HP 4262A - Page 118

Section V
Model 4262A
Paragraph 5-24
ADJUSTMENT
5-24. A14 PHASE DETECTOR & INTEGRATOR ADJUSTMENT.
PURPOSE:
These adjustments eliminate phase error in the phase detector and properly set
timing of zero detector to minimize measurement error.
To Chassis
To A4 TP3
L4 DC_VOLTMETER
[©] 00000000
wlsls) ’© \
0 DOdd @O TOOd
s BBON 880 688 EDDD 0ooo '@@/
Figure 5-9. A14 Phase Detector & Integrator Adjustment.
EQUIPMENT:
DC Voltmeter ................... HP 5300A/w 5306A
HP 16361A
Note
If DUT box is not available, it is recommend-
ed that the following DUT’ be used as
standards:
DUT
Values of components
Calculated D
(1kHz)
Required
Calibration
Accuracy
—
C:
10nF
(HP
P/N:
0160-0408)
D < 0.001
0.1%
—
[C:
1000pF
(HP
P/N:
0160-3766)
D < 0.001
0.1%
R
C: 10nF
(HP P/N: 0160-0408)
R: 10k
(HP P/N: 0698-6360)
1.592
D:0.1%
The components listed above should be calibrated before use. Refer to
“Calibration of DUT's” on page 4-4 for proper DUT calibration method.