Keysight U3606B Mode D'emploi page 134

3 DC Power Supply Operation
Remote Sensing
Remote sensing is used to maintain regulation at the load and reduce degradation
of regulation that would occur due to the voltage drop in the leads between the
power supply and the load. Use remote sensing in applications where load
regulation at the load is critical.
Remote sensing is especially useful in constant voltage mode with load
impedances that vary or have significant lead resistance. It has no effect in
constant current mode. Because sensing is independent of other U3606B
functions, it can be used regardless of how the U3606B is programmed. With
remote sensing, voltage readback monitors the load voltage at the remote sense
points.
By connecting the power supply for remote voltage sensing, voltage is sensed at
the load rather than at the U3606B output terminals (+ FORCE –). This will allow
the U3606B to automatically compensate for the voltage drop in applications with
long lead lengths as well as to accurately read back the voltage across the load.
Refer to
the maximum allowable voltage drop on the load wires.
Use twisted or shielded wires to minimize noise pick-up. If shielded wires are used,
the shield should be connected to the ground at one point, either at the power
supply chassis or the load ground. The optimal point for the shield ground should
be determined by experimentation.
During remote sensing setup, it is strongly recommended to power off the
NOTE
instrument to avoid undesirable damage to the load or the U3606B.
134
Chapter 5, "Characteristics and Specifications," starting on page 171 for
Keysight U3606B User's Guide