Section 6: Leakage current and insulation resistance
Model 2450 Interactive SourceMeter® Instrument User's Manual
6-2
2450-900-01 Rev. A / June 2013
Set up remote communications
This application can be run from the front panel or any of the supported communication interfaces for
the instrument (GPIB, USB, or ethernet).
The rear panel connection locations for the remote communication interfaces are shown in the
following figure. For additional information about setting up remote communications, see
(on page 3-1).
Figure 22: Model 2450 remote interface connections
Device connections
For these applications, connect the device under test (DUT) between the FORCE HI and FORCE LO
terminals of the Model 2450.
Depending on the device under test, the current measurement is typically very small, usually <10 nA.
Because measuring leakage current and insulation resistance involves measuring very small values,
connect the DUT to the Model 2450 rear panel with low-noise triaxial cables for more accurate
readings.
The following figure shows two circuit diagrams: One for measuring the leakage current of a capacitor
and the other for measuring the insulator resistance between two conductors of a coaxial cable.
