HP 435B - Page 49

Ad j u st m e n ts

M od e l 435 Β
Γ 1~1 τλ
i7 Τ i~~1 ι ~9
5-8 . P O WER ME T ER AD JU ST MEN TS
W IT H 50 ΩPO WER S EN SOR (Cont' d )
12 . Pr ess t h e
fr o n t pa n e l ZER O s wi tch, h o ld i t in, a
nd
a
d j u st t h e Au to . Z e r o O ff set
co n tr o
l A
4 R 42
f o r α D VM r ea din g o f 0 ±1 mVd c .
13 . Set t h e
RAN GE s wi tc h to t h e p os i t i o n indi cate d
in
t
h e ta bl e b e l o w ; set t h e r ea r
pa n e l P O
WER REF s wi tc h to (ON) .
P ower Senso r
8481
Β
, 8482 Β , (r
e m o v e atte nu ato r )
R AN G E Switc h P ositio n
1W
8481 Α , 8482
Α , 8481 Η , 8482 Η

1

1 mw
8485 Α
(HP
1250-1250 Ad ap te r re quir e d)

1

1 mw
8484 Α
(HP
11708 ΑR efere n ce A tte nu ato r r e quir e d)
14 . Pr ess t h e ZER O sw i tc
h , h o ld i t in, a nd ad j u st t h e B a l a n ce Ad j u st
m
e
n t, A 4 R 46,
un t il t h e DVM r ea din g
i
s 961
±1 mVd c .