Specifications - HP 3457A Service Manual

General Information
Table
1-1. Specifications
TRUE RMS AC CURRENT ( C o n t y d )
TEMPERATURE COEFFICIENT
-
DC COUPLED: A l l Ranges.
FREQUENCY PERCENT
hAXIMUM READING RATES: ( R e a d i n g s / S e c o n d )
INTEGRATION
TIME
0.0005 PLC
0.005 PLC
0.1 PLC
I PLC
10 PLC
100 PLC
DIGITS
DISPLAYED
NUMBER OF COUNTS
3 1 / 2 d i g i t s
~------
R e a d i n g R a t e s a p p l y w i t h A u t o - z e r o ON, f i x e d r a n g e a n d p r e p r o g r a m m e d s e t t l i n g t i m e s .
*
ACBAND s e t t o
<
400 f o r AC s l o w r e s p o n s e and s e t t o > 400 f o r AC f a s t r e s p o n s e .
READING RATE
FREQUENCY AND PERIOD
M e a s u r e s t h e f r e q u e n c y o r p e r i o d o f t h e ac component o f ac o r d c c o u p l e d v o l t a g e o r c u r r e n t .
The c o u n t e r u s e s a r e c i p r o c a l c o u n t i n g t e c h n i q u e t o p r o v i d e c o n s t a n t r e s o l u t i o n i n d e p e n d e n t o f
*
AC SLOW RESPONSE
t h e i n p u t f r e q u e n c y
6 0 Hz
1
.o
1
.o
1 . O
1 . O
0 . 7
0.2
*
AC FAST RESPONSE
INPUT IMPEDANCE:
I
megohm s h u n t e d b y < 9 0 p i c o f a r a d s
50 Hz
1
.o
1
.o
1 . O
1 .O
0.65
0.17
6 0 Hz
9.5
9.5
9.25
7.25
2.0
0.25
MAXIMUM INPUTS:
V o l t a g e :
I n p u t T e r m i n a l s
-
k
450V p e a k .
H I o r LO t o E a r t h Ground
-
*
450V peak.
C u r r e n t :
5 0 Hz
9.5
9.5
9 . 2
6 . 9
1 . 7
0.2
1.5 amps f r o m 250 v o l t s o u r c e . I n p u t i s f u s e p r o t e c t e d .
FREQUENCY RANGE:
V o l t a g e F u n c t i o n
-
10Hz t o 1.5MHz
C u r r e n t F u n c t i o n
-
lOHz t o 100KHz
PERIOD RANGE:
V o l t a g e F u n c t i o n
-
100msec t o 667nsec
C u r r e n t F u n c t i o n
-
100msec t o 10usec