Keithley SourceMeter 2600B Series, Справочное руководство

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Section 4: Theory of operation Series 2600B System SourceMeter® Instrument Reference Manual
4-22 2600BS-901-01 Rev. C / August 2016
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.
Figure 102: Series 2600B measure voltage only
1
Current source (0.00000 µ A)
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 Output-off states (on page 2-76) for more information on the output-off
states. See Limits (on page 2-28) for details on compliance limit.
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.
Figure 103: Series 2600B measure current only