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Measuring Instruments
435B
HP 435B Service Manual
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M
o
d
e
l
435
Β
Ad
j
u
st
m
e
n
ts
5-9
.
P
O
WER
ME
T
ER
AD
JU
ST
MEN
TS
W
IT
H
CA
L
I
BR
ATO
R
REFEREN
C
E
:
Se
rvi
ce
S
h
eets
2
a
nd
3
.
If
t
h
e
a
d
j
u
st
m
e
n
ts
a
r
e
to
be
co
n
s
id
e
r
e
d
v
a
lid,
t
h
e
P
owe
r
M
ete
r
mu
st
have
α
h
a
l
f-
h
o
ur
wa
rmu
p
a
nd
t
h
e
lin
e
voltage
mu
st
be
w
i
t
hin
+5
to
-10%
ο
of
n
o
min
a
l
.
DE
SC
RIPTI
O
N
:
1
.
Th
e
B
a
l
a
n
ce
co
n
t
r
o
l
i
s
ce
n
te
r
e
d
to
r
e
m
o
v
e
t
h
e
d
o
o
ff
set
in
t
r
o
du
ce
d
by
t
h
e
Au
to
Z
e
r
o
c
ir
c
ui
ts
.
2
.
Th
e
D
C
O
ff
set
co
n
t
r
o
l
r
e
m
o
v
es
a
ny
d
o
v
o
l
tage
in
t
r
o
du
ce
d
by
t
h
e
D
C
Ampli
fie
r
.
3
.
Th
e
C
AL
ADJ
co
n
t
r
o
l
i
s
u
se
d
to
set
α
l
e
v
e
l
o
f
+1
.00
Vd
c
at
r
ea
r
p
a
n
e
l
RE
CO
RDER
O
UTPUT
j
ac
k
w
i
t
h
α
full
sca
l
e
inpu
t
fr
o
m
t
h
e
M
o
d
e
l
11683
Α
R
a
n
ge
Ca
libr
ato
r
.
4
.
Th
e
M
ete
r
co
n
t
r
o
l
sets
t
h
e
m
ete
r
r
ea
din
g
to
full
sca
l
e
w
h
e
n
t
h
e
RE
CO
RDER
O
UTPUT
l
e
v
e
l
i
s
+1
.00
Vd
c
.
5
.
Th
e
Au
to
Z
e
r
o
O
ff
set
a
d
j
u
st
m
e
n
t
r
e
m
o
v
es
a
ny
d
o
v
o
l
tage
t
h
at
i
s
in
t
r
o
du
ce
d
by
t
h
e
Au
to
Z
e
r
o
c
ir
c
ui
ts
w
hil
e
t
h
e
ZER
O
switc
h
i
s
pr
esse
d
.
6
.
Th
e
B
a
l
a
n
ce
co
n
t
r
o
l
ce
n
te
r
s
t
h
e
Au
to
Z
e
r
o
c
ir
c
ui
t's
o
u
t
pu
t
v
o
l
tage
r
a
n
ge
.
Th
e
Au
to
Z
e
r
o
o
u
t
pu
t
i
s
f
o
r
ce
d
to
i
ts
n
egat
iv
e
e
x
t
r
e
m
e
.
Th
e
B
a
l
a
n
ce
Co
n
t
r
o
l
sets
t
h
e
RE
CO
RDER
O
UTPUT
v
o
l
tage
b
e
l
o
w
t
h
e
ce
n
te
r
(+1
.00
Vd
c)
by
o
n
e-
h
a
lf
t
h
e
tota
l
p
oss
ibl
e
v
o
l
tage
sw
in
g
.
R
A
N
G
E
CA
L
I
BR
ATO
R
435
Β
P
O
WER
ME
T
ER
ΝΟΤΕ
RE
CO
R
D
ER
O
U
T
PU
T
(RE
A
R
P
A
N
EL)
v
10
_11%,
E
Q
UIPMENT
:
Di
g
i
ta
l
V
o
l
t
m
ete
r
.
.
.
.
.
.
.
.
.
.
.
.
.
.
HP
3455A
R
a
n
ge
Ca
libr
ato
r
.
.
.
.
.
.
.
.
.
.
.
.
.
.
HP
11683
Α
(O
NLY)
2
.
