Keithley 2601B Reference Manual page 247

Series 2600B System SourceMeter® Instrument Reference Manual
Measure only (voltage or current)
The figures below show the configurations for using the instrument exclusively as a voltmeter or
ammeter.
As shown in the following figure, to configure the instrument to measure voltage only, set it to source
0 A and measure voltage.
Current source (0.00000 µA)
1
2 Voltmeter
3 DUT (voltage source)
Set the voltage limit to a level that is higher than the measured voltage. If the voltage limit is set to a
level that is lower than the measured voltage, excessive current will flow into the instrument
instrument. This current could damage the instrument. Also, when connecting an external energy
source to the instrument when it is configured as a current source, set the output off state to the
high-impedance mode. See
states. See
In the following figure, the instrument uses a 2-wire local sensing configuration and is set to measure
current only by setting it to source 0 V and measure current. Note that to obtain positive (+) readings,
conventional current must flow from HI to LO.
2600BS-901-01 Rev. B / May 2013
Figure 104: Series 2600B measure voltage only
Output-off states
Limits (on page 2-27) for details on compliance limit.
Figure 105: Series 2600B measure current only
(on page 2-77) for more information on the output-off
Section 4: Theory of operation
4-21