HP 4262A User Manual

Section III
Figure 3-6
Model 4262A
7. Rotate L ZERO ADJ control until inductance readout is 000 counts on LCR DISPLAY.
10.
11.
12.
Note
To achieve more critical zero adjustments,
when 10kHz test signal frequency is used, per-
form the capacitance and inductance zero off-
set adjustments (steps 4, 5, 6 and 7) at 10kHz.
Remove shorting lead from 16061A.
Select desired FUNCTION, either L, C or R/ESR.
Connect sample to be measured (L, C or R) to Test Fixture.
Model 4262A will automatically display value of unknown.
Note
If O-F, U-CL, minus (-) or blank display occurs,
see Table 3-3 for solution. Measured values for
semiconductor devices are sometimes unreliable
when TEST SIGNAL LOW LEVEL pushbutton
is in its normal (1V) state (button lamp is not
lit). In these instances, follow Figure 3-8 for
semiconductor device measurement.
Note
If manual triggering is required, press HOLD/
MANUAL button. Each time the button is
pressed, the instrument is triggered.
If internal DC bias is required, set DC BIAS switch to 1.6V, 2.2V or 6V: If not, OFF
position should be selected.
Note
DC bias application may only be used for capa-
citance measurements.
CAUTION
POSITIVE POLE OF ELECTROLYTIC CAPA-
CITOR MUST BE CONNECTED TO HIGH
TERMINALS AS PLUS BIAS VOLTAGE IS
APPLIED TO HIGH TERMINALS WITH RE-
SPECT TO LOW TERMINALS.
Note
An external bias voltage up to +40V may be
applied to EXT DC BIAS rear panel connector.
Connect DC power supply to EXT DC BIAS
connector. Set DC BIAS switch to EXT.
3-16
.

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English