Set
t
h
e
P
o
w
e
r
M
ete
r
s
wi
tc
h
es
as
f
o
ll
o
w
s
:
C
AL
FA
C
T
O
R
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
100%
ο
RAN
G
E
p
os
i
t
i
o
n
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
fully
cw
P
O
WER
REF
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
O
FF
DIGITA
L
V
O
L
T
ME
T
ER
F
igure
5-5
.
P
owe
r
M
eter
A
d
j
u
stme
n
t
Setu
p
wit
h
Cali
br
ato
r
PR
OC
EDURE
:
1
.
Set
t
h
e
P
o
w
e
r
M
ete
r
LINE
s
wi
tc
h
to
O
FF
a
nd
a
d
j
u
st
t
h
e
m
ec
h
a
ni
ca
l
M
ete
r
Z
e
r
o
co
n
t
r
o
l
f
o
r
α
m
ete
r
r
ea
din
g
o
f
z
e
r
o
.
49
51
Table of Contents
Table of Contents
4
General Information
9
Introduction
9
In Struments Covered by Manual
9
De Sc R Iptio N
9
O P B Tio N S
10
Atte Ry
11
Sa F et y Co N S ID E R at I O N
11
HP M Odel 435 Β a
11
R Ecommend Ed Test Equipment
11
I Nstall Atio N
13
Introduction
13
Preparation for Use
13
T I a L in S P Ect I O N
13
Mete R
14
Ower Cable
14
Oltage Selection
14
L Ect I O N
14
Interconnections
14
L I N E V Oltage Selection
14
Operat Ing Environment
15
B Ench O Peration
15
F R Ac K Moun Ting
15
M Ains Plu Gs Available
15
B Atte Ry Installation
16
Ow er Mete R
16
3-12 . Battery
20
Rea R Pa N E L Co N Trol S, Connectors and Ind Icato R S
22
Oper Ator's C He Cks
23
O Per Ating Instru Ct I O N S
25
Per Atio N
26
Specified Uncertainties
27
Calculating M
29
Eas Ureme Nt un Certa Inties
29
Mismatch un Certai Nties
30
Calculating M Eas Ureme Nt un Certai Nty
31
Introduction
32
In Eas
32
R St Case
32
CC Ur
32
Ac Ur
32
Perf O Rm an Ce te Sts
34
Eco Rd
34
Rf Rm Ce Tests
34
Power Reference
34
Est
35
Z Ero Carryover Test Set up
35
Erform Ance Est
37
Est
38
Ad Ju St Men Ts
40
Introduction
40
N S
40
Ad J
40
Locations
40
Specifications
40
Actory Selected Co Mponents
40
Ower Reference Oscillator Level Adjustment
42
P Ower Reference Osc Ill Ator Level
43
Multivibrator Adjust Ment
45
Ower Meter Adjustments with 50Ω P
47
P Ower Meter Ad
47
Owe R Sensor
48
O W E R M Ete R Ad J U St M E N Ts Wi T H Ca Libr Ato R
50
With Calibrator
50
Repl Ac
52
Section E ABLE P V I a RTS
52
Introduction
52
Abbreviations
52
E Pl Acea Bl E P
52
Actory Se Lecte D Parts (*)
52
Orderin G in St Ructions
52
Arts Provi Sioning
52
Epl Acea Ble Parts
52
Ma Nu al Chan G es
63
Introduction
63
Manual Change in Structions
63
Servic E
65
Introduction
65
Sa F et y Co N S ID E R at I O N
65
H Eets
65
Fr O N T
69
Ower Sensor
77
Sc Hem at IC
78
Ge Neral Se Rvi Ce Inf Orm at Ion
79
Ca Libr Ato R
79
Oa Rd S
81
Ρ/Ο Α4 Ass Embly
82
Ρ/0 Α
86
P Ower S Upply
89
Operational Amplifiers
90
Ρ/Ο Α4 Assem Bl y
92
Ρ/Ο Α4 Ass Embly
99
Ower Refere Eference Assembly
107
Sc Hematic Diagram
107
Ocatio Ns
108
Ero
110
5
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HP 435B Specifications
General
Brand
HP
Model
435B
Category
Measuring Instruments
Language
English
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