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435B
HP 435B Service Manual
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M
o
d
e
l
435
Β
O
p
e
r
at
i
o
n
3-1
.
I
N
T
R
OD
U
CTIO
N
Thi
s
sect
i
o
n
pr
o
vid
es
co
mpl
ete
o
p
e
r
at
in
g
in
st
ru
c-
t
i
o
n
s
f
o
r
t
h
e
P
o
w
e
r
M
ete
r
.
Th
e
in
st
ru
ctio
n
s
co
n
s
i
st
o
f
.
p
a
n
e
l
f
eat
ur
es,
o
p
e
r
ato
r
's
c
h
ec
k
s,
o
p
e
r
at
in
g
in
st
ru
ct
i
o
n
s,
p
o
w
e
r
m
eas
ur
e
m
e
n
t
acc
ur
ac
y
a
nd
o
p
e
r
ato
r
's
m
a
in
te
n
a
n
ce
.
3-2
.
P
A
NEL
FE
AT
URE
S
Fr
o
n
t
a
nd
r
ea
r
p
a
n
e
l
f
eat
ur
es
o
f
t
h
e
P
owe
r
M
ete
r
a
r
e
d
esc
rib
e
d
in
Fi
g
ur
es
3-1
a
nd
3-2
.
Th
ese
fi
g
ur
es
co
n
ta
in
α
d
eta
il
e
d
d
esc
rip
t
i
o
n
o
f
t
h
e
co
n
t
r
o
l
s,
indi-
cato
r
s
a
nd
co
nn
ecto
r
s
.
3-3
.
O
PER
ATO
R
'S
C
HE
C
K
S
S
E
CTIO
N
III
OPERATION
m
atc
h
l
osses,
mi
s
m
atc
h
un
ce
r
ta
in
t
y,
in
st
rum
e
n-
tat
i
o
n
un
ce
r
ta
in
t
y
a
nd
ca
libr
at
i
o
n
un
certa
in
t
y
.
M
eas
ur
e
m
e
n
t
e
rr
o
r
s
as
hi
g
h
as
50%
ο
a
r
e
n
ot
o
nly
p
oss
ibl
e,
t
h
e
y
a
r
e
hi
g
hly
lik
e
ly
unl
ess
t
h
e
e
rr
o
r
so
ur
ces
a
r
e
und
e
r
stoo
d
a
nd,
as
mu
c
h
as
p
oss
ibl
e,
e
limin
ate
d
.
3-6
.
Sources
of
E
rror
an
d
M
easurement
U
ncertainty
RF
L
osses
.
So
m
e
o
f
t
h
e
RF
p
o
w
e
r
t
h
at
e
n
te
r
s
t
h
e
p
owe
r
se
n
so
r
i
s
n
ot
di
ss
ip
ate
d
in
t
h
e
p
o
w
e
r
se
n
s-
in
g
e
l
e
m
e
n
ts
.
Thi
s
RF
l
oss
i
s
ca
u
se
d
by
di
ss
ip
at
i
o
n
in
t
h
e
walls
o
f
w
a
v
eg
uid
e
p
o
w
e
r
se
n
so
r
s,
in
t
h
e
ce
n
te
r
co
ndu
cto
r
o
f
coa
xi
a
l
p
o
w
e
r
se
n
so
r
s,
in
t
h
e
di
e
l
ect
ri
c
o
f
ca
p
ac
i
to
r
s,
co
nn
ect
i
o
n
s
wi
t
hin
t
h
e
se
n
so
r
a
nd
r
a
di
at
i
o
n
l
osses
.
NOTE
I
f
t
h
e
in
st
rum
e
n
t
d
oes
n
ot
ope
r
ate
pr
op-
M
ismatc
h
.
Th
e
r
es
ul
t
o
f
mi
s
m
atc
h
e
d
imp
e
d
a
n
ces
e
rly
a
nd
i
s
be
in
g
r
et
urn
e
d
to
H
ew
l
ett-
b
etwee
n
t
h
e
d
e
vi
ce
und
e
r
test
a
nd
t
h
e
p
o
w
e
r
se
n
-
P
ac
k
a
rd
fo
r
service,
p
l
ease
co
m
p
l
ete
o
n
e
so
r
i
s
t
h
at
so
m
e
o
f
t
h
e
p
o
w
e
r
f
e
d
to
t
h
e
se
n
so
r
i
s
of
t
h
e
b
lu
e
r
epa
ir
tags
l
ocate
d
at
t
h
e
e
nd
r
eflecte
d
b
e
f
o
r
e
i
t
i
s
di
ss
ip
ate
d
in
t
h
e
l
oa
d
.
Mi
s-
of
t
hi
s
m
a
nu
a
l
and
attac
h
i
t
to
t
h
e
m
atc
h
es
a
ff
ect
t
h
e
m
eas
ur
e
m
e
n
t
in
t
w
o
w
a
y
s
.
in
st
rum
e
n
t
.
Fir
st,
t
h
e
ini
t
i
a
l
r
eflect
i
o
n
i
s
α
s
impl
e
l
oss
a
nd
i
s
ca
ll
e
d
mi
s
m
atc
h
l
oss
.
Seco
nd
,
t
h
e
p
owe
r
r
eflecte
d
Up
o
n
r
ece
ip
t
o
f
t
h
e
in
st
rum
e
n
t,
o
r
to
c
h
ec
k
t
h
e
fr
o
m
t
h
e
se
n
so
r
mi
s
m
atc
h
t
r
a
v
e
l
s
b
ac
k
up
t
h
e
P
o
w
e
r
M
ete
r
f
o
r
an
indi
cat
i
o
n
o
f
n
o
rm
a
l
o
p
e
r
at
i
o
n
,
t
r
a
n
s
mi
ss
i
o
n
lin
e
un
t
il
i
t
r
eac
h
es
t
h
e
so
ur
ce
.
f
o
ll
ow
t
h
e
o
p
e
r
at
i
o
n
a
l
pr
oce
dur
e
s
h
o
wn
in
Fi
g
ur
e
Th
e
r
e,
m
ost
o
f
i
t
i
s
di
ss
ip
ate
d
in
t
h
e
so
ur
ce
imp
e-
3-3
.
