
appropriate
value
selected
from
the
adjustment
range
below:
30pF HP P/N: 0160-2139
39pF HP P/N: 0140-0190
51pF HP P/N: 0160-2201
62pF HP P/N: 0140-0205
Note
Nominal value is 39pF. Increasing A12C2 by
10pF decreases capacitance and dissipation
factor readouts 2 and 3 counts respectively.

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English