Application Connections; Local Sense Connections; Remote Sense Connections; Parallel Connections - Keysight N3300A User Manual

Installation - 3

Application Connections

Local Sense Connections

Figure 3-10 illustrates a typical setup with module number 1 connected for constant current or constant
resistance operation. Local sensing is used in applications where lead lengths are relatively short, or where load
regulation is not critical. The sense switch must be set to LCL. Load leads should be bundled or tie-wrapped
together to minimize inductance.
N3300A
Figure 3-10. Local Sensing

Remote Sense Connections

Figure 3-11 illustrates a typical setup with module number 1 connected for remote sense operation. The remote
sense terminals of module 1 are connected to the output of the power supply. Remote sensing compensates for
the voltage drop in applications that require long lead lengths. This is only useful when module 1 is operating in
CV or CR mode. Remote voltage sensing also provides greater accuracy when using voltage readback in all
operating modes. The sense switch must be set to RMT. Load leads should be bundled or tie wrapped together
to minimize inductance.

Parallel Connections

Figure 3-12 illustrates how modules can be paralleled for increased power dissipation. Up to six modules in one
mainframe can be directly paralleled in CC or in CR mode. Modules cannot be paralleled in CV mode. Each
module will dissipate the power it has been programmed for. For example, if two modules are connected in
parallel, with module number 1 programmed for 10 A and module number 2 programmed for 20A, the total
current drawn from the source is 30 A.
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