HP 435B - 4-7. Instrumentation Accuracy Test with Calibrator

M o
d
e
l
435 Β

P e rf o rm a n ce T ests
4-7 .
I N
ST
RUMEN
TATIO
N
ACC UR ACY
T
E ST WIT H CA L I BR ATO R
S PE C IFI C ATI O N : ±1% ο o f full
sca
l
e on
all r
a
n
ges .
PERF O RM A N C E T E STS
DE SC RIPTI O N :

In
st
rum
e
n
tat
i
o
n
acc ur acy
i
s v e rifi e
d
by co uplin g α full -sca l e r e fe r e n ce inpu t fr o m t h e
HP
11683
Α
Ca
libr
ato
r
to t
h
e P owe r M ete r on eac h r a n ge . V e rify t h at t h e RE CO RDER
O UTPUT l e v
e
l i
s
wi
t
hin ±1% ο
plus
n
o i se a nd drif t .
R A N G E
CA
L I BR ATO
R
HP 435 Β
P
O WER ME T ER
RE CORD ER OU T PU T
(RE A R P A NEL)
E Q UIPMENT :

Dig i ta l V o l t m ete r
. . . . . . . . . . . . . . HP 3455A
R a n ge Ca libr ato r

. . . . . . . . . . . . . . HP 11683A
DIGITA L
V
O L
T ME T ER
P O WER

INPU T
ME T ER
F ig u re 4-3
.
I n str umen
tation Acc u racy Test Set up wit h Cali b rator
PR OC EDURE :

1 . Set t h e 11683 Α RAN GE s wi tc h to 1
mW,
t h
e
F
U
N
C
TI
O
N
sw
i
tc
h
to C ALIBRATE
a nd t h e P O LARITY s wi tc h to N O RMAL .
2 .

Set t h e P owe r M ete r RAN G E s wi tc h 5 ste p s fr o m t h e fully cc w p os i t i o n .
3 .

Set t h e DVM RAN G E s wi tc h to 1000 mVd c .
4 .

Co nn ect t h e e quipm e n t
as
s h o wn in Fi g ur
e
4-3
.
5 .

Ad j u st t h e fro n t pa n e l C AL ADJ co n tr o l to pr o vid e α r ea din g of 1000 ±2 mVd c .
CA U TIO N
To avo id d a m age to t h e m ete r , set t h e Ca li b r ato r 's F UNCT I O N
co n t r o l to STAN DB Yw hil e c h an g in g t h e R ANG E con t r o l set-
t in gs on t h e P owe r M ete r a nd Ca li brato r .