HP 4262A - Page 88

Model 4262A
PERFORMANCE TESTS
Section IV
10.
. Rotate C ZERO ADJ control fully cw.
. Verify that capacitance readout on 4262A LCR display is within 0.00 to
0.30 counts.
. Disconnect shorting bars from 4262A UNKNOWN terminals and connect Test
Leads
(HP
P/N
16361-61605)
between
4262A
UNKNOWN
terminals
and
16362A
DUT
Box
as
shown
in
Figure
4-7.
Note
If 16362A is not available, connect an 18pF
capacitor (HP P/N 0160-2263) directly to
UNKNOWN terminals (without disconnecting
shorting bars).
.Set 16362A LCR RANGE to 19pF.
. Note capacitance readout on 4262A LCR display.
. Rotate C ZERO ADJ control fully ccw.
.
Verify
that
capacitance
readout
on
4262A
LCR
display
reduces
count
more
than
10.30 counts as compared to count obtained in step 7.
Remove Test Leads (or DUT) from UNKNOWN terminals.
(2) L ZERO ADJ test
11.
12.
13.
14.
15.
16.
17.
18.
Set 4262A FUNCTION to L.
Connect
shorting
bars
on
4262A
UNKNOWN
terminals
for
doing
a
two
terminal
measurement.
Connect
a
shorting
lead
to
UNKNOWN
terminals
so
that
H
and
L
terminals
are
short
circuited.
Rotate L ZERO ADJ control fully cw.
Verify that inductance readout on 4262A LCR display is within 0.00 and
0.02 counts.
Disconnect shorting lead from 4262A UNKNOWN terminals and conpect
a 5.6yH inductor (HP P/N 9100-1618) directly to UNKNOWN terminals
as a DUT (without disconnecting shorting bars).
Note
inductance
readout
on
4262A
LCR
display.
Rotate
L
ZERO
ADJ
control
fully
ccw.
Verify
that
inductance
readout
on
4262A
LCR
display
reduces
count
more
than
1.02
counts
as
compared
to
count
obtained
in
step
16.
4-21