Th
ese
pr
oce
dur
es
a
r
e
d
es
i
g
n
e
d
to
f
a
mili
ar
iz
e
d
a
n
ce,
bu
t
so
m
e
o
f
i
t
i
s
r
e-
r
eflecte
d
by
t
h
e
so
ur
ce
t
h
e
o
p
e
r
ato
r
wi
t
h
t
h
e
P
owe
r
M
ete
r
a
nd
to
pr
o
vid
e
m
i
s
m
atc
h
.
Th
e
r
e-
r
eflecte
d
p
o
w
e
r
r
et
urn
s
to
t
h
e
an
und
e
r
sta
ndin
g
o
f
t
h
e
o
p
e
r
at
in
g
ca
p
a
bili
t
i
es
.
p
owe
r
se
n
so
r
a
nd
a
dd
s
to,
o
r
s
ub
t
r
acts
fro
m
,
t
h
e
in
c
id
e
n
t
p
o
w
e
r
.
F
o
r
all
pr
act
i
ca
l
purp
oses,
t
h
e
3-4
.
O
PER
ATI
N
G
I
N
ST
RU
CTIO
N
S
e
ff
ect
t
h
e
r
e-
r
eflecte
d
p
o
w
e
r
h
as
upon
t
h
e
p
o
w
e
r
Ge
n
e
r
a
l
o
p
e
r
at
in
g
in
st
ru
ct
i
o
n
s
a
r
e
co
n
ta
in
e
d
in
m
eas
ur
e
m
e
n
t
i
s
unpr
e
di
cta
bl
e
.
Thi
s
e
ff
ect
i
s
ca
ll
e
d
Fi
g
ur
e
3-4
.
Th
e
in
st
ru
ct
i
o
n
s
w
ill
f
a
mili
a
riz
e
t
h
e
mi
s
m
atc
h
un
ce
r
ta
in
t
y
.
o
p
e
r
ato
r
w
i
t
h
t
h
e
b
as
i
c
pr
act
i
ces
u
se
d
w
h
e
n
o
p
e
r-
I
n
st
r
umentation
Un
certainty
.
In
st
rum
e
n
tat
i
o
n
υη
at
in
g
t
h
e
P
o
w
e
r
M
ete
r
.
certa
in
t
y
d
esc
rib
es
t
h
e
a
bili
t
y
o
f
t
h
e
m
ete
rin
g
c
ir-
c
ui
ts
to
acc
ur
ate
ly
m
eas
ur
e
t
h
e
d
o
o
u
t
pu
t
fro
m
t
h
e
W
A
R
Ν
Ι
Ν
G
p
o
w
e
r
sensor's
p
o
w
e
r
se
n
s
in
g
d
e
vi
ce
.
In
t
h
e
P
owe
r
M
ete
r
,
t
hi
s
e
rr
o
r
i
s
l
ess
t
h
a
n
±1%
ο
.
1
I
t
i
s
imp
orta
n
t
A
ny
in
te
rru
pt
i
o
n
of
t
h
e
protective
to
r
ea
liz
e,
h
owe
v
e
r
,
t
h
at
α
1%
ο
m
ete
r
d
oes
n
ot
a
u
to-
(g
r
o
undin
g)
co
ndu
cto
r
(in
s
id
e
o
r
o
u
ts
id
e
m
at
i
ca
lly
g
iv
e
1%
ο
o
v
e
r
a
ll
m
eas
ur
e
m
e
n
t
acc
ur
ac
y
.
t
h
e
in
st
rum
e
n
t)
o
r
di
sco
nn
ect
in
g
t
h
e
P
ower
R
eference
Un
certainty
.
Th
e
un
ce
r
ta
in
t
y
o
f
protective
ea
r
t
h
te
rmin
a
l
i
s
lik
e
ly
to
t
h
e
o
u
t
pu
t
l
e
v
e
l
o
f
t
h
e
p
o
w
e
r
r
e
f
e
r
e
n
ce
osc
ill
ato
r
i
s
m
a
k
e
t
hi
s
in
st
rum
e
n
t
d
a
n
ge
r
o
u
s
.
In
te
n-
±0
.7%
ο
.
Thi
s
r
e
f
e
r
e
n
ce
i
s
n
o
rm
a
lly
u
se
d
to
ca
libr
ate
t
i
o
n
a
l
in
te
rrup
t
i
o
n
i
s
p
r
o
hi
b
i
te
d
.
t
h
e
s
y
ste
m
a
nd
i
s,
t
h
e
r
e
f
o
r
e,
α
p
a
r
t
o
f
t
h
e
system's
3-5
.
P
O
WER
ME
AS
UREMEN
T
ACC
UR
ACY
tota
l
m
eas
ur
e
m
e
n
t
un
certa
in
t
y
.
Α
p
o
w
e
r
m
eas
ur
e
m
e
n
t
i
s
n
e
v
e
r
fr
ee
fr
o
m
e
rr
o
r
o
r
un
ce
r
ta
in
t
y
.
Any
RF
s
y
ste
m
h
as
RF
l
osses,
mi
s-
'R
e
f
e
r
to
In
st
rum
e
n
t
acc
ur
ac
y
specification
in
Sect
i
o
n
Ι
w
h
e
nu
s
in
g
t
h
e
to
p
two
r
a
n
ges
.
17
19
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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