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2-10
Connections
Ohms guard
Use ohms guard for the following source-measure operation:
•
In-circuit resistance measurements on the DUT where other parasitic leakage devices
are present.
Note that ohms guard must be selected for this connection scheme. See
Guard selection
to
select ohms guard.
NOTE
Ohms guard cannot be accessed from the Remote PreAmp. It is only available at the
rear panel of the mainframe.
Figures 2-5, 2-6, and 2-7 show how to make connections to measure the resistance of a
single resistor (DUT) in a resistor network. See Section 4,
6-wire ohms measurements
and
Section 5,
Guard
for more information on guarded ohms measurements.
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
!
Triax Cable
HI
DUT
WARNING Guard is at the same voltage level as
input/output high. Therefore, if a
hazardous voltage (
≥
42V peak) is
present on input/output high, it is also
present on the guard terminals of the
Remote PreAmp and mainframe.
KEITHLEY
6430
REMOTE
PreAmp
SENSE
MAINFRAME
LO
Banana Plug Cable
6430 Mainframe (rear panel connectors)
Resistor
Network
Ohms
Guard
I
G
IN/OUT
HIGH
Preamp
Cable*
≥
1k
Ω
R
G
*Keithley part number: CA-176-1D.
Figure 2-5
Guarded ohms
connections (basic)
Содержание 6430
Страница 26: ......
Страница 32: ......
Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
Страница 498: ...B 10 Status and Error Messages ...
Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
Страница 557: ......