User Manual
24
When using 4Wire, please connect the rear wiring correctly before turning it on. The
internal power supply switches between 2-Wire or 4-Wire modes by connecting or
disconnecting the sense end and the corresponding output end through a relay. In 2Wire
mode, the sense end is connected to the main line internally.
In 4-Wire mode, the power supply adjusts the voltage through the voltage at both ends of
the load (not the output voltage), and compensates for the voltage drop in the wire. This is
suitable for situations where the impedance of the connecting wire is high. Since 4-Wire is
independent of other power functions, it can be used regardless of how the instrument is
programmed.
Please do not entangle the sense line with the main line. The voltage drop on the sense line
will affect the voltage regulation of the power supply, so the sense line needs to be as short
as possible and needs to be rotated, wound or bundled together to reduce the inductance
and noise of the leads. The sense wire only has a few milliamps of current, but any voltage
drop on the wire can reduce the voltage regulation of the instrument. Try to keep the
resistance of the induction leads below 0.5 Ω for each wire.
In 2-Wire mode, please use front output; In 4-Wire mode, please use post output. The front
and rear outputs of the same channel cannot be used simultaneously.
4. Channel delay
Set the channel delay in Source Settings, the range of delay that can be set is 0
～
3600s.
After setting the delay, press [All On/Off] on the front panel, and each channel will output
and close in the order of delay.