HP 3457A Service Manual page 22

Cienernl Information
Table
1-1.
Specifications
. 0 0 0 5 PLC
3 1 / 2
d i g i t s
8
8
8
3 3
9
1 6
7 4
TRUE RMS AC VOLTAGE (Cont'd)
9 0
DAY: T c a l
+
(ACDCV F u n c t i o n ) A f t e r
1
h o u r w a r m - u p
3 0
rnV t o
3 0 0
V r a n g e s
FREQUENCY
*
PERCENT
0 F
READING
NUMBER O F COUNTS
> =
1
PtC
6 1 / 2
d i g i t s
0 . 1
PLC
5 1 / 2
d i g i t s
. 0 0 5
PLC
4 1 / 2
d i g i t s
9 0
DAY: T c a l
t
1
O C
(ACDCV F u n c t i o n ) A f t e r
1
h o u r warm-up
3 0 0
V r a n g e
PERCENT
0 F
READ I N G
FREQUENCY NUMBER O F COUNTS
> = 1 PLC
6 1 / 2 d i g i t s
0 . 1 PLC
5 1 / 2
d i g i t s
3 6 4
3 6 4
3 6 4
2 8 1 0
6 5 0
. 0 0 0 5 PLC
3 1 / 2
d i g i t s
. 0 0 5 PLC
4 1 / 2
d i g i t s
4 1
4 1
4 1
2 8 5
6 9
r i t h i n one week o f A C a u t o - c a l (ACAL
2 )
f o r s t a b l e t e m p e r a t u r e c o n d i t i o n s
*
S p e c i f i c a t i o n s a p p l y
h
( T c a l
k 5 ' ~ ) .
I f A C a u t o - c a l i s n o t u s e d , add
0 . 6
t o t h e p e r c e n t o f r e a d i n g f i g u r e s , a d d
3 9 0 0 0
t o t h e 6 1 / 2 d i g i t c o u n t s , add 3 9 0 0 t o t h e
5
1 / 2 d i g i t c o u n t s , add 3 9 0 t o t h e
4 1 / 2
d i g i t
c o u n t s a n d 3 9 t o t h e 3 1 / 2 d i g i t c o u n t s .
**
U s i n g A C f a s t f i l t e r (ACBAND
4 0 0 )
f o r f r e q u e n c i e s above
4 0 0 H z .
F o r 1 y e a r s p e c i f i c a t i o n s , a d d . I % t o 2 4 h o u r p e r c e n t o f r e a d i n g f i g u r e s , a d d 2 1 0 0 t o 6 1 / 2
d i g i t c o u n t s , a d d
2 1 0
t o t h e
5 1 / 2
d i g i t c o u n t s , add
2 1
t o t h e
4 l / 2
d i g i t c o u n t s , a d d
2 . 1
t o
t h e
3 1 / 2
d i g i t c o u n t s .
TEMPERATURE COEFFICIENT
-
D C COUPLED:
3 0 0
mV,
3 0 V
and
3 0 0 V r a n g e s
FREQUENCY PERCENT
READlNG
NUMBER O F COUNTS
6 1 / 2 d i g i t s
1 0 0 0
1 3 0 0
3 l / 2 d i g i t s
1
. o
1 . 3
5 1 / 2 d i g i t s
1 0 0
1 3 0
4 l / 2 d i g i t s
1 0
1 3