HP 4262A Operating And Service Manual page 38

Section III
Table 3-3
Model 4262A
Table 3-3. Annunciation Display Meanings.
LCR
DISPLAY
DQ
Indicated Condition
Action
|
0
-
F
m H
FUNCTION has been inappro¬
priately set.
Change 4262A FUNCTION to
L, C or R suitable for the
sample being measured.
Measured L or C value exceeds
1999 counts. DQ display indicates
that DQ measurement has been
omitted.
Set 4262A to:
CIRCUIT MODE: AUTO
LCR RANGE: AUTO
Measured R value exceeds 1999
counts.
Measured D/Q value exceeds the
upper range limit (1999 counts).
Try changing TEST SIGNAL
to 120, Ik or 10kHz.
Set 4262A DQ RANGE to
AUTO.
(any LCR
reading)
(overflowed)
(less than
SO counts)
Accuracy of LCR readings may
not be within specifications.
Try changing TEST SIGNAL
to 120, lk or 10kHz.
CIRCUIT MODE setting is not
suitable for the sample being
measured.
Set 4262A to:
CIRCUIT MODE: AUTO
LCR RANGE: AUTO
Try changing TEST SIGNAL
to 120, lk or 10kHz.
Measured L, C or R value is ex¬
tremely large or small compared
with the selected range.
When Measured L or C value is less
than 80 counts, DQ measurement
is omitted.
Set 4262A LCR RANGE to
AUTO. Try changing TEST
SIGNAL to 120, lk or 10kHz.
In ^ LCR measurement, the differ¬
ence between the preset value and
the measured value of the sample
exceeds -999 counts.
In ^LCR measurement, the cal¬
culated difference exceeds -999
counts. In addition, the value of
measured sample is less than 80
counts.
Minus display sometimes occurs
when sample having a value around
zero is measured.
Zero count display is meaning¬
ful when minus (-) display
repeatedly turns on and off.
Sometimes a minus display occurs
when a capacitor (or inductor) is
measured in L (or C) FUNCTION.
Change to appropriate
FUNCTION.
Offset adjustment signal applied is
too great (causes minus display).
Readjust offset signal for
proper magnitude.