Figure 5-11 Measure-Only (V Or I) - Keithley 6430 Instruction Manual

Measure only (V or I)
Figure 5-11 shows the configurations for using the SourceMeter exclusively as a voltmeter
or ammeter. As shown in Figure 5-11A, the SourceMeter is configured to measure voltage-only
by setting it to source 0A and measure voltage.
CAUTION
In Figure 5-11B, the SourceMeter is configured to measure current-only by setting it to
source 0V and measure current. Note that in order to obtain positive (+) readings, conventional
current must flow from IN/OUT HI to LO.
NOTE
Figure 5-11
Measure-only (V or I)
V-Compliance must be set to a level that is higher than the measured volt-
age. Otherwise, excessive current will flow into the SourceMeter. This cur-
rent could damage the SourceMeter. Also, when connecting an external
voltage to the I-Source, set the output off state to the high-impedance
mode. See Section 12, Output configuration.
If the Remote PreAmp is not used, use the INPUT/OUTPUT H1 and LO terminals on
the mainframe. Note however, that when not using the Remote PreAmp, the 100nA
through 1pA current ranges are not available.
6430
I-Source
V-Meter
(0.00000pA
A. Measure Voltage Only
6430
I-Meter
V-Source
(000.000mV)
NOTE: Positive current flowing out of input/output HI results
in positive (+) measurements.
B. Measure Current Only
Source-Measure Concepts
Sense Selection: 2-wire
HI
REMOTE IN/OUT
PreAmp HIGH
LO
Sense Selection: 2-wire
HI
REMOTE IN/OUT
PreAmp HIGH
LO
5-21
Voltage
DUT
Source
Positive
Current
Current
DUT
Source