Front panel
Rear panel
Connect the load to the output terminals using separate connecting wires. Keep the wire-pair as short as possible
and twist or bundle it to reduce lead inductance and noise pickup. Keep the load leads under 14.7 meters (50 feet)
per lead because of inductance effects.
Connect the sense leads as close to the load as possible. Do NOT bundle the sense wire-pair together with the load
leads; keep the load wires and sense wires separate. The sense leads carry only a few milliamperes of current and
can be a lighter gauge than the load leads. However, any voltage drop in the sense leads can degrade the voltage
regulation of the instrument. Try to keep the sense lead resistance less than about 0.5 Ω per lead (this requires 20
AWG or heavier for a 50-foot length).
After turning the unit on, activate 4-wire remote voltage sensing by pressing Source Settings > Sense 4w. Refer to
Specifying 2-Wire or 4-Wire Sense
Open sense leads
The sense leads are part of the output's feedback path. Connect them in such a way so that they do not inadvertently
become open circuited. The power supply includes protection resistors that reduce the effect of open sense leads
during 4-wire-sensing. If the sense leads open during operation, the power supply returns to the local sensing mode,
with the voltage at the output terminals approximately 5% higher than the programmed value.
Keysight E36150 Series User's Guide
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