HP 3457A Service Manual page 14

General Informatiol~
Table
1.1.
Specifications
DC CURRENT (Cont
'd)
MAXIMUM 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
1 PLC
10 PLC
100 PLC
DIGITS
D l SPLAYED
I
READING RATE
R e a d i n g R a t e s a p p l y w i t h t h e k e y b o a r d l o c k ON, A u t o - Z e r o OFF, D i s p l a y OFF, Math F u n c -
t i o n OFF, D e l a y Time s e t t o 0.0, Manual r a n g i n g , r e a d i n g s s t o r e d i n i n t e r n a l memory
u s i n g T i m e r T r i g g e r and s i n g l e p r e c i s i o n i n t e g e r f o r m a t .
RESISTANCE
(2-Wire Ohms, 4-Wire Ohms, O f f s e t Compensated Ohms)
6 1 / 2 d i g i t s
INPUT CHARACTERISTICS:
10 uOhm
100 uOhm
1 mOhm
10 mOhm
100 mOhm
1 Ohm
10 Ohm
100 Ohm
1 KOhm
RANGE
(OHMS)
30
300
3 k
3 0 k
300 k
3 M
3 0 M
300 M*
3
G *
5 1 / 2 d i g i t s
100 uOhm
1 mOhm
10 mOhm
100 mOhm
1 Ohm
10 Ohm
100 Ohm
1 KOhm
10 KOhm
MAX I M U M
READING
6 1 / 2 d i g i t s
30.30000 Ohm
303.0000 Ohm
3.030000KOhm
30.30000KOhm
303.0000KOhm
3.030000MOhm
30.30000MOhm
303.0000MOhm
3.030000GOhm
RESOLUTION
4 1 / 2 d i g i t s
1 mOhm
10 mOhm
100 mOhm
1 Ohm
10 Ohm
100 Ohm
1 KOhm
10 KOhm
100 KOhm
3 1 / 2 d i g i t s
10 mOhm
100 mOhm
1 Ohm
10 Ohm
100 Ohm
1 KOhm
10 KOhm
100 KOhm
1 MOhm
CURRENT
THROUGH
UNKNOWN
*
On t h e E x t e n d e d Ohms r a n g e s ( 3 0 0 MOhm & 3 GOhm), t h e c u r r e n t s o u r c e i s 100 nA i n
p a r a l l e l w i t h 10 MOhms.
INPUT PROTECTION: ( n o n - d e s t r u c t i v e )
H I s e n s e t o LO sense: f 3 5 0 ~ peak.
H I o r LO t o E a r t h g r o u n d : f 4 5 0 ~ peak.
MAXIMUM OPEN CIRCUIT VOLTAGE:
3 0 Ohm t o 3 Megohm r a n g e s : 12 v o l t s
3 0 Megohm t o 3 Gigaohm r a n g e s : 8.5 v o l t s