DT5471

The CAEN Mod. DT5471 is a desktop module housing one high voltage power supply channel delivering up to 3 kV and 500 µA, with a maximum output power of 1 W. The unit is available with either positive or negative output polarity and is powered via the USB link.

The HV output is delivered through a Radiall R317580 SHV coaxial connector; for further technical information, consult our connectors reference page. Ramp-up and ramp-down rates can be set from 1 to 500 V/s in 1 V/s steps. The module offers 10 nA Iset/Imon resolution, and the x10 Imon Zoom increases the current monitor resolution to 1 nA. All functional parameters can be programmed and monitored via USB.

The module also includes dedicated safety features that allow it to operate as a current generator. The channel can be enabled or disabled through a front panel manual switch or via the interlock logic, and a warning is issued when the output voltage differs from the programmed value. When the channel attempts to exceed its programmed current limit, it is flagged as being in “overcurrent” and enters TRIP status: the output voltage is adjusted to keep the current below the programmed limit for a programmable TRIP time, after which the channel is switched off. If TRIP is set to “constant current mode”, the channel behaves as a current generator. A hardware VMAX limit can be set via a front panel potentiometer, and its value can be read out via software.

Software is available for Windows: the LabVIEW Instrument Driver and the DT547x Control Software, a LabVIEW application with logging capability. Through its graphical user interface, the DT547x Control Software allows all the unit’s functional parameters to be set and monitored, and while running it creates a data-log file that records any changes in the monitored parameters.