Getting Started 1-9
Mainframe rear panel summary
The rear panel of the Model 6430 is shown in Figure 1-2.
Source-measure connectors:
CAUTION When using the Remote PreAmp, DO NOT use the INPUT/OUTPUT HI
and 4-WIRE SENSE HI banana jacks. Using these source-measure
banana jacks will result in errors and/or noise, and possible damage to the
Remote PreAmp. Use the input/output HI and sense HI terminals on the
Remote PreAmp.
INPUT/OUTPUT HI and LO Use to source-measure volts, amps, and ohms.
4-WIRE SENSE HI and LO Use for 4-wire remote sensing.
V, Ω GUARD Driven guard for guarded measurements.
GUARD SENSE Use to correct for IR drops in Guard Output lead.
Earth (chassis) ground screw.
WARNING INPUT/OUTPUT LO is not internally connected to the chassis and can
float up to 42V peak above chassis ground.
The maximum allowable voltage differentials between the various terminals are provided on
the rear panel of the mainframe (see Figure 1-2):
Low voltage differentials — The maximum low voltage differentials are 5V peak. How-
ever, to achieve rated accuracy, do not exceed 1V peak on the 100µA through 100mA ranges.
For the lower current ranges (1pA through 10µA), do not exceed the maximum allowable resis-
tance. The maximum resistance for each of these current ranges are provided in Section 2 (see
Connections to DUT, 4-wire sensing specification clarifications).
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
MADE IN
U.S.A.
INPUT/
OUTPUT
42V
PEAK
250V
PEAK
TRIGGER
LINK
4-WIRE
SENSE
HI
LO
LINE RATING
100-240VAC
50, 60, HZ
100VA MAX
RS232
IEEE-488
(ENTER IEEE ADDRESS
WITH FRONT PANEL MENU)
250V
PEAK
5V
PEAK
5V
PEAK
5V
PK
V, Ω,
GUARD
GUARD
SENSE
LINE FUSE
SLOWBLOW
2.5A, 250V
INTERLOCK-
DIGITAL I/O
REMOTE
PreAmp
!
INTERLOCK-
DIGITAL I/O
Figure 1-2
Model 6430
rear panel
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