HP 435B Service Manual

M o d
e
l
435
Β

O p e r at i o n
O PER ATO R 'S CHE C K S
P ower Se n so r
8481 Β an d 8482 Β ( r e m o v e atte nu ato r )
8481 Α , 8482 Α , 8481 Η , 8482 Η
8485 Α (HP 1250-1250 Ad a p te r r e quir e d)
8483 Α (HP 1250-0597 M ech a ni ca l Ad a p te r r e quir ed)
8484 Α (HP 11708 Α R e f e r en ce A tte nuato r rr e quir ed)

3
MW
~ + -
1 μ
W
9 .

Stepthe CA L FA C T O R swi tc
h thr o u g h i
ts
r a nge n ot in gα sm a ll in c r ease in m ete r r ea din g wi t h
eac h su ccess iv e ste p . R eset t
h
e C
AL FA
C
T O R sw i tc h to 100% ο .
10 . Set t
h
e R
A N
G
E swi
tc
h
to t
h
e pos
i t i on indi cated in th e ta bl e be l ow . Th e n, a d j u st t he CA L ADJ
co
n
t
r o l f
o
r
α
full
-sca
l e m ete r r ea din g f o r 50 Ω p owe r se nso r s a nd α 96% ο o f full sca l e m ete r r ead in g
f o
r
75 Ω p o w e
r
sen so r s .
P ower Sensor
8481
Β
a nd 8482
Β ( r
e
m o ve atte nu ato r )
8481
Α ,
8482
Α ,
8481
Η , 8482 Η
8485 Α (HP 1250-1250 Ad a p te r r e quir e d)
11 . C heck at t he r ea r p a n e l RE CO RDER OUTPUT j ac k f o r an o u t pu t o f = 1 Vd c .
F ig u re
3-3 . O p
erator's
C
h ec k s
(2 of 2)
R ANGE Switc h
I

M ete r
Posit!an
I
nd
ication
3 m W

Ι

1 m W
3 m W

Ι

1 m W
3 m W

Ι

0 .96 m W
R AN G E Switc h P ositio n
1 W
8483 Α (HP 1250-0597 M ech a ni ca l Ad a p te r r e quir e d)
8484 Α
(HP
11708 Α R e f e r e n ce A tte nu ato r r e quir e d)

1

1
μ
W
12 . To ch ec k ope r at i on us in g b atte ry po w e r, di sco nn ect t h e p o w e r ca bl e fr o m t h e r ea r p a ne l p o w e r
m o dul e r ece p tac l e a nd set t h e LINE swi tc h to ON (t he l a mp wi t hin t he s wi tc h l ens w ill n ot be
illumin ate d) . W h e n α p owe r m eas ur e m e n t i s m a d e, α n o rm a l up sca l e r ea din g
indi
cates
n
o
rm
a
l
op e r at i on ; α full d ow n -sca l e r ead in g indi cates the b atte ry i s di sch a r ge d .
3-7

HP 435B Specifications

General

Brand	HP
Model	435B
Category	Measuring Instruments
Language	English