HP 4262A User Manual

Section V Model 4262A
Table 5-1
Table 5-1. Adjustable Components.
Reference
Desi
gt:
ator
Name
of
Control
Purpose
(Paézg
51;6_520)
+12V
To
set
output
of
+12V
dc
power
supply.
To eliminate any dc offset voltage in A12 Range Resistor
Al12R1
<
—_—
Amplifier
in
order
to
maximize
measurement
accuracy
on
(Para. 5-22) each range
A12C3
To
eliminate
measurement
error
due
to
stray
capacitances
on
p
y
25
R
A12
board
assembly.
Maximizes
measurement
accuracies
of
(Para.
5-25)
10kHz
measurement.
Al12C11
To
properly
set
C
ZERO
ADJ
control
range.
(Para. 5-26)
To eliminate measurement error due to phase error in A12
A13C1
p
Range Resistor Amplifier output. Maximizes measurement
(Para. 5-25)
: accuracies of 10kHz measurement.
Al13R1
(Para 5-23) OFS-1
Al13R2
OFS-2
To
eliminate
any
dc
offset
voltage
in
A13
Process
Amplifier
(Para.
5-23)
in
order
to
maximize
measurement
accuracies
on
each
range.
A13R66
(Para. 5-23) OFS-3
A13R67
OFS-4
To
adjust
reference
phase
of
phase
detector
to
minimize
(Para.
5-24)
)
measurement
errors.
Al14R1
ZOF
To
adjust
timing
of
integrator
output
zero
detection
in
order
(Para.
5-24)
to
accurately
set
full
scale
display
count.
Al14R15
APAO
To
adjust
auto
phase
adjustment
circuit
output
level.
Minimizes
(Para.
5-24)
measurement
errors
due
to
phase
detector
error.
(PA23£‘)11221
)
VR1
T(t);e
prosecxl'ly‘
set
.gperating
power
voltage
to
nanoprocessor
ara 5- integrated circuit.
5-2

